Tokamak GOLEM - Shot Database - 11938

Date: 2013-04-26 - 18:40:00 Session:Experiments/BreakdownStudies/TopVersusBottomPreionizationGun [new] Comment: Bottom electron gun Wiki links: Experiments/BreakDownStudies/sessions/260413TopBottomElGun/figures/I/gnuplot, Experiments/BreakDownStudies/sessions/260413TopBottomElGun/figures/breakdown_rate/bottom, Experiments/BreakDownStudies/sessions/260413TopBottomElGun/figures/breakdown_voltage/bottom, Experiments/BreakDownStudies/sessions/260413TopBottomElGun/index

Basic parameters: (compare) Gas pressure pch:1.34->14.13 mPa (request: 14 mPa) WIKI Working gas: N/A Preionization: ON Chamber temperature: N/A C CBt capacitors changed to: 600 V, triggered 5.0 ms WIKI CBD capacitors changed to: 0 V, triggered 11.0 ms WIKI CCD capacitors changed to: 400 V, triggered 7.0 ms WIKI CST capacitors changed to: 0 V, triggered 5.0 ms WIKI Probability of breakdown: 88% WIKI Time since session beginning: 0:54:02 h

Plasma parameters: Plasma life time 7.5 [ms] (from 8.9 to 16.5) Mean toroidal magnetic field Bt: 0.15 T WIKI Mean plasma current: 1.35 kA WIKI Mean Uloop: 7.39 V WIKI Break down voltage: 9.0 V WIKI Ohmic heating power: 9.98 kW Q edge: 5.1 WIKI Electron temperature: 18.4 eV WIKI Line electron density: 11.11 [10^17.m^-2] WIKI

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• basicdiagn processing evolution: raw→ integrated→ final
• Basic diagnostics: loop_voltage, plasma_current, toroidal_field, photodiode, hxr, other diagnostics

Data Acquisition Systems (DAS):

TektronixDPO

NIstandard

Diagnostics:

PlasmaPosition

Interferometer

Spectrometer

Analysis:

AdvancedAnalysis	HistoricalAnalysis	ShotHomepage	Spectrograms	MultiCWT
Impurities

Acknowledgement:

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Thanks to the specific help and