Alcator C-Mod Run 1120808 Information

Miniproposals

Miniproposal: 713

Date Filed: 7/13/2012

Title: Impurity Transport in H-modes of Varying Collisionality

First Author: Mark Chilenski

Session Leader: Mark Chilenski (shots 1-34)

Operators
Session leader(s):	Mark Chilenski
Physics operator(s):	Robert Granetz
Engineering operator(s):	Andy Pfeiffer,Gary Dekow,Bill Byford

Engineering Operator Run Comment
MP713 - Impurity transport in H-modes of varying collisionality Session

Session Leader Plans

Entered: Aug 7 2012 05:28:43:200PM

Author: Mark Chilenski

Session leader plan for run 1120808 (Wednesday, August 8, 2012)
MP 713: "Impurity Transport in H-Modes of Varying Collisionality"

The objective of this run is to explore the transport of injected CaF2 in a variety of EDA H-mode conditions.

Basic Conditions:
B=5.4T
Main species: D2

Required Diagnostics:
CaF2 LBO
HiReX-SR with Ca crystal, set for 6ms time resolution
XEUS
LoWEUS
HiReX-JR (core view of 3.177 angstrom line)
Thomson scattering
(fast) TCI
ECE (all systems)

Desired Diagnostics:
PCI (core turbulence)
CECE
fluctuation reflectometry

Required Systems:
Cryopump
ICRF: all antennas, up to 4.5 MW available
Ar as needed by HiReX: <1psi in H-bottom
Ne in case we need seeding: 3psi in B-side lower
LH (maybe)

Shot Sequence:

Reference shape: 1101014019, but different target nL_04, current, and ICRF power as specified below.

Obtain TWO good shots at each condition before moving on. We are starting with the high currents in order to maximize benefit from the overnight boronization.

Order of power points to be dictated by ICRF post-boronization recovery.
Most likely will not want cryopump on the 1.0MA shots as per Jerry Hughes' advice. This will be determined depending on how steady-state the EDA H-mode is.

1.) Ip=1.0MA, P_ICRF=2.5MW, nL_04=1.0e20m^-2, injections at 0.9s, 1.2s (and possibly 1.3s or 1.4s to get more statistics on rise)
2.) Ip=1.0MA, P_ICRF=4MW, nL_04=1.0e20m^-2, injections at 0.9s, 1.2s (and possibly 1.3s or 1.4s to get more statistics on rise)
(perform power scan between those two conditions as needed for boronization recovery to obtain a steady-state discharge)

3.) Locked mode as per HiReX requirements: reference 1120626029, SET H-BOTTOM TO 100% (revert to conventional HiReX setting after shot)

4.) Ip=750kA, P_ICRF=2.5MW, nL_04=0.75e20m^-2, injections at 0.9s, 1.2s (and possibly 1.3s or 1.4s to get more statistics on rise)
5.) Ip=750kA, P_ICRF=4MW, nL_04=0.75e20m^2, injections at 0.9s, 1.2s (and possibly 1.3s or 1.4s to get more statistics on rise)

At this point we will need to carefully consider the limiter heating from condition 5 before moving on to the next conditions. Should the limiter heating be found to be too high, need to decide on higher current and/or lower powers for next two conditions.

6.) Ip=400kA, P_ICRF=2.5MW, nL_04=0.6e20m^-2 (this target density chosen based on 1100305022), injections at 0.9s, 1.1s and 1.3s
7.) Ip=400kA, P_ICRF=4MW, nL_04=0.6e20m^-2, injections at 0.9s, 1.1s and 1.3s
(perform power scan between those two conditions as needed to inspect effect on limiter heating when approaching the high-power point)

8.) Repeat locked mode: reference 1120626029, SET H-BOTTOM TO 100% (revert to conventional HiReX setting after shot)

With two of each condition obtained plus two locked modes, this plan comprises 14 desired shots.

Physics Operators Plans

Entered: Aug 7 2012 03:05:40:963PM

Author: Robert Granetz

Engineering setup for Wednesday 2012/08/08 MP713 - Impurity transport in H-modes of varying collisionality Session leader: M. Chilenski Physics operator: R. Granetz Overnight boronization, using the standard parameters and standard post-boronization ECDC Power systems as on: 1101014019 (LSN, but close to DN). A-coil configuration: +Dtop -Dbot -Jtop +Jbot; Hybrid enabled (standard configuration) Gas Setup: fill B-Top with 6 psi D2 Hybrid enabled (PG4) fill B-side lower with 3 psi Ne Hybrid DISABLED (PG1) leave B-side upper as is Hybrid DISABLED (PG2) fill B-main (C-side) with 40 psi D2 Hybrid enabled (PG3) fill H-bottom with 1 psi Ar Hybrid DISABLED (PG5) leave B-div as is Hybrid DISABLED (PG6) leave H-div as is Hybrid DISABLED (PG7) leave NINJA as is DISABLED Enable the following gate valves and shutters, assuming no vacuum problems: ECE, VUV, Z-bolo, HIREX-Sr, B-spectrometer GV, Xeus, LoWEUS Torvac setup: keep gate valves open during pulse Required systems: ICRF (4.5 MW), cryopump, overnight boronization Required diagnostics: LBO w/CaF2, HIREX-SR with Ca crystal, set for 6 ms resolution, XEUS, LoWEUS, HIREX-JR (3.177 A line), TS, fast TCI, all ECE systems Desired diagnostics: PCI, CECE, fluctuation reflectometry. ------------------------------------------------------------------------------ Boronization overnight: yes, see above ICRF: yes, up to 4.5 MW LH: no Impurity injector: yes, w/CaF2 DNB: no Cryopump: yes ------------------------------------------------------------------------------ Run plan: start from 1101014019, but with Ip=1.0 MA, nl_04=1.0e20 m-2, and Prf=2.5 MW, and multiple CaF2 injections. At some point there will be a locked mode calibration shot (1120626029). Startup segment will be taken from a recent cryopump startup. See SL plan for more details.

Entered: Aug 7 2012 04:56:15:477PM

Author: Robert Granetz

DPCS setup for start of run: Load seg 1 from seg 1 of 1120727005 (recent successful cryopump startup) Load seg 2 from seg 2 of 1101014019 ""call"" all magnetics-based estimators Set Ip to 1.0 MA Set nl_04 to 1.0e20 m-2 Load seg 4 from seg 4 of 1120626029 (locked mode reference calibration shot) Turn on segs 1 & 2 for first shot Have cryopump ready for first shot

Session Leader Summaries

Entered: Aug 8 2012 08:55:36:577PM

Author: Mark Chilenski

Session leader summary for run 1120808 (Wednesday, August 8, 2012)
MP 713: "Impurity Transport in H-Modes of Varying Collisionality"

The objective of this run was to explore the transport of injected CaF2 in a variety of EDA H-mode conditions.

Overall, this was a pretty smooth run: 34 plasma attempts, only 4 fizzles. Post-boronization recovery took a bit longer than was hoped, but things ran pretty well once we came down from the 1 MA shots.

We obtained H-mode plasmas with currents ranging from 1 MA down to 430 kA. As was anticipated, there was quite a bit of limiter heating at the 430 kA, 2.5 MW case. Switching to 470 kA with 1.5 MW and not using J antenna enabled us to get some pretty good shots with acceptable limiter heating. We ended up with enough shots left to add an intermediate current point in addition to the three originally planned, and used the last two shots to perform a small neon puffing scan at this current in order to vary the collisionality through Z_eff.

