| Miniproposals | ||||||||||
|
| Operators | |
| Session leader(s): | Matt Reinke |
| Physics operator(s): | Robert Granetz |
| Engineering operator(s): | Andy Pfeiffer,Gary Dekow,Ed Fitzgerald |
| Engineering Operator Run Comment |
| MP 701: Impact of low-Z impurity concentration on core and pedestal tran |
| Session Leader Plans |
| Entered: Jul 24 2012 02:42:47:557PM |
| Author: Matt Reinke |
| SL Plan for 7/25/12
MP 701: Impact of low-Z impurity concentration on core and pedestal transport in EDA H-modes SL: M.L. Reinke PO: R. Granetz OVERVIEW ==================================== The purpose of this run is to study the core and pedestal transport in more detail in plasmas similar to those run under MP 564 (1090922, 1091019, 1110903) where impurity seeding helped to enable high performance, H98 > 1.0, and high fusion reactivity (i.e. neutron rate). This will be a diagnostic-heavy run. We will start with target plasma 1101215012 (5.4 T, 900 kA, nl04=0.9), reduce Ip to 800 kA and adjust the inner/outer strikepoint locations. Run will go from 9:00 - 6:00 pm with the 5:00-6:00 pm being used as contingency in case of delay during the day. "Golden hour" authorization will come from S. Wolfe based on accounting during the day. ***CAUTION*** While not a central focus of MP 701, neutron production in similar seeded H-mode runs have lead to neutron alerts early in the run day and elevated radiation levels in the cell following the run. Please pay attention for alerts from C. Fiore. Magnetic equilibrium will likely be fixed early in the day and most of the day used to scan gas and aux. power input, so instruments with adjustable views should be fixed early. ***CAUTION*** GAS SETUP ===================================== 4 psi Ne in B-SIDE LOWER 2 psi Ar in H-BOTTOM 10 psi He in NINJA Plenum AUX. SYS. ===================================== ICRF up to 5 MW (required) DNB (desired) Laser blow-off w/ Al (desired) LHRF up to 500 kW,n||=1.9 (desired) DIAGNOSTICS ===================================== REQUIRED: Thomson (core+edge), TCI, GPC (5.4 Tesla), HIREXSR (He & H-like), impurity spectroscopy (XEUS, LoWEUS), bolometry, XTOMO (core+edge), He-based GPI diodes for fluctuations (A/B), PCI, magnetics, D2-based GPI for CXRS (G/H). CHROMEX @ 525 nm w/ CXRS views. LLNL1 camera w/ D-beta filter, midplane GPI camera with D-beta filter, BPLY DESIRED: DNB-based CXRS (B & Ne), emissive probe, divertor heat flux, CECE CHROMEX setup: 550 nm, 3 IW_POL #(1,4,7), 5 POL_BCK #(1,4,7,10,13), 4 K_TOP (8,10,12,14) and 4 K_BOT (5,6,7,8). RUN PLAN ===================================== Parts A-E of the MP will be explored during this run day, featuring ONLY neon seeding. [A] post-BZN recovery (~10 shots). We are looking to not only condition up the ICRF and adjust diagnostics but also reduce the neutral pressure. The exact level is not critical, just so it asymtotes and isn't a variable during parts [C] & [D]. 1) establish target plasma (1101215012 w/ Ip lowered to 800 kA) w/ Ne at 50% from 0.4-0.6 seconds and ICRF power at 3.5 MW. Ar from 0.3-0.35 at 50%. [No NINJAs, no LHRF, no LBO]. ICRF pulse from 0.6-1.5 seconds w/ D+E used in rampdown as necessary. 2) add perturbing diagnostics - NINJAs hit at 1.4 seconds, LBO hits at 1.3 seconds 3) investigate use of LH to modify the edge, 300 kW from 1.0-1.4 seconds. [B] HIREXSR locked mode calibration (~1-2 shots) Load 1120626029 which uses H-BOT for argon [C] scan Ne fraction at fixed nl04 and P_NET and no LHRF (~10 shots) 1) Ne puff 0.4-0.6 @ 30%, ICRF scan from 3.0-3.5 MW 2) Ne puff 0.4-0.6 @ 75%, ICRF scan from 4.0-4.5 MW 3) Ne puff 0.4-0.6 @ 50%, ICRF scan from 3.5-4.0 MW 4) Ne puff 0.4-0.6, 0.9-0.95, 1.1-1.15 @ 75% ICRF scan from 4.5-5.0 MW 5) (optional) chose best from C1-C4 and run with max P_ICRF [D] at fixed Ne fraction, scan a neutral density puff during the flattop. (~10 shots) Use the G-MID-OUT (LFS near G/H limiter) NINJA puff so as not to perturb the B-port neutral density measurements. Choose best reproducible shot from C1-C4. Times for NINJA puff are when the gas should hit the plasma. Gas pressure adjusted shot-to-shot to vary the fueling rate. 1) t=1.0, 300 ms @ 10 psi 2) t=1.0, 300 ms @ 20 psi 3) t=1.0, 300 ms @ 30 psi 4) t=1.0, 300 ms @ 40 psi 5) (optional) if LHRF shows interesting results in [A] then add LHRF into choice of D1-D4 6) (optional) if time repeat cases of D1-D4 using B-MID-IN (inner wall @ B-PORT). [E] locked mode calibration |
| Physics Operators Plans |
| Entered: Jul 24 2012 05:26:05:470PM |
| Author: Robert Granetz |
Engineering setup for Wednesday 2012/07/25
MP701 - Impact of low-Z impurity concentration on core and pedestal
transport in EDA H-modes
Session leader: M. Reinke
Physics operator: R. Granetz
Overnight boronization, using the same parameters as on 1120706, with
standard post-boronization ECDC (2 hrs in He)
Run will start at 9:00 and possibly go to 18:00, with 17:00-18:00 being
used as contingency in case of delay during the day. Authorization will
come from Steve Wolfe based on accounting during the day.
