CMS_GEM_en - Products

Radio Electronics Department

HEPD PNPI

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


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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