Miniproposals

Miniproposal: 647 Date Filed: 1/27/2011 Title: Evaluation of MSE issues First Author: Steve Scott Session Leader: Bob Mumgaard (shots 20-24)

Miniproposal: 702 Date Filed: 5/16/2012 Title: Cold pulse modulation experiments for the study of non-local heat transport and correlation with rot First Author: Chi Gao Session Leader: Chi Gao (shots 25-34)

Miniproposal: 719 Date Filed: 7/21/2012 Title: Shoelace antenna operation in EDA H-mode plasmas. First Author: Theodore Golfinopoulos Session Leader: Theodore Golfinopoulos (shots 1-19)

Engineering Operator Run Comment

MP719 SL Theodore Golfinopoulos, MP 702 2pm-4pm Chi Gao PO Ian Hutchinso

Session Leader Plans

Entered: Sep 25 2012 03:38:18:577PM

Author: Chi Gao

MP 702: Cold pulse modulation experiments (2 hours: 2pm-4pm) SL: cgao PO: hutchinson This 2 hours run is to recover the lost data of 1120919. put 1.5 psi Ar in B-SIDE-LOWER at 0.3s for 200ms for HIREX-Sr Target plasma: LSN nl04: 0.8*1e20, 0.5*1e20, 0.7*1e20 Ip = 0.8,1.1MA. Bt = 5.45 T ================ Shot Plan =============================================== (1) steady density with current scan: 6 shots --(a)x2 Ip = 0.8MA, Bt = 5.4T nl04 ~ 0.80 ref: 1120106010 --(b)x2 Ip = 1.1MA, Bt = 5.4T nl04 ~ 0.50 ref: 1120720019 --(c)x2 Ip = 1.1MA, Bt = 5.4T nl04 ~ 0.70 (2) time permits: 1-2 shots. Locked mode. This part will be tough.ref: try from seg 4 of 1120830005.

Entered: Sep 25 2012 08:34:12:167PM

Author: Theodore Golfinopoulos

MP719 Goals: 1. Establish ohmic EDA H-mode in reversed field, upper single null plasma 2. Run Shoelace antenna in phase-lock mode; modulate mode/antenna-drive phase in real-time during shot using new hardware 3. Run mirror probe; see if we observe antenna response on this probe. Boronization: half boronization overnight 2 hours of ECDC in helium on morning prior to run, standard parameters. Field range: 3.5-5 T Current range: 700-900 kA No ICRF (Yijun Lin will have short pulse to test J antenna 50-100 ms, 100-200 kW, either at 1.6 or 0.5 s) No DNB No LH Cryo pump on standby Diagnostics: Required: Mirnov coils, PCI, polarimeter, differential TCI, reflectometer, Edge Thomson, GPI. Desired: edge reflectometer Reference shot: 1120831026 (minus disruption)