Power systems as on: 1101215012 (0.8 MA, 5.4 T, 0.8e20 m-2 target, LSN)
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 4 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 2 psi Ar Hybrid DISABLED (PG5)
leave B-div as is Hybrid DISABLED (PG6)
leave H-div as is Hybrid DISABLED (PG7)
fill NINJA with 10 psi He 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 diagnostics: Thomson (core+edge), TCI, GPC (5.4 Tesla), HIREXSR
(He & H-like), impurity spectroscopy (XEUS, LoWEUS), bolometry, XTOMO
(core+edge), He-based GPI diodes for fluctuations (A/B), PCI, magnetics,
D2-based GPI for CXRS (G/H). CHROMEX @ 525 nm w/ CXRS views. LLNL1
camera w/ D-beta filter, midplane GPI camera with D-beta filter, BPLY
Desired: DNB-based CXRS (B & Ne), emissive probe, divertor heat flux, CECE
CHROMEX setup: 550 nm, 3 IW_POL #(1,4,7), 5 POL_BCK #(1,4,7,10,13), 4 K_TOP
(8,10,12,14) and 4 K_BOT (5,6,7,8).
------------------------------------------------------------------------------
Boronization overnight: yes, see above
ICRF: yes, up to 5 MW
LH: desired, up to 500 kW, n//=1.9
Impurity injector: desired, with aluminum
DNB: desired
Cryopump: no
------------------------------------------------------------------------------
Run plan:
Parts A-E of the MP will be explored during this run day, featuring ONLY
neon seeding.
[A] post-BZN recovery (~10 shots). We are looking to not only condition up
the ICRF and adjust diagnostics but also reduce the neutral pressure.
The exact level is not critical, just so it asymtotes and isn't a variable
during parts [C] & [D].
1) establish target plasma (1101215012) w/ Ne at 50% from 0.4-0.6 seconds
and ICRF power at 3.5 MW. Ar from 0.3-0.35 at 50%. [No NINJAs, no LHRF, no
LBO]. ICRF pulse from 0.6-1.5 seconds w/ D+E used in rampdown as necessary.
2) add perturbing diagnostics - NINJAs hit at 1.4 seconds, LBO hits at 1.3
seconds
3) investigate use of LH to modify the edge, 300 kW from 1.0-1.4 seconds.
[B] HIREXSR locked mode calibration (~1-2 shots)
Load 1120626029 which uses H-BOT for argon
[C] scan Ne fraction at fixed nl04 and P_NET and no LHRF (~10 shots)
1) Ne puff 0.4-0.6 @ 30%, ICRF scan from 3.0-3.5 MW
2) Ne puff 0.4-0.6 @ 75%, ICRF scan from 4.0-4.5 MW
3) Ne puff 0.4-0.6 @ 50%, ICRF scan from 3.5-4.0 MW
4) Ne puff 0.4-0.6, 0.9-0.95, 1.1-1.15 @ 75% ICRF scan from 4.5-5.0 MW
5) (optional) chose best from C1-C4 and run with max P_ICRF
[D] at fixed Ne fraction, scan a neutral density puff during the
flattop. (~10 shots)
Use the G-MID-OUT (LFS near G/H limiter) NINJA puff so as not to perturb
the B-port neutral density measurements. Choose best reproducible shot from
C1-C4. Times for NINJA puff are when the gas should hit the plasma. Gas
pressure adjusted shot-to-shot to vary the fueling rate.
