Miniproposals

Miniproposal: Date Filed: Title: First Author: Session Leader: Anne White (shots 21-29) Session Leader: Matt Reinke (shots 30-34)

Miniproposal: 689 Date Filed: 1/11/2012 Title: Validation of gyrokinetic transport models across the ITG/TEM boundary in L-mode and I-mode plasmas First Author: Anne White Session Leader: Nathan Howard (shots 1-6) Session Leader: Anne White (shots 7-20)

Engineering Operator Run Comment

MP 689: ITG TEM Boundary Experiment -- Supporting JRT 2012

Session Leader Plans

Entered: Feb 20 2012 02:41:49:733PM

Author: Anne White

*********************************************************** MP 689: ITG TEM Boundary Experiment -- Supporting JRT 2012 Run 1120221 *********************************************************** Background and Motivation: The goal for today is to produce high power L-mode and I-mode plasmas at low density, with dominant electron heating in order to favor dominance of TEM instead of ITG. We hope to collect a complete set of excellent profile data HIREX (Ti, Rotation), TS (Te, ne), GPC, FRCECE (Te) and turbulence data (PCI, FTCI, reflectometer, polarimeter, CECE) for validation studies to investigate how well GYRO and similar codes can reproduce experimental transport levels and turbulence in TEM vs ITG L-mode and I-mode plasmas. This experiment supports the 2012 Joint Research Target. In order to guide the experiment during the run, we will be performing in between shot profile analysis and linear stability analysis with GYRO in order to assess when and whether we cross the boundary from ITG to TEM dominated plasmas. **** Run Plan ****** The basic plan for Tuesday is to begin by reproducing shot 1101014012, and then reproducing shot 1101014006. These two shots represent our TEM and ITG target, respectively. We also must have a locked mode shot as the first shot of the day and last shot of the day (for HIREX calibration). Lots of fluctuation data are requested: PCI, FTCI, reflectometer, polarimeter, and CECE ****** Set Up ******* 1101014012 was an USN plasma, Bt = 5.35T, Ip = 800 kA nl04 = 0.67, with 3 MW RF. 1101014006 was same except for 1 MW RF. We want regular ECDC over night. For first attempt at reproducing shot 1101014012 we want RF request at 4 MW, all antennas at 78 and 80 MHZ, RF on at 0.5 sec and off at 1.5 sec. Cryopump == YES Special gas request: We want Argon puff for HIREX SR. NO NINJA PUFF unless SL okays this! This is critical since density control is very important in the experiment. ********** Shot by Shot Run Plan ********* 1) Reproduce shot 1101014012: Bt = 5.35 T, Ip = 800 kA, nl04 = 0.67 x 10^19 m-2, 4 MW RF power (all antennas at 78,80 MHz) (1 shot) 2) Reproduce locked mode shot 1120216029 for HIREX SR calibration data (1 shot) 3) If step 2) shot went into H-mode, then drop RF power to 3.5 MW, and repeat. If still H-mode then go to 3.0 MW to get a steady L-mode phase (1-2 shots) 4) Assess linear stability for high power L-mode shot from step 2 or step 3. If L-mode is TEM dominant, then repeat for statistics (2-3 shots) and skip to step 9. 5) If step 4) linear stability analysis showed the high power L-mode is ITG dominant, then reduce current to 600 kA and repeat shot ( 1 shot) 6) Assess linear stability for low current high power L-mode shot from step 5. If L-mode is TEM dominant, then repeat for statistics (2-3 shots) and skip to step 9 7) Assess linear stability for high power, low current L-mode shot from step 6. If L-mode is ITG dominant, then keep current at 600 kA but reduce density to nl04 = 0.5 x10-19 m-2 and repeat shot (1 shot) 8) Assess linear stability for low current, low density shot from step 7. If TEM dominant, then repeat for statistics (2-3 shots), if ITG dominant then decide whether to try another reduction in density or current or both and take shot again to get the TEM dominant shot (1-2 shots) 9) In this step we get the low power L-mode that is ITG dominant. Run a shot like 1101014006, a 1 MW shot. Assess linear stability, but we really expect ITG, and don't foresee any surprises here. Repeat this ITG low power shot for statistics (2-3 shots). 10) If steps 1-9 are successful (or if getting clear TEM doniannce in L-mode appears unlikely) then we will transiiton and try running shots with a RF power step at 1.0 sec to cause a transition from L-I mode so we can get data for L-I reduction experiment (5-6 shots). The I-modes may also give interesting TEM dominant data of interest. 11) End the day with another locked mode shot for HIREX Sr calibration ( 1 shot)