Shots that seem to pass the first cut for usefulness for detailed analysis:
009 (1MA, 2.5MW)
014 (0.95MA, 4MW)
018 (750kA, 2.5MW)
019 (750kA, 2.5MW)
021 (750kA, 4MW)
024 (470kA, 2MW)
025 (470kA, 1.5MW)
026 (470kA, 1.5MW)
028 (600kA, 2.5MW)
030 (600kA, 2.5MW)
031 (600kA, 4MW)
033 (600kA, 3MW)
034 (600kA, 4MW)

Physics Operator Summaries

Entered: Aug 8 2012 05:09:24:523PM

Author: Robert Granetz

Run summary for Wednesday 2012/08/08 MP713 - Impurity transport in H-modes of varying collisionality Session leader: M. Chilenski Physics operator: R. Granetz The goals of today's run were to have steady EDA H-modes in nearly-double-null plasmas and several different plasma currents. Since there is an empirical proportional link between the plasma and the density for achieving EDA H-modes, the scan of Ip values also entailed a scan of densities. The ICRF power was also varied at each condition. So the different densities and RF power effectively gave a scan of collisionality in EDA H-modes. CaF2 was injected multiple times during each discharge in order to measure the impurity transport as the collisionality was varied. The machine ran quite well. There were no significant problems with power supplies, computers, or the tokamak. The DNB also began operating again today, although it was not fired into plasmas. Scorecard: 30 plasmas 0 duds 4 fizzles (2 due to cryopump issues) 0 power supply tests 0 no-power MDSplus cycle tests 0 no-power gas test -------------- Total: 34 shot cycles

Session Leader Comments

Aug 8 2012 09:09:33:683AM 1120808001 Mark Chilenski Try for 1.0MA, 2.5MW.

CaF2 injections at 0.85s, 1.25s.

Result: equilibrium went practically DN. RF ~ 0.7MW, 1.0MA, nL_04 ~ 1.5e20 m^-2

Aug 8 2012 09:21:08:593AM 1120808002 Mark Chilenski Try for 1.0MA, 2.5MW.

CaF2 injections at 0.85s, 1.25s.

Result: equilibrium stayed LSN until ~1.640s. RF ~ 1.5MW, 1.0MA, nL_04 ~ 1.5e20 m^-2

Aug 8 2012 09:39:57:147AM 1120808003 Mark Chilenski Try for 1.0MA, 4MW.

CaF2 injections at 0.85s, 1.25s.

Result: Got H-mode at ~0.7s, CaF2 injection looks like it knocks it out at 0.85s. RF ~ 1MW, 1.0MA

Aug 8 2012 09:46:52:573AM 1120808004 Mark Chilenski Try for 1.0MA, 4MW.

CaF2 injections at 0.85s, 1.25s.

Result: Fizzle.

Aug 8 2012 10:05:27:150AM 1120808005 Mark Chilenski Try for 1.0MA, 4MW.

CaF2 injections at 0.85s, 1.25s.

Result: 1.0MA, ~1MW, H-mode from ~0.6s to ~1.3s.

Aug 8 2012 10:12:23:907AM 1120808006 Mark Chilenski Try for 1.0MA, 4MW.

CaF2 injections at 0.85s, 1.25s.

Result: Fizzle.

Aug 8 2012 10:32:00:310AM 1120808007 Mark Chilenski Try for 1.0MA, 4MW.

CaF2 injections at 0.85s, 1.25s.

Result: 1.0MA, ~3.7MW, H-mode from 0.73s to 1.54s.

Aug 8 2012 10:52:05:070AM 1120808008 Mark Chilenski Try for 1.0MA, 2.5MW.

CaF2 injections at 0.85s, 1.25s.

Result: 1.0MA, ~2.5MW, 2 H-modes.

Aug 8 2012 11:03:59:197AM 1120808009 Mark Chilenski Try for 1.0MA, 2.5MW.

CaF2 injections at 0.85s, 1.25s.

Result: 1.0MA, ~2.5MW, H-mode from 0.6s to 1.5s.

Aug 8 2012 11:32:21:330AM 1120808010 Mark Chilenski Try for 1.0MA, 2.5MW, with cryo.

CaF2 injections at 0.85s, 1.25s.

Result: 1.0MA, ~2.5MW, multiple H-modes.

Aug 8 2012 11:31:38:923AM 1120808011 Mark Chilenski Try for 1.0MA, 2.5MW, with cryo.

CaF2 injections at 1.0, 1.4s.

Result: 1.0MA, ~2.5MW, multiple H-modes.

Aug 8 2012 11:48:26:060AM 1120808012 Mark Chilenski Try for 1.05MA, 2.5MW, with cryo.

CaF2 injections at 1.0, 1.4s.

Result: 1.05MA, ~2.5MW, multiple H-modes.

Aug 8 2012 12:13:34:560PM 1120808013 Mark Chilenski Try for 950MA, 4MW, with cryo.

CaF2 injections at 1.0, 1.4s.

Result: 950MA, 4MW

Aug 8 2012 12:21:19:610PM 1120808014 Mark Chilenski Try for 950MA, 4MW, with cryo.

CaF2 injections at 1.0, 1.4s.

Result: 950MA, 4MW, much more steady than before.

Aug 8 2012 12:27:41:257PM 1120808015 Mark Chilenski Try for locked mode, with cryo.

CaF2 injection at 1.45s.

Result: Fizzle.

Aug 8 2012 12:41:23:850PM 1120808016 Mark Chilenski Try for locked mode, with cryo.

CaF2 injection at 1.45s.

Result: Good locked mode.

Aug 8 2012 12:56:54:823PM 1120808017 Mark Chilenski Try for 750kA, 2.5MW, with cryo.

CaF2 injections at 1.0, 1.4s.

Result: Multiple H-modes -- first injection was a bit large and knocks it out of H-mode.

Aug 8 2012 01:16:26:880PM 1120808018 Mark Chilenski Try for 750kA, 2.5MW, with cryo.

CaF2 injections at 1.0, 1.4s.

Aug 8 2012 01:29:33:430PM 1120808019 Mark Chilenski Try for 750kA, 2.5MW, with cryo.

CaF2 injections at 1.0, 1.4s.

Aug 8 2012 01:47:09:967PM 1120808020 Mark Chilenski Try for 750kA, 4MW, with cryo.

CaF2 injections at 1.0, 1.4s.

Result: Big Mo injection knocks it out, recovers.

Aug 8 2012 01:54:07:323PM 1120808021 Mark Chilenski Try for 750kA, 4MW, with cryo.

CaF2 injections at 1.0, 1.4s.

Result: Shot looks pretty good.

Aug 8 2012 02:02:27:497PM 1120808022 Mark Chilenski Try for 400kA, 2.5MW, with cryo.

CaF2 injections at 1.0, 1.4s.

Aug 8 2012 02:17:07:987PM 1120808023 Mark Chilenski Try for 400kA, 2.5MW, with cryo.

CaF2 injections at 1.0, 1.4s.

Aug 8 2012 02:31:17:993PM 1120808024 Mark Chilenski Try for 450kA, 2MW (D and E only), with cryo.

CaF2 injections at 1.0, 1.2, 1.4s.

Aug 8 2012 02:46:45:427PM 1120808025 Mark Chilenski Try for 450kA, 1.5MW (D and E only), with cryo.

CaF2 injections at 1.0, 1.2, 1.4s.

Aug 8 2012 03:01:01:300PM 1120808026 Mark Chilenski Try for 450kA, 1.5MW (D and E only), with cryo.

CaF2 injections at 1.0, 1.2, 1.4s.

Aug 8 2012 03:14:30:230PM 1120808027 Mark Chilenski Try for 600kA, 2.5MW, with cryo.

CaF2 injections at 1.0, 1.4s.

Aug 8 2012 03:29:16:693PM 1120808028 Mark Chilenski Try for 600kA, 2.5MW, with cryo.

CaF2 injections at 1.0, 1.4s.

Aug 8 2012 03:48:05:450PM 1120808029 Mark Chilenski Try for 600kA, 2.5MW, with cryo.

CaF2 injections at 1.05, 1.45s.

Result: fizzle.

Aug 8 2012 04:00:09:370PM 1120808030 Mark Chilenski Try for 600kA, 2.5MW, with cryo.

CaF2 injections at 1.05, 1.45s.

Aug 8 2012 04:12:30:453PM 1120808031 Mark Chilenski Try for 600kA, 4MW, with cryo.

CaF2 injections at 1.05, 1.45s.

Aug 8 2012 04:29:44:807PM 1120808032 Mark Chilenski Try for 900kA, 3MW, with cryo.

CaF2 injections at 1.05, 1.45s.

Aug 8 2012 04:55:06:873PM 1120808033 Mark Chilenski Try for 600kA, 4MW, with cryo. Add Ne seeding.

CaF2 injections at 1.05, 1.45s.

Result: 3MW of RF.

Aug 8 2012 05:01:19:830PM 1120808034 Mark Chilenski Try for 600kA, 4MW, with cryo. Increase Ne seeding.

CaF2 injections at 1.05, 1.45s.