Entered: Sep 26 2012 10:27:45:873AM

Author: Bob Mumgaard

Today from 1pm~2pm of the run we will take some beam into gas w/ fields shots as part of calibrating/characterizing the MSE diagnostic. This is (loosely) part of MP647. MP 647: Evaluation of MSE issues SL: Mumgaard PO: Wolfe We have drawn several conclusions from previous data in quiescent ohmic shots this campaign. Below is the conclusion and proposes some tests to further illicidate them: Conclusion 1) The statisical variation in the MSE polarization angle measured from the beam is higher than we expect. When looking at the ISC during a discharge the statistical uncertainty scales nearly properly with signal level and is what we expect from previous measurements made invessel. However, when viewing the beam, for a given signal level the variability of the polarization angle is a factor of 2-3 larger than what we get from the ISC in similar conditions. Uncertainty due to background subtraction does not account for the discrepency for most shots leading us to suspect something in the beam is fluctuating causing the polarization angle to fluctuate. We don't know what this could be. We would like to rule out problems with background subtraction. Proposed experiment: Look at beam into gas w/ fields thereby eliminating the polarized background. Measure the variability in the polarization angle from the beam and compare to the variability from the ISC and invessel experiments at similar signal levels. 2) Althought the polarization uncertainty during the beam pulse is higher than expected it does behave statistically within a given pulse but not beam pulse to beam pulse. Dividing up the pulse into different bin sizes and comparing the variation within a pulse shows that the standard error properly describes the variation of the polarization angle within the beam pulse. However, between adjacent beam pulses the polarization angle changes outside of this standard error by a factor of 2-3 in quiessent plasmas. This looks as if everytime the beam fires something changes in the velocity disrupution or pointing angle of the beam (keep in mind we're worrying about things on the 0.05deg level). We would like to see if this conclusion holds for beam pulse trains significantly different than what we usually run, this could give clues to what might be changing. Proposed experiment: Change the beam modulation during a beam into gas w/ fields. Compare the variabilty of a unmodulated beam with one with only infrequent modulation and one with the standard modulation. Bin the data different ways and see if the above conclusion continues to hold as we exend the beam on periods. 3) We do not know how the variability of the beam polarization angle scales with MSE signal level. In order to obtain this we need to keep the beam at constant parameters but vary the signal level by varying the excitation of the beam. Proposed experiment: Beam into gas w/ fields with a torus pressure scan within the discharge. This will change the excitation and attenuation of the beam and thus change the signal level allowing us to determine how the variability in beam polarization angle scales with photon rate. The proposed experiments encompass 4 beam into gas w/ field shots: 1) A normal modulated beam at constant pressure and field 2) A partly modulated beam into gas at constant pressure and field 3) An unmodulated beam at constant pressure and field 4) A normal modulated beam with a gas pressure scan at constant field The gas pressure is specified to maximize the MSE signal The vertical field is specified to minimize the effect of secondary neutral emission ==============REQUIRED SUBSYSTEMS================= DNB (will not run without) no plasma ============Required Diagnostics================== MSE-DNB w/ ISC enabled g-side mks DNB tank and duct mks DNB spectrometer ============Desired Diagnostics================== BES fibers into Kaiser spectrometer ============Gas setup================== Working gas species: D2 Disable all gas except fueling ================ Shot Plan =============================================== + + + Take a few DNB shots into the calorimeter with the following timings to condition the beam up: Timing 1: Start at 0.1s 80ms on, 20ms off 14 pulses Timing 2: Start at 0.1s 300ms on, 20ms off 4 pulses Timing 3: Start at 0.1s 1500ms on, 0ms off 1 pulse Note on length of beam. Take the best performance acheivable from the previous day. + + + + TF field to 5.4T Shot 1: engineering setup from 1070529010 Reference shot /home/sscott/pcs/1120926101 Enable only pg4, turn ninja off. TORVAC set up for Torus Valves closed in pulse Goal gas pressure: 0.8mTorr. Beam timing 1 Shot 2: No power shot, beam into gas w/o fields Beam timing 1 Shot 3: No changes to gas or fields setup from shot 1 Beam timing 2 Shot 4: No changes to gas or fields Beam timing 3 Shot 5: No changes to fields Goal: Gas pressure scan within a shot from ~0.5mtorr to 2.5mtor See shot 1070529008 for timing beam timing 3 Shot 6: No power shot beam into gas w/o fields with same gas timing as shot 5 Total of 4 power shots and 2 no power shots After the run take a few beam into calorimeter shots with the different timings and with the bending magnet on/off

Physics Operators Plans

Entered: Sep 25 2012 04:52:02:480PM

Author: Ian Hutchinson

Plan: Try to cope with demands of multiple MPs... Run begins at 09:00 and ends at 18:00 Power systems as on: 1120831026 Gas setup: Nothing new Enable gate-valves and shutters: ECE Torvac gatevalve toggle (yes/no): no Boronization(yes/no): YES Overnight ECDC (yes/no): ECDC for at least 2 hours after boronization. ICRF(yes/no): no LH(yes/no): no Cryopump (yes/no): no DNB (yes/no): no

Session Leader Summaries

Entered: Sep 26 2012 02:56:39:820PM

Author: Theodore Golfinopoulos

MP719 Summary for first half of run, Shots 1-19 (First plasma attempt was on Shot 3) The primary goal of today's run was to achieve a steady EDA H-mode, and then exercise the phase lock system, including the new phase delay board. Only Shot 3 exhibited steady QCMs, however - this shot had an unusually high density (the transition to H-mode happened around NL04=1.4E20 m^-2). While we achieved H-modes throughout the day, none had a strong enough QCM such that we could lock to it. Bumping the field up did not improve the situation, though a field swing downward did seem to aid the transition into H-mode. We benefitted from 40 ms pulses of ICRF at 0.7 s starting on Shot 16 - these seem to trigger H-modes on several shots. On the other hand, the Shoelace frequency modulation waveform appeared regularly on both PCI and polarimetry. This reproduces what we had seen on 1120814. The half run on 1120831, which did not benefit from boronization and which did not have long-lived H-modes, did not show density fluctuations from the antenna. We recovered from two faults between yesterday and today: (1) a drop in antenna inductance from 6 uH to 4 uH, as well as a reduction in resistance, and (2) a CAMAC issue that intermittently eliminated, essentially, our VCO output. We think the change in antenna impedance may be resulting from a short on the antenna, perhaps eliminating a few of the upper rungs on the antenna. Joe Bosco determined that the CAMAC fault was localized to another crate around C port containing triggers for some spectroscopy diagnostics, particularly D_alpha. After this crate was turned off, we were able to measure the antenna impedance using a LeCroy 'scope. The following morning, after boronization had finished, we retuned the matching network calibration using the new impedance measurement. This allowed antenna performance at nearly normal operational levels (i.e. 70 to 80 A in the antenna). Thanks to Physics Operators, Ian Hutchinson and Jerry Hughes, and the whole crew.

