Miniproposals

Miniproposal: 696 Date Filed: 5/4/2012 Title: Continued investigations of dilution effects on turbulence and transport in low density ohmic plasma First Author: Paul Ennever Session Leader: Paul Ennever (shots 1-29)

Engineering Operator Run Comment

MP696 dilution effects on turbulence and transport SL Paul Ennever PO Sy

Session Leader Plans

Entered: Jun 14 2012 11:49:31:570AM

Author: Paul Ennever

MP696 "Continued investigations of dilution effects on turbulence and transport in low density ohmic plasma" The purpose of this run is to investigate the effects of dilution in ohmic plasmas. We will run an ohmic density scan from nl04 = 0.7 to 0.3 x 10^20 m^-2 without seeding at the beginning of the day and then scan again nl04 = 0.3 to 0.7 x 10^20 m^-2 with Nitrogen seeding, and then if time remains repeat some densities with Argon seeding. This run is based on 1120210XXX and the latter half of 1120222XXX. This run repeats those shots at higher current (1.0 MA instead of 800 kA) All Parts ============== Working Gas: D2 Equilibrium: based on 1100226015 (USN, 5.4T, 1.0 MA) NINJA: 10 PSI He @ 1.35s for GPI H-Bot: 1 psi Ar puff at 0.4s for 75ms with 100V for HIREX-Sr, will increase pressure to 2 psi when done with N2 seeding and change voltage and time B-Lower: 15 psi N2, voltages variable Cryopump: On when seeding, off when not seeding DNB: On for boron CXRS Detailed Sequence ================== Part 0: HIREXSR locked mode calibration Based on 1120607004 (most recent successful locked mode calibration) Wait for successful shot before doing this Part 1: nl04 = 0.7, unseeded 1-2 shots (1 good) at nl04 = 0.7 x 10^20 m^-2 without seeding Part 2: nl04 = 0.6, unseeded 1-2 shots (1 good) at nl04 = 0.6 x 10^20 m^-2 without seeding Part 3: nl04 = 0.5, unseeded 1-2 shots (1 good) at nl04 = 0.5 x 10^20 m^-2 without seeding Part 4: nl04 = 0.4, unseeded 1-2 shots (1 good) at nl04 = 0.4 x 10^20 m^-2 without seeding Part 5: nl04 = 0.3, unseeded 1-2 shots (1 good) at nl04 = 0.3 x 10^20 m^-2 without seeding This can be skipped if there are too many runaways Turn Cryopump ON for remaining parts Part 6: nl04 = 0.3, Nitrogen seeded 2-3 shots (1 good) at nl04 = 0.3 x 10^20 m^-2 with Nitrogen seeding Start with 70V from 0.7s to 1.3s on B-lower If part 5 has too many runaways, can skip this part Part 7: nl04 = 0.4, Nitrogen seeded 2-3 shots (1 good) at nl04 = 0.4 x 10^20 m^-2 with Nitrogen seeding Start with 60V from 0.7s to 1.3s on B-lower Part 8: nl04 = 0.5, Nitrogen seeded 2-3 shots (1 good) at nl04 = 0.5 x 10^20 m^-2 with Nitrogen seeding Start with 50V from 0.7s to 1.3s on B-lower Part 9: nl04 = 0.6, Nitrogen seeded 2-3 shots (1 good) at nl04 = 0.6 x 10^20 m^-2 with Nitrogen seeding Start with 40V from 0.7s to 1.3s on B-lower Part 10: nl04 = 0.7, Nitrogen seeded 2-3 shots (1 good) at nl04 = 0.7 x 10^20 m^-2 with Nitrogen seeding Start with 30V from 0.7s to 1.3s on B-lower If the end of the run is near, prioritize the nl04=0.6-0.4 parts of the next section. Increase H-Bot pressure to 2 psi. Part 11: nl04 = 0.7, Argon seeded 2-3 shots (1 good) at nl04 = 0.7 x 10^20 m^-2 with Argon seeding Start with 55V from 0.7s to 1.0s on H-Bot Part 12: nl04 = 0.6, Argon seeded 2-3 shots (1 good) at nl04 = 0.6 x 10^20 m^-2 with Argon seeding Start with 65V from 0.7s to 1.0s on H-Bot Part 13: nl04 = 0.5, Argon seeded 2-3 shots (1 good) at nl04 = 0.5 x 10^20 m^-2 with Argon seeding Start with 75V from 0.7s to 1.0s on H-Bot Part 14: nl04 = 0.4, Argon seeded 2-3 shots (1 good) at nl04 = 0.4 x 10^20 m^-2 with Argon seeding Start with 85V from 0.7s to 1.0s on H-Bot Part 15: nl04 = 0.3, Argon seeded 2-3 shots (1 good) at nl04 = 0.3 x 10^20 m^-2 with Argon seeding Start with 100V from 0.7s to 1.0s on H-Bot Contingencies: If Thomson data looks like it needs an ECE cutoff calibration, do that at the end of the day. If HIREX is drifting, do another locked-mode calibration shot at the end of the day. If Argon seeding isn't working, focus on near-transition densities and do finer density scan.