1) t=1.0, 300 ms @ 10 psi
2) t=1.0, 300 ms @ 20 psi
3) t=1.0, 300 ms @ 30 psi
4) t=1.0, 300 ms @ 40 psi
5) (optional) if LHRF shows interesting results in [A] then add LHRF into
choice of D1-D4
6) (optional) if time repeat cases of D1-D4 using B-MID-IN (inner wall @
B-PORT).
[E] locked mode calibration
|
| Session Leader Summaries |
| Entered: Jul 25 2012 07:03:23:023PM |
| Author: Matt Reinke |
| SL_SUMMARY FOR 112075 - MP 701
We had a really successful run today, running through 29 plasmas w/o any fizzles/duds or and only one early disruption1 (001). We had a full-length EDA H-mode by shot 003 and all shots were FULL of diagnostics. Thanks to everyone who spent the day in the control room keeping the data flowing. SHOTS: 003-012 PART [A] w/ 011 a locked mode [B] SHOTS: 013-023 PART [C] SHOTS: 024-029 PART [D] We kept pace with the SL_PLAN but the boronization had degraded too much to get plasmas steady enough to accomplish [D]. We should have some data from the natural neutral pressure scan in part [A]. The LHRF into EDA H-modes we tried in [A] was amazingly successful. The density drop and temperature rise was clearly demonstrated and increased with PRF, with some indication of saturation between 600-700 kW, but we didn't really investigate that thoroughly. Shots 005-007 are a really nice PLH scan in fixed EDA H-mode. For shot 012 we moved the NINJA into the LH pulse and Jim Terry found that the edge turbulence demonstrated a remarkable change promptly with the application of LHRF. This will require a lot of investigation, but I think we have a good amount of data. For part [C] we were able to scan the Ne seeding over a factor of 2, going from H/L back-transitions due to Ne when it was too high and H/L transition due to Mo being too high. 013,014 and 016 have steady portions while 015 and 018 have too much Ne and Mo respectively with P_ICRF from 4.0-4.5 MW. 019,021 and 022 are a similar Ne scan at slightly higher P_ICRF ~ 4.5-5.0 MW. These should be good to look at transport changes with Ne fraction. My only worry is that these are at marginal H_98 ~ 0.8 so we might not be accessing the "elevated" confinement regime we identified The last few shots we tried to study the neutral density effects, but except for 026 there wasn't really a steady shot to add NINJA + LHRF. I think this would be a worthwhile microproposal for a few shots in a more well boronized machine. There's a GOBS and GOBS of data from this run we got through a good chunk of the SL_PLAN. To be continued after Oct. 1st, hopefully. |
| Physics Operator Summaries |
| Entered: Jul 25 2012 05:00:10:990PM |
| Author: Robert Granetz |
Run summary for Wednesday 2012/07/25
MP701 - Impact of low-Z impurity concentration on core and pedestal
transport in EDA H-modes
Session leader: M. Reinke
Physics operator: R. Granetz
The goals of today's run were to have EDA H-modes with lots of neon and
argon puffing, with 3.5-4 MW of ICRF, some LH occasionally, and many
impurity diagnostics taking data. We were very successful at meeting these
goals. Recover from last night's boronization was a non-issue. The ICRF
and LH both ran well. We also had laser blowoff of aluminum, as well as
NINJA puffing of D2 and He. There were no significant problems with power
supplies, computers, or the tokamak.
Scorecard: 29 plasmas
0 duds
0 fizzles
0 power supply tests
0 no-power MDSplus cycle tests
0 no-power gas test
--------------
Total: 29 shot cycles
|
| Session Leader Comments | |||
| Jul 25 2012 09:10:57:930AM | 1120725001 | Matt Reinke | Load target plasma (1101215012 - lowering Ip to 800 kA and tweaking x-point) and demonstrate seeded EDA H-mode.
Steady ICRF ~ 3.5 MW. [no NINJAs, LBO in rampdown]. RESULT: early disruption, see Ti in the plasma and a blast from J-ANT faraday screen NEXT: repeat |
| Jul 25 2012 09:30:25:417AM | 1120725002 | Matt Reinke | repeating target plasma, looking for first H-mode before adding the piggies
RESULT: few H-modes w/ ratty ICRF but probably a bit too much PRAD. Still getting some blasts from J-ANT. Jim says the IR camera is happy. NEXT: turning down the Neon, putting D+E in the ramp down and making adjustment for TS pedestal profiles. |
| Jul 25 2012 09:43:35:757AM | 1120725003 | Matt Reinke | repeating target plasma, almost there. Less Ne (40% from 50%), ICRF in the rampdown and (see PO entry) adjustment to the LCFS to optimze Thomson pedestal coverage.