Entered: Sep 26 2012 05:29:44:577PM

Author: Chi Gao

Run summary of 1120921 (MP702. 2 hours) We had 10 shots today(#25-#34) 3 disruptions: #29(0.67s), #31(0.255s), #33(1.25s) 1 fizzle: #30 6 full plasmas: #25,#26,#27,#28,#32,#34 #25: no LBO injection #28: No TS #32: No HiReX #26,#28,#32,#33,#34 are good shots for analysis.(although there are some diagnostics missing for some shots...) (1) Ip = 0.8MA. #26: nl04=0.8.nl04=0.8. Good SOC and pure diffusion. (2) Ip = 1.1MA. #27: nl04=0.8.nl04=0.8. LOC. This shot was intended to have nel04~0.4, but density was higher, probably due to the boronization. #28: nl04 = 0.5-0.7. LOC. Core Te increase. No TS this shot #32: nl04 = 0.6. Good LOC. Lost HiReX #33: nl04 = 0.75. Good LOC. There are some interesting magnetic fluctuation before the locked disruptions (#29 and #33). Ted will take a look at them.

Entered: Sep 27 2012 07:34:58:247PM

Author: Bob Mumgaard

Today we performed a short beam into gas w/ fields experiment. The goal was to judge how the MSE signal statistics scale with beam pulse length and signal level. Previous analysis on beam into plasma data showed a larger variability in the measured polarization level than expected and a beam pulse-beam pulse dependence. The fields and gas programing was precisely what we asked for. However, we were able to get 2 of the 4 requested conditions before the beam started to have HV faults in the inverter system which significantly limited its reliability and moved the spectrum out of the MSE bandpass filters. The data obtained on the 3 good shots (1120927020, 21, 22) will allow us to answer a few of the questions this experiment was designed to target.

Physics Operator Summaries

Entered: Sep 26 2012 12:37:18:670PM

Author: Jerry Hughes

I was PO from shots 9 through 16 today, for MP719. Shots were all USN, reversed field, with low-field startup. Ian handled most of the set up for these. Mostly I adjusted TF and nl04 programming to try to optimize H-mode access and quality for the SL. These discharges had a few issues. Shots 13 and 14 both disrupted early. These I attributed mainly to crud falling in during and shortly after ramp-up. Note that the large H-L transitions on these shots have a tendency to lead to disruptions. Shot 10 had a massive snake following the H-L.

Entered: Sep 26 2012 04:45:10:330PM

Author: Ian Hutchinson

Summary -------- MPs were completed as required. Finished 18 minutes early (not 1 hour early as scheduled). No scorecard for today because the code does not work well with the many null shots at the beginning and middle of the day.

