Tokamak GOLEM - Shot Database - #36877

The date of discharge execution21-06-01 12:59:49 The session mission21_ST_MegiD_IsotopicStudies --> Isotopic studies The session ID36859 The discharge commentPROBLEM with probe position, from 70 againDischarge command./Dirigent.sh --discharge --UBt 1200 --TBt 1000 --Ucd 700 --Tcd 2000 --preionization 1 --gas He --pressure 15 --comment "PROBLEM with probe position, from 70 again" --diagnostics_langballpenprobe "r_LP_tip=70, f_fg=5000, u_fg=8, r_i=27" --ScanDefinition "36868 36869 36871 36873"

Technological parameters Working Gas: \(p\sub{chamber}\sup{discharge,before}\)=0.47 mPa; \(p\sub{chamber}\sup{discharge,pre}\)=6.16 mPa (\(p\sub{WG}\sup{request}\)= 15 mPa@\(X\sub{WG}\sup{request}\)=He ) Toroidal magnetic field: \(U\sub{B\sub{t}}\sup{request}\)=1200 V@\(t\sub{B\sub{t}}\sup{request}\)=1000.0 us Current drive field: \(U\sub{E\sub{cd}}\sup{request}\)=700 V@\(t\sub{cd}\sup{request}\)=2000.0 us

Plasma: Plasma: yes or no: ☑ Time parameters:\(\Delta t\sub{p}\)=6.94 ms (from:\(t\sub{start}\)=4.17 ms,to:\(t\sub{end}\)=11.11 ms)     Plasma parameters: Loop voltage:\(\overline{U\sub{loop}}\)\(\)=12.88 V; \(\maximum{{\tau \in [discharge]}U\sub{loop}}\)=19.80 V; \(U\sub{breakdown}\)=14.81 V Toroidal magnetic field: \(\overline{B\sub{t}}\)=0.27 T; \(\max_{\tau \in [discharge]}B\sub{t}\)=0.38 T Plasma current: \(\overline{I\sub{p}}\)=2.41 kA; \(\max_{\tau \in [discharge]}I\sub{p}\)=2.84 kA; \(t\sub{Ip}\sup{max}\)=8.29 ms

Basic Diagnostics    

On stage diagnostics

Data flow	measurement →		digitization →		analysis →
Name	Experiment setup		Data acquistition system		Raw data		Analysis results
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Other diagnostics

Data flow	measurement →		digitization →		analysis →
Name	Experiment setup		Data acquistition system		Raw data		Analysis results
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Analysis

Name	Analysis results
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Scan issues

for 36868 36869 36871 36873 + 36877

#36868     ./Dirigent.sh --discharge --UBt 1200 --TBt 1000 --Ucd 700 --Tcd 2000 --preionization 1 --gas He --pressure 15 --comment "u_bias to 140 V" --diagnostics_langballpenprobe "r_LP_tip=50, f_fg=5000, u_fg=7, r_i=27" --ScanDefinition "0"
#36869     ./Dirigent.sh --discharge --UBt 1200 --TBt 1000 --Ucd 700 --Tcd 2000 --preionization 1 --gas He --pressure 15 --comment "Experimental set-up OK, going back with probe" --diagnostics_langballpenprobe "r_LP_tip=55, f_fg=5000, u_fg=7, r_i=27" --ScanDefinition "36868"
#36871     ./Dirigent.sh --discharge --UBt 1200 --TBt 1000 --Ucd 700 --Tcd 2000 --preionization 1 --gas He --pressure 15 --comment "60 again, bias offset changed" --diagnostics_langballpenprobe "r_LP_tip=60, f_fg=5000, u_fg=7, r_i=27" --ScanDefinition "36868 36869"
#36873     ./Dirigent.sh --discharge --UBt 1200 --TBt 1000 --Ucd 700 --Tcd 2000 --preionization 1 --gas He --pressure 15 --comment "65 again, u_bias to 160 V" --diagnostics_langballpenprobe "r_LP_tip=65, f_fg=5000, u_fg=8, r_i=27" --ScanDefinition "36868 36869 36871"
#36877     ./Dirigent.sh --discharge --UBt 1200 --TBt 1000 --Ucd 700 --Tcd 2000 --preionization 1 --gas He --pressure 15 --comment "PROBLEM with probe position, from 70 again" --diagnostics_langballpenprobe "r_LP_tip=70, f_fg=5000, u_fg=8, r_i=27" --ScanDefinition "36868 36869 36871 36873"

Acknowledgement

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Thanks to the specific help

The tokamak GOLEM controll SW @