RESULT: Good steady EDA H-mode! Mo injections early in H-mode elevate PRAD. H-alpha and neutral pressure evolves over the shot NEXT: repeat with added diagnostics |
| Jul 25 2012 09:54:03:120AM | 1120725004 | Matt Reinke | repeat H-mode target but Send in the Clowns! Add some extra diagnostics.
1) NINJA hits at 1.4 2) LBO at 1.3 3) Shoelace ANT after 1.0 seconds RESULT: excellent repeat! Don't see anything too perturbing from any of the above NEXT: repeat target, but add LHRF (1.0-1.25) |
| Jul 25 2012 10:13:21:473AM | 1120725005 | Matt Reinke | repeating target, trying to bring down the neutral pressure, but adding LHRF into the steady EDA H-mode from 1.0-1.25, Greg says ~200 kW.
RESULT: another great EDA H-mode, but neutral fueling is still high NEXT: repeat target with high LHRF power |
| Jul 25 2012 10:30:31:893AM | 1120725006 | Matt Reinke | repeat target EDA H-mode, increasing the PLH to ~ 500 kW
RESULT: great shot, effect from LH increased with power NEXT: repeat with another increase in PLH |
| Jul 25 2012 10:40:53:260AM | 1120725007 | Matt Reinke | repeat target EDA increasing PLH to ~650 kW
RESULT: the increased lower hybrid power let to an increase in temperature and decreased density. LH getting a hotspot which limits Power and length NEXT: increase outer gap by 3 mm per LH request. Increase PLH. |
| Jul 25 2012 10:59:20:630AM | 1120725008 | Matt Reinke | repeat EDA target with increased PLH and a slightly larger outer gap to preven LH overheating
RESULT: looks like we're near saturating the LHRF effect, argon & PRAD is creeping up and target nl04 is probably a bit high. Getting an increase in PRAD from Mo during the pulse NEXT: reduce nl04 demand from 1.0 to 0.95, reduce Ar puff from 50 ms to 40 ms. Increase LH time to be from 0.9-1.25 |
| Jul 25 2012 11:14:39:780AM | 1120725008 | Matt Reinke | slightly lower nl04 and argon, increase LH pulse length. neutral pressure still coming down
RESULT: the LH effect reaches steady state, argon drops NEXT: increase PLH from 1.0-1.35, move NINJAs to hit inside the LH pulse |
| Jul 25 2012 11:38:55:227AM | 1120725010 | Matt Reinke | increase the length of time of the LH pulse and put NINJA to hit at 1.2
RESULT: got a Mo injection during the H-mode which dropped it back to L-mode NEXT: do locked mode |
| Jul 25 2012 11:54:56:987AM | 1120725011 | Matt Reinke | run locked mode for HIREXSR
RESULT: great locked mode NEXT: repeat 010 with adjusted diagnostic coverage |
| Jul 25 2012 12:13:18:153PM | 1120725012 | Matt Reinke | back to 010, the EDA target. Earlier, the GPI was seeing very interesting changes in the edge turbulence so we've want to repeat 010 w/o injection and get the GPI cameras w/ He filters.
RESULT: some LH trips, but the GPI got their data NEXT: start part [C], the Ne concentration scan |
| Jul 25 2012 12:31:53:173PM | 1120725013 | Matt Reinke | starting the Ne concentration scan, increased Ar slightly to get better HIREXSR. Keeping Ne at 40% right now, increasing RF power to scan from 4.0-4.5 MW.
RESULT: rf trip later in shot, but good flattop up till 1.2. PNET is a little low, some of it is Ar. NEXT: decrease Ne, Ar and target nl04 |
| Jul 25 2012 12:46:35:297PM | 1120725014 | Matt Reinke | some tweaks to target: reduce Ne to 35 V, argon to 45 ms, nl04 target to 0.9
RESULT: great shot. Ar dropped, Ne dropped but Mo came up so PRAD is ~same as 012. NEXT: Increase Ne to 50% |
| Jul 25 2012 12:59:36:630PM | 1120725015 | Matt Reinke | increasing Ne to 50%
RESULT: too much Ne, getting H/L back-transitions - 45% would probably do it, but lets make a big step down to see where we are in the Ne+Mo=PRAD NEXT: drop to 25% on the Ne |
| Jul 25 2012 01:23:26:067PM | 1120725015 | Matt Reinke | repeat target shot with Ne at 25%
RESULT: lower Ne and higher Mo NEXT: raise Ne to 45% |
| Jul 25 2012 01:35:03:817PM | 1120725017 | Matt Reinke | increasing Ne to 45%
RESULT: again, too much Ne and getting H/L transitions NEXT: reduce Ar and Ne and repeat |
| Jul 25 2012 01:59:20:207PM | 1120725018 | Matt Reinke | decreasing Ne to 20% and decrease Ar to 60%
RESULT: unhappy early with injection that went to a MARFE, but also had some H/L transitions that look Mo induced NEXT: increase Ne back to 45% and increase PRF to 4.5-5.0 MW |
| Jul 25 2012 02:16:27:060PM | 1120725019 | Matt Reinke | Ar back down to 50 and Ne up to 45%, increase ICRF power to get some more PNET, help stay in H-mode.