Session Leader Comments
Sep 26 2012 09:30:33:280AM	1120926003	Theodore Golfinopoulos	Shoelace Parameters Freq: triangle wave sweep, fm=10 Hz, f0=110 kHz, DeltaF=20 kHz Amp: amp_wave_w max=200 Phase Lock and Phase Delay: Disabled Result: Great first shot! 4 H-modes, each with QCM. Antenna ran between 70 and 80 A - up around where it should be.
Sep 26 2012 09:48:16:670AM	1120926004	Theodore Golfinopoulos	Shoelace Parameters: Freq: triangle wave sweep, fm=10 Hz, f0=125 kHz, DeltaF=25 kHz Amp: amp_wave_w max=200 - unchanged from last shot Phase Lock and Phase Delay: Disabled Result: Plasma dies at 0.15 s Next: try again
Sep 26 2012 09:56:39:970AM	1120926005	Theodore Golfinopoulos	Shoelace parameters: unchanged from last shot Freq: triangle wave sweep, fm=10 Hz, f0=125 kHz, DeltaF=25 kHz Amp: amp_wave_w max=200 - unchanged from last shot Phase Lock and Phase Delay: Disabled Result: H-mode with huge density rise. Get weak activity in QCM band until around 1.47 s, at which point a coherent QCM appears (and QCM_DETECT goes high). Shoelace is visible on BP_EF_BOT, for example, before the H-mode. Next: Same.
Sep 26 2012 10:10:39:653AM	1120926006	Theodore Golfinopoulos	Shoelace parameters: unchanged from last shot Freq: triangle wave sweep, fm=10 Hz, f0=125 kHz, DeltaF=25 kHz Amp: amp_wave_w max=200 - unchanged from last shot Phase Lock and Phase Delay: Disabled Result: H-mode late in shot. Again, QCM appears very late - around 1.6 s, between 60 and 110 kHz. There are several peaks in the QCM spectrum in this band. Some weak modes before that - Washboards? Antenna ran between 70 and 80 A - in the correct range. Next: changed Shoelace frequency range from 90 to 140 kHz. Otherwise, same Shoelace parameters.
Sep 26 2012 10:30:20:900AM	1120926007	Theodore Golfinopoulos	Shoelace parameters: lower frequency range Freq: triangle wave sweep, fm=10 Hz, f0=115 kHz, DeltaF=25 kHz Amp: amp_wave_w max=200 - unchanged from last shot Phase Lock and Phase Delay: Disabled Result: Similar to last shot - H-mode late in shot. QCM detect does not go high. Next: increase density to reproduce EDA's of Shot 3
Sep 26 2012 10:50:30:427AM	1120926008	Theodore Golfinopoulos	Shoelace parameters: unchanged from last shot Freq: triangle wave sweep, fm=10 Hz, f0=115 kHz, DeltaF=25 kHz Amp: amp_wave_w max=200 - unchanged from last shot Phase Lock and Phase Delay: Disabled Result: disruption early H-mode this time, around 0.45 s The Shoelace antenna is visible on PCI (e.g. Channels 28 and 29, maybe others) and polarimeter Channel FROT_03. QCM_DETECT does not go high during this shot. After this shot, went into cell and reset Master Control Board, since tuning number outputs were not coming out once again. Next: try to squeeze RGAP down to 2 mm.
Sep 26 2012 11:06:38:337AM	1120926009	Theodore Golfinopoulos	Shoelace parameters: unchanged from last shot Freq: triangle wave sweep, fm=10 Hz, f0=115 kHz, DeltaF=25 kHz Amp: amp_wave_w max=200 - unchanged from last shot Phase Lock and Phase Delay: Disabled Problem with PCI phase plate, causing jitter. Shoelace is visible on PCI and polarimeter Next: enable phase lock, phase modulation 0 to 180 degrees, 10 Hz square wave
Sep 26 2012 10:59:45:890AM	1120926010	Steve Scott	Interestingly on this shot, the plasma falls out of Hmode at about 0.99 sec and the Nel immediately starts to decrease, but Neo from Thomson continues to INCREASE up to nearly 6.e20 at t=1.08 sec, and the neutron emission also increases substantially over that time period.
Sep 26 2012 11:08:30:730AM	1120926010	Theodore Golfinopoulos	Shoelace parameters: phase lock enabled Freq: triangle wave sweep, fm=10 Hz, f0=115 kHz, DeltaF=25 kHz Amp: amp_wave_w max=200 - unchanged from last shot Phase Lock and Phase Delay: 0-180 degree square wave modulation at 10 Hz Result: got two H-modes. Not quite EDA-ish - there is activity in the QCM band, but it doesn't look like a regular QCM, and we don't lock to it (i.e. QCM_DETECT stays low). Next: bump field from 3.6 to 4.0 T at 0.75 s to try to get a more EDA-ish H-mode
Sep 26 2012 11:22:47:383AM	1120926011	Theodore Golfinopoulos	Shoelace parameters: phase lock enabled Freq: triangle wave sweep, fm=10 Hz, f0=115 kHz, DeltaF=25 kHz Amp: amp_wave_w max=200 - unchanged from last shot Phase Lock and Phase Delay: 0-180 degree square wave modulation at 10 Hz Result: Two H-modes, first around 0.8 s, second around 1.4 s. There may be a brief period of cleaner QCM, but it seems to be short-lived such that QCM_DETECT stays low (PLL hysteresis). Antenna running on its frequency scan as expected. Antenna is visible on a few channels of PCI, less clear on polarimeter. Next: Increase density, try to hit NL04=1.2E20 early, bump field even higher - up to 4.5 T
Sep 26 2012 11:41:18:597AM	1120926012	Theodore Golfinopoulos	Shoelace parameters: same as last shot Freq: triangle wave sweep, fm=10 Hz, f0=115 kHz, DeltaF=25 kHz Amp: amp_wave_w max=200 - unchanged from last shot Phase Lock and Phase Delay: 0-180 degree square wave modulation at 10 Hz Maybe a bit more EDA-ish - an intermittent QCM coming down in frequency later in the shot with the H-mode. There is a triangle-like bright excursion in PCI in the QCM band, but this does not appear to be at the Shoelace frequency Next: swing down in field, then swing up to 4.5 again at 0.85 s.
Sep 26 2012 11:55:44:830AM	1120926013	Theodore Golfinopoulos	Shoelace parameters: same as last shot Freq: triangle wave sweep, fm=10 Hz, f0=115 kHz, DeltaF=25 kHz Amp: amp_wave_w max=200 - unchanged from last shot Phase Lock and Phase Delay: 0-180 degree square wave modulation at 10 Hz Result: Early disruption around 0.347 s Next: try again with same plasma. Change phase modulation: Stair-step phase modulation, 0,90,180,90,0,-90,-180,0,... at 4 Hz.
Sep 26 2012 11:55:37:930AM	1120926014	Theodore Golfinopoulos	Shoelace parameters: stair-step phase modulation; otherwise, same as last shot Freq: triangle wave sweep, fm=10 Hz, f0=115 kHz, DeltaF=25 kHz Amp: amp_wave_w max=200 - unchanged from last shot Phase Lock and Phase Delay: Stair-step phase modulation, 0,90,180,90,0,-90,-180,0,... at 4 Hz. Result: Plasma is lost at 0.10 s Next: try again.
Sep 26 2012 12:26:10:220PM	1120926015	Theodore Golfinopoulos	Shoelace parameters: same as last shot Freq: triangle wave sweep, fm=10 Hz, f0=115 kHz, DeltaF=25 kHz Amp: amp_wave_w max=200 - unchanged from last shot Phase Lock and Phase Delay: Stair-step phase modulation, 0,90,180,90,0,-90,-180,0,... at 4 Hz. Result: 3 H modes. Last one is promising. First one seems to be induced by Yijun Lin's ICRF tests with J antenna. Next: Move ICRF pulse to 0.7 s at same power level to try to kick an H-mode.
Sep 26 2012 12:31:54:757PM	1120926016	Theodore Golfinopoulos	Shoelace parameters: same as last shot Freq: triangle wave sweep, fm=10 Hz, f0=115 kHz, DeltaF=25 kHz Amp: amp_wave_w max=200 - unchanged from last shot Phase Lock and Phase Delay: Stair-step phase modulation, 0,90,180,90,0,-90,-180,0,... at 4 Hz. Result: 3 H-modes, first seems to be induced by ICRF pulse, but doesn't last long enough for the field bump at 0.95 s. Still no QCM's for any substantial amount of time. There is a nice H-mode in rampdown. Note: also had a deuterium puff for Christian Theiller at 1.2 s - I wonder if corresponding density rise contributed to second H-mode. Next: Advance bump in B_T forward in time to 0.8 s.
Sep 26 2012 12:54:30:850PM	1120926017	Theodore Golfinopoulos	Shoelace parameters: move Shoelace pulse to 0.6-1.6 s to try to catch H-mode in rampdown; increase phase modulation frequency Freq: triangle wave sweep, fm=10 Hz, f0=115 kHz, DeltaF=25 kHz Amp: amp_wave_w max=200 - unchanged from last shot Phase Lock and Phase Delay: Stair-step phase modulation, 0,90,180,90,0,-90,-180,0,... at 6 Hz. Result: get an H-mode around 0.77 s; a few shallow partial density drop outs afterward. There is a density rise around 1.2 s, perhaps corresponding to the Ninja puff, but there is also a transition at 1.19 s where the "QCM" disappears Next: increase density, puff earlier.
Sep 26 2012 12:57:18:150PM	1120926018	Theodore Golfinopoulos	Shoelace parameters: same as last shot Freq: triangle wave sweep, fm=10 Hz, f0=115 kHz, DeltaF=25 kHz Amp: amp_wave_w max=200 - unchanged from last shot Phase Lock and Phase Delay: Stair-step phase modulation, 0,90,180,90,0,-90,-180,0,... at 6 Hz. Result: very similar to last shot. A density ramp starts around 1.1 s, before NINJA puff. Still no steady QCM. Next: advance the field bump earlier in time, and reduce its height.
Sep 26 2012 01:05:13:027PM	1120926019	Theodore Golfinopoulos	Shoelace parameters: same as last shot Freq: triangle wave sweep, fm=10 Hz, f0=115 kHz, DeltaF=25 kHz Amp: amp_wave_w max=200 - unchanged from last shot Phase Lock and Phase Delay: Stair-step phase modulation, 0,90,180,90,0,-90,-180,0,... at 6 Hz. Result: disruption around 0.94 s. Short H-mode early - doesn't quite look like an EDA H-mode, though there is activity in the QCM band during the RF pulse. Shoelace is visible on PCI. Next: changeover to new MP under Bob Mumgaard. That's all from us, folks. Thanks.
Sep 26 2012 01:29:27:463PM	1120926020	Bob Mumgaard	First shot in the scan. MSE polychromator disabled. MSE in nominal configuration with HV at 1750/1750/1750/1750 First shot will be beam at 80/20. Beam, fields, gas, look good. Next we'll change the timing to timing 2. We will forgo the beam into gas without fields.
Sep 26 2012 01:44:14:993PM	1120926021	Bob Mumgaard	Goal: Change the beam timing to the longer pulses, timing 2. DNB fires a test shot into C-Mod before this pulse (1120926325). Beam's 3rd and 4th pulses were no good. Inverters fault out. Beam fires into the machine to see if its recoverable, 326 Looks like we need to drop the arc current. 327 looses a single invertor. Drop the arc current further. Next: Repeat, this time with the a good beam.
Sep 26 2012 02:01:45:610PM	1120926022	Bob Mumgaard	Didn't get the beam to go the whole time. We have 2 good pulses. Take a few shots in between the cmod shot. Decided to move onto the long pulse. Take a test shot into the torus, we loose a few inverters early. Drop the arc current down to 3.1 and shorten to 1.2s.
Sep 26 2012 02:07:59:430PM	1120926023	Bob Mumgaard	Goal: Long single pulse of DNB. Didn't get it, faults out early. Next: Move to the last shot, normal modulation with a pressure scan within a shot. Load gas from 1070529008. Change beam timing back to 80/20.
Sep 26 2012 02:18:56:817PM	1120926024	Bob Mumgaard	Beam faults out. Pressure good. Give up the machine. And on the beam.
Sep 26 2012 03:41:30:897PM	1120926025	Chi Gao	plan: 5.4T, 0.8MA, nl04=0.8. result: Full plasma. No LBO. HiReX signal ok. Next: Repeat
Sep 26 2012 03:02:23:237PM	1120926026	Chi Gao	plan: 5.4T, 0.8MA, nl04=0.8. result: Good SOC. Core Te decrease. Next: 5.4T, 1.1MA, nl04=0.5
Sep 26 2012 03:41:19:987PM	1120926027	Chi Gao	plan: 5.4T,1.1MA, nl04=0.5 result: nl04 goes to 0.8~0.9. LOC.Core Te increase. Next: Repeat. 5.4T,1.1MA, nl04=0.5
Sep 26 2012 03:26:55:780PM	1120926028	Chi Gao	plan: 5.4T,1.1MA, nl04=0.5 result: nl04 goes to 0.5~0.7. LOC.Core Te increase. No TS this shot Next: Repeat. 5.4T, 1.1MA, nl04=0.5
Sep 26 2012 03:57:27:080PM	1120926029	Chi Gao	plan: 5.4T,1.1MA, nl04=0.5 result: Locked at 0.6s and disrupted at 0.67s. Next: go to higher density. 5.4T, 1.1MA, nl04=0.6
Sep 26 2012 03:56:02:277PM	1120926030	Chi Gao	plan: 5.4T,1.1MA, nl04=0.6 result: fizzle, as "expected" Next: Repeat. 5.4T, 1.1MA, nl04=0.6
Sep 26 2012 04:09:16:390PM	1120926031	Chi Gao	plan: 5.4T,1.1MA, nl04=0.6 result: disrupted at 0.255s. Prad is high Next: Repeat. 5.4T, 1.1MA, nl04=0.6
Sep 26 2012 04:21:33:583PM	1120926032	Chi Gao	plan: 5.4T,1.1MA, nl04=0.6 result: good shot. Core Te increase, BUT HIREX module 2-3 got lost.. I should have noticed this from shot 31 Next: Repeat. 5.4T, 1.1MA, nl04=0.6
Sep 26 2012 04:33:05:553PM	1120926033	Chi Gao	plan: 5.4T,1.1MA, nl04=0.6 result: Good shot. Core Te increase. Locked at 1.25s and disrupted at 1.33s Next: go to higher density. 5.4T,1.1MA, nl04=0.8
Sep 26 2012 04:43:48:720PM	1120926034	Chi Gao	plan: 5.4T,1.1MA, nl04=0.75 result: Good shot. Core Te increase. End of the run

Physics Operator Comments
Sep 26 2012 08:45:31:787AM		Ian Hutchinson	Load from 1120831026. It has segment 1 and 2 in use. Fill puff is 25ms. The plasma shape is poorly controlled during plasma current ramp. It is limited for much of the time till 400ms, even though at 200ms it is nicely diverted (if a little bit vertically challenged). This appears to be deliberate because clearin is drawn at -0,03. According to SLs this is not desired or required. Also the Ip gain is ridiculously low during the first half second. And ICEF4 gain is staying up at 5 till 0.5s. Load from 1120914030 to look at stuff. Clearin ramps from -0.03 to 0 during .12 to .2s. gain is 5 stepping to 9. Ip gain is low. 0.3 till .55s. ICEF4 is similar.So main difference is clearin. Changes. Load from 1120831026. Set clearin to zero at .22s Rcur seems to be very low in the current ramp. Then ramps out to 0.6677. Draw further out 0.66 at .18s. Ip gain raise to 5 at .35s. Set zxu to -0.01, was just above zero. Rcur to .666 at .325s and keep it there. About 1.5mm in from where it started. Load
Sep 26 2012 09:10:32:060AM	1120926001	Ian Hutchinson	No power test.
Sep 26 2012 09:10:02:910AM	1120926002	Ian Hutchinson	No power test shot Lower nl04 demand to 0.8e20. Also lower at 0.13s to reduce initial puff. Load Worry about data system. But the bus rogowskis look ok at the bit noise level.
Sep 26 2012 09:28:51:097AM	1120926003	Ian Hutchinson	Plasma disrupts at 1.6s. Lower nl04 gain from 4 to 2. Remove the big step in the Rcur at the flat top end. It seems to be the cause of the disruption. Load.
Sep 26 2012 09:40:54:660AM	1120926004	Ian Hutchinson	Plasma to .15s. Radiates itself to death. No changes. Try to see what happened. Initial gas puff might be a bit too much. There's 90ms of trailing puff at the level of 20.
Sep 26 2012 09:56:49:093AM	1120926005	Ian Hutchinson	Plasma to 1.65s Turn initial gas puff off at 50ms. Nl04 derivative gain to 5 in segment 2. Load.
Sep 26 2012 10:15:59:497AM	1120926006	Ian Hutchinson	Plasma to 1.73s. H-mode rather late, perhaps it liked the higher density. Much decrease the rcur movement during rampdown. Raise nl04 to 1e20 Turn on gain on Ip up to 1 at 60ms.
Sep 26 2012 12:25:33:630PM	1120926007	Ian Hutchinson	Plasma to rampdown. Ramp zxu down faster and stronger. nl04 to 1.2e20 Segment 1 Ip gain to 1.6 Load
Sep 26 2012 10:28:54:987AM	1120926008	Jerry Hughes	Taking over for Ian, beginning with shot 9. Shot 8 was an early disruption, seems to have resulted from the unwanted H-L transition.
Sep 26 2012 10:49:41:873AM	1120926009	Jerry Hughes	Shot 9. PO changes: In seg2, reduce nl04 demand at 0.3 from 1.2e20 to 1.0e20. Leave in ramp up to 1.2e20 by 0.6s. In seg2, adjust RCUR to 0.667 in flattop (from 0.666) In seg1, adjust prefill from 26ms to 24ms to try to accommodate the disruption on shot 8. Load at 26-Sep-2012 10:39:18.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: RGAP is down to ~2mm, as requested. Density is as demanded, and L-H is delayed to 0.73s Still have an H-L which leads to a disruption at 1.17s.
Sep 26 2012 11:00:41:473AM	1120926010	Jerry Hughes	Shot 10. No PO changes. Result: Ohmic H-mode again, with H-L transition. Big MHD obvious on the soft x-rays, nl04. But, it does go into rampdown, with another Ohmic H-mode.
Sep 26 2012 11:16:38:840AM	1120926011	Jerry Hughes	Shot 11 PO changes. SL requests a TF jump to 4.0T beginning at 0.75s In Seg2, step TF demand from 98000 to 108900A at 0.752s Load at 26-Sep-2012 11:06:14.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Couple of Ohmic H-modes. The first one is triggered after the Bt jog to 4.0T.
Sep 26 2012 11:25:59:400AM	1120926012	Jerry Hughes	Shot 12 PO changes: In Seg 2, get nl04 up to 1.2e20 by 0.56s and keep it there. In Seg 2, set TF demand from 108900A to 124000A starting from 0.752s. Load at 26-Sep-2012 11:19:18.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Plasma into rampdown. H-mode late. nl04 is a bit lower than programmed.
Sep 26 2012 11:43:10:897AM	1120926013	Jerry Hughes	Shot 13 PO changes Bump TF down to 87100A at 0.65 and then up to 124000A at 0.85s. Load at 26-Sep-2012 11:34:51.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Plasma didn't make it to any of the programmed field waggles. Disrupted at 0.35s. Something fell in?
Sep 26 2012 12:03:58:517PM	1120926014	Jerry Hughes	Shot 14. No PO changes. Result: Gets into trouble early, like 0.04s. High Prad and arrested current rise. Disrupts at 0.1s. Startup looks very similar, perhaps plasma is not pushing out as much.
Sep 26 2012 12:12:13:293PM	1120926015	Jerry Hughes	Shot 15. No PO changes. Fingers crossed. Result: runs this time. Good startup this time, with my doing nothing. 3 H-modes, first one Rf triggered, last two Ohmic.
Sep 26 2012 12:27:59:643PM	1120926016	Jerry Hughes	Shot 16. Set up, then Ian will take over. Changes: Remove drop in Bt. Have jump in TF occur at 0.95s. Load at 26-Sep-2012 12:15:57.00 Open tree /home/jwhughes/physop/pcs_scratch -1 Open tree done Result: Shot behaves well, full length. RF triggered H-mode isn't sustained very long.
Sep 26 2012 12:39:16:490PM	1120926016	Ian Hutchinson	Plasma to rampdown. Load from shot 16. Move Bt rampup to .8s from .95s
Sep 26 2012 12:51:23:300PM	1120926017	Ian Hutchinson	Plasma to rampdown. Raise nl04 to 1.2 at .35s
Sep 26 2012 01:01:40:300PM	1120926018	Ian Hutchinson	Plasma to rampdown. Bt ramp start at .7s only to 112kA rather than 124kA.
Sep 26 2012 01:31:01:880PM	1120926019	Ian Hutchinson	Plasma disrupts at .93s. Switch to beam into gas part of the day. Load from the shot that SScott developed in /home/sscott/pcs/ Looks correct. Load.
Sep 26 2012 01:34:32:540PM	1120926020	Ian Hutchinson	Beam into gas shot. Successful. No changes
Sep 26 2012 01:49:35:400PM	1120926021	Ian Hutchinson	Beam into gas. Machine currents were correct.
Sep 26 2012 02:05:47:733PM	1120926022	Ian Hutchinson	Beam into gas. Machine currents were correct. Still beam problems.
Sep 26 2012 02:17:20:397PM	1120926023	Ian Hutchinson	Beam into gas. Machine currents were correct. Import segment 1 from 1070529008. Copy the PG4 programming from that to segment one of today's shot. Load.
Sep 26 2012 02:17:33:140PM	1120926024	Ian Hutchinson	Currents ok.
Sep 26 2012 02:40:48:367PM	1120926025	Ian Hutchinson	Moving to the Chi Gao MP. Reconstruct the shot that Jerry Hughes had constructed last week, because the data for that shot was lost. Load from 1120907028. Ip to 0.8MA TF to 153kA PG1 at 100 from .3 to .5s. NL04 TO .8E20 Load Plasma to rampdown. Impurity injector had a problem and did not fire.
Sep 26 2012 03:03:12:527PM	1120926026	Ian Hutchinson	Plasma to rampdown. Many repetitive impurity blow-offs. nl04 to 0.5e20 Ip to 1.1MA Load
Sep 26 2012 03:20:53:600PM	1120926027	Ian Hutchinson	Plasma to rampdown. Got substantially higher density than programmed. Reduce PG3 initial puff to zero by .08s. Tweak Ip rise to put more of the second ramp earlier. Load
Sep 26 2012 03:33:12:680PM	1120926028	Ian Hutchinson	Plasma to rampdown. Density was lower, but still not controlled. Reduce the PG3 early puff to height 20 from height 40. Load.
Sep 26 2012 03:45:32:193PM	1120926029	Ian Hutchinson	Plasma disrupts at .68s. Appears to Lock at about 0.6s. This gives us a calibration. PG3 early puff level to 30. nl04 to 0.6e20 Load
Sep 26 2012 03:58:52:047PM	1120926030	Ian Hutchinson	Fizzle. Fill puff to 22ms from 42ms. I think this startup was a cryopumped one, even though it _says_ noncryo.
Sep 26 2012 04:10:54:507PM	1120926031	Ian Hutchinson	Plasma disrupts at .24s. Hit by a brick, but after things seem to get resistive. No changes.
Sep 26 2012 04:27:13:210PM	1120926032	Ian Hutchinson	Plasma. Reasonably steady density. Drop nl04 gain to 3 from 4. Derivative to 10 (from 6) Seg 1 initial PG3 puff to level 40 Load
Sep 26 2012 04:43:18:993PM	1120926033	Ian Hutchinson	Plasma disrupts at 1.32s. Locks at about 1.23s nl04 to .8e20
Sep 26 2012 04:43:43:257PM	1120926034	Ian Hutchinson	Plasma to rampdown. Trophy shot at nl07=.7e20.

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	07:41:18:220AM	Test	Bad	Camac 2 server fail
2	09:02:17:190AM	Test	Ok
3	09:11:47:890AM	Plasma	Ok
4	09:25:43:627AM	Plasma	Ok
5	09:39:00:590AM	Plasma	Ok
6	09:54:26:020AM	Plasma	Ok
7	10:08:42:753AM	Plasma	Ok
8	10:21:26:073AM	Plasma	Ok
9	10:39:53:637AM	Plasma	Ok
10	10:52:26:340AM	Plasma	Ok
11	11:06:55:723AM	Plasma	Ok
12	11:21:33:540AM	Plasma	Ok
13	11:35:47:623AM	Plasma	Ok
14	11:49:00:660AM	Plasma	Ok
15	12:03:16:783PM	Plasma	Ok
16	12:17:37:250PM	Plasma	Ok
17	12:30:48:287PM	Plasma	Ok
18	12:44:21:117PM	Plasma	Ok
19	12:58:49:587PM	Plasma	Ok
20	01:21:50:377PM	Test	Ok
21	01:34:21:737PM	Test	Ok
22	01:46:51:503PM	Test	Ok
23	02:00:09:363PM	Test	Ok
24	02:13:33:447PM	Test	Ok
25	02:32:36:497PM	Plasma	Ok
26	02:46:02:177PM	Plasma	Ok
27	03:01:15:163PM	Plasma	Ok
28	03:15:51:607PM	Plasma	Ok
29	03:31:02:480PM	Plasma	Ok
30	03:43:34:730PM	Plasma	Ok
31	03:56:05:387PM	Plasma	Ok
32	04:11:43:920PM	Plasma	Ok
33	04:25:04:050PM	Plasma	Ok
34	04:38:19:320PM	Plasma	Ok

System Availability

Sep 26 2012 07:40:58:080AM

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