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hv_bias [2013/12/14 15:42]
pereira [Object Scintillator] |
hv_bias [2013/12/14 15:47]
pereira [CRDCs] |
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| ===== General Information ===== | ===== General Information ===== |
| The [[Detectors#Tracking Parallel Plate Avalanche Counters (TPPAC)|TPPACs]], the [[Detectors#Ionization Chamber|Ion Chamber]], and the [[Detectors#Cathode Readout Drift Chambers (CRDC)|CRDCs]] have ISEG power supplies run through a single VME-based bias control. The computer interface for this bias control - the S800 Detector HV Control - is typically run on the **devop1** computer in data-U6 and is started by clicking on S800 HV under the Operations option on the taskbar. The [[Detectors#Plastic scintillators|Object scintillator]] and the [[Detectors#Plastic scintillators|FP Scintillator]] are each controlled separately as described below under the sections for each detector. | The [[Detectors#Tracking Parallel Plate Avalanche Counters (TPPAC)|TPPACs]], the [[Detectors#Ionization Chamber|Ion Chamber]], and the [[Detectors#Cathode Readout Drift Chambers (CRDC)|CRDCs]] have ISEG power supplies run through a single VME-based bias control. The computer interface for this bias control -- the S800 Detector HV Control -- is typically run on the **devop1** computer in data-U6 and is started by clicking on **S800 HV** under the Operations option on the taskbar. The [[Detectors#Plastic scintillators|Object scintillator]] and the [[Detectors#Plastic scintillators|FP Scintillator]] are each controlled separately as described below under the sections for each detector. |
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| ===== Object Scintillator ===== | ===== Object Scintillator ===== |
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| ===== CRDCs ===== | ===== CRDCs ===== |
| Each of the two detectors, CRDC1 and CRDC2, has a separate bias control for the anode and the drift electrode via the S800 Detector HV Control. | Each of the two detectors, [[Detectors#Cathode Readout Drift Chambers (CRDC)|CRDC1 and CRDC2]], has a separate bias control for the anode and the drift electrode via the S800 Detector HV Control. Please keep in mind that a change in the drift voltage of the CRDCs strongly effects the drift velocity of the electrons and a new mask calibration has to be done to be able to determine the y position of particles. |
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| ===== TPPACs ===== | ===== TPPACs ===== |