Physics Operators Plans

Entered: Feb 21 2012 08:54:12:210AM

Author: Syunichi Shiraiwa

MP 689: ITG TEM Boundary Experiment -- Supporting JRT 2012 SL A. White PO S. Shiraiwa ----------------- Engineering Setup ----------------- Run begins at 09:00 and ends at 17:00 Power systems as on: 1120215001 (5.4 T, 700 kA, USN) Acoil: +Dtop -Dbot -Jtop +Jbot (standard) Hybrid Enabled Gas setup: Fill B-Top with 6 psi D2 Hybrid enabled (PG4) fill B-side lower with 1 psi Ar Hybrid enabled (PG1) leave B-side upper as is Hybrid DISABLED (PG2) fill B-main (C-side) with 40 psi D2 Hybrid enabled (PG3) fill NINJA with 10 psi D2 DISABLED Enable gate-valves and shutters: ECE, VUV, HiREX Sr, Xeus Leave z-bolo shutter as is (should be open) Torvac gatevalve toggle (yes/no): no Boronization(yes/no): no Overnight ECDC (yes/no): yes ICRF(yes/no): yes (4MW all antennas at 78 or 80 MHz) LH(yes/no): no Cryopump (yes/no): yes DNB (yes/no): no Vessel temperature: 35/35/35 ------------------------------ ECDC Parameters ------------------------------ gas and pressure: D2 at 2e-4 Torr sweep: 44/45/103 cm scan: 20/120 s ------------------------------- PO preparation ------------------------------- 1) Reference shot is 1101014012 (USN plasma, Bt = 5.35T, Ip = 800 kA, nl04 = 0.67.) 2) Locked mode for HiReX Sr (1120210004 ?)

Session Leader Summaries

Entered: Feb 21 2012 05:07:21:823PM

Author: Anne White

***************** Summary of Run 1120221 ********************* MP 689 : Boundary between ITG and TEM for JRT 2012 This run was very successful, thank you everyone !! ***************** First Half of Day ********************* We were successful at reproducing target shots of interest, and we used in between shot linear GYRO analysis. The analysis indicates that we did cross the ITG TEM boundary in high power L/I mode plasmas. We were also successful at obtaining core fluctuation measurements with reflectometer and PCI. RF ran beautifully. For notes on in between linear GYRO analysis, please see TRANSPORT entries in logbook. At this point in time, we have two nice pairs of shots that warrant a closer look: 1120221019, 1120221020 are a pair of high/low power shots at 0.7 MA, nl04 ~ 0.55 1120221014, 1120221012 are a pair of high/low power shots at 0.8 MA, nl04 ~ 0.50 and closer looks at the other pairs are needed. Lots of great data !!! ***************** Second Half of Day ********************* We were successful at making several very nice L-I transitions, using power steps and power ramps. Good L-I transition shots to look more at later: 1120221021 1.0 MA, nl04=0.8, power ramp 2.0 -3.5 MW, LI transition? at 0.95 s 1120221023 1.0 MA, nl04 = 0.8, power steps, L-I transition near 1.0 sec 1120221024 1.0 MA, nl04 = 0.8, at 1.0 sec,step RF 2.5MW to 3.5MW , no LI transition 1120221025 1.1 MA, nl04 = 0.8, at 1.0 sec,step RF 2.5MW to 3.5MW ,good!! LI transition shots 26, 27, 28, went back to RF power ramps to really pinpoint transition. But several late RF trips and high radiation early in time make these less clear cases compared to earlier shots. ***************** Last Hour of Day ********************* Ran M. L. Reinke's piggy back shots for fast Ti profiles. Use Ar puffs of 250 ms to increase HIRE SR signal to allow for using very fast time resolution settings. Goal is to resolve Ti during sawtooth cycle. Information obtained during these shots will help to assess Ti vs Te changes suring sawteeth in I-mode, and is relevant/supports the MP 689 transport analysis and profile analysis.

Physics Operator Summaries

Entered: Feb 21 2012 05:19:40:763PM

Author: Syunichi Shiraiwa

Run Summary for 1120221 MP689: ITG TEM Boundary Experiment -- Supporting JRT 2012 SL A. White PO S. Shiraiwa The machine worked pretty well today. We had 34 attempt to make a plasma, and got all start-up as requested. No fizzle. First two shots (#2 and #3) had tungsten injection from upper diverter probes, which caused disruptions. We adjusted RXU to avoid this and after #3, the most of discharge went well until the ramp-down phase, except for #7 and #22 #22 had very early injection causing disruption at 0.02s. We ran out of He for cryo-pump at #28. After #29, the machine was operated without using cryopump to do fast Ti measurement.

