Tokamak GOLEM - Shot Database - #53625

Time stamp26-07-08 16:46:18The session mission/tG/Dirigent/Setups/Experiments/PlasmaEdge/SpontaneousTransportBarrierHePlasma/Sedmidubsky-Jul26-MixturesThe session ID 53576 The discharge commentMT He discharges r 78 Ar seeded scan 3 mPaDischarge command/Dirigent.sh --discharge --operation.discharge "style='standard'" --infrastructure.bt_ecd "S_mode='time',U_cd=700,U_Bt=900,t_Bt=1000,t_cd=2000,O_Bt='CW',O_cd='CW',Cht_bt=30,Cht_cd= ...

     Technological parameters

• Working Gas: \(p\sub{chamber}\sup{discharge,before}\)=2.64 mPa; \(p\sub{chamber}\sup{discharge,pre}\)=19.80 mPa (\(p\sub{WG}\sup{request}\)= 20 mPa@\(X\sub{WG}\sup{request}\)=He )
• Toroidal magnetic field: \(U\sub{C_{PTC}}\sup{dcd}\)=932 V@\(t\sub{B\sub{t}}\sup{request}\)=1000.0 us
( time charging mode: \(\)= 30 )
• Current drive field: \(U\sub{C_{TFC}}\sup{launch}\)=690 V@\(t\sub{cd}\sup{request}\)=2000.0 us ( time charging mode: \(t\sub{E\sub{cd}}\sup{request}\)= 23 s )

    Plasma:

• Plasma: yes or no: ☑
• Time parameters:\(\Delta t\sub{p}\)=10.30 ms (from:\(t\sub{start}\)=3.74 ms,to:\(t\sub{end}\)=14.05 ms)
• Flattop parameters:\(\)=2.62 (from:\(\)=9.15 ,to:\(\)=11.77 )

    Plasma parameters:

• Loop voltage:\(\overline{U\sub{loop}}\)\(\)=14.73 ; \(\)=16.53 ; \(\)=
• Toroidal magnetic field: \(\overline{B\sub{t}}\)=0.27 T; \(\max_{\tau \in [discharge]}B\sub{t}\)=0.40 T
• Plasma current: \(\overline{I\sub{p}}\)=2.07 kA; \(\max_{\tau \in [discharge]}I\sub{p} \)=2.69 kA; \(t\sub{Ip}\sup{max}\)= ms

Basic Diagnostics    

On stage diagnostics

Basic diagnostics Data flow:

Double langmuir ball pen probe Data flow:

Parameters:r_lp_tip='78'

Fast cameras Data flow:

Parameters:fr_ux100a=1200,height_ux100a=56,recrate_ux100a=40000,shotdur_ux100a=40,width_ux100a=1280,fr_ux100b=1

Diamagnetism Data flow:

Off stage diagnostics

Magnetohydrodynamic 16 mirnov coils ring Data flow:

Mirnov coils @ Limiter Data flow:

Interferometry Data flow:

Slow optical spectrometry Data flow:

Fast spectrometry Data flow:

Analysis

Name	Analysis results

Infrastructure

Chamber

Bt and Ecd ,

Parameters :S_mode='time',U_cd=700,U_Bt=900,t_Bt=1000,t_cd=2000,O_Bt='CW',O_cd='CW',Cht_bt=30,Cht_cd=23

Working gas

Parameters :S_mode='p_wg',S_gas='He',p_H=20

Position stabilization :

Parameters :main_switch='on',radial_switch='on',radial_waveform='1000,0;4500,0;5000,1;5500,3;6000,5;8000,7;9000,7;20000,7;25000,0',vertical_switch='on',vertical_waveform='1000,0;4000,0;4500,-3;5000,-7;5500,-10;10000,-12;25000,0'

Current stabilization

Parameters :main_switch='off',waveform='1000,0;8000,0;10000,1;25000,-1;35000,0'

Acknowledgement

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Thanks to the specific help

The tokamak GOLEM controll SW @