RESULT: good 1st half of the shot, some RF trip out NEXT: reduce Ne to 35% |
| Jul 25 2012 02:29:36:357PM | 1120725020 | Matt Reinke | reducing Ne to 35%
RESULT: J-ANT matching was off, a rare mistake from Yijun NEXT: repeat with a little bit more Ar for HIREXSR |
| Jul 25 2012 02:52:39:030PM | 1120725021 | Matt Reinke | repeat w/ better RF and Ar at 60%
RESULT: very nice steady H-mode, Ne down from 019 NEXT: drop Ne down to 25% |
| Jul 25 2012 03:10:24:300PM | 1120725022 | Matt Reinke | lowering the Ne puff to 25%, this might be the last shot in [C]
RESULT: good single H-mode but there is time variation NEXT: increase Ne, decrease Ar slightly |
| Jul 25 2012 03:24:39:987PM | 1120725023 | Matt Reinke | increase Ne to 50%
RESULT: Ne too high, good scan at 4.5-5.0 MW NEXT: moving to part [D] |
| Jul 25 2012 03:45:44:883PM | 1120725024 | Matt Reinke | changing over to [D]. Going to put 200 ms @ 10 psi NINJA from (hitting) at 0.95 seconds. LH @ 600 kW from 1.1-1.4 seconds. Ne at 40%
RESULT: got an ELMfree-ish H-mode initially w/ lots of Mo but there was an injection right across the transition...blame that NEXT: repeat with some diagnostic changes |
| Jul 25 2012 03:57:32:483PM | 1120725025 | Matt Reinke | removed LBO, set He NINJA to hit at 1.3 seconds. QCM turns on at 1.2 seconds
RESULT: still had the inital radiative collapse which is messing with the pacing of this flattop NEXT: increase target nl04 and Ne puff |
| Jul 25 2012 04:14:46:890PM | 1120725026 | Matt Reinke | need to try and get rid of the first H/L back transition. Increasing target nl04 from 0.9-1.0 and Ne to 45%.
RESULT: got the single H-mode back, NINJA shows an effect which is "reversed" by the LHRF NEXT: increase NINJA pressure |
| Jul 25 2012 04:31:18:360PM | 1120725027 | Matt Reinke | increasing NINJA pressure to 20 psi, still at 200 ms length.
RESULT: got the early H/L back, RF trips early droped Te and it never really recovered. NEXT: repeat w/ some RF tweaks |
| Jul 25 2012 04:51:02:850PM | 1120725027 | Matt Reinke | RF trying to get a better match, trying to get single EDA that we can puff NINJA into and apply LHRF.
RESULT: still ugly NEXT: remove Ar, reduce Ne and shorten NINJA puff |
| Jul 25 2012 05:00:30:037PM | 1120725029 | Matt Reinke | reduce Ne to 40%, reduce NINJA pulse to 150 ms, remove Ar puff
RESULT: almost made it, got steady but losses of J led to a H/L transition NEXT: end of run |
| Physics Operator Comments | |||
| Jul 24 2012 04:41:44:463PM | Robert Granetz | Load seg 1 from seg 1 of 1120720001 (recent 5.4 T startup with cryopump). Load seg 2 from seg 2 of 1101215012 ""Call"" all magnetics-based estimators Confirm that dpcs_fizzle source is shot 1090731017 Decrease Ip to 0.8 MA Change RXL programming: add +1.5 cm to raise outer strikepoint Change Ar puff from H-bottom to 50 ms at 50% Load seg 4 from seg 4 of 1120626029 (recent locked mode shot) | |
| Jul 24 2012 04:39:21:793PM | 1120725001 | Robert Granetz |
Shot 01 -- setup: enable B-side-lower (Ne, 4 psi)
enable H-bottom (Ar, 2 psi)
no NINJA
no LBO
no LH
|
| Jul 25 2012 09:10:08:917AM | 1120725001 | Robert Granetz |
Shot 01 -- Plasma, disrupted at t=0.7 s. Prad was increasing dramatically as the ICRF from
J-port was coming up. This post-boronization breakdown and startup was okay.
