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hv_bias [2019/01/23 13:43]
pereira
hv_bias [2019/01/23 13:44] (current)
pereira
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 ===== HV Remote control ===== ===== HV Remote control =====
-The high-voltage of the [[Detectors#​Tracking Parallel Plate Avalanche Counters (TPPAC)|TPPACs]],​ [[Detectors#​Ionization Chamber|Ion Chamber]], the [[Detectors#​Cathode Readout Drift Chambers (CRDC)|CRDCs]],​ [[Detectors#​Plastic scintillators|FP Scintillator]],​ and [[Detectors#​Hodoscope|Hodoscope]] are remotely controlled via GUI control panel (see figure below). The GUI can be opened from the desktop of the [[Software#​u6pc5 (data U6)|u6pc5]] control computer by clicking in the icon **High Voltage**, or from a Linux terminal by typing ''/​usr/​bin/​wish mpod.tcl''​ from directory **/​user/​s800/​Documents/​Run/​s800mpod**. This application allows also to set a maximum limit in the detector current. The voltages of these detectors depend on the Z of the fragments to be measured and their energy. The figure below shows the HV GUI during experiment e10002, which used Si-26 and Al-25 fragments at around 115 MeV/u. These voltages can be used as a reference before starting an experiment. However, the final values will have to be modified during the beam tuning in order to optimize the performance of the detectors. ​+The high-voltage of the [[Detectors#​Tracking Parallel Plate Avalanche Counters (TPPAC)|TPPACs]],​ [[Detectors#​Ionization Chamber|Ion Chamber]], the [[Detectors#​Cathode Readout Drift Chambers (CRDC)|CRDCs]],​ [[Detectors#​Plastic scintillators|FP Scintillator]],​ and [[Detectors#​Hodoscope|Hodoscope]] are remotely controlled via GUI control panel (see figure below). The GUI can be opened from the desktop of the [[Software#​u6pc5 (data U6)|u6pc5]] control computer by log in as s800 user and clicking in the icon **High Voltage**, or from a Linux terminal ​(again, log in as s800 user) by typing ''/​usr/​bin/​wish mpod.tcl''​ from directory **/​user/​s800/​Documents/​Run/​s800mpod**. This application allows also to set a maximum limit in the detector current. The voltages of these detectors depend on the Z of the fragments to be measured and their energy. The figure below shows the HV GUI during experiment e10002, which used Si-26 and Al-25 fragments at around 115 MeV/u. These voltages can be used as a reference before starting an experiment. However, the final values will have to be modified during the beam tuning in order to optimize the performance of the detectors. ​
  
 {{:​wiki:​hv-gui.png?​700|GUI control panel of the S800 detectors HV}} {{:​wiki:​hv-gui.png?​700|GUI control panel of the S800 detectors HV}}
hv_bias.txt ยท Last modified: 2019/01/23 13:44 by pereira