Physics Operator Comments

Aug 8 2012 08:50:36:230AM Robert Granetz
SL has decided that we do not want the cryopump for the 1 MA shots today, which includes the start of the run. So no cryopump for shot 1. Therefore I have reloaded seg 1 with seg 1 from 1120807031 (a good startup from yesterday). PG4 pulse is 18 ms, rather than the 45 ms used in the previously loaded cryopump startup.

Aug 8 2012 09:09:17:637AM 1120808001 Robert Granetz
Shot 01 -- Plasma, full length. 1.0 MA, 5.4 T, 1.0e20 m-2 (target), SNL then DN, Prf=0.65 MW only nl_04=1.5e20 m-2 (too high...boronization recovery?) Next shot: move ZCUR down by 5 mm

Aug 8 2012 09:26:28:793AM 1120808002 Robert Granetz
Shot 02 -- Plasma, full length. 1.0 MA, 5.4 T, 1.3e20 m-2, LSN (close to DN, as desired), Prf=1.4 MW. Density is coming down on its own, but still needs to come down some more. J-port antenna needs some more shots also for boronization recovery. CaF2 injections are at t=0.85 s and 1.25 s. Next shot: increase Ar puff to 50 ms (was 40 ms); increase Prf to 4 MW

Aug 8 2012 09:40:09:557AM 1120808003 Robert Granetz
Shot 03 -- Plasma. 1.0 MA. Disrupted in rampdown due to an injection. Went into H-mode at 0.7 s, but a CaF2 injection at t=0.85 s dropped it out. Prf=1.1 MW, only E-port stayed on. nl_04=1.1e20 m-2 (target). Next shot: no DPCS changes; repeat for RF conditioning; smaller CaF2 injection

Aug 8 2012 09:50:54:807AM 1120808004 Robert Granetz
Shot 04 -- Fizzle Next shot: add -10 amps to IC_EF4; reduce pre-fill by 1 ms

Aug 8 2012 10:09:32:637AM 1120808005 Robert Granetz
Shot 05 -- Plasma, full length. 1.0 MA, 5.4 T, 1.1e20 m-2, H-mode, Prf=2.0 MW. The ICRF still needs more tuning/conditioning. Next shot: repeat, no DPCS changes

Aug 8 2012 10:18:21:910AM 1120808006 Robert Granetz
Shot 06 -- Fizzle Next shot: reduce early PG3 gas programming

Aug 8 2012 10:30:56:630AM 1120808007 Robert Granetz
Shot 07 -- Plasma, full length. 1.0 MA, 5.4 T, 1.1e20 m-2, LSN (nearly DN), Prf=3.7 MW, LBO w/CaF2. Next shot: reduce Prf to 2.5 MW

Aug 8 2012 10:45:33:523AM 1120808008 Robert Granetz
Shot 08 -- Plasma, full length. 1.0 MA, 5.4 T, 1.1e20 m-2, LSN (nearly DN), Prf=2.5 MW, LBO w/CaF2. Next shot: add -10 A to IC_EF4 (to -1310 A)

Aug 8 2012 10:58:29:537AM 1120808008 Robert Granetz
Shot 09 -- Plasma, full length. 1.0 MA, 5.4 T, 1.1e20 m-2, LSN (nearly DN), Prf=2.5 MW, LBO w/CaF2. Next shot: no DPCS changes

Aug 8 2012 11:09:05:230AM 1120808009 Robert Granetz
Shot 09 -- Plasma, full length. 1.0 MA, 5.4 T, 1.1e20 m-2, LSN (nearly DN), Prf=2.5 MW, LBO w/CaF2. Terrible startup...pre-fill pressure was way too low, even though the programmed pulse was correct (17 ms). Cryopump was cooling down in preparation for shot 10, and it looks like it actually started pumping on this shot. Next shot: cryopump; set pre-fill pulse to 45 ms (was 17 ms)

Aug 8 2012 11:18:26:697AM 1120808010 Robert Granetz
Shot 10 -- Plasma, full length. 1.0 MA, 5.4 T, 1.1e20 m-2, LSN (nearly DN), Prf=2.5 MW, LBO w/CaF2. Cryopump startup. Next shot: reduce Ar puff back to 40 ms

Aug 8 2012 11:34:10:950AM 1120808011 Robert Granetz
Shot 11 -- Plasma, full length. 1.0 MA, 5.4 T, 1.1e20 m-2, LSN (nearly DN), Prf=2.5 MW, LBO w/CaF2. Cryopump startup. Next shot: increase Ip to 1.05 MA

Aug 8 2012 11:51:28:553AM 1120808012 Robert Granetz
Shot 12 -- Plasma, full length. 1.05 MA, 5.4 T, 1.1e20 m-2, LSN (nearly DN), Prf=2.5 MW, LBO w/CaF2. Cryopump startup. Next shot: decrease Ip to 0.95 MA; increase nl_04 to 1.15e20 m-2; Prf will be 4 MW

Aug 8 2012 12:10:47:243PM 1120808013 Robert Granetz
Shot 13 -- Plasma, full length. 0.95 MA, 5.4 T, 1.15e20 m-2, LSN (nearly DN), Prf=4.0 MW, LBO w/CaF2. Cryopump startup. Next shot: no changes

Aug 8 2012 12:23:00:230PM 1120808014 Robert Granetz
Shot 14 -- Plasma, full length. 0.95 MA, 5.4 T, 1.15e20 m-2, LSN (nearly DN), Prf=4.0 MW, LBO w/CaF2. Cryopump startup. Long steady EDA H-mode. Next shot: locked mode calibration shot...turn off seg 2, turn on seg 4; set Ar pulse in seg 4 to be 100 volts for 200 ms, starting at t=0.4 s; no ICRF

Aug 8 2012 12:28:53:030PM 1120808015 Robert Granetz
Shot 15 -- Fizzle. Looks like cryopump didn't stay cold. Next shot: repeat this locked mode calibration shot; cryopump will be run manually

Aug 8 2012 12:58:27:600PM 1120808016 Robert Granetz
Shot 16 -- Plasma, locked mode calibration shot. Locks at t=0.65 s. Next shot: continue with run from shot 14, but decrease Ip to 0.75 MA and nl_04 to 0.85e20 m-2; turn ICRF back on

Aug 8 2012 12:58:06:113PM 1120808017 Robert Granetz
Shot 17 -- Plasma, full length. 0.77 MA, 5.4 T, 0.90e20 m-2, LSN, Prf=2.5 MW, LBO w/CaF2. Cryopump startup. CaF2 at 1.0 s causes H-L back-transition Next shot: repeat; less CaF2

Aug 8 2012 01:15:06:797PM 1120808018 Robert Granetz
Shot 18 -- Plasma, full length. 0.77 MA, 5.4 T, 0.90e20 m-2, LSN, Prf=2.5 MW, LBO w/CaF2. Cryopump startup. Next shot: repeat

Aug 8 2012 01:29:17:413PM 1120808019 Robert Granetz
Shot 19 -- Plasma, full length. 0.77 MA, 5.4 T, 0.90e20 m-2, LSN, Prf=2.5 MW, LBO w/CaF2. Cryopump startup. Next shot: no DPCS changes; increase Prf to 4 MW

Aug 8 2012 01:43:31:723PM 1120808020 Robert Granetz
Shot 20 -- Plasma, full length. 0.77 MA, 5.4 T, 0.90e20 m-2, LSN, Prf=4.0 MW, LBO w/CaF2. Cryopump startup. Big moly injection at t=1.15 s Next shot: repeat

Aug 8 2012 01:54:13:337PM 1120808021 Robert Granetz
Shot 21 -- Plasma, full length. 0.77 MA, 5.4 T, 0.90e20 m-2, LSN, Prf=4.0 MW, LBO w/CaF2. Cryopump startup. Next shot: Ip=0.40 MA, nl_04=0.5e20 m-2, 2.5 MW; decrease Ar pulse to 33 ms

Aug 8 2012 02:36:54:237PM 1120808022 Robert Granetz
Shot 22 -- Plasma, full length. 0.43 MA, 5.4 T, 0.53e20 m-2, LSN, Prf=2.7 MW, LBO w/CaF2. Cryopump startup. RF had some faulting problems Next shot: add -5 A to IC_EF4, otherwise repeat