Session Leader Comments
Feb 21 2012 08:31:43:957AM	1120221001	Nathan Howard	ITG/TEM Boundary Experiment for Transport Model Validation Shot 1, is a repeat of shot 1101014012 (nl04 =.67, Ip=0.8MA), attempting 4 MW ICRH.
Feb 21 2012 09:15:38:857AM	1120221001	Nathan Howard	Targets for this Shot: -------------------------- nl04=.67 Ip= 0.8 MA Bt= 5.35 PICRH = 3.5 MW Notes: The max power at this time is 3.5 MW.
Feb 21 2012 09:36:13:217AM	1120221001	Nathan Howard	Targets for this Shot was: -------------------------- nl04=.67 Ip= 0.8 MA Bt= 5.35 PICRH = 3.5 MW Notes: The RF appears to be good. The shot disrupted at about .7 seconds via Tungsten injection...Brunner!
Feb 21 2012 10:02:24:090AM	1120221003	Nathan Howard	Targets for this Shot was: -------------------------- nl04=.67 Ip= 0.8 MA Bt= 5.35 PICRH = 3.5 MW Notes: The RF appears to be good. The shot disrupted at about 1.2 seconds. Very hot. Probably an I-mode
Feb 21 2012 10:03:23:203AM	1120221004	Nathan Howard	Targets for this Shot was: -------------------------- nl04=.67 Ip= 0.8 MA Bt= 5.35 PICRH = 3.5 MW Notes: The RF appears to be good. Lasted the whole time...still got a W injection but a good time period from .95 to 1.05 was obtained. Once again, probably an I-modeish plasma. No WCM however.
Feb 21 2012 10:13:46:080AM	1120221005	Nathan Howard	Targets for this Shot was: -------------------------- Locked Mode Calibration shot Notes: The shot looked very nice. Full length....but....no argon. We are repeating this discharge
Feb 21 2012 10:21:17:300AM	1120221006	Nathan Howard	Targets for this Shot was: -------------------------- Locked Mode Calibration shot Notes: The shot looked very nice. Almost full length. Good shot. With Argon
Feb 21 2012 10:33:07:130AM	1120221007	Anne White	shot 6 was a locked mode shot, looked good, had Ar shots 3 and 4 looked like it has a good region to try and process the linear stability analysis Shot 7 Plan: Repeat shot 4 but with changes to density and shape --> raise target density to nl04=0.7 --> move strikepoint (RXU) out a few millimeters Result: disruption, (injection?) near t = 1.0 sec
Feb 21 2012 10:52:17:067AM	1120221008	Anne White	shot 8 plan: keep nl04 request the same, change RXU to move strikepoint out more and request only 1 MW RF input power result: shot ran. next shot: repeat.
Feb 21 2012 11:12:03:283AM	1120221009	Anne White	shot 9 result: good steady 0.8 MA, 1 MW L-mode shot. nl04 = 0.7 Shots 8, 9 are not good steady I-modes for refl, polarimeter and PCI at same density. next shot: plan is to raise nl04 to 0.75 to scan reflectometer channels in core for fluctuation measurements. keep smae Ip=0.8 and RF 1 MW
Feb 21 2012 11:19:18:547AM	1120221010	Anne White	shot 10 plan is to raise nl04 to 0.75 to scan reflectometer channels in core for fluctuation measurements. keep smae Ip=0.8 and RF 1 MW result: shot ran, good fluctuation data, but we did not get higher nl04 as requested. next shot: repeat, but try to adjust nl04 controlto actually get the density up to nl04 0.75 or so
Feb 21 2012 11:37:07:193AM	1120221011	Anne White	shot 11 plan is to raise nl04 to 0.75 to scan reflectometer channels in core for fluctuation measurements. keep smae Ip=0.8 and RF 1 MW TS jitter is going to be corrected with fudge factor by Yunxing so we can get a better sense of refl location coverage in shot 10. result: shot ran, looks good. got higher nl04 later in time. but we have gap in refl coverage it seems. so we will scan down to lower nl04 for next shot and assess core coverage.
Feb 21 2012 11:50:56:817AM	1120221012	Anne White	shot 12 plan is to decrease nl04 to 0.60 to scan reflectometer channels in core for fluctuation measurements. keep smae Ip=0.8 and RF 1 MW note from Yunxing: look at YAG1 for shots 3-11 today, as it has better agreement with TCI line avg density. use the higher ne profile for refl. assessmenets in w_dens result: shot ran, got good nlo04 - 0.6 control. refl 88 GHz near 0.83 cm for next shot, go down in nl04 to 0.55, keep Ip = 0.8 MA and RF at 1 MW
Feb 21 2012 12:10:40:963PM	1120221013	Anne White	shot 13 plan is to decrease nl04 to 0.55to scan reflectometer channels in core for fluctuation measurements. keep same Ip=0.8 and RF 1 MW result: shot ran. good shot. This is last shot in low power density scan. 88 GHz refl chan has clean core fluctuation data. next shot: go back to high power case. Increase RF to 3.5 MW as on shot 3 from today. keep nl04 request same as in shot 13 (nl04 = 0.55)
Feb 21 2012 12:24:43:217PM	1120221014	Anne White	shot 14 Increase RF request to high power (3.5 MW) as in shot 3 Plan is to keep nl04 to 0.55 to get reflectometer channels in core for fluctuation measurements. keep same Ip=0.8. result: shot ran. looks great. next shot: repeat, slight nl04 reduction for refl. scan. try to match nl04 from shot 13 to complete refl. core fluct. data set.
Feb 21 2012 01:04:39:967PM	1120221015	Anne White	shot 15 this was a high power (3.5 MW), 0.8 MA, nl04 ~ 0.5 result: shot ran, had a locked mode next shot: reduce RF power to 2.3 MW and repeat.
Feb 21 2012 01:04:51:643PM	1120221016	Anne White	shot 16 this was a middle power (2.3 MW), 0.8 MA, nl04 ~ 0.5 result: shot ran, looks good. next shot: Repeat of shot 14, but now reduce current to 700 kA