Next shot: reduce pre-fill by 3 ms for disruption recovery.
|
| Jul 25 2012 09:29:14:197AM | 1120725001 | Robert Granetz | Shot 01 -- laser blowoff will be on for the first shot, firing aluminum at t=1.6 s |
| Jul 25 2012 09:28:00:413AM | 1120725002 | Robert Granetz |
Shot 02 -- Plasma, pretty good shot; disrupted in rampdown. 0.8 MA, 5.4 T, about 1e20 m-2, LSN.
ICRF E & J had 1 MW each, but D faulted a lot.
Next shot: start TF at t=-1.1 s (PLC had been set at -1.0 s); ICRF power will be extended into rampdown;
decrease neon pulse amplitude to 40% (from 50%); increase ZCUR by 0.5 cm
|
| Jul 25 2012 09:38:49:043AM | 1120725003 | Robert Granetz |
Shot 03 -- Plasma, good shot, disrupted in rampdown. Prf = 3.5 MW from D,E,J.
Long EDA H-mode with lots of radiated power due to Ar and Ne injection, which
is exactly what this run is about. LBO fired Al at t=1.6 s.
Next shot: no DPCS changes
|
| Jul 25 2012 09:53:25:177AM | 1120725004 | Robert Granetz |
Shot 04 -- Plasma, good shot. 0.8 MA, 5.4 T, 1e20 m-2 (target), LSN, 3.5 MW ICRF,
neon puffing, steady EDA H-mode, LBO (Al)
Next shot: no DPCS changes; enable LH t=1.00-1.25 s
|
| Jul 25 2012 10:11:10:300AM | 1120725005 | Robert Granetz |
Shot 05 -- Plasma, good shot. 0.8 MA, 5.4 T, 1e20 m-2 (target), LSN, ICRF 3.5 MW, LH 0.3 MW,
neon puffing, steady EDA H-mode, LBO (Al), NINJA puffing (He & D2)
Next shot: no DPCS changes
|
| Jul 25 2012 10:20:43:300AM | 1120725006 | Robert Granetz |
Shot 06 -- Plasma, good shot. 0.8 MA, 5.4 T, 1e20 m-2 (target), LSN, ICRF 3.5 MW, LH 0.5 MW,
neon puffing, steady EDA H-mode, LBO (Al), NINJA puffing (He & D2)
Next shot: no DPCS changes
|
| Jul 25 2012 10:40:52:707AM | 1120725007 | Robert Granetz |
Shot 07 -- Plasma, good shot. 0.8 MA, 5.4 T, 1e20 m-2 (target), LSN, ICRF 3.5 MW, LH 0.5 MW,
neon puffing, steady EDA H-mode, LBO (Al), NINJA puffing (He & D2)
Next shot: increase outer gap by 3 mm at Greg's request (move RCUR in by 1.5 mm)
|
| Jul 25 2012 10:55:48:827AM | 1120725008 | Robert Granetz |
Shot 08 -- Plasma, good shot. 0.8 MA, 5.4 T, 1e20 m-2 (target), LSN, ICRF 3.5 MW, LH 0.67 MW,
neon puffing, steady EDA H-mode, LBO (Al), NINJA puffing (He & D2)
Next shot: shorten Ar puff to 40 ms (was 50 ms); decrease nl_04 to 0.95e20 m-2;
increase LH pulse duration
|
| Jul 25 2012 11:09:15:427AM | 1120725009 | Robert Granetz |
Shot 09 -- Plasma, good shot. 0.8 MA, 5.4 T, 0.95e20 m-2 (target), LSN, ICRF 3.5 MW, LH 0.63 MW,
neon puffing, steady EDA H-mode, LBO (Al), NINJA puffing (He & D2)
Next shot: no DPCS changes
|
| Jul 25 2012 11:38:07:210AM | 1120725010 | Robert Granetz |
Shot 10 -- Plasma, good shot. 0.8 MA, 5.4 T, 0.95e20 m-2 (target), LSN, ICRF 3.5 MW, LH 0.6 MW,
neon puffing, steady EDA H-mode, LBO (Al), NINJA puffing (He & D2)
Next shot: run the locked mode shot (seg 4); no ICRF, no LH, no He puff (disable B-side-lower)
