Fast framing movies of TFTR plasma events, 1996 Campaign
Shot 92191:
Disruption at ~2.94 s registered in white visible light (plasma current: 1.6 MA). Clip shows 0.28 s of evolution: from 2.88 to 3.16 s. Observe the debris flying inside the torus after the disruption. (250 frames per second with 0.4 milliseconds exposure of each frame.)
Shot 92559:
Disruption at ~1.50 s registered in white visible light (plasma current: 1.2 MA). Clip shows 0.225 s of evolution: from 1.4 to 1.625 s. Observe the highly radiating spot that turns on and off from about 0.1 s before the main event. (2000 frames per second with 10 microseconds exposure of each frame.) (Waveforms
)
Shot 92722:
Disruption at ~2.11 s registered in white visible light (plasma current: 1.6 MA). Clip shows 0.125 s of evolution just after the disruption: from 2.2 to 2.325 s. Observe the flying debris after the disruption. (2000 frames per second with 10 microseconds exposure of each frame.)
Shot 92736:
Disruption at ~2.53 s registered in white visible light (plasma current: 1.6 MA). Clip shows 0.1325 s of evolution: from 2.5325 to 2.665 s. Observe the flying debris, one of them breaks up in two at ~2.64 s. (2000 frames per second with 20 microseconds exposure of each frame.)
Shot 92804:
Disruption at ~3.09 s registered in CII light (430 nm) (plasma current: 1.6 MA). Clip shows 0.075 s of evolution: from 3.09 to 3.165 s. The main part of the plasma/field energy is apparently dumped into the wall of the torus outside the field of view of the camera. (2000 frames per second with 10 microseconds exposure of each frame.)
Shot 92826:
MARFE at ~2.18 s registered in white visible light. Clip shows 0.025 s of evolution: from 2.17 to 2.195 s. The highly radiating band appears to sweep the inner armour, the plasma survives this event. (2000 frames per second with 20 microseconds exposure of each frame.)
Shot 92933:
Typical "well behaved" discharge with 26 MW of neutral-beam heating. The auxiliary heating is phased down to 7 MW at 2.9 s. Clip shows 0.4 s of evolution: from 2.6335 to 3.0335 s. Observe the vertical bands on the inner armour produced a less tight magnetic bottle on those locations. (2000 frames per second with 100 microseconds exposure of each frame.) (Waveforms)
Shot 92960:
A lithium pellet is injected into the plasma at 4.1 s. Clip shows 0.6 s of evolution: from 4.088 to 4.688 s. Observe the "Unidetified Flying Object (UFO)" at around 4.48 s. (500 frames per second with 200 microseconds exposure of each frame.)
Shot 92966:
Disruption at ~1.35 s registered in white visible light (plasma current: 1.5 MA). Clip shows 0.6 s of evolution: from 1.198 to 1.798 s. Observe the flying debris after the disruption. (500 frames per second with 50 microseconds exposure of each frame.)
Shot 92974:
During the startup phase (current buildup), in addition to the vertical bands on the inner armour (see shot 92933), horizontal bands are seen. Clip shows the first 0.96 s of the discharge. Observe the bright impurity spot at around 0.57 s. (500 frames per second with 200 microseconds exposure of each frame.) (Waveforms)
Shot 92977:
Two lithium pellets are injected into the plasma at 4.1 and 4.3 s. Clip shows 0.4 s of evolution: from 4.08 to 4.48 s. Since the pellet is injected on the left side of the image, that side iluminates first. (500 frames per second with 100 microseconds exposure of each frame.) (Waveforms)
Shot 92983:
Disruption at ~2.33 s registered in Li+ light (598.5 nm) (plasma current: 2.2 MA). Clip shows 2.0 s of evolution: from 0.476 to 2.476 s. Observe how the plasma runs into trouble (highly radiating structure at the edge) well before the disruption. (500 frames per second with 2 millisecond exposure of each frame.)
Shot 92994:
Two lithium pellets injected into the plasma at 4.1 and 4.3 s are observed in Li+ light (598.5 nm). Clip shows 1.0 s of evolution: from 4.072 to 5.072 s. (500 frames per second with 2 milliseconds exposure of each frame.) (Waveforms)
Shot 93020 (1),(2):
Toroidal structures are observed in Li+ light (598.5 nm) after a disruption (at 0.877 s). Two clips can be seen: (1) shows 0.3 s of evolution (from 0.9 to 1.2 s) and (2) shows 0.1 s of evolution (from 1.85 to 1.95 s). (1000 frames per second with 1 millisecond exposure of each frame.)
Shot 93025:
Disruption at ~1.174 s registered in Li+ light (598.5 nm) (plasma current: 1.5 MA). Clip shows 0.45 s of evolution: from 0.8 to 1.25 s. Observe how the highly radiating toroidal bands present before the disruption. (1000 frames per second with 1 millisecond exposure of each frame.)
Shot 93029:
Disruption at ~1.625 s registered in CII light (430 nm) (plasma current: 1.9 MA). Clip shows 0.137 s of evolution: from 1.548 to 1.685 s. Observe the bright spots at the top and bottom of the inner armour before the disruption. (1000 frames per second with 1 millisecond exposure of each frame.)
Shot 93045:
Disruption at ~1.65 s registered in white visible light (plasma current: 1.9 MA). Clip shows 0.35 s of evolution: from 1.55 to 1.9 s. Observe the toroidal bands and flying debris after the disruption. (1000 frames per second with 20 microseconds exposure of each frame.)
Shot 93326:
Well behaved discharge with 17 MW of neutral-beam heating. Clip shows 0.2 s of evolution: from 2.45 to 2.65 s. Observe a "falling" UFO at around 2.5 s. (1000 frames per second with 200 microseconds exposure of each frame.)
Shot 93456:
Disruption at ~2.48 s registered in white visible light (plasma current: 2.2 MA). Clip shows 0.4 s of evolution: from 2.4 to 2.8 s. Observe the flying debris after the disruption. (1000 frames per second with 200 microseconds exposure of each frame.)
Shot 93479:
Disruption at ~3.07 s registered in white visible light (plasma current: 2.2 MA). Clip shows 0.187 s of evolution: from 3.05 to 3.237 s. Observe the flying debris after the disruption. (1000 frames per second with 20 microseconds exposure of each frame.)
Shot 93499:
Disruption at ~2.93 s registered in white visible light (plasma current: 2.2 MA). Clip shows 0.1 s of evolution: from 2.9 to 3.0 s. A runaway current of ~0.7 MA is produced in this disruption. This current survives until ~2.97 s when it is apparently crushed against the inner armour (equatorial midplane). (1000 frames per second with 20 microseconds exposure of each frame.) (Waveforms)
Shot 93504:
During the startup phase (current buildup) horizontal bands are seen. Clip shows 0.2 s of evolution: from 0.6 to 0.8 s. (1000 frames per second with 500 microseconds exposure of each frame.)
Shot 93517:
Disruption at ~2.54 s registered in CII light (430 nm) (plasma current: 2.0 MA). Clip shows 0.2 s of evolution: from 2.5 to 2.7 s. (1000 frames per second with 500 microseconds exposure of each frame.)
Shot 94292:
During the startup phase (current buildup) horizontal bands are seen. Clip shows 0.3 s of evolution: from 0.6 to 0.9 s. (1000 frames per second with 500 microseconds exposure of each frame.)
Shot 94304:
Disruption at ~2.9 s registered in white visible light (plasma current: 1.6 MA). Clip shows 0.27 s of evolution: from 2.87 to 3.14 s. Observe the flying debris after the disruption. The shaking of the periscope due to this disruption broke loose the turning prism that controls the elevation of the image. After the disruption (and in following discharges) only images of the bottom half of the torus could be obtained. Note that before the disruption the image is tilted clockwise ~30 deg due to the prism getting crooked.... so it is not completelly the fault of this disruption but also of a previous disruption (perhaps). (1000 frames per second with 200 microseconds exposure of each frame.)
Shot 94331:
Disruption at ~2.22 s registered in white visible light (plasma current: 1.6 MA). Clip shows 0.3 s of evolution: from 2.1 to 2.4 s. Observe that the intensity at the bottom of the machine increases substantially before the disruption. (1000 frames per second with 100 microseconds exposure of each frame.)
Shot 94347:
Disruption at ~2.42 s registered in white visible light (plasma current: 1.6 MA). Clip shows 0.23 s of evolution: from 2.4 to 2.63 s. Observe the flying debris after the disruption. (1000 frames per second with 75 microseconds exposure of each frame.)
Shot 94392:
Disruption at ~2.9 s registered in D/alpha/ light (656.1 nm) (plasma current: 1.6 MA). Clip shows 0.12 s of evolution: from 2.88 to 3.0 s. (1000 frames per second with 1 millisecond exposure of each frame.)
Shot 94424:
During the startup phase (current buildup) horizontal bands are seen. Clip shows 0.25 s of evolution: from 0.75 to 1.0 s. (1000 frames per second with 100 microseconds exposure of each frame.)
Shot 94436:
A boron pellet is injected into the plasma at 3.41 s. Clip shows 0.06 s of evolution: from 3.41 to 3.47 s. (1000 frames per second with 100 microseconds exposure of each frame.)
Shot 94472:
Disruption at ~2.47 s registered in white visible light (plasma current: 1.6 MA). Clip shows 0.8 s of evolution: from 2.0 to 2.8 s. (250 frames per second with 500 microseconds exposure of each frame.)
Shot 94504:
Disruption at ~2.79 s registered in Li+ light (548.5 nm) (plasma current: 1.6 MA). Clip shows 1.0 s of evolution: from 2.0 to 3.0 s. Note that although not much light is seen before the disruption, when the disruption occurs it completelly saturates the image. (250 frames per second with 500 microseconds exposure of each frame.)
Shot 94513:
Disruption at ~2.52 s registered in Li+ light (548.5 nm) (plasma current: 1.4 MA). Clip shows 0.4 s of evolution: from 2.48 to 2.88 s. Observe the toroidal bands (or "sheath") present after the disruption. (250 frames per second with 500 microseconds exposure of each frame.)
Shot 94525:
Disruption at ~2.7 s registered in Li+ light (548.5 nm) (plasma current: 1.6 MA). Clip shows 0.56 s of evolution: from 2.32 to 2.88 s. (250 frames per second with 500 microseconds exposure of each frame.)
Shot 94574:
Disruption at ~2.62 s registered in Li+ light (548.5 nm) (plasma current: 1.6 MA). Clip shows 0.15 s of evolution: from 2.6 to 2.75 s. (2000 frames per second with 200 microseconds exposure of each frame.) (Waveforms)
Shot 94662:
In the shot following a disruption the bottom limiter "boils off" during startup. Clip shows 0.1 s of evolution in white visible light: from 1.55 to 1.65 s (zoomed in image). (1000 frames per second with 500 microseconds exposure of each frame.)
NOTE:
The head of the periscope was repaired (see Shot 94304 above), but due to the high radiation present close to the torus there was no time to check and correct its orientation. Consequently, the image in the following clips is rotated ~150 deg. clockwise.
Shot 94708:
A lithium pellet is injected into the plasma at ~1.21 s. The plasma doesn't survive this event and slowly dies. Clip shows 0.15 s of evolution in white visible light: from 1.2 to 1.35 s. (1000 frames per second with 500 microseconds exposure of each frame.)
Shot 94709:
An UFO drifts slowly in the toroidal direction during a typical discharge (white visible light). Clip shows 0.05 s of evolution: from 1.84 to 1.91 s. (1000 frames per second with 500 microseconds exposure of each frame.)
Shot 94711:
Disruption at ~2.37 s registered in white visible light (plasma current: 1.2 MA). Observe UFO after the disruption. Clip shows 0.18 s of evolution: from 2.34 to 2.52 s. (1000 frames per second with 500 microseconds exposure of each frame.)
Shot 94752:
During the startup phase (current bluildup) horizontal bands are seen in white visible light. Clip shows 0.2 s of evolution: from 0.6 to 0.8 s. (1000 frames per second with 500 microseconds exposure of each frame.)
Shot 94753:
Disruption at ~0.81 s registered in white visible light (plasma current: 1.3 MA). After the disruption the plasma decays with a long current tail that is characterized by very intense radiation. Clip shows 1.05 s of evolution: from 0.8 to 1.85 s. (1000 frames per second with 500 microseconds exposure of each frame.)
Shot 94756:
Disruption at ~1.66 s registered in white visible light (plasma current: 2.1 MA). Observe the on/off radiation from the bottom and top limiters before the disruption and the flying debris after the disruption. Clip shows 0.3 s of evolution: from 1.5 to 1.8 s. (1000 frames per second with 100 microseconds exposure of each frame.)
Shot 94762:
Disruption at ~1.57 s registered in white visible light (plasma current: 2.0 MA). Observe the radiation from the bottom and top limiters before the disruption. Clip shows 0.3 s of evolution: from 1.4 and 1.7 s. (1000 frames per second with 50 microseconds exposure of each frame.)
Shot 94775:
Disruption at ~1.69 s registered in white visible light (plasma current: 1.4 MA). Observe the toroidally structured radiation before the disruption. Clip shows 0.18 s of evolution: from 1.6 to 1.78 s. (1000 frames per second with 20 microseconds exposure of each frame.)
Shot 94808:
The bottom limiter (on top in the clip) becomes a source of UFOs when the neutral beams are turned on. Clip shows 0.2 s of evolution in white visible light: from 1.65 to 1.85 s. (1000 frames per second with 50 microseconds exposure of each frame.)
Shot 94809:
Disruption at ~1.47 s registered in white visible light (plasma current: 1.8 MA). Observe the precursor radiation on the top and bottom limiter. Clip shows 0.22 s of evolution: from 1.35 to 1.57 s. (1000 frames per second with 50 microseconds exposure of each frame.)
Shot 94843:
Disruption at ~1.00 s registered in D/alpha/ light (plasma current: 1.1 MA). Observe toroidal bands ("hulla-hoops") present after the disruption. Clip shows 0.15 s of evolution: from 1.00 to 1.15 s. (1000 frames per second with 1000 microseconds exposure of each frame.)
Shot 94845:
A big piece of debris comes out from the bottom limiter (on top in the clip) at the beggining of the neutral beam heating phase. The debris appears to break during flight. Clip shows 0.06 s of evolution in white visible light: from 1.9 to 1.96 s. (1000 frames per second with 50 microseconds exposure of each frame.)
Shot 94850:
During the startup phase (current buildup) horizontal bands are seen in white visible light. Clip shows 0.25 s of evolution: from 0.7 to 0.95 s. (1000 frames per second with 200 microseconds exposure of each frame.)
Shot 94856:
An impurity "bloom" is registered in white visible light at ~1.4 s (not to be confused with a pellet!). Clip shows 0.15 s of evolution: from 1.35 to 1.50 s. (1000 frames per second with 50 microseconds exposure of each frame.)
Shot 94858:
An impurity "bloom" is registered in white visible light at ~0.98 s. This is followed by the typical horizontal bands seen during current startup. Clip shows 0.48 s of evolution: from 0.92 to 1.40 s. (1000 frames per second with 50 microseconds exposure of each frame.)
Shot 94859 (1),(2):
(1) Two impurity blooms are registered in white visible light at ~0.98 and ~1.04 s. Clip shows 0.2 s of evolution: from 0.9 to 1.1 s. (2) "Pulsating" radiation is observed in white visible light on the inner armour. Clip shows 0.15 s of evolution: from 1.3 to 1.45 s. (1000 frames per second with 50 microseconds exposure of each frame.)
Shot 94861:
Two impurity blooms are registered in white visible light at ~0.98 s and ~1.05 s. At ~1.25 s a short lived, bright UFO can be seen. Observe the high amount of radiation "activity" on the inner armour through out this discharge. Clip shows 0.6 s of evolution: from 0.9 to 1.5 s. (1000 frames per second with 50 microseconds exposure of each frame.) (Waveforms)
Shot 94863:
During the startup phase (current bluildup) horizontal bands are seen in white visible light. Clip shows 0.2 s of evolution: from 0.1 to 0.3 s. (1000 frames per second with 50 microseconds exposure of each frame.)
Shot 94864:
During the startup phase (current bluildup) horizontal bands are seen in white visible light. Clip shows 0.2 s of evolution: from 0.1 to 0.3 s. (1000 frames per second with 40 microseconds exposure of each frame.)
Shot 94865:
During the startup phase (current bluildup) horizontal bands are seen in white visible light. Clip shows 0.2 s of evolution: from 0.1 to 0.3 s. (1000 frames per second with 20 microseconds exposure of each frame.)
Shot 94867:
During the startup phase (current bluildup) horizontal bands are seen in white visible light. Observe also the UFOs at ~0.19 s. Clip shows 0.2 s of evolution: from 0.1 to 0.3 s. (1000 frames per second with 80 microseconds exposure of each frame.)
Shot 95139:
During the startup phase (current bluildup) horizontal bands are seen in white visible light. Clip shows 0.9 s of evolution: from 0.0 to 0.9 s. (1000 frames per second with 200 microseconds exposure of each frame.)
Shot 95442 (1),(2):
Two lithium pellets are injected into the plasma and observed in Li+ light (548.5 nm). (1) Pellet at ~2.53 s. Clip shows 0.08 s of evolution: from 2.52 to 2.6 s. (2) Pellet at ~2.73 s. Clip shows 0.08 s of evolution: from 2.72 to 2.8 s. (1000 frames per second with 20 microseconds exposure of each frame.)
Shot 95446:
A lithium pellet is injected into the plasma at ~3.23 and observed in Li+ light (548.5 nm). Clip shows 0.25 s of evolution: from 3.2 to 3.45 s. (1000 frames per second with 100 microseconds exposure of each frame.)
Shot 95447:
A lithium pellet is injected into the plasma at ~3.23 and observed in Li+ light (548.5 nm). Clip shows 0.3 s of evolution: from 3.2 to 3.5 s. (1000 frames per second with 100 microseconds exposure of each frame.)
Shot 95448:
A lithium pellet is injected into the plasma at ~3.23 s and observed in Li+ light (548.5 nm). Clip shows 0.25 s of evolution: from 3.2 to 3.45 s. (1000 frames per second with 100 microseconds exposure of each frame.)
Shot 95449:
Horizontal bands are also seen in Li+ light (548.5 nm) when pellets are injected into the plasma (~2.53 and ~2.73 s in this shot). Clip shows 0.15 s of evolution: from 2.6 to 2.75 s. (1000 frames per second with 100 microseconds exposure of each frame.)
Shot 95450:
A lithium pellet is injected into the plasma at ~4.12 s and observed in Li+ light (548.5 nm). Clip shows 0.137 s of evolution: from 4.1 to 4.237 s. (1000 frames per second with 100 microseconds exposure of each frame.)
Shot 95547:
Two lithium pellets are injected into the plasma (~2.53 and ~2.73 s) and observed in Li+ light (548.5 nm). Clip shows 0.28 s of evolution: from 2.52 to 2.8 s. (1000 frames per second with 100 microseconds exposure of each frame.)
Shot 95555:
A poloidally localized impurity bloom is obseved in Li+ light (548.5 nm). Clip shows 0.2 s of evolution: from 4.4 to 4.6 s. (1000 frames per second with 50 microseconds exposure of each frame.)
Shot 95584:
A localizized impurity bloom is observe in this DT discharge in Li+ light (548.5 nm). Clip shows 0.2 s of evolution: from 4.3 to 4.5 s. (1000 frames per second with 50 microseconds exposure of each frame.)
Shot 95585:
Uneventful discharge observed in Li+ light (548.5 nm). Clip shows 0.15 s of evolution: from 4.4 to 4.55. (1000 frames per second with 50 microseconds exposure of each frame.)
Shot 95603:
Disruption at ~4.28 s registered in Li+ light (5.485 nm). Clip shows 0.1 s of evolution: from 4.2 to 4.3 s. (1000 frames per second with 50 microseconds exposure of each frame.)
Shot 95619:
Impurity bloom observed in white visible light. Clip shows 0.107 s of evolution: from 4.13 to 4.237 s. (1000 frames per second with 100 microseconds exposure of each frame.)
Shot 96036:
Disruption at ~2.46 s registered in white visible light. Observe the flying debris after the disruption. Clip shows 0.2 s of evolution: from 2.45 to 2.65 s. (1000 frames per second with 1000 microseconds exposure of each frame.)
Shot 96061:
Impurity bloom observed in white visible light close to the bottom limiter (on top on the clip). Clip shows 0.05 s of evolution: from 2.22 to 2.27 s. (1000 frames per second with 50 microseconds exposure of each frame.)
Shot 96135:
UFO seen during neutral beam injection in white visible light. Clip shows 0.1 s of evolution: from 3.3 to 3.4 s. (1000 frames per second with 100 microseconds exposure of each frame.)
Shot 96149:
An argon puff is injected at ~3.5 s although not much is seen in Li+ light (548.5 nm). Clip shows 0.1 s of evolution: from 3.5 to 3.6 s. (1000 frames per second with 1000 microseconds exposure of each frame.)
Shot 96150:
Disruption at ~3.86 s registered in Li+ light (548.5 nm). Observe how the plasma moves off the inner wall before the disruption. Clip shows 0.525 s of evolution: from 3.5 to 4.025 s. (1000 frames per second with 1000 microseconds exposure of each frame.)
Shot 96169:
A lithium pellet is injected into the plasma at ~1.41 s and registered in Li+ light (548.5 nm). Clip shows 0.5 s of evolution: from 1.4 to 1.9 s. (1000 frames per secons with 1000 exposure of each frame.)
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Last update: March 16, 1997 by Ricky Maqueda, maqueda@lanl.gov
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