Feb 21 2012 01:06:21:693PM	1120221017	Anne White	shot 17 repeat of shot 14 at lower current this was a high power (3.5 MW), 0.7 MA, nl04 ~ 0.55 shot result: shot ran, got an H-mode early, but tail end of shot is ok. Ar looked low. to be safe, repeat with more Ar next shot: Repeat of shot 17, but with more Ar
Feb 21 2012 01:18:09:810PM	1120221018	Anne White	shot 18 Repeat of shot 17, but with more Ar High power, 3.5 MW, Ip= 0.7 MA, nl04 ~0.55 result: shot ran, had H-mode again. but later in time the shot looks good for analysis. next shot: repeat shot 18, but at lower power, 1.1 MW
Feb 21 2012 01:28:53:010PM	1120221019	Anne White	shot 19 High power, 3.5 MW, Ip= 0.7 MA, nl04 ~0.55 repeat shot 18 result: shot ran, looks good, a high power shot. next shot: Low power (1.1 MW) repeat of 18
Feb 21 2012 01:50:29:180PM	1120221020	Anne White	shot 20 Low power, 1.0 MW, Ip= 0.7 MA, nl04 ~0.55 repeat shot 18 result: shot ran, looks good, a low power companion shot to high power shot 19. At this point in time, we have two key pairs of shots: 1120221019, 1120221020 are a pair of high/low power shots at 0.7 MA, nl04 ~ 0.55 1120221014, 1120221012 are a pair of high/low power shots at 0.8 MA, nl04 ~ 0.50 next shot: Big changes!! Switch to phase two of run plan: dial up 14, but now at higher current Ip = 1.0 MA, higher density, nl04 = 0.8 and with an RF power ramp from 2 MW to 3.5 MW starting at t = 0.5 sec to 1.5 sec. Goal is to make a L-I transition in middle of shot.
Feb 21 2012 02:03:48:220PM	1120221021	Anne White	shot 21 dial up 14, but now at higher current Ip = 1.0 MA, higher density, nl04 = 0.8 and with an RF power ramp from 2 MW to 3.5 MW starting at t = 0.5 sec to 1.5 sec. Goal is to make a L-I transition in middle of shot. result: shot ran. it looks like we have an L-I transition at around 0.95 sec. WCM on edge refl and increase in edge Te next shot: change to a power step at 1.0 sec, 2.6 MW to 3.0MW
Feb 21 2012 02:07:54:753PM	1120221022	Anne White	shot 22 result: looks like something fell in early, 30 ms or so... next shot: plan to repeat attempt at clean L-I with a power step at 1.0 sec, 2.6MW to 3.0MW
Feb 21 2012 02:50:58:693PM	1120221023	Anne White	shot 23 result: looks like I-mode transition near 1.0 sec, but change in profiles not so clear. this was a 1.0 MA shot. next shot: plan to repeat attept at clean L-I with a power step at 1.0 sec, 2.0MW to 3.0MW
Feb 21 2012 02:50:33:703PM	1120221024	Anne White	shot 24 result: good shot, at 1 .1 MA, but looks like it did not have an I-mode transition near 1.0 sec next shot: plan to repeat attept at clean L-I with a power step at 1.0 sec, 2.5MW to 3.5MW at 1.1 MA
Feb 21 2012 03:01:44:407PM	1120221025	Anne White	shot 25 result: good shot, at 1.1 MA, with good (blessed by Amanda)L-I-mode transition near 1.0 sec next shot: plan to repeat attept at clean L-I transiiton with a power ramp from 2.5MW to 3.5MW at 1.1 MA
Feb 21 2012 03:14:59:700PM	1120221026	Anne White	shot 26 result: good shot, at 1.1 MA, a power ramp from 2.5MW to 3.5MW. nl04 = 0.8 but RF trips later in timeoccur near the L-I transition time... next shot: new RF ramp from 3.0-3.5 MW, otherwise a repeat.
Feb 21 2012 03:38:06:337PM	1120221027	Anne White	shot 27 result: shot ran at 1.1 MA, a power ramp from 3.0MW to 3.5MW. nl04 = 0.8 but doesn't quite get into I-mode next shot: nl04 = 0.9, new RF ramp from 3.0- max power MW
Feb 21 2012 04:01:03:130PM	1120221028	Anne White	shot 28 result: shot ran, almost 4 MW RF at end os ramp next shot: locked mode shot for hirex sr calibration
Feb 21 2012 04:02:18:020PM	1120221029	Anne White	shot 29 result: shot ran, good locked mode shot for HIREX SR calibration next shot: gas setup for fast Ti measurements (MLR)
Feb 21 2012 04:14:20:250PM	1120221030	Matt Reinke	Trying to get I-modes with high time resolution Ti profiles. Repeating 021 but with flat 3 MW ICRF (should be I-mode ish). Increase HIREXSR time resolution to 200 Hz frame rate (3 ms dead, 2 ms on) Increase early Ar puff to 200 ms from 150 ms. RESULT: Good RF trace, early injection but 0.95-1.45 should have fairly repeatable sawteeth. They have multiple crashes, though. NEXT: Had H-like DAQ problems. Chi thinks it's fixed. Repeat, increasing Ar.
Feb 21 2012 04:27:10:543PM	1120221031	Matt Reinke	Repeating 030, hopefully fixing w/ full HIREXSR system. Slightly increased Ar and added NINJA (D2) at 1.3 seconds for edge CXRS (inner and outer). RESULT: excellent shot! got both H-like and He-like. NINJA puff changes nl04 a bit. ICRF was at 3 MW, but J-ANT trace is lost in the ether. NEXT: moving NINJA to 1.4 seconds, increase Ip to 1.1 MA and repeating
Feb 21 2012 04:38:12:947PM	1120221032	Matt Reinke	Increasing Ip to 1.1 MA and repeating RESULT: again lost the J-ANT trace, but got the power input. Very repeatable Te based on the Thomson aliasing! NEXT: increase Ip to 1.2 MA and repeat
Feb 21 2012 04:59:35:403PM	1120221033	Matt Reinke	repeat discharge but at 1.2 MA. RESULT: great shot, all power traces showing up. After the NINJA the nl04 kind of runs away into the rampdown. Disruption at 1.0 MA :( NEXT: repeat at 0.9 MA
Feb 21 2012 05:10:00:823PM	1120221034	Matt Reinke	repeat shot but at 0.9 MA. Combination of 5 o'clock and post-disruption fizzle make my prospects grim... RESULT: sweet! got the 0.9 MA shot. This should make a good scan of the sawtooth inversion radius with fast Ti data! Chi informs me we lost H-like data on this shot. NEXT: end of run