Aug 8 2012 02:36:40:590PM 1120808023 Robert Granetz
Shot 23 -- Plasma, full length. 0.43 MA, 5.4 T, 0.53e20 m-2, LSN, Prf=2.7 MW, LBO w/CaF2. Cryopump startup. J-port RF had some faulting problems. Some heating of GH limiter. Next shot: set Ip to 0.45 MA; use D & E antennas only; increase Ar pulse to 50 ms

Aug 8 2012 02:46:13:413PM 1120808024 Robert Granetz
Shot 24 -- Plasma, full length. 0.48 MA, 5.4 T, 0.54e20 m-2, LSN, Prf=2.0 MW, LBO w/CaF2. Cryopump startup. Some heating of GH limiter. Next shot: repeat, reduce Prf to 1.5 MW

Aug 8 2012 02:55:32:943PM 1120808025 Robert Granetz
Shot 25 -- Plasma, full length. 0.48 MA, 5.4 T, 0.54e20 m-2, LSN, Prf=1.5 MW, LBO w/CaF2. Cryopump startup. Much less heating of GH limiter. Next shot: repeat

Aug 8 2012 03:11:38:127PM 1120808026 Robert Granetz
Shot 26 -- Plasma, full length. 0.48 MA, 5.4 T, 0.54e20 m-2, LSN, Prf=1.5 MW, LBO w/CaF2. Cryopump startup. Next shot: add +5 A to IC_EF4; Ip to 0.6 MA, nl_04 to 0.7e20 m-2, Prf to 2.5 MW

Aug 8 2012 03:22:41:130PM 1120808027 Robert Granetz
Shot 27 -- Plasma, full length. 0.62 MA, 5.4 T, 0.75e20 m-2, LSN, Prf=2.5 MW, LBO w/CaF2. Cryopump startup. Next shot: repeat

Aug 8 2012 03:32:45:620PM 1120808028 Robert Granetz
Shot 28 -- Plasma, full length. 0.62 MA, 5.4 T, 0.75e20 m-2, LSN, Prf=2.5 MW, LBO w/CaF2. Cryopump startup. Next shot: add +5 A to IC_EF4

Aug 8 2012 03:49:46:113PM 1120808029 Robert Granetz
Shot 29 -- Fizzle due to cryopump failing to stay cold. Next shot: try again

Aug 8 2012 04:04:24:067PM 1120808030 Robert Granetz
Shot 30 -- Plasma, full length. 0.62 MA, 5.4 T, 0.75e20 m-2, LSN, Prf=2.5 MW, LBO w/CaF2. Cryopump startup. Next shot: no DPCS changes; set Prf to 4 MW

Aug 8 2012 04:26:48:210PM 1120808031 Robert Granetz
Shot 31 -- Plasma, full length. 0.62 MA, 5.4 T, 0.75e20 m-2, LSN (nearly DN), Prf=4.0 MW, LBO w/CaF2. Cryopump startup. Next shot: Ip to 0.9 MA, nl_04 to 1.0e20 m-2, Prf to 3 MW

Aug 8 2012 04:59:07:607PM 1120808032 Robert Granetz
Shot 32 -- Plasma, full length. 0.90 MA, 5.4 T, 1.0e20 m-2, LSN (nearly DN), Prf=2.9 MW, LBO w/CaF2. Cryopump startup. Next shot: turn on neon puff at 30 volts from t=0.4 to 0.6 s

Aug 8 2012 04:55:46:750PM 1120808033 Robert Granetz
Shot 33 -- Plasma, full length. 0.62 MA, 5.4 T, 0.75e20 m-2, LSN (nearly DN), Prf=2.9 MW, LBO w/CaF2. Cryopump startup. Next shot: increase neon pulse amplitude to 40 volts; Prf to 4 MW

Aug 8 2012 05:02:19:540PM 1120808034 Robert Granetz
Shot 34 -- Plasma, full length. 0.62 MA, 5.4 T, 0.75e20 m-2, LSN (nearly DN), Prf=4 MW, LBO w/CaF2. Cryopump startup. End of run

