Radio Electronics Department

HEPD    PNPI








Radio Electronics Department


CSC/GEM HV


The CMS muon endcap High Voltage System(status and upgrade)

S.Volkov,   N.Isaev, S.Bondarev, A.Myl'nikova.

HV SPS  module - The page opens in a separate window
    Technical characteristics of HV SPS high-voltage segmented voltage source:

  • Number of high voltage outputs -9
  • The maximum output voltage for each output is -4kV
  • The maximum output current for each output is -2.5mA
  • Output voltage control range -0V-4kV
  • Accuracy of output voltage setting +/- 1V
  • Accuracy of monitoring of output voltage +/- 1.5V
  • Accuracy of monitoring of output current -10 ?A
  • Pulsations no more than -100mV
  • Voltage and current overload protection   - programmable
  • Polarity switching +/-   - programmable
  • The module is running a Linux PCI-exress Host card
  More see the presentation "The CMS muon endcap High Voltage System(status and upgrade)", presented at the HEPD Seminar - 24 October, 2017.





















CMS/GEM HV

High Voltage system for triple GEM CMS detector

Appearance of the prototype CMS GEM HV  - The page opens in a separate window The high-voltage programmable voltage source - The page opens in a separate window The high-voltage distribution unit - The page opens in a separate window
Fig.1
Prototype front-view
Fig.2
Primary High Voltage
power supply
Fig.3
HV Distribution Board


High Voltage system for triple GEM CMS detector.

The prototype of HV system for supply triple GEM detectors is designed. It is consist of two modules - primary HV power supply and HV Distribution Board(DB). The primary HV voltage supply service high voltage for few DB modules.

Each DB work out 7 negative HV levels to powering of 7 electrodes triple GEM detector. Up to 10 independent GEM segments can be supplied from single DB.

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