Tokamak GOLEM - Shot Database - #48980

Time stamp25-05-20 17:36:18The session missionExperiments/PlasmaRegimes/MinimumStabilizationFull steamThe session ID 48969 The discharge commentchanged curr stab waveformDischarge command/Dirigent.sh --discharge --operation.discharge "style='standard'" --infrastructure.bt_ecd "U_Bt=900,t_Bt=0,U_cd=350,t_cd=250,O_Bt='CW',O_cd='CW'" --infrastructure.workinggas "S_mod ...

     Technological parameters

• Working Gas: \(p\sub{chamber}\sup{discharge,before}\)=0.68 mPa; \(p\sub{chamber}\sup{discharge,pre}\)=14.50 mPa (\(p\sub{WG}\sup{request}\)= 15 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: \(U\sub{E\sub{cd}}\sup{request}\)=350 V@\(t\sub{cd}\sup{request}\)=250.0 us

    Plasma:

• Plasma: yes or no: ☑
• Time parameters:\(\Delta t\sub{p}\)=36.19 ms (from:\(t\sub{start}\)=2.32 ms,to:\(t\sub{end}\)=38.51 ms)

    Plasma parameters:

• Loop voltage:\(\overline{U\sub{loop}}\)\(\)=4.27 ; \(\)=14.48 ; \(\)=0.00
• Toroidal magnetic field: \(\overline{B\sub{t}}\)=0.51 T; \(\max_{\tau \in [discharge]}B\sub{t}\)=0.57 T
• Plasma current: \(\overline{I\sub{p}}\)=6.60 kA; \(\max_{\tau \in [discharge]}I\sub{p}\)=7.58 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=350,t_cd=250,O_Bt='CW',O_cd='CW'

Working gas

Parameters :S_mode='p_wg',S_gas='H',p_H=15,U_v=22

Preionization

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

Position stabilization :

Parameters :main_switch='on',radial_switch='on',radial_waveform='1000,0;5000,-1;5500,-1;6000,-2;6500,-2;7000,-3;7500,-3;8000,-4;8500,-4;9000,-5;9500,-5;10000,-6;10500,-6;11000,-7;11500,-7;12000,-8;13000,-9;14000,-10;15000,-11;16000,-12;17000,-13;18000,-14;19000,-15;20000,-16;21000,-17;22000,-18;23000,-19;24000,-20;50000,0',vertical_switch='on',vertical_waveform='1000,0;5000,-1;6000,-1;7000,-1;8000,-1;9000,-5;10000,-5;11000,-5;12000,-5;13000,-12;14000,-12;15000,-12;17000,-12;19000,-20;50000,0'

Current stabilization

Parameters :main_switch='on',waveform='1000,0;15000,0;15500,0;16000,0;16500,1;17000,1;17500,2;18000,2;18500,2;19000,3;19500,3;20000,4;20500,4;21000,4;21500,5;22000,5;22500,6;23000,6;23500,6;24000,7;24500,7;25000,8;25500,8;26000,8;26500,9;27000,9;27500,10;28000,10;28500,10;29000,11;29500,11;30000,12;30500,12;31000,12;31500,13;32000,13;32500,14;33000,14;33500,14;34000,15;34500,15;35000,16;35500,16;36000,16;36500,17;37000,17;37500,18;38000,18;38500,18;39000,19;39500,19;40000,20;40500,19;41000,19;41500,18;42000,18;42500,18;43000,17;43500,17;44000,16;44500,16;45000,16;45500,15;46000,15;46500,14;47000,14;47500,14;48000,13;48500,13;49000,12;49500,12;50000,12;'

Acknowledgement

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Thanks to the specific help

The tokamak GOLEM controll SW @