Physics Operators Plans

Entered: Jun 15 2012 08:50:43:763AM

Author: Syunichi Shiraiwa

MP696 "Continued investigations of dilution effects on turbulence and transport in low density ohmic plasma" SL: P. Ennever PO: S. Shiraiwa ----------------- Engineering Setup ----------------- Run begins at 09:00 and ends at 17:00 Power systems as on: 1120613028 (USN, 5.4T, 1.1MA) 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 15 psi N2 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 NINJA with 10 psi He DISABLED fill H-bot lower with 1 psi Ar Hybrid DISABLED (PG5) Enable gate-valves and shutters: ECE, VUV, HiREX Sr, Xeus/LoWEUS Leave z-bolo shutter as is (should be open) Torvac gatevalve toggle (yes/no): no Boronization(yes/no): no Overnight ECDC (yes/no): on ICRF(yes/no): no LH(yes/no): no Cryopump (yes/no): on DNB (yes/no): on Vessel temperature: 35/35/35 ------------------------------ ECDC Parameters (if requested) ------------------------------ gas and pressure: D2 at 2e-4 Torr sweep: 44/45/103 cm scan: 20/120 s

Session Leader Summaries

Entered: Jun 21 2012 03:47:08:550PM

Author: Paul Ennever

The run got off to a shaky start, but once we moved away from the lower densities and to the higher ones we had better luck. An unseeded ohmic scan was done from nl04 = 0.82 to 0.4 x 10^20 m^-2 and the seeded shots were done from nl04 = 0.47 to 0.80. Rotation reversals were observed after nitrogen seeding on discharges 25-27 which were slightly above the transition density. A summary of the shots is presented below: 11206150XX sec 10^20 m^-2 V keV 100-500 kHz Shot | Plan | Time Window | nl04 | PG1 | Te0 | PCI Avg |Zneo| ========================================================================= 01 |0.7, us | No Power ------------------------------------------------------------------------- 02 |0.7, us | Fizzle ------------------------------------------------------------------------- 03 |0.7, us | Fizzle ------------------------------------------------------------------------- 04 |0.7, us | [0.8, 1.35] | 0.65 | 0 | 2.0 | 3.2 |1.7 | Bt=5.2T, low Ar ------------------------------------------------------------------------- 05 |0.7, us | [0.85, 1.35] | 0.66 | 0 | 2.1 | 3.0 |2.1 | Bt=5.2T ------------------------------------------------------------------------- 06 |0.6, us | [0.75, 1.35] | 0.55 | 0 | 2.3 | 2.1 |2.4 | Bt=5.2T ------------------------------------------------------------------------- 07 |Locked | ------------------------------------------------------------------------- 08 |Locked | Fizzle ------------------------------------------------------------------------- 09 |Locked | Good L.M | | | | | | ------------------------------------------------------------------------- 10 |0.5, us | [0.8, 1.4] | 0.43 | 0 | 2.2 | 1.5 | ? | Low Ar, locked ------------------------------------------------------------------------------------------------------------- 11 |0.5, us | Fizzle ------------------------------------------------------------------------------------------------------------- 12 |0.5, us | [0.82, 1.3] | 0.46 | 0 | 2.6 | 1.3 | ? | No Thomson ------------------------------------------------------------------------------------------------------------- 13 |0.4, us | [0.9, 1.2] | 0.40 | 0 | 3.1 | 0.9 | 4.1| disruption @ 1.25s ------------------------------------------------------------------------------------------------------------- 14 |0.5, us | Fizzle ------------------------------------------------------------------------------------------------------------- 15 |0.5, us | [0.9, 1.1] | 0.45 | 0 | 2.6 | 1.25 | 3.5| No DNB ------------------------------------------------------------------------------------------------------------- 16 |0.4, sd | disrup.@ 0.7| 0.35 | 50 ------------------------------------------------------------------------------------------------------------- 17 |0.5, sd | [1.0, 1.3] | 0.47 | 50 | 2.7 | 1.1 | 3.6| Wavelength Calibration off slightly for N2 ------------------------------------------------------------------------------------------------------------- 18 |0.5, sd | disrupted at 0.74s | 80 ------------------------------------------------------------------------------------------------------------- 19 |0.55,sd | disrupted at 0.85s | 80 ------------------------------------------------------------------------------------------------------------- 20 |0.55, sd| disrupted at 0.85s | 60 ------------------------------------------------------------------------------------------------------------- 21 |0.55, sd| [1.0, 1.3] | 0.45 | 45 | 2.0 | | 2.0| locks @ 0.8s ------------------------------------------------------------------------------------------------------------- 22 |0.65, sd| [1.15, 1.35] | 0.56 | 45 | 2.6 | | 2.8| ------------------------------------------------------------------------------------------------------------- 23 |0.65, sd| [1.0, 1.3] | 0.60 | 55 | 2.6 | 1.75 | 2.9| ------------------------------------------------------------------------------------------------------------- 24 |0.75, sd| [1.15, 1.35] | 0.65 | 55 | 2.3 | 2.05 | ?| Need to reload Thomson ------------------------------------------------------------------------------------------------------------- 25 |0.85, sd| [1.0, 1.3] | 0.75 | 55 | 2.3 | 2.7 | 2.26| Rotation Reversal @ 0.9s ------------------------------------------------------------------------------------------------------------- 26 |0.90, sd| [1.0, 1.3] | 0.80 | 60 | 2.2 | 2.7 | 2.15| Rotation Reversal @ 0.9s ------------------------------------------------------------------------------------------------------------- 27 |0.90, sd| [1.0, 1.3] | 0.80 | 70 | 2.2 | 2.7 | 2.3| Rotation Reversal @ 1.0s PCI ran out of LN2, so signal is very low ------------------------------------------------------------------------------------------------------------- 28 |0.90, us| [0.8, 1.0] | 0.82 | 0 | 2.0 | 3.5 | | Need to reload Thomson ------------------------------------------------------------------------------------------------------------- 29 |0.80, us| [0.8, 1.0] | 0.73 | 0 | 2.1 | 2.7 | 2.0| -------------------------------------------------------------------------------------------------------------