Engineering Operator Comments

Shot Time Type Status Comment

1 09:01:33:780AM Plasma Ok

2 09:15:48:593AM Plasma Ok

3 09:31:55:357AM Plasma Ok

4 09:44:25:143AM Plasma Ok

5 09:57:00:740AM Plasma Ok

6 10:09:52:397AM Plasma Ok

7 10:22:19:477AM Plasma Ok

8 10:35:22:110AM Plasma Ok

9 10:59:01:627AM Plasma Ok

10 11:12:44:787AM Plasma Ok

11 11:25:32:747AM Plasma Ok

12 11:43:37:547AM Plasma Ok

13 11:58:47:140AM Plasma Ok

14 12:11:15:210PM Plasma Ok

15 12:24:33:383PM Plasma Ok

16 12:37:43:600PM Plasma Ok

17 12:50:37:893PM Plasma Ok

18 01:07:08:160PM Plasma Ok

19 01:21:58:350PM Plasma Ok

20 01:34:25:700PM Plasma Ok

21 01:47:11:370PM Plasma Ok

22 02:00:30:803PM Plasma Ok

23 02:14:01:260PM Plasma Ok

24 02:29:01:357PM Plasma Ok

25 02:46:52:947PM Plasma Ok

26 02:59:55:113PM Plasma Ok

27 03:13:03:153PM Plasma Ok

28 03:27:21:440PM Plasma Ok

29 03:45:38:713PM Plasma Ok

30 03:58:13:410PM Plasma Ok

31 04:10:37:540PM Plasma Ok

32 04:27:14:513PM Plasma Ok

33 04:46:25:823PM Plasma Ok

34 04:59:10:507PM Plasma Ok

System Availability

Aug 8 2012 09:01:13:770AM

System Available Comment Availability
Changed Owner Description Who Can
Change
Active MHD no secured - tagged out Jun 2 2008 11:03:58:433AM (sears) Joe Snipes Active MHD Antenna golfit
BES yes BES system is online Nov 22 2011 02:21:12:050PM (bespam) Bill Rowan Beam Emission Spectroscopy bespam,liao,rowan
Bolometers yes Midplane diodes functioning properly. Midplane bolometers working and calibrated. DIV bolometers installed but not yet toaster calibrated Apr 20 2012 09:57:29:520AM (mlreinke) Matt Reinke Bolometers hutch,mlreinke
Boronization yes Jun 15 2012 05:02:46:313PM (dekow) Jim Irby Boronization dekow,irby
CECE yes The system is currently operational for Te tilde measurement. Talk to Choongki about the current configuration Jul 3 2012 04:38:00:317PM (nthoward) Anne White Correlation ECE nthoward,sck83,whitea
CNPA yes Multiple channel CNPA available, no safety risk for in-vessel access Apr 14 2011 12:01:59:693PM (parker) Ron Parker Compact Neutral Analyzer parker
Cryopump - Upper Divertor yes Jun 15 2012 05:02:31:550PM (dekow) Brian LaBombard Upper Divertor Cryopump dekow,irby,labombard
CXRS yes core-CXRS system is online Nov 22 2011 02:21:22:280PM (bespam) Bill Rowan Charge Exchange Spectroscopy bespam,blip,liao,rachmcd,rowan
CXRS edge yes Michael CHurchill has primary responsibility at the moment Apr 19 2011 11:44:46:247AM (blip) Bruce Lipshultz Measurement of CXR light in the pedestal region at both the high- and low-field sides blip,rmchurch
D Alpha yes \ha2_bright is available; \SPECTROSCOPY::TOP.VUV.VIS_SIGNALS:MCP_VIS_SIG1 is not available Jul 1 2009 09:45:41:090AM (terry) Jim Terry Balmer Alpha Monitor irby,terry,wolfe
Dalsa no system is is installed and aligned, but not functional (appears to be a broken cable) Dec 5 2011 02:41:42:867PM (marmar) Earl Marmar Visible Bremsstrahlung Imaging marmar
Disruption Mitigation yes two gas jet valves active as of Feb 2012 May 15 2012 10:09:23:597AM (granetz) Robert Granetz Gas Jet granetz,whyte
Divertor IR no Mar 6 2007 10:50:41:677AM Glen Wurden Divertor IR Digital Video gwurden,terry
Divertor IR Spectroscopy no Mar 6 2007 10:51:39:897AM Glen Wurden Divertor IR Spectroscopy gwurden,terry
DMBolo AXUV diodes yes Diodes are taking usable data. Not all post-processing code is working yet. Feb 1 2012 01:24:23:953PM (golynyk) Geoff Olynyk Set of six AXUV diodes in a toroidal array of midplane wall boxes. golynyk,granetz,mlreinke,whyte
DNB yes "The beam could break at any moment." May 15 2012 10:09:52:470AM (granetz) Robert Granetz Diagnostic Neutral Beam dterry,granetz,mochung
ECDC yes Apr 26 2012 03:23:19:057PM (dekow) Jim Irby 2.45 GHz, 3 kW, discharge cleaning system dekow,irby,pfeiffer
FRC-ECE yes FRC-ECE is online May 14 2012 11:53:01:693AM (bespam) Perry Phillips Heterodyne ECE-32 channels bespam,liao,phillips,rowan,whitea
FTCI yes System Operational May 14 2012 11:50:45:590AM (irby) Jim Irby Fast two-color interferometer irby
G-Side Ratiomatic yes Installed April 25,2012. New controller installed 5/29/2012 Jun 7 2012 10:40:00:957AM (toland) Brian LaBombard G-side ratiomatic ionization gauge labombard,toland
Glow Discharge no HV cables disconnected and power supplies off. Electrical plugs have been disconnected, capped and red tagged. Mar 5 2012 10:21:53:460AM (dekow) Jim Irby 1 kV, 5 A, glow discharge system dekow,dterry,irby
GPC yes Operational Apr 27 2012 07:41:46:907AM (hubbard) Amanda Hubbard ECE Polychromater hubbard
GPC2 yes Operational Apr 27 2012 07:42:03:317AM (hubbard) Amanda Hubbard ECE Polychromater hubbard
GPI yes The Xpt-view, the midplane-view cameras are operational. The innerwall GPI (coupled to the fast-diodes) is available. Jul 1 2009 09:45:50:933AM (terry) Jim Terry Gas Puff Imaging terry,zweben
H/D yes system is functional and taking data Dec 5 2011 02:42:29:857PM (marmar) Earl Marmar H/D Ratio marmar
HEAT yes Apr 26 2012 03:23:49:607PM (dekow) Gary Dekow - Machine Heaters - burke,dekow
Hirex Jr yes Hirex-Jr has been installed Jun 28 2010 03:36:33:420PM (rice) John Rice High Resolution X-Ray ince,rice
Hirex Sr yes Installed and aligned. Will be available for Ti/Vr profiles after focusing tests and locked modes are taken. Dec 6 2011 08:21:02:453AM (ypodpaly) John Rice High Resolution X-Ray cgao,ldelgado,rice,ypodpaly
HXR yes 32 Channels operational,, no safety risk for in-vessel access Apr 14 2011 12:05:24:810PM (parker) Ron Parker Hard X-Ray Array faust,parker,schmidt
ICRF D-Antenna yes May 31 2012 09:20:06:827AM (wukitch) Steve Wukitch D-port antenna wukitch,ylin
ICRF E-Antenna yes May 31 2012 09:19:57:640AM (wukitch) Steve Wukitch E-port antenna wukitch,ylin
ICRF J-Antenna yes May 31 2012 09:19:47:443AM (wukitch) Steve Wukitch J-port antenna wukitch,ylin
Impurity Spectroscopy yes Being upgraded with better optics and new spectrographs. Dan Miller has primary responsibility. Apr 19 2011 11:46:02:193AM (blip) Bruce Lipshultz Measurement of recycling light and impurity source rates at multiple surfaces around the tokamak blip,miller
Laser Blow-Off yes Pumped Down, Laser has not yet been tested but otherwise operational May 14 2012 04:31:17:037PM (nthoward) Martin Greenwald Impurity Injection System g,nthoward
Lower Hybrid yes LH is now available for plasma operation up to ~900 kW net power. Jul 3 2012 02:50:00:693PM (wallaceg) Ron Parker Lower Hybrid dterry,parker,wallaceg
Lower Hybrid Reflectometer no off Apr 15 2011 08:24:27:930AM (dominguez) Arturo Dominguez Lower Hybrid Reflectometer dominguez,marmar,parker,sgbaek
LoWEUS yes LoWEUS viewing the 10-30 nm region, spectral brightness vs. lambda and time are being stored in tree. Apr 20 2012 10:43:34:077AM (mlreinke) Matthew L. Reinke Long Wavelength Extreme Ultraviolet Spectrometer markchil,mlreinke
LPI no Beam line removed May 30 2008 02:09:12:833PM (bose) Earl Marmar Lithium Pellet Injector bose,marmar
Ly-alpha no Midplane Lyman-a not functioning. New B-PORT Lyman (BPLY) still being debugged. Jul 12 2012 08:52:28:233AM (mlreinke) Matt Reinke Lyman alpha cameras faustian,labombard,mlreinke
Magnetics yes Dec 1 2011 11:51:51:970AM (g) Robert Granetz Bp coils and flux loops for equilibrium control granetz,wolfe
McPherson no McPherson under vacuum but is not run on a day-to-day basis. Can be requested if desired. LoWEUS has taken over as the primary Mo monitor. Jul 12 2012 08:53:14:937AM (mlreinke) Jim Terry VUV Spectrometer markchil,mlreinke,terry
Michelson yes Vacuum 3-4e-8 T. Starting with Michelson at reduced speed. Apr 27 2012 07:42:41:960AM (hubbard) Amanda Hubbard ECE Te Profiles hubbard,schmidt
MKS yes Dec 2 2011 12:27:47:163PM (toland) Brian LaBombard Baratron pressure gauges labombard,toland
MLP yes Operational. Connected to A-port probe system May 10 2012 08:40:19:910AM (labombard) Brian LaBombard Mirror Langmuir Probe Electronics System labombard
MSE yes 2/29/2012 MSE operational. No HV or vacuum safety issues Feb 29 2012 12:26:13:863PM (sscott) Steve Scott Motional Stark Effect jinseok,sscott
Neutrons yes Voltage is on for He3 detectors on J port. Remaining voltages will be turned on for the first run. Apr 23 2012 09:31:22:063AM (fiore) Catherine Fiore Neutron Detectors fiore
Neuts and Hards yes All detectors Powered On --- Waiting for neutrons for calibration Nov 22 2011 01:05:24:380PM (irby) Jim Irby X-Ray/Neutron Detectors at K-Hor irby
NINJA yes C-bottom and new F-bottom system ready. Dec 2 2011 12:28:44:843PM (toland) Brian LaBombard NINJA gas puff labombard,terry,toland
PCI yes Operational. Jul 10 2012 07:08:06:883PM (ntsujii) Miklos Porkolab Phase Contrast Imaging emd,ennever,ntsujii,porkolab
Penning Gauges yes HV power supplies turned ON in INIT, off in RECOOL May 10 2012 08:41:03:000AM (labombard) Brian LaBombard Penning Ionization Gauges labombard
Plasma TV yes WIDE1, WIDE2 (chan 33), DANT, JANT and DIV are operational. Jul 1 2009 09:46:29:543AM (terry) Jim Terry Video of plasma via several cameras dekow,irby,terry,wolfe
Polarimeter yes 3 chords operational but with high noise level Jan 6 2012 04:22:20:903PM (irby) Jim Irby C-Mod Polarimeter irby
Power - Alternator Air Switch yes Apr 26 2012 03:24:21:607PM (dekow) Gary Dekow Alternator to Power Room Power Supply Connection cochran,dekow,dterry,irby
Power - PEI yes Apr 26 2012 03:24:41:250PM (dekow) Gary Dekow PEI System cochran,dekow,dterry,irby
Power - TMX yes Apr 26 2012 03:24:57:153PM (dekow) Gary Dekow Ef2s,. EFCs and A-Coils byford,cochran,dekow,dterry,irby
Power Systems yes Apr 26 2012 03:25:14:497PM (dekow) Jim Irby C-Mod Magnet Supplies byford,cochran,dekow,dterry,irby
Probe Array - ISD yes Operational. Some dead probes. May 10 2012 08:41:58:120AM (labombard) Brian Labombard Inner Lower Divertor Probe Array labombard
Probe Array - LH yes Operational. 4 out of 6 probes working. May 10 2012 08:41:40:557AM (labombard) Brian LaBombard Lower Hybrid Probe Array labombard
Probe Array - OSD yes Operational. May 10 2012 08:42:13:733AM (labombard) Brian LaBombard Outer Lower Divertor Probe Array (F and J) labombard
Probe Array - UDIV yes Operational. Some dead probes. May 10 2012 08:42:32:663AM (labombard) Brian LaBombard Upper Divertor Probe Array labombard
Reflectometer yes On 1120608, the high frequency channels: 112, 140 and the variable, have been disconnected for some troubleshooting. All other channels are connected Jun 14 2012 11:28:59:603AM (dominguez) Earl Marmar Reflectometer dominguez,marmar
Scanning Probe - ASP yes Operational. A variety of probe heads are ready for use. May 10 2012 08:43:10:937AM (labombard) Brian LaBombard A-Port Scanning Probe labombard
Scanning Probe - FSP yes Operational. May 10 2012 08:43:24:887AM (labombard) Brian LaBombard F-Port Scanning Probe labombard
Scanning Probe - WASP no Not functioning. Probe tips are melted. Repair not performed during break. May 10 2012 08:44:43:137AM (labombard) Brian LaBombard Inner Wall Scanning Probe labombard,nsmick
Shoelace Antenna yes Operational May 10 2012 08:45:08:320AM (labombard) Brian LaBombard High-k active MHD antenna, for QCM, WCM studies golfit,labombard
SOL reflectometer yes c-port (top, middle, bottom) and h-port available. Only 1 of 4 locations can be used for each discharge May 1 2012 04:54:58:820PM (cornwall) Cornwall Lau SOL reflectometer cornwall,wukitch,ylin
Sparker yes Sparker Power Supply powered up. Connected at K port using red cable 4/23/12 9:25AM Apr 23 2012 12:06:10:983PM (parkin) Jim Irby Field Emission Preionization for C-Mod dekow,irby,parkin
Surface Science Station yes SSS is under vacuum and fully available. Jul 3 2012 02:46:59:753PM (ochoukov) Bruce Lipschultz Radially scanning probe located on K-port blip,ochoukov
TCI yes TCI lasers in operation May 14 2012 11:51:18:700AM (irby) Jim Irby Two-Color Interferometer irby,murray
TS - Core yes Operating with both lasers, density calibration ongoing. Jul 19 2012 10:20:09:220AM (jrwalk) Jerry Hughes Core Thomson scattering jrwalk,jwhughes,yma
TS - Edge yes Operating with both lasers, density calibration ongoing. Jul 19 2012 10:20:28:323AM (jrwalk) Jerry Hughes Millimeter resolution edge Thomson scattering jrwalk,jwhughes,yma
Vispec no 350 and 670 nm, 4 spatial channels Nov 28 2007 09:58:35:493AM (agraf) Alex Graf Visible Spectrometer agraf
XEUS yes XEUS viewing the 1-6 nm region, spectral brightness vs. lambda and time are being stored in tree. Apr 20 2012 10:43:43:107AM (mlreinke) Matt Reinke X-ray Extended Ultraviolet Spectrometer markchil,mlreinke
XTOMO yes ARRAY1->5 available. Specific channels on various arrays display issues. Apr 20 2012 05:36:28:523PM (faustian) Robert Granetz X-Ray Tomography faustian,granetz,mlreinke

Session Leader Comments
Aug 8 2012 09:09:33:683AM	1120808001	Mark Chilenski	Try for 1.0MA, 2.5MW. CaF2 injections at 0.85s, 1.25s. Result: equilibrium went practically DN. RF ~ 0.7MW, 1.0MA, nL_04 ~ 1.5e20 m^-2
Aug 8 2012 09:21:08:593AM	1120808002	Mark Chilenski	Try for 1.0MA, 2.5MW. CaF2 injections at 0.85s, 1.25s. Result: equilibrium stayed LSN until ~1.640s. RF ~ 1.5MW, 1.0MA, nL_04 ~ 1.5e20 m^-2
Aug 8 2012 09:39:57:147AM	1120808003	Mark Chilenski	Try for 1.0MA, 4MW. CaF2 injections at 0.85s, 1.25s. Result: Got H-mode at ~0.7s, CaF2 injection looks like it knocks it out at 0.85s. RF ~ 1MW, 1.0MA
Aug 8 2012 09:46:52:573AM	1120808004	Mark Chilenski	Try for 1.0MA, 4MW. CaF2 injections at 0.85s, 1.25s. Result: Fizzle.
Aug 8 2012 10:05:27:150AM	1120808005	Mark Chilenski	Try for 1.0MA, 4MW. CaF2 injections at 0.85s, 1.25s. Result: 1.0MA, ~1MW, H-mode from ~0.6s to ~1.3s.
Aug 8 2012 10:12:23:907AM	1120808006	Mark Chilenski	Try for 1.0MA, 4MW. CaF2 injections at 0.85s, 1.25s. Result: Fizzle.
Aug 8 2012 10:32:00:310AM	1120808007	Mark Chilenski	Try for 1.0MA, 4MW. CaF2 injections at 0.85s, 1.25s. Result: 1.0MA, ~3.7MW, H-mode from 0.73s to 1.54s.
Aug 8 2012 10:52:05:070AM	1120808008	Mark Chilenski	Try for 1.0MA, 2.5MW. CaF2 injections at 0.85s, 1.25s. Result: 1.0MA, ~2.5MW, 2 H-modes.
Aug 8 2012 11:03:59:197AM	1120808009	Mark Chilenski	Try for 1.0MA, 2.5MW. CaF2 injections at 0.85s, 1.25s. Result: 1.0MA, ~2.5MW, H-mode from 0.6s to 1.5s.
Aug 8 2012 11:32:21:330AM	1120808010	Mark Chilenski	Try for 1.0MA, 2.5MW, with cryo. CaF2 injections at 0.85s, 1.25s. Result: 1.0MA, ~2.5MW, multiple H-modes.
Aug 8 2012 11:31:38:923AM	1120808011	Mark Chilenski	Try for 1.0MA, 2.5MW, with cryo. CaF2 injections at 1.0, 1.4s. Result: 1.0MA, ~2.5MW, multiple H-modes.
Aug 8 2012 11:48:26:060AM	1120808012	Mark Chilenski	Try for 1.05MA, 2.5MW, with cryo. CaF2 injections at 1.0, 1.4s. Result: 1.05MA, ~2.5MW, multiple H-modes.
Aug 8 2012 12:13:34:560PM	1120808013	Mark Chilenski	Try for 950MA, 4MW, with cryo. CaF2 injections at 1.0, 1.4s. Result: 950MA, 4MW
Aug 8 2012 12:21:19:610PM	1120808014	Mark Chilenski	Try for 950MA, 4MW, with cryo. CaF2 injections at 1.0, 1.4s. Result: 950MA, 4MW, much more steady than before.
Aug 8 2012 12:27:41:257PM	1120808015	Mark Chilenski	Try for locked mode, with cryo. CaF2 injection at 1.45s. Result: Fizzle.
Aug 8 2012 12:41:23:850PM	1120808016	Mark Chilenski	Try for locked mode, with cryo. CaF2 injection at 1.45s. Result: Good locked mode.
Aug 8 2012 12:56:54:823PM	1120808017	Mark Chilenski	Try for 750kA, 2.5MW, with cryo. CaF2 injections at 1.0, 1.4s. Result: Multiple H-modes -- first injection was a bit large and knocks it out of H-mode.
Aug 8 2012 01:16:26:880PM	1120808018	Mark Chilenski	Try for 750kA, 2.5MW, with cryo. CaF2 injections at 1.0, 1.4s.
Aug 8 2012 01:29:33:430PM	1120808019	Mark Chilenski	Try for 750kA, 2.5MW, with cryo. CaF2 injections at 1.0, 1.4s.
Aug 8 2012 01:47:09:967PM	1120808020	Mark Chilenski	Try for 750kA, 4MW, with cryo. CaF2 injections at 1.0, 1.4s. Result: Big Mo injection knocks it out, recovers.
Aug 8 2012 01:54:07:323PM	1120808021	Mark Chilenski	Try for 750kA, 4MW, with cryo. CaF2 injections at 1.0, 1.4s. Result: Shot looks pretty good.
Aug 8 2012 02:02:27:497PM	1120808022	Mark Chilenski	Try for 400kA, 2.5MW, with cryo. CaF2 injections at 1.0, 1.4s.
Aug 8 2012 02:17:07:987PM	1120808023	Mark Chilenski	Try for 400kA, 2.5MW, with cryo. CaF2 injections at 1.0, 1.4s.
Aug 8 2012 02:31:17:993PM	1120808024	Mark Chilenski	Try for 450kA, 2MW (D and E only), with cryo. CaF2 injections at 1.0, 1.2, 1.4s.
Aug 8 2012 02:46:45:427PM	1120808025	Mark Chilenski	Try for 450kA, 1.5MW (D and E only), with cryo. CaF2 injections at 1.0, 1.2, 1.4s.
Aug 8 2012 03:01:01:300PM	1120808026	Mark Chilenski	Try for 450kA, 1.5MW (D and E only), with cryo. CaF2 injections at 1.0, 1.2, 1.4s.
Aug 8 2012 03:14:30:230PM	1120808027	Mark Chilenski	Try for 600kA, 2.5MW, with cryo. CaF2 injections at 1.0, 1.4s.
Aug 8 2012 03:29:16:693PM	1120808028	Mark Chilenski	Try for 600kA, 2.5MW, with cryo. CaF2 injections at 1.0, 1.4s.
Aug 8 2012 03:48:05:450PM	1120808029	Mark Chilenski	Try for 600kA, 2.5MW, with cryo. CaF2 injections at 1.05, 1.45s. Result: fizzle.
Aug 8 2012 04:00:09:370PM	1120808030	Mark Chilenski	Try for 600kA, 2.5MW, with cryo. CaF2 injections at 1.05, 1.45s.
Aug 8 2012 04:12:30:453PM	1120808031	Mark Chilenski	Try for 600kA, 4MW, with cryo. CaF2 injections at 1.05, 1.45s.
Aug 8 2012 04:29:44:807PM	1120808032	Mark Chilenski	Try for 900kA, 3MW, with cryo. CaF2 injections at 1.05, 1.45s.
Aug 8 2012 04:55:06:873PM	1120808033	Mark Chilenski	Try for 600kA, 4MW, with cryo. Add Ne seeding. CaF2 injections at 1.05, 1.45s. Result: 3MW of RF.
Aug 8 2012 05:01:19:830PM	1120808034	Mark Chilenski	Try for 600kA, 4MW, with cryo. Increase Ne seeding. CaF2 injections at 1.05, 1.45s.