|
| Jul 25 2012 11:50:14:257AM | 1120725011 | Robert Granetz | Shot 11 -- Plasma, good locked mode shot for HIREX rotation calibration. Rotation locks around t=0.73 s. Next shot: back to main run (seg 2), repeat of shot 10; ICRF, LH, He puff (re-enable B-side-lower) |
| Jul 25 2012 12:14:45:557PM | 1120725012 | Robert Granetz |
Shot 12 -- Plasma, good shot. 0.8 MA, 5.4 T, 0.95e20 m-2 (target), LSN, ICRF 3.5 MW, LH 0.6 MW,
neon puffing, steady EDA H-mode, LBO (Al), NINJA puffing (He & D2)
Next shot: increase He puff to 50 ms (was 40 ms); ICRF programming will be changed; no LH
|
| Jul 25 2012 12:34:03:800PM | 1120725013 | Robert Granetz |
Shot 13 -- Plasma, good shot. 0.8 MA, 5.4 T, 0.95e20 m-2 (target), LSN, ICRF 3.5 MW, no LH,
neon puffing, steady EDA H-mode, LBO (Al), NINJA puffing (He & D2)
Next shot: reduce neon puff amplitude to 35% (was 40%); shorten argon puff to 45 ms;
set nl_04 to 0.9e20 m-2
|
| Jul 25 2012 12:45:36:210PM | 1120725014 | Robert Granetz |
Shot 14 -- Plasma, good shot. 0.8 MA, 5.4 T, 0.95e20 m-2 (target), LSN, ICRF 4 MW, no LH,
neon puffing, steady EDA H-mode, LBO (Al), NINJA puffing (He & D2)
Next shot: increase Ne puff amplitude to 50%
|
| Jul 25 2012 12:59:30:357PM | 1120725015 | Robert Granetz |
Shot 15 -- Plasma, good shot. 0.8 MA, 5.4 T, 0.95e20 m-2 (target), LSN, ICRF 4 MW, no LH,
neon puffing, EDA H-modes, LBO (Al), NINJA puffing (He & D2)
Next shot: decrease Ne puff amplitude to 25%
|
| Jul 25 2012 01:23:20:897PM | 1120725016 | Robert Granetz |
Shot 16 -- Plasma, good shot. 0.8 MA, 5.4 T, 0.9e20 m-2 (target), LSN, ICRF 4 MW, no LH,
neon puffing, EDA H-modes, LBO (Al), NINJA puffing (He & D2)
Next shot: increase Ar puff amplitude to 70%; increase Ne puff amplitude to 45%
|
| Jul 25 2012 01:32:45:273PM | 1120725017 | Robert Granetz |
Shot 17 -- Plasma, good shot. 0.8 MA, 5.4 T, 0.9e20 m-2 (target), LSN, ICRF 4 MW, no LH,
neon puffing, EDA H-modes, LBO (Al), NINJA puffing (He & D2)
Next shot: decrease amplitudes of Ar puff to 60% and Ne puff to 20%
|
| Jul 25 2012 02:00:46:243PM | 1120725018 | Robert Granetz |
Shot 18 -- Plasma, good shot. 0.8 MA, 5.4 T, 0.9e20 m-2 (target), LSN, ICRF 4 MW, no LH,
neon puffing, EDA H-modes, LBO (Al), NINJA puffing (He & D2)
Next shot: reduce argon amplitude to 50% and neon to 45%
|
| Jul 25 2012 02:15:55:800PM | 1120725019 | Robert Granetz |
Shot 19 -- Plasma, good shot. 0.8 MA, 5.4 T, 0.9e20 m-2 (target), LSN, ICRF 4.4 MW, no LH,
neon puffing, EDA H-modes, LBO (Al), NINJA puffing (He & D2)
Next shot: reduce neon puff amplitude to 35%
|
| Jul 25 2012 02:28:37:277PM | 1120725020 | Robert Granetz |
Shot 20 -- Plasma, good shot. 0.8 MA, 5.4 T, 0.9e20 m-2 (target), LSN, ICRF 4.4 MW, no LH,
neon puffing, EDA H-modes, LBO (Al), NINJA puffing (He & D2)
J-port mistakenly modulated.
