Title :
A monolithic analog multiplexer for the ALEPH electromagnetic calorimeter adapted to operation of LEