Tokamak GOLEM - Shot Database - #50859

Time stamp25-12-10 15:03:15The session missionExperiments/PlasmaEdge/ZonalFlows/Nanobashvili-2025-SciProjFull steamThe session ID 50854 The discharge commentMaster test ZF preparation contDischarge command/Dirigent.sh --discharge --operation.discharge "style='standard'" --infrastructure.bt_ecd "U_Bt=900,t_Bt=0,U_cd=400,t_cd=200,O_Bt='CW',O_cd='CW'" --infrastructure.workinggas "S_mod ...

     Technological parameters

• Working Gas: \(p\sub{chamber}\sup{discharge,before}\)=0.18 mPa; \(p\sub{chamber}\sup{discharge,pre}\)=12.00 mPa (\(p\sub{WG}\sup{request}\)= 12 mPa@\(X\sub{WG}\sup{request}\)=H )
• Toroidal magnetic field: \(U\sub{B\sub{t}}\sup{request}\)=900 V@\(t\sub{B\sub{t}}\sup{request}\)=0.0 us
• Current drive field: \(U\sub{E\sub{cd}}\sup{request}\)=400 V@\(t\sub{cd}\sup{request}\)=200.0 us

    Plasma:

• Plasma: yes or no: ☑
• Time parameters:\(\Delta t\sub{p}\)=11.81 ms (from:\(t\sub{start}\)=2.02 ms,to:\(t\sub{end}\)=13.83 ms)

    Plasma parameters:

• Loop voltage:\(\overline{U\sub{loop}}\)\(\)=7.56 ; \(\)=27.97 ; \(\)=0.00
• Toroidal magnetic field: \(\overline{B\sub{t}}\)=0.26 T; \(\max_{\tau \in [discharge]}B\sub{t}\)=0.41 T
• Plasma current: \(\overline{I\sub{p}}\)=2.84 kA; \(\max_{\tau \in [discharge]}I\sub{p}\)=3.85 kA; \(t\sub{Ip}\sup{max}\)=0.00 ms

Basic Diagnostics    

On stage diagnostics

Basic diagnostics Data flow:

Double rake probe Data flow:

Parameters:r_first_tip=100,X_mod='111111111111',I_SilverBox=0

Rake probe Data flow:

Double langmuir ball pen probe Data flow:

Off stage diagnostics

Interferometry Data flow:

Fast cameras Data flow:

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

Slow optical spectrometry Data flow:

Scintillation probes Data flow:

Parameters:U_NIM_A1=600,U_NIM_A2=600,U_NIM_A3=600,U_NIM_A4=600

Fast spectrometry Data flow:

Magnetohydrodynamic 16 mirnov coils ring Data flow:

Analysis

Name	Analysis results

Infrastructure

Chamber

Bt and Ecd ,

Parameters :U_Bt=900,t_Bt=0,U_cd=400,t_cd=200,O_Bt='CW',O_cd='CW'

Working gas

Parameters :S_mode='p_wg',S_gas='H',p_H=12,U_v=0

Preionization

Parameters :S_device='HotCathode',SW_main='on',U_heater=90,U_accel=100

Position stabilization :

Parameters :main_switch='off',radial_switch='on',radial_waveform='1000,0;3000,0;10000,10;25000,15;30000,15;40000,15;50000,0',vertical_switch='on',vertical_waveform='1000,0;6000,0;10000,-10;13000,-10;15000,-10;19000,-8;48000,-8;50000,0'

Current stabilization

Parameters :main_switch='on',waveform='1000,0;10000,0;15000,-10;22000,-10;30000,0'

Biasing electrode

Parameters :main_switch='on',waveform='1000,0;3000,-20;15000,0;30000,0',position=100"

Acknowledgement

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Thanks to the specific help

The tokamak GOLEM controll SW @