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hv_bias [2015/10/19 12:45]
pereira [HV Manual control]
hv_bias [2019/01/23 13:44] (current)
pereira
Line 3: Line 3:
  
 ===== 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/​hv**. 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. It is convenient to verify the reference values with **Daniel Bazin**.+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.1445273112.txt.gz ยท Last modified: 2015/10/19 12:45 by pereira