Physics Operator Comments
Aug 8 2012 08:50:36:230AM		Robert Granetz	SL has decided that we do not want the cryopump for the 1 MA shots today, which includes the start of the run. So no cryopump for shot 1. Therefore I have reloaded seg 1 with seg 1 from 1120807031 (a good startup from yesterday). PG4 pulse is 18 ms, rather than the 45 ms used in the previously loaded cryopump startup.
Aug 8 2012 09:09:17:637AM	1120808001	Robert Granetz	Shot 01 -- Plasma, full length. 1.0 MA, 5.4 T, 1.0e20 m-2 (target), SNL then DN, Prf=0.65 MW only nl_04=1.5e20 m-2 (too high...boronization recovery?) Next shot: move ZCUR down by 5 mm
Aug 8 2012 09:26:28:793AM	1120808002	Robert Granetz	Shot 02 -- Plasma, full length. 1.0 MA, 5.4 T, 1.3e20 m-2, LSN (close to DN, as desired), Prf=1.4 MW. Density is coming down on its own, but still needs to come down some more. J-port antenna needs some more shots also for boronization recovery. CaF2 injections are at t=0.85 s and 1.25 s. Next shot: increase Ar puff to 50 ms (was 40 ms); increase Prf to 4 MW
Aug 8 2012 09:40:09:557AM	1120808003	Robert Granetz	Shot 03 -- Plasma. 1.0 MA. Disrupted in rampdown due to an injection. Went into H-mode at 0.7 s, but a CaF2 injection at t=0.85 s dropped it out. Prf=1.1 MW, only E-port stayed on. nl_04=1.1e20 m-2 (target). Next shot: no DPCS changes; repeat for RF conditioning; smaller CaF2 injection
Aug 8 2012 09:50:54:807AM	1120808004	Robert Granetz	Shot 04 -- Fizzle Next shot: add -10 amps to IC_EF4; reduce pre-fill by 1 ms
Aug 8 2012 10:09:32:637AM	1120808005	Robert Granetz	Shot 05 -- Plasma, full length. 1.0 MA, 5.4 T, 1.1e20 m-2, H-mode, Prf=2.0 MW. The ICRF still needs more tuning/conditioning. Next shot: repeat, no DPCS changes
Aug 8 2012 10:18:21:910AM	1120808006	Robert Granetz	Shot 06 -- Fizzle Next shot: reduce early PG3 gas programming
Aug 8 2012 10:30:56:630AM	1120808007	Robert Granetz	Shot 07 -- Plasma, full length. 1.0 MA, 5.4 T, 1.1e20 m-2, LSN (nearly DN), Prf=3.7 MW, LBO w/CaF2. Next shot: reduce Prf to 2.5 MW
Aug 8 2012 10:45:33:523AM	1120808008	Robert Granetz	Shot 08 -- Plasma, full length. 1.0 MA, 5.4 T, 1.1e20 m-2, LSN (nearly DN), Prf=2.5 MW, LBO w/CaF2. Next shot: add -10 A to IC_EF4 (to -1310 A)
Aug 8 2012 10:58:29:537AM	1120808008	Robert Granetz	Shot 09 -- Plasma, full length. 1.0 MA, 5.4 T, 1.1e20 m-2, LSN (nearly DN), Prf=2.5 MW, LBO w/CaF2. Next shot: no DPCS changes
Aug 8 2012 11:09:05:230AM	1120808009	Robert Granetz	Shot 09 -- Plasma, full length. 1.0 MA, 5.4 T, 1.1e20 m-2, LSN (nearly DN), Prf=2.5 MW, LBO w/CaF2. Terrible startup...pre-fill pressure was way too low, even though the programmed pulse was correct (17 ms). Cryopump was cooling down in preparation for shot 10, and it looks like it actually started pumping on this shot. Next shot: cryopump; set pre-fill pulse to 45 ms (was 17 ms)
Aug 8 2012 11:18:26:697AM	1120808010	Robert Granetz	Shot 10 -- Plasma, full length. 1.0 MA, 5.4 T, 1.1e20 m-2, LSN (nearly DN), Prf=2.5 MW, LBO w/CaF2. Cryopump startup. Next shot: reduce Ar puff back to 40 ms
Aug 8 2012 11:34:10:950AM	1120808011	Robert Granetz	Shot 11 -- Plasma, full length. 1.0 MA, 5.4 T, 1.1e20 m-2, LSN (nearly DN), Prf=2.5 MW, LBO w/CaF2. Cryopump startup. Next shot: increase Ip to 1.05 MA
Aug 8 2012 11:51:28:553AM	1120808012	Robert Granetz	Shot 12 -- Plasma, full length. 1.05 MA, 5.4 T, 1.1e20 m-2, LSN (nearly DN), Prf=2.5 MW, LBO w/CaF2. Cryopump startup. Next shot: decrease Ip to 0.95 MA; increase nl_04 to 1.15e20 m-2; Prf will be 4 MW
Aug 8 2012 12:10:47:243PM	1120808013	Robert Granetz	Shot 13 -- Plasma, full length. 0.95 MA, 5.4 T, 1.15e20 m-2, LSN (nearly DN), Prf=4.0 MW, LBO w/CaF2. Cryopump startup. Next shot: no changes
Aug 8 2012 12:23:00:230PM	1120808014	Robert Granetz	Shot 14 -- Plasma, full length. 0.95 MA, 5.4 T, 1.15e20 m-2, LSN (nearly DN), Prf=4.0 MW, LBO w/CaF2. Cryopump startup. Long steady EDA H-mode. Next shot: locked mode calibration shot...turn off seg 2, turn on seg 4; set Ar pulse in seg 4 to be 100 volts for 200 ms, starting at t=0.4 s; no ICRF
Aug 8 2012 12:28:53:030PM	1120808015	Robert Granetz	Shot 15 -- Fizzle. Looks like cryopump didn't stay cold. Next shot: repeat this locked mode calibration shot; cryopump will be run manually
Aug 8 2012 12:58:27:600PM	1120808016	Robert Granetz	Shot 16 -- Plasma, locked mode calibration shot. Locks at t=0.65 s. Next shot: continue with run from shot 14, but decrease Ip to 0.75 MA and nl_04 to 0.85e20 m-2; turn ICRF back on
Aug 8 2012 12:58:06:113PM	1120808017	Robert Granetz	Shot 17 -- Plasma, full length. 0.77 MA, 5.4 T, 0.90e20 m-2, LSN, Prf=2.5 MW, LBO w/CaF2. Cryopump startup. CaF2 at 1.0 s causes H-L back-transition Next shot: repeat; less CaF2
Aug 8 2012 01:15:06:797PM	1120808018	Robert Granetz	Shot 18 -- Plasma, full length. 0.77 MA, 5.4 T, 0.90e20 m-2, LSN, Prf=2.5 MW, LBO w/CaF2. Cryopump startup. Next shot: repeat
Aug 8 2012 01:29:17:413PM	1120808019	Robert Granetz	Shot 19 -- Plasma, full length. 0.77 MA, 5.4 T, 0.90e20 m-2, LSN, Prf=2.5 MW, LBO w/CaF2. Cryopump startup. Next shot: no DPCS changes; increase Prf to 4 MW
Aug 8 2012 01:43:31:723PM	1120808020	Robert Granetz	Shot 20 -- Plasma, full length. 0.77 MA, 5.4 T, 0.90e20 m-2, LSN, Prf=4.0 MW, LBO w/CaF2. Cryopump startup. Big moly injection at t=1.15 s Next shot: repeat
Aug 8 2012 01:54:13:337PM	1120808021	Robert Granetz	Shot 21 -- Plasma, full length. 0.77 MA, 5.4 T, 0.90e20 m-2, LSN, Prf=4.0 MW, LBO w/CaF2. Cryopump startup. Next shot: Ip=0.40 MA, nl_04=0.5e20 m-2, 2.5 MW; decrease Ar pulse to 33 ms
Aug 8 2012 02:36:54:237PM	1120808022	Robert Granetz	Shot 22 -- Plasma, full length. 0.43 MA, 5.4 T, 0.53e20 m-2, LSN, Prf=2.7 MW, LBO w/CaF2. Cryopump startup. RF had some faulting problems Next shot: add -5 A to IC_EF4, otherwise repeat
Aug 8 2012 02:36:40:590PM	1120808023	Robert Granetz	Shot 23 -- Plasma, full length. 0.43 MA, 5.4 T, 0.53e20 m-2, LSN, Prf=2.7 MW, LBO w/CaF2. Cryopump startup. J-port RF had some faulting problems. Some heating of GH limiter. Next shot: set Ip to 0.45 MA; use D & E antennas only; increase Ar pulse to 50 ms
Aug 8 2012 02:46:13:413PM	1120808024	Robert Granetz	Shot 24 -- Plasma, full length. 0.48 MA, 5.4 T, 0.54e20 m-2, LSN, Prf=2.0 MW, LBO w/CaF2. Cryopump startup. Some heating of GH limiter. Next shot: repeat, reduce Prf to 1.5 MW
Aug 8 2012 02:55:32:943PM	1120808025	Robert Granetz	Shot 25 -- Plasma, full length. 0.48 MA, 5.4 T, 0.54e20 m-2, LSN, Prf=1.5 MW, LBO w/CaF2. Cryopump startup. Much less heating of GH limiter. Next shot: repeat
Aug 8 2012 03:11:38:127PM	1120808026	Robert Granetz	Shot 26 -- Plasma, full length. 0.48 MA, 5.4 T, 0.54e20 m-2, LSN, Prf=1.5 MW, LBO w/CaF2. Cryopump startup. Next shot: add +5 A to IC_EF4; Ip to 0.6 MA, nl_04 to 0.7e20 m-2, Prf to 2.5 MW
Aug 8 2012 03:22:41:130PM	1120808027	Robert Granetz	Shot 27 -- Plasma, full length. 0.62 MA, 5.4 T, 0.75e20 m-2, LSN, Prf=2.5 MW, LBO w/CaF2. Cryopump startup. Next shot: repeat
Aug 8 2012 03:32:45:620PM	1120808028	Robert Granetz	Shot 28 -- Plasma, full length. 0.62 MA, 5.4 T, 0.75e20 m-2, LSN, Prf=2.5 MW, LBO w/CaF2. Cryopump startup. Next shot: add +5 A to IC_EF4
Aug 8 2012 03:49:46:113PM	1120808029	Robert Granetz	Shot 29 -- Fizzle due to cryopump failing to stay cold. Next shot: try again
Aug 8 2012 04:04:24:067PM	1120808030	Robert Granetz	Shot 30 -- Plasma, full length. 0.62 MA, 5.4 T, 0.75e20 m-2, LSN, Prf=2.5 MW, LBO w/CaF2. Cryopump startup. Next shot: no DPCS changes; set Prf to 4 MW
Aug 8 2012 04:26:48:210PM	1120808031	Robert Granetz	Shot 31 -- Plasma, full length. 0.62 MA, 5.4 T, 0.75e20 m-2, LSN (nearly DN), Prf=4.0 MW, LBO w/CaF2. Cryopump startup. Next shot: Ip to 0.9 MA, nl_04 to 1.0e20 m-2, Prf to 3 MW
Aug 8 2012 04:59:07:607PM	1120808032	Robert Granetz	Shot 32 -- Plasma, full length. 0.90 MA, 5.4 T, 1.0e20 m-2, LSN (nearly DN), Prf=2.9 MW, LBO w/CaF2. Cryopump startup. Next shot: turn on neon puff at 30 volts from t=0.4 to 0.6 s
Aug 8 2012 04:55:46:750PM	1120808033	Robert Granetz	Shot 33 -- Plasma, full length. 0.62 MA, 5.4 T, 0.75e20 m-2, LSN (nearly DN), Prf=2.9 MW, LBO w/CaF2. Cryopump startup. Next shot: increase neon pulse amplitude to 40 volts; Prf to 4 MW
Aug 8 2012 05:02:19:540PM	1120808034	Robert Granetz	Shot 34 -- Plasma, full length. 0.62 MA, 5.4 T, 0.75e20 m-2, LSN (nearly DN), Prf=4 MW, LBO w/CaF2. Cryopump startup. End of run