Next shot: repeat for better J-port performance; also increase argon puff to 60%
|
| Jul 25 2012 02:53:14:490PM | 1120725021 | Robert Granetz |
Shot 21 -- Plasma, good shot. 0.8 MA, 5.4 T, 0.9e20 m-2 (target), LSN, ICRF 4.4 MW, no LH,
neon puffing, EDA H-modes, LBO (Al), NINJA puffing (He & D2)
Next shot: reduce neon puff amplitude to 25%
|
| Jul 25 2012 03:09:34:530PM | 1120725022 | Robert Granetz |
Shot 22 -- Plasma, good shot. 0.8 MA, 5.4 T, 0.9e20 m-2 (target), LSN, ICRF 4.4 MW, no LH,
neon puffing, EDA H-modes, LBO (Al), NINJA puffing (He & D2)
Next shot: neon puff to 50% and argon to 55%
|
| Jul 25 2012 03:25:10:450PM | 1120725023 | Robert Granetz |
Shot 23 -- Plasma, good shot. 0.8 MA, 5.4 T, 0.9e20 m-2 (target), LSN, ICRF 4.4 MW, no LH,
neon puffing, EDA H-modes, LBO (Al), NINJA puffing (He & D2)
Next shot: neon amplitude to 40 volts; NINJA D2 will be changed; turn LH back on
|
| Jul 25 2012 03:52:38:243PM | 1120725024 | Robert Granetz |
Shot 24 -- Plasma, good shot. 0.8 MA, 5.4 T, 0.9e20 m-2 (target), LSN, ICRF 4.3 MW, 0.6 MW LH,
neon puffing, EDA H-modes, LBO (Al), NINJA puffing (He & D2)
Next shot: no DPCS changes
|
| Jul 25 2012 03:57:39:517PM | 1120725025 | Robert Granetz |
Shot 25 -- Plasma, good shot. 0.8 MA, 5.4 T, 0.9e20 m-2 (target), LSN, ICRF 4.3 MW, 0.6 MW LH,
neon puffing, EDA H-modes, LBO (Al), NINJA puffing (He & D2)
Next shot: add 1 ms to pre-fill; neon puff amplitude to 45 volts; nl_04 to 1.0e20 m-2
|
| Jul 25 2012 04:11:38:753PM | 1120725026 | Robert Granetz |
Shot 26 -- Plasma, good shot. 0.8 MA, 5.4 T, 1e20 m-2 (target), LSN, ICRF 4.3 MW, 0.6 MW LH,
neon puffing, EDA H-modes, LBO (Al), NINJA puffing (He & D2)
Next shot: increase outer gap by 3 mm again (move RCUR in by 1.5 mm)
|
| Jul 25 2012 04:30:04:697PM | 1120725027 | Robert Granetz |
Shot 27 -- Plasma, good shot. 0.8 MA, 5.4 T, 1e20 m-2 (target), LSN, ICRF 4.3 MW, 0.6 MW LH,
neon puffing, EDA H-modes, LBO (Al), NINJA puffing (He & D2)
Next shot: no DPCS changes
|
| Jul 25 2012 04:54:30:613PM | 1120725028 | Robert Granetz |
Shot 28 -- Plasma, good shot. 0.8 MA, 5.4 T, 1e20 m-2 (target), LSN, ICRF 4.3 MW, LH (faulting),
neon puffing, EDA H-modes, LBO (Al), NINJA puffing (He & D2)
Next shot: decrease Ne puff amplitude to 40 volts
|
| Jul 25 2012 04:58:54:357PM | 1120725029 | Robert Granetz |
Shot 29 -- Plasma, good shot. 0.8 MA, 5.4 T, 1e20 m-2 (target), LSN, ICRF 4.3 MW, LH (faulting),
neon puffing, EDA H-modes, LBO (Al), NINJA puffing (He & D2)
Next shot: end of run
|
| Engineering Operator Comments | ||||
| Shot | Time | Type | Status | Comment |
| 1 | 09:01:45:153AM | Plasma | Ok | |
| 2 | 09:15:45:403AM | Plasma | Ok | |
| 3 | 09:29:50:510AM | Plasma | Ok | |
| 4 | 09:43:18:950AM | Plasma | Ok | |
| 5 | 09:58:20:617AM | Plasma | Ok | |
| 6 | 10:13:11:743AM | Plasma | Ok | |
| 7 | 10:29:24:317AM | Plasma | Ok | |
| 8 | 10:44:50:363AM | Plasma | Ok | |
| 9 | 11:04:10:567AM | Plasma | Ok | |
| 10 | 11:24:30:130AM | Plasma | Ok | |
| 11 | 11:45:16:427AM | Plasma | Ok | |
| 12 | 12:01:41:903PM | Plasma | Ok | |
| 13 | 12:16:34:597PM | Plasma | Ok | |
| 14 | 12:35:02:007PM | Plasma | Ok | |
| 15 | 12:50:36:110PM | Plasma | Ok | |
| 16 | 01:08:51:413PM | Plasma | Ok | |
| 17 | 01:23:51:240PM | Plasma | Ok | |
| 18 | 01:45:06:813PM | Plasma | Ok | |
| 19 | 02:02:31:590PM | Plasma | Ok | |
| 20 | 02:21:42:827PM | Plasma | Ok | |
| 21 | 02:39:46:187PM | Plasma | Ok | |
| 22 | 02:55:55:103PM | Plasma | Ok | |
| 23 | 03:12:11:770PM | Plasma | Ok | |
| 24 | 03:28:38:277PM | Plasma | Ok | |
| 25 | 03:46:55:100PM | Plasma | Ok | |
| 26 | 04:01:59:930PM | Plasma | Ok | |
| 27 | 04:18:13:967PM | Plasma | Ok | |
| 28 | 04:40:28:677PM | Plasma | Ok | |
| 29 | 04:55:09:217PM | Plasma | Ok | |
| System Availability | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Jul 25 2012 09:01:25:023AM | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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