Physics Operator Summaries

Session Leader Comments
Jun 15 2012 09:15:02:743AM	1120615001	Paul Ennever	Requested: nl04 = 0.7, unseeded Results: No power shot nl04 = x 10^20 m^-2 nD/ne = ave_Z = Te0 = keV next: Repeat
Jun 15 2012 09:26:20:220AM	1120615002	Paul Ennever	Requested: nl04 = 0.7, unseeded Results: Fizzle nl04 = x 10^20 m^-2 nD/ne = ave_Z = Te0 = keV next: Repeat
Jun 15 2012 09:45:15:220AM	1120615003	Paul Ennever	Requested: nl04 = 0.7, unseeded Results: Fizzle nl04 = x 10^20 m^-2 nD/ne = ave_Z = Te0 = keV next: Turn on cryopump to fix some issues, but attempt repeat otherwise
Jun 15 2012 10:32:00:287AM	1120615004	Paul Ennever	Requested: nl04 = 0.7, unseeded Results: nl04 = 0.65 x 10^20 m^-2 nD/ne = 94% ave_Z = 6.8 Zbright = 1.7 Zneo = 2.2 Te0 = 2.0 keV Argon a little low next: Increase Argon puff, repeat
Jun 15 2012 11:40:15:357AM	1120615005	Paul Ennever	Requested: nl04 = 0.7, unseeded Results: nl04 = 0.66 x 10^20 m^-2 nD/ne = 94% Zbright = 1.5 Zneo = 2.0 ave_Z = 7.5 Te0 = 2.1 keV next: Move on to Part 2: nl04 = 0.6, unseeded
Jun 15 2012 10:29:16:777AM	1120615006	Paul Ennever	Requested: nl04 = 0.6, unseeded Results: nl04 = 0.55 x 10^20 m^-2 nD/ne = 94% Zbright = 1.5 Zneo = 2.4 ave_Z = 7.3 Te0 = 2.3 keV next: Move on to Part 0: Locked Mode Shot
Jun 15 2012 10:41:21:503AM	1120615007	Paul Ennever	Requested: Locked Mode Results: nl04 = x 10^20 m^-2 nD/ne = % Zbright = Zneo = ave_Z = Te0 = keV Wrong Current? next: Try again
Jun 15 2012 10:51:37:743AM	1120615008	Paul Ennever	Requested: Locked Mode Results: nl04 = x 10^20 m^-2 nD/ne = % Zbright = Zneo = ave_Z = Te0 = keV Fizzle next: Try again
Jun 15 2012 11:07:08:750AM	1120615009	Paul Ennever	Requested: Locked Mode Results: nl04 = x 10^20 m^-2 nD/ne = % Zbright = Zneo = ave_Z = Te0 = keV Good Locked Mode next: Move on to Part 3: nl04 = 0.5, unseeded
Jun 15 2012 11:29:01:170AM	1120615010	Paul Ennever	Requested: nl04 = 0.5, unseeded Results: nl04 = 0.43 x 10^20 m^-2 nD/ne = 93% Zbright = 1.5 Zneo = ave_Z = 6.9 Te0 = 2.2 keV Needed More Argon next: Re-do with more Argon
Jun 15 2012 11:36:21:783AM	1120615011	Paul Ennever	Requested: nl04 = 0.5, unseeded Results: Fizzle nl04 = 0.43 x 10^20 m^-2 nD/ne = 93% Zbright = 1.5 Zneo = ave_Z = 6.9 Te0 = 2.2 keV next: Re-do
Jun 15 2012 12:02:23:207PM	1120615012	Paul Ennever	Requested: nl04 = 0.5, unseeded Results: nl04 = 0.46 x 10^20 m^-2 nD/ne = 85% Zbright = 2.2 Zneo = ave_Z = 6.5 Te0 = 2.6 keV No Thomson? next: Repeat if there was no Thomson, move on to nl04=0.4 otherwise
Jun 15 2012 12:30:14:203PM	1120615013	Paul Ennever	Requested: nl04 = 0.4, unseeded Results: disrupted after 1.2s, useful data before that though nl04 = 0.40 x 10^20 m^-2 nD/ne = 83% Zbright = 2.4 Zneo = 4.1 ave_Z = 6.7 Te0 = 3.1 keV next: Repeat shot 12 to get Thomson data
Jun 15 2012 12:42:52:683PM	1120615014	Paul Ennever	Requested: nl04 = 0.5, unseeded Results: Fizzle nl04 = x 10^20 m^-2 nD/ne = % Zbright = Zneo = ave_Z = Te0 = keV next: Repeat
Jun 15 2012 01:00:23:173PM	1120615015	Paul Ennever	Requested: nl04 = 0.5, unseeded Results: nl04 = 0.45 x 10^20 m^-2 nD/ne = 82% Zbright = 2.4 Zneo = 3.5 ave_Z = 6.5 Te0 = 2.6 keV next: Start Part 7: nl04=0.4, Nitrogen seeded
Jun 15 2012 01:25:18:780PM	1120615016	Paul Ennever	Requested: nl04 = 0.4, seeded Results: Disrupted at 0.75s nl04 = x 10^20 m^-2 nD/ne = % Zbright = Zneo = ave_Z = Te0 = keV next: Re-do at nl04 = 0.5 and 50 V on PG1
Jun 15 2012 01:41:00:177PM	1120615017	Paul Ennever	Requested: nl04 = 0.4, seeded Results: nl04 = 0.47 x 10^20 m^-2 nD/ne = % Zbright = Zneo = 3.4 ave_Z = Te0 = 2.7 keV Primary Nitrogen line is missing in impspec, will have to re-visit for exact numbers. next: Re-do at nl04 = 0.5 and 80 V on PG1
Jun 15 2012 01:53:07:780PM	1120615018	Paul Ennever	Requested: nl04 = 0.5, seeded Results: Disrupted at 0.74s nD/ne = % Zbright = Zneo = ave_Z = Te0 = keV next: Raise density to nl04 = 0.55 and 80 V on PG1
Jun 15 2012 02:00:42:600PM	1120615019	Paul Ennever	Requested: nl04 = 0.55, seeded Results: Disrupted at 0.85s nD/ne = % Zbright = Zneo = ave_Z = Te0 = keV next: Lower PG1 to 60V
Jun 15 2012 02:15:07:330PM	1120615020	Paul Ennever	Requested: nl04 = 0.55, seeded Results: Disrupted at 0.85s nD/ne = % Zbright = Zneo = ave_Z = Te0 = keV next: Lower PG1 to 45V
Jun 15 2012 02:37:31:057PM	1120615021	Paul Ennever	Requested: nl04 = 0.55, seeded Results: nl04 = 0.45 x 10^20 m^-2 nD/ne = % Zbright = Zneo = ave_Z = Te0 = 2.0 keV Locks at 0.8s next: Raise Density to nl04=0.65
Jun 15 2012 03:07:25:227PM	1120615022	Paul Ennever	Requested: nl04 = 0.65, seeded Results: nl04 = 0.56 x 10^20 m^-2 nD/ne = % Zbright = Zneo = ave_Z = Te0 = 2.6 keV next: Raise PG1 to 55V
Jun 15 2012 03:09:34:980PM	1120615023	Paul Ennever	Requested: nl04 = 0.65, seeded Results: nl04 = 0.60 x 10^20 m^-2 nD/ne = % Zbright = Zneo = ave_Z = Te0 = 2.5 keV next: Raise density to nl04 = 0.75
Jun 15 2012 03:30:33:517PM	1120615024	Paul Ennever	Requested: nl04 = 0.75, seeded Results: nl04 = 0.65 x 10^20 m^-2 nD/ne = % Zbright = Zneo = ave_Z = Te0 = 2.3 keV next: Raise density to nl04=0.85
Jun 15 2012 03:53:23:453PM	1120615025	Paul Ennever	Requested: nl04 = 0.85, seeded Results: nl04 = 0.75 x 10^20 m^-2 nD/ne = % Zbright = Zneo = ave_Z = Te0 = 2.3 keV Rotation reversal @ 0.9s next: Raise density to nl04=0.9, raise PG1 to 60 V
Jun 15 2012 04:04:11:963PM	1120615026	Paul Ennever	Requested: nl04 = 0.90, seeded Results: nl04 = 0.8x 10^20 m^-2 nD/ne = % Zbright = Zneo = 2.14 ave_Z = Te0 = 2.2 keV Rotation reversal @ 1.15s? next: Raise PG1 to 70 V
Jun 15 2012 04:57:55:910PM	1120615027	Paul Ennever	Requested: nl04 = 0.90, unseeded Results: nl04 = 0.8 x 10^20 m^-2 nD/ne = % Zbright = Zneo = 2.27 ave_Z = Te0 = 2.2 keV Rotation reversal @ 1.0s next: Disable PG1, do unseeded shot
Jun 15 2012 04:59:59:733PM	1120615029	Paul Ennever	Requested: nl04 = 0.80, unseeded Results: nl04 = 0.72 x 10^20 m^-2 nD/ne = % Zbright = Zneo = ave_Z = Te0 = 2.1 keV next: Run Over

Physics Operator Comments
Jun 15 2012 09:06:44:943AM	1120615001	Syunichi Shiraiwa	Loaded 1120613028 Update density to 0.7e20 Set Ip to 1MA Enable Ar (PG5) 0.4s for 75ms Enable Ninja No Power Shot
Jun 15 2012 09:22:28:913AM	1120615002	Syunichi Shiraiwa	Fizzle. Nuetral pressure seems to be low... Increased pre-puff by 2ms
Jun 15 2012 09:45:06:200AM	1120615003	Syunichi Shiraiwa	Fizzle again. Background N2 level is x10 high since last night...? Next: turn-on Cryo-pump
Jun 15 2012 10:00:26:270AM	1120615004	Syunichi Shiraiwa	Got a full length plasma. Next: set Ar to 50ms and add 20ms after 1s
Jun 15 2012 10:09:37:907AM	1120615005	Syunichi Shiraiwa	Got a plasma. Matts is happy with his signal. Next: going to Part 2
Jun 15 2012 10:10:17:900AM	1120615005	Syunichi Shiraiwa	Got a plasma. Matts is happy with his signal. Next: going to Part 2 Set density to 0.6
Jun 15 2012 10:31:19:877AM	1120615006	Syunichi Shiraiwa	Locked mode based on 1120607004 H-bot 0.4-0.55 @80V
Jun 15 2012 10:32:09:483AM	1120615006	Syunichi Shiraiwa	Locked mode based on 1120607004 H-bot 0.4-0.55 @80V B-side lower disabled
Jun 15 2012 10:46:11:450AM	1120615007	Syunichi Shiraiwa	Did not get a locked mode. Seems like it runs seg 2. 5.4 T of part 2
Jun 15 2012 10:51:36:267AM	1120615008	Syunichi Shiraiwa	Fizzle
Jun 15 2012 11:08:45:553AM	1120615009	Syunichi Shiraiwa	Locked mode Next: part 3 set ne04 to 0.5e20
Jun 15 2012 11:24:47:787AM	1120615010	Syunichi Shiraiwa	Disrupted during the ramp-down Next: increased Ar to 80ms reduced puff in seg 1 after break donw a little.
Jun 15 2012 11:37:46:060AM	1120615011	Syunichi Shiraiwa	Fizzle. Next: retry
Jun 15 2012 11:58:44:647AM	1120615013	Syunichi Shiraiwa	Next: set ne04 to 4.3e19 extend the density request to 1.8s
Jun 15 2012 12:21:33:103PM	1120615013	Syunichi Shiraiwa	disrupted at 1.25s . Injection..? Density is 4e19 Next: set ne to 5e19. the previous discharge for this density did not have Thomson data taken.
Jun 15 2012 12:38:29:770PM	1120615014	Syunichi Shiraiwa	Fizzle Next: Repeat
Jun 15 2012 01:05:19:213PM	1120615015	Syunichi Shiraiwa	Fulllength plasma Beam is not good for this shot. Enable B-lower (pg1) and set pg1 to 60V from 0.7-1.3s
Jun 15 2012 01:26:37:563PM	1120615016	Syunichi Shiraiwa	Disrupted at 0.78s Maybe ne is too low? Next: increase density to 0.5e20
Jun 15 2012 01:32:31:890PM	1120615017	Syunichi Shiraiwa	got a plasma ne 4.5e19
Jun 15 2012 01:34:22:900PM	1120615017	Syunichi Shiraiwa	got a plasma ne 4.5e19 next : repeat with a higher pg1 voltage (80V)
Jun 15 2012 01:50:02:710PM	1120615017	Syunichi Shiraiwa	Disrupted 0.7s Next: increased pre-programmed puff after bd
Jun 15 2012 02:15:50:613PM	1120615020	Syunichi Shiraiwa	disrupted again at around 0.8s next: reduce pg1 to 45V
Jun 15 2012 02:35:39:270PM	1120615021	Syunichi Shiraiwa	Got a full length plasma A couple of core Te drop happend around 0.8-1.0s, when rotation slows down and sawtooth be came smaller. Next: increase ne to 6.5e19
Jun 15 2012 02:50:14:367PM	1120615021	Syunichi Shiraiwa	A full length plasma Density is 6e19 Next: set pg1 to 55V
Jun 15 2012 03:02:31:183PM	1120615023	Syunichi Shiraiwa	Plasma was okey until ramp-down phase.
Jun 15 2012 03:08:45:653PM	1120615023	Syunichi Shiraiwa	Plasma was okey until ramp-down phase. next: increase density to 7 (request will be 7.5e19)
Jun 15 2012 03:31:29:363PM	1120615024	Syunichi Shiraiwa	full length plasma Next : increase the density (request will be 8.5e19)
Jun 15 2012 03:52:50:273PM	1120615025	Syunichi Shiraiwa	ne04 ~ 8e19 Next: request ne 0.9e20 set pg1 to 60V
Jun 15 2012 04:03:15:063PM	1120615026	Syunichi Shiraiwa	full length plasma Next: try to reduce density drop around 0.5s increase pg1 to 70V
Jun 15 2012 04:22:37:387PM	1120615027	Syunichi Shiraiwa	full length plasma ne 0.8e20 density trace is more flat without drop around 0.5s next: disable B-lower (no seeding)
Jun 15 2012 04:43:17:660PM	1120615028	Syunichi Shiraiwa	no seeding. full length plasma next: request ne04 0.8e20
Jun 15 2012 04:59:30:237PM	1120615029	Syunichi Shiraiwa	Full length plasma with ne 7.3e19

Engineering Operator Comments
Shot	Time	Type	Status	Comment
1	08:59:51:793AM	Plasma	Bad	Igor
2	09:15:28:353AM	Plasma	Ok
3	09:30:25:217AM	Plasma	Ok
4	09:48:51:710AM	Plasma	Ok
5	10:03:15:573AM	Plasma	Ok
6	10:16:43:537AM	Plasma	Ok
7	10:32:24:950AM	Plasma	Ok
8	10:48:07:657AM	Plasma	Ok
9	11:01:36:110AM	Plasma	Ok
10	11:15:59:740AM	Plasma	Ok
11	11:33:11:907AM	Plasma	Ok
12	11:46:58:643AM	Plasma	Ok
13	12:12:55:803PM	Plasma	Ok
14	12:32:39:993PM	Plasma	Ok
15	12:47:24:330PM	Plasma	Ok
16	01:05:59:400PM	Plasma	Ok
17	01:26:15:630PM	Plasma	Ok
18	01:39:50:147PM	Plasma	Ok
19	01:53:59:357PM	Plasma	Ok
20	02:09:01:653PM	Plasma	Ok
21	02:22:29:370PM	Plasma	Ok
22	02:40:35:153PM	Plasma	Ok
23	02:58:39:570PM	Plasma	Ok
24	03:18:48:853PM	Plasma	Ok
25	03:38:02:680PM	Plasma	Ok
26	03:55:19:140PM	Plasma	Ok
27	04:13:28:840PM	Plasma	Ok
28	04:34:37:370PM	Plasma	Ok
29	04:53:50:013PM	Plasma	Ok

System Availability

Jun 15 2012 08:58:16:613AM

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 no Bottle has been disconnected from gas lines and plugged. It is being stored in the diborane cabinet. Feb 29 2012 07:47:39:617AM (dekow) Jim Irby Boronization dekow,irby CECE no   Jan 6 2012 03:48:47:060PM  Anne White Correlation ECE 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 no Off line. Helium dewar to be installed Monday 5/14/12 May 10 2012 08:45:54:900AM (labombard) 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 no LH is now safe for manned entry into machine. Positioner locked and tagged off. Switches locked in dummy load position. Mar 2 2012 02:34:28:943PM (dterry) 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 yes Midplane Lyman-a. New B-PORT Lyman (BPLY) still being debugged. Apr 20 2012 10:44:00:540AM (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 viewing the 10-14 nm region for molybdenum monitoring. It's days are numbered as LoWEUS has demonstrated superiority. Apr 20 2012 10:44:10:937AM (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. May 1 2012 08:31:33:743AM (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 no SSS is up to air, no safety issues. Feb 27 2012 01:51:48:783PM (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 one 50Hz laser, precise density calibration still required. May 9 2012 03:12:32:050PM (jwhughes) Jerry Hughes Core Thomson scattering jrwalk,jwhughes,yma TS - Edge yes Operating with one 50Hz laser, precise density calibration still required. May 9 2012 03:12:51:363PM (jwhughes) 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