Tokamak GOLEM - Shot Database - #48995

Time stamp25-05-20 19:38:12The session missionExperiments/PlasmaEdge/ZonalFlows/Nanobashvili-2025-SciProjFull steamThe session ID 48995 The discharge commentMaster testDischarge 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: \(p\sub{chamber}\sup{discharge,before}\)=0.58 mPa; \(p\sub{chamber}\sup{discharge,pre}\)=14.90 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:\(\Delta t\sub{p}\)=29.02 ms (from:\(t\sub{start}\)=2.39 ms,to:\(t\sub{end}\)=31.41 ms)

    Plasma parameters:

• Loop voltage:\(\overline{U\sub{loop}}\)\(\)=5.22 ; \(\)=29.84 ; \(\)=0.00
• Toroidal magnetic field: \(\overline{B\sub{t}}\)=0.46 T; \(\max_{\tau \in [discharge]}B\sub{t}\)=0.57 T
• Plasma current: \(\overline{I\sub{p}}\)=5.62 kA; \(\max_{\tau \in [discharge]}I\sub{p}\)=7.93 kA; \(t\sub{Ip}\sup{max}\)=0.00 ms

Basic Diagnostics    

On stage diagnostics

Basic diagnostics Data flow:  Documentation:

Double rake probe Data flow:  Documentation:

Parameters:r_first_tip=80,X_mod='000000x111111',I_SilverBox=0.16

Langmuir & Ball-pen probe Data flow:  Documentation:

Parameters:r_lp_tip='80',S_mode_lp='float',R_lp_div_osc='10e3',R_lp_div_nosc='1e6',R_bpp_div_osc='10e3',R_bpp_d

Off stage diagnostics

Interferometry 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

Slow optical spectrometry Data flow:  Documentation:

Scintillation probes Data flow:  Documentation:

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

Timepix detector Data flow:  Documentation:

Mirnov coils @ Limiter Data flow:  Documentation:

Fast spectrometry Data flow:  Documentation:

Magnetohydrodynamic 16 mirnov coils ring 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;16000,0;17000,1;18000,1;19000,2;20000,3;21000,3;22000,4;23000,5;24000,5;25000,6;26000,7;27000,7;28000,8;29000,8;30000,9;31000,10;32000,10;33000,11;34000,12;35000,12;36000,13;37000,14;38000,14;39000,15;40000,16;41000,15;42000,14;43000,14;44000,13;45000,12;46000,12;47000,11;48000,10;49000,10;50000,0'

Biasing electrode

Parameters :main_switch='on',waveform='1000,0;5000,20;7500,-20;10000,0;14000,0',position=80

Acknowledgement

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Thanks to the specific help

The tokamak GOLEM controll SW @