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	09:01:33:780AM	Plasma	Ok
2	09:15:48:593AM	Plasma	Ok
3	09:31:55:357AM	Plasma	Ok
4	09:44:25:143AM	Plasma	Ok
5	09:57:00:740AM	Plasma	Ok
6	10:09:52:397AM	Plasma	Ok
7	10:22:19:477AM	Plasma	Ok
8	10:35:22:110AM	Plasma	Ok
9	10:59:01:627AM	Plasma	Ok
10	11:12:44:787AM	Plasma	Ok
11	11:25:32:747AM	Plasma	Ok
12	11:43:37:547AM	Plasma	Ok
13	11:58:47:140AM	Plasma	Ok
14	12:11:15:210PM	Plasma	Ok
15	12:24:33:383PM	Plasma	Ok
16	12:37:43:600PM	Plasma	Ok
17	12:50:37:893PM	Plasma	Ok
18	01:07:08:160PM	Plasma	Ok
19	01:21:58:350PM	Plasma	Ok
20	01:34:25:700PM	Plasma	Ok
21	01:47:11:370PM	Plasma	Ok
22	02:00:30:803PM	Plasma	Ok
23	02:14:01:260PM	Plasma	Ok
24	02:29:01:357PM	Plasma	Ok
25	02:46:52:947PM	Plasma	Ok
26	02:59:55:113PM	Plasma	Ok
27	03:13:03:153PM	Plasma	Ok
28	03:27:21:440PM	Plasma	Ok
29	03:45:38:713PM	Plasma	Ok
30	03:58:13:410PM	Plasma	Ok
31	04:10:37:540PM	Plasma	Ok
32	04:27:14:513PM	Plasma	Ok
33	04:46:25:823PM	Plasma	Ok
34	04:59:10:507PM	Plasma	Ok