Tokamak GOLEM - Shot Database - #48799

Time stamp25-04-30 13:55:25The session missionExperiments/PlasmaRegimes/MinimumStabilizationFull steamThe session ID 48788 The discharge commentRepeat #48726 with positionstabilization and no currentstabilization, U_cd=300 volt, radial_stab is off repeat with glow dischargeDischarge command/Dirigent.sh --discharge --operation.discharge "style='standard'" --infrastructure.preionization "S_device='HotCathode',SW_main='on',U_heater=100,U_accel=100" --infrastructure.bt_e ...

     Technological parameters

• Working Gas: \(p\sub{chamber}\sup{discharge,before}\)=0.67 mPa; \(p\sub{chamber}\sup{discharge,pre}\)=10.30 mPa (\(p\sub{WG}\sup{request}\)= 10 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: \(U\sub{E\sub{cd}}\sup{request}\)=300 V@\(t\sub{cd}\sup{request}\)=600.0 us

    Plasma:

• Plasma: yes or no: ☑
• Time parameters:\(\Delta t\sub{p}\)=18.37 ms (from:\(t\sub{start}\)=3.62 ms,to:\(t\sub{end}\)=21.98 ms)

    Plasma parameters:

• Loop voltage:\(\overline{U\sub{loop}}\)\(\)=5.54 ; \(\)=34.55 ; \(\)=0.00
• Toroidal magnetic field: \(\overline{B\sub{t}}\)=0.38 T; \(\max_{\tau \in [discharge]}B\sub{t}\)=0.53 T
• Plasma current: \(\overline{I\sub{p}}\)=2.60 kA; \(\max_{\tau \in [discharge]}I\sub{p}\)=4.38 kA; \(t\sub{Ip}\sup{max}\)=0.00 ms

Basic Diagnostics    

On stage diagnostics

Basic diagnostics Data flow:  Documentation:

Fast cameras Data flow:  Documentation:

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

Off stage diagnostics

Mirnov coils @ Limiter Data flow:  Documentation:

Analysis

Name	Analysis results

Infrastructure

Chamber

Bt and Ecd ,

Parameters :U_Bt=900,t_Bt=0,U_cd=300,t_cd=600,O_Bt='CW',O_cd='CW'

Working gas

Parameters :S_mode='p_wg',S_gas='H',p_H=10,U_v=22

Preionization

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

Position stabilization :

Parameters :main_switch='on',radial_switch='off',radial_waveform='1000,0;5000,-2;7000,-10;9000,-15;13000,-20;30000,0',vertical_switch='on',vertical_waveform='1000,0;5000,0;11000,-2;14000,-5;18000,-10;30000,0'

Current stabilization POKUS2

Parameters :main_switch='off',waveform='1000,0;2000,0;5000,0;8000,0;15000,-8;16000,-6;17000,-4;18000,-2;19000,-1;20000,2;21000,4;22000,6;23000,8;24000,10;25000,12;26000,14;27000,15;28000,16;29000,15;30000,14;31000,12;32000,10;33000,8;34000,6;35000,4;36000,2;37000,-1;38000,-2;39000,-4;40000,-6;41000,-8;42000,-10;43000,-12;44000,-14;45000,-15;46000,-16;47000,-17;48000,0'

Acknowledgement

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Thanks to the specific help

The tokamak GOLEM controll SW @