Physics Operator Comments
Feb 21 2012 08:47:38:000AM	1120221001	Syunichi Shiraiwa	Loaded 1101014012. Update control parameters in seg 3 Zerod seg 2 (Thank you, Steve.) Enable B-side lower. Ar (pg1) from 0.3s to 0.4s First shot is gas test. Loaded seg 1 from 1120207001
Feb 21 2012 09:24:30:440AM	1120221002	Syunichi Shiraiwa	Enable B-side lower. Ar (pg1) from 0.3s to 0.4s Loaded seg 1 from 1120207002 (cryopump startup) .... debuging E-port antenna (08:51).... .... done (09:16) .... ICRF from 0.5 to 1.5 s with a small ramp Result: disrutption at 0.7 due to injection?
Feb 21 2012 09:48:53:297AM	1120221003	Syunichi Shiraiwa	Setting for this shot moved RXU out by 0.5cm turn off density integral gain. (from 2 to 0) request higher density ramp-up Result: Disrupted at 1.1s Upper div probes are receiving heat, may consider X point sweep.
Feb 21 2012 09:58:49:400AM	1120221004	Syunichi Shiraiwa	Setting for this shot Increase density request to 0.65 Results: The same density as the previous shot. Next shot will be locked mode calibration using 1120216029
Feb 21 2012 10:13:57:680AM	1120221005	Syunichi Shiraiwa	Setting for this shot Locked mode calibration. Load 1120216029 Set 3 to Seg 2. Turn on Seg 2. Result: PCS piezo-chopper setting for gas_1 and h-bot were not correct
Feb 21 2012 10:24:30:927AM	1120221006	Syunichi Shiraiwa	Locked mode, certified by Matt. Next: Move back to #4 (= turn on seg. 3) Move RXU outward by 3mm Increase density request to 0.7e20
Feb 21 2012 10:42:42:743AM	1120221007	Syunichi Shiraiwa	Disrupted at 1s Next : Moves RXU by 3mm outward.
Feb 21 2012 10:52:33:623AM	1120221008	Syunichi Shiraiwa	The same setting as shot 7 except for ICRF power (1MW for this shot) and RXU request. Good shot. Flat density, RF power,
Feb 21 2012 11:07:34:657AM	1120221009	Syunichi Shiraiwa	Repeat of #8 Next: Increase the density to 0.75e20
Feb 21 2012 11:19:25:153AM	1120221010	Syunichi Shiraiwa	Good shot, but density did not increase much Next: Turn on int gain after 0.5 (set to be 1)
Feb 21 2012 11:37:10:797AM	1120221011	Syunichi Shiraiwa	Density shows gradual increase from 0.7 to 0.75 during the flat top. Next: decrease the density request to 0.6e20 also move int gain starts from 0.5 to 0.3s
Feb 21 2012 11:56:33:870AM	1120221012	Syunichi Shiraiwa	Good shot at ne04=0.6e20 Next: decrease the density to 0.5e20
Feb 21 2012 12:00:32:993PM	1120221013	Syunichi Shiraiwa	Good shot at 0.55e20 Next: The same as the previous shot as for PCS. RF power will be increase to 3.5-4MW.
Feb 21 2012 12:17:42:307PM	1120221014	Syunichi Shiraiwa	Good shot at RF=3.5MW. Next: adjust the density program to match it as shot 13.
Feb 21 2012 12:33:44:310PM	1120221015	Syunichi Shiraiwa	Disrupted during the ramp-down Next: Will take the shot at P_RF=2.25MW
Feb 21 2012 12:50:11:607PM	1120221016	Syunichi Shiraiwa	Full length plasma at ne04=0.52e20 Next: reload shot 14 and decrease the ip to 700kA.
Feb 21 2012 01:06:10:813PM	1120221017	Syunichi Shiraiwa	Full length plasma. Short period of H-mode? Next: Repeat shot 17 with another pg1 (Ar) pulse at 0.9 s (50ms)
Feb 21 2012 01:10:32:100PM	1120221018	Syunichi Shiraiwa	Full length plasma
Feb 21 2012 01:28:13:237PM	1120221019	Syunichi Shiraiwa	Good shot. The RF power was the same as shot 18. Next: low power shot.
Feb 21 2012 01:37:27:180PM	1120221020	Syunichi Shiraiwa	Full length plasma Next: Ip 1MA ne 0.8e20 RF power 2->3.5MW power ramp.
Feb 21 2012 02:02:23:797PM	1120221021	Syunichi Shiraiwa	Full length plasma, we got density and Ip as requested Next: the same as shot 21 but stairway shape of ICRF power.
Feb 21 2012 02:05:57:253PM	1120221022	Syunichi Shiraiwa	Very early injection at 0.03 s Next: repeat
Feb 21 2012 04:06:30:913PM	1120221023	Syunichi Shiraiwa	Got I-mode Next: Increase Ip to 1.1MA
Feb 21 2012 04:06:57:583PM	1120221025	Syunichi Shiraiwa	Full length plasma Next: No change in PCS
Feb 21 2012 04:05:58:790PM	1120221026	Syunichi Shiraiwa	Full length plasma Next: No change in PCS. Modify ICRF power trace
Feb 21 2012 04:05:40:347PM	1120221027	Syunichi Shiraiwa	Full length shot Next: Increase density to 0.9e20 Change RF trace
Feb 21 2012 04:05:05:633PM	1120221028	Syunichi Shiraiwa	Full length plasma End of cryopump for today.
Feb 21 2012 04:04:38:720PM	1120221029	Syunichi Shiraiwa	Locked mode calibration Load entire PCS setting from 1120216029 Next: reload shot 21, but with no-cryopump start-up increase Ar puff to 200ms
Feb 21 2012 04:16:00:257PM	1120221030	Syunichi Shiraiwa	Full length plasma. Next: increase Ar to 250ms. ninja will be turn-on
Feb 21 2012 04:27:30:137PM	1120221031	Syunichi Shiraiwa	Full length plasma. Little bump during the start-up again Next: increase Ip to 1.1MA
Feb 21 2012 04:41:47:460PM	1120221032	Syunichi Shiraiwa	Good shot Next: 1.2MA
Feb 21 2012 05:00:07:263PM	1120221033	Syunichi Shiraiwa	Disrupted at 1.6 s, due to Ninja...? Next: Ip = 900kA Will be the last shot.

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	08:44:45:473AM	Test	Ok	Gas Test
2	09:20:57:480AM	Plasma	Ok
3	09:38:21:203AM	Plasma	Ok
4	09:52:10:193AM	Plasma	Ok
5	10:04:47:633AM	Plasma	Ok
6	10:17:26:320AM	Plasma	Ok
7	10:30:08:490AM	Plasma	Ok
8	10:44:36:570AM	Plasma	Ok
9	10:58:34:153AM	Plasma	Ok
10	11:11:52:973AM	Plasma	Ok
11	11:25:24:637AM	Plasma	Ok
12	11:41:08:637AM	Plasma	Ok
13	11:55:54:347AM	Plasma	Ok
14	12:09:15:843PM	Plasma	Ok
15	12:22:12:133PM	Plasma	Ok
16	12:40:40:500PM	Plasma	Ok
17	12:54:41:740PM	Plasma	Ok
18	01:07:34:937PM	Plasma	Ok
19	01:20:11:967PM	Plasma	Ok
20	01:32:58:200PM	Plasma	Ok
21	01:48:41:473PM	Plasma	Ok
22	02:01:32:883PM	Plasma	Ok
23	02:14:43:663PM	Plasma	Ok
24	02:30:44:737PM	Plasma	Ok
25	02:49:24:153PM	Plasma	Ok
26	03:06:52:293PM	Plasma	Ok
27	03:22:58:163PM	Plasma	Ok
28	03:38:09:380PM	Plasma	Ok
29	03:52:00:833PM	Plasma	Ok
30	04:04:47:733PM	Plasma	Ok
31	04:17:24:177PM	Plasma	Ok
32	04:30:10:443PM	Plasma	Ok
33	04:51:34:493PM	Plasma	Ok
34	05:04:13:060PM	Plasma	Ok

System Availability

Feb 21 2012 08:44:17:533AM

System Available Comment Availability Changed Owner Description Who Can Change Active MHD no secured - tagged out Jun 02 2008 11:03AM (sears) Joe Snipes Active MHD Antenna golfit BES yes BES system is online Nov 22 2011 02:21PM (bespam) Bill Rowan Beam Emission Spectroscopy bespam,liao,rowan Bolometers yes Midplane and LEDGE-AX diodes functioning properly. Midplane bolometers working and calibrated. LEDGE/DIV bolometers working, but toaster calibration not yet complete. Jan 23 2012 12:02PM (mlreinke) Matt Reinke Bolometers hutch,mlreinke Boronization no Bottle Removed. System has been tested and will be ready once bottle is installed Jan 09 2012 06:32AM (dekow) Jim Irby Boronization dekow,irby CECE no   Jan 06 2012 03:48PM  Anne White Correlation ECE whitea CNPA yes Multiple channel CNPA available, no safety risk for in-vessel access Apr 14 2011 12:01PM (parker) Ron Parker Compact Neutral Analyzer parker Cryopump - Upper Divertor yes Operational. He level meter not working on 500L dewar. Frank will take manual readings. Jan 11 2012 11:46AM (labombard) Brian LaBombard Upper Divertor Cryopump dekow,irby,labombard CXRS yes core-CXRS system is online Nov 22 2011 02:21PM (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 11:44AM (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 01 2009 09:45AM (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 05 2011 02:41PM (marmar) Earl Marmar Visible Bremsstrahlung Imaging marmar Disruption Mitigation no gas jet valve disabled on 2011/04/13 Apr 13 2011 02:04PM (granetz) Robert Granetz Gas Jet granetz,whyte Divertor IR no   Mar 06 2007 10:50AM  Glen Wurden Divertor IR Digital Video gwurden,terry Divertor IR Spectroscopy no   Mar 06 2007 10:51AM  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 01 2012 01:24PM (golynyk) Geoff Olynyk Set of six AXUV diodes in a toroidal array of midplane wall boxes. golynyk,granetz,mlreinke,whyte DNB yes   Dec 01 2011 11:46AM (granetz) Robert Granetz Diagnostic Neutral Beam dterry,granetz,mochung ECDC yes Operational as of 11/19/11 Nov 22 2011 03:01PM (irby) Jim Irby 2.45 GHz, 3 kW, discharge cleaning system dekow,irby,pfeiffer FRC-ECE no Power off to RF and IF sections- Power on to DA Apr 11 2011 02:54PM (phillips) Perry Phillips Heterodyne ECE-32 channels bespam,liao,phillips,rowan,whitea FTCI no   Jan 06 2012 04:36PM  Jim Irby Fast two-color interferometer irby G-Side Ratiomatic yes   Dec 02 2011 12:24PM (toland) Brian LaBombard G-side ratiomatic ionization gauge labombard,toland Glow Discharge no Power supply unplugged and redtagged, HV cables removed Apr 14 2011 08:03AM (dekow) Jim Irby 1 kV, 5 A, glow discharge system dekow,dterry,irby GPC yes Using new preamps. Nov 30 2011 07:51AM (hubbard) Amanda Hubbard ECE Polychromater hubbard GPC2 yes Dewar cold. Nov 21 2011 09:55AM (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 01 2009 09:45AM (terry) Jim Terry Gas Puff Imaging terry,zweben H/D yes system is functional and taking data Dec 05 2011 02:42PM (marmar) Earl Marmar H/D Ratio marmar HEAT yes   Jan 09 2012 06:32AM (dekow) Gary Dekow - Machine Heaters - burke,dekow Hirex Jr yes Hirex-Jr has been installed Jun 28 2010 03:36PM (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 06 2011 08:21AM (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 12:05PM (parker) Ron Parker Hard X-Ray Array faust,parker,schmidt ICRF D-Antenna no secured Apr 14 2011 08:55AM (wukitch) Steve Wukitch D-port antenna wukitch,ylin ICRF E-Antenna no secured Apr 14 2011 08:55AM (wukitch) Steve Wukitch E-port antenna wukitch,ylin ICRF J-Antenna no secured Apr 14 2011 08:56AM (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 11:46AM (blip) Bruce Lipshultz Measurement of recycling light and impurity source rates at multiple surfaces around the tokamak blip,miller Laser Blow-Off yes Operational and tested Jan 06 2012 03:50PM (g) Martin Greenwald Impurity Injection System g,nthoward Lower Hybrid no LH HV Breaker Opened and Tagged, TPS Upgrade Underway Nov 10 2011 03:51PM (dterry) Ron Parker Lower Hybrid dterry,parker,wallaceg Lower Hybrid Reflectometer no off Apr 15 2011 08:24AM (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. Jan 23 2012 12:03PM (mlreinke) Matthew L. Reinke Long Wavelength Extreme Ultraviolet Spectrometer markchil,mlreinke LPI no Beam line removed May 30 2008 02:09PM (bose) Earl Marmar Lithium Pellet Injector bose,marmar Ly-alpha yes Midplane Lyman-a and LEDGE-LY working normally. New B-PORT Lyman (BPLY) still being debugged. Jan 23 2012 12:04PM (mlreinke) Matt Reinke Lyman alpha cameras faustian,labombard,mlreinke Magnetics yes   Dec 01 2011 11:51AM (g) Robert Granetz Bp coils and flux loops for equilibrium control granetz,wolfe McPherson no **vacuum system problem*** McPherson viewing the 10-14 nm region for molybdenum monitoring. It's days are numbered as LoWEUS has demonstrated superiority. Jan 31 2012 08:15AM (mlreinke) Jim Terry VUV Spectrometer markchil,mlreinke,terry Michelson yes Front end at 4.5e-8 T. Reduced speed for initial operation. Nov 30 2011 07:51AM (hubbard) Amanda Hubbard ECE Te Profiles hubbard,schmidt MKS yes   Dec 02 2011 12:27PM (toland) Brian LaBombard Baratron pressure gauges labombard,toland MLP no System is in edge lab. Version 2 drivers ready to test. Needs a student to help work on it. Jul 14 2009 09:20PM (labombard) Brian LaBombard Mirror Langmuir Probe Electronics System labombard MSE no 1/3/2011: push-pull mechanism broken. MSE inoperative Jan 03 2012 11:47AM (sscott) Steve Scott Motional Stark Effect jinseok,sscott Neutrons yes High voltage is on. We're ready for plasma. Nov 21 2011 12:58PM (fiore) Catherine Fiore Neutron Detectors fiore Neuts and Hards yes All detectors Powered On --- Waiting for neutrons for calibration Nov 22 2011 01:05PM (irby) Jim Irby X-Ray/Neutron Detectors at K-Hor irby NINJA yes C-bottom and new F-bottom system ready. Dec 02 2011 12:28PM (toland) Brian LaBombard NINJA gas puff labombard,terry,toland PCI yes Operational. Nov 30 2011 12:45PM (ntsujii) Miklos Porkolab Phase Contrast Imaging emd,ennever,ntsujii,porkolab Penning Gauges yes Operational. High voltage comes on during INIT and off at RECOOL. Dec 09 2011 09:48AM (labombard) Brian LaBombard Penning Ionization Gauges labombard Plasma TV yes WIDE1, WIDE2 (chan 33), DANT, JANT and DIV are operational. Jul 01 2009 09:46AM (terry) Jim Terry Video of plasma via several cameras dekow,irby,terry,wolfe Polarimeter yes 3 chords operational but with high noise level Jan 06 2012 04:22PM (irby) Jim Irby C-Mod Polarimeter irby Power - Alternator Air Switch yes   Jan 09 2012 06:33AM (dekow) Gary Dekow feeds all the other supplies cochran,dekow,dterry,irby Power - PEI yes   Jan 09 2012 06:33AM (dekow) Gary Dekow PEI System cochran,dekow,dterry,irby Power - TMX yes   Jan 09 2012 06:33AM (dekow) Gary Dekow Ef2s,. EFCs and A-Coils byford,cochran,dekow,dterry,irby Power Systems yes   Jan 09 2012 06:33AM (dekow) Jim Irby C-Mod Magnet Supplies byford,cochran,dekow,dterry,irby Probe Array - ISD yes Operational, except for probe #1 (open circuit) and probe #16 (not installed). Dec 09 2011 09:50AM (labombard) Brian Labombard Inner Lower Divertor Probe Array labombard Probe Array - LH yes Operational, except for bottom-D probe (open circuit). Dec 09 2011 09:52AM (labombard) Brian LaBombard Lower Hybrid Probe Array labombard Probe Array - OSD yes F-divertor ok. J-divertor ok, except for JDIV_06 which is shorted out. Dec 09 2011 09:54AM (labombard) Brian LaBombard Outer Lower Divertor Probe Array (F and J) labombard Probe Array - UDIV yes Operational except for probes #4, 5 and 13 (open) Dec 09 2011 09:56AM (labombard) Brian LaBombard Upper Divertor Probe Array labombard Reflectometer yes As of 1120105xxx, all channels are connected Jan 05 2012 09:14AM (dominguez) Earl Marmar Reflectometer dominguez,marmar Scanning Probe - ASP yes Ion Sensitive Probe head installed. Testing in piggy-back mode. Dec 20 2011 12:33PM (labombard) Brian LaBombard A-Port Scanning Probe labombard Scanning Probe - FSP yes Operational. Dec 09 2011 09:57AM (labombard) Brian LaBombard F-Port Scanning Probe labombard Scanning Probe - WASP yes A-port WASP is operational. K-port WASP is dead (all probes melted together). Dec 09 2011 09:58AM (labombard) Brian LaBombard Inner Wall Scanning Probe labombard,nsmick Shoelace Antenna yes Fixed frequency operation available (100kHz) at moderate power (< 0.5kW). Otherwise in receiver mode. Jan 11 2012 11:50AM (labombard) Brian LaBombard High-k active MHD antenna, for QCM, WCM studies golfit,labombard SOL reflectometer yes c-port waveguides operational, h-port waveguides are not. Nov 29 2011 12:04PM (cornwall) Cornwall Lau SOL reflectometer cornwall,wukitch,ylin Sparker yes New Type II sparker replaced Type I on 11/17/2011 Nov 23 2011 08:53AM (irby) Jim Irby Field Emission Preionization for C-Mod dekow,irby,parkin Surface Science Station no SSS is up to air, no safety issues Apr 14 2011 12:06PM (ochoukov) Bruce Lipschultz Radially scanning probe located on K-port blip,ochoukov TCI yes TCI Operational. Density feedback operational. Nov 10 2011 11:47AM (irby) Jim Irby Two-Color Interferometer irby,murray TS - Core yes Operating with two 50Hz lasers, precise density calibration still required. Feb 03 2012 04:04AM (jwhughes) Jerry Hughes Core Thomson scattering jrwalk,jwhughes,yma TS - Edge yes System taking data. Requires calibration. Feb 03 2012 04:05AM (jwhughes) Jerry Hughes Millimeter resolution edge Thomson scattering jrwalk,jwhughes,yma Vispec no 350 and 670 nm, 4 spatial channels Nov 28 2007 09:58AM (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. Jan 23 2012 12:13PM (mlreinke) Matt Reinke X-ray Extended Ultraviolet Spectrometer markchil,mlreinke XTOMO yes ARRAY1->4 working normally, ARRAY5 (new core view) working but spatial calibration issues not yet resolved Jan 23 2012 12:13PM (mlreinke) Robert Granetz X-Ray Tomography faustian,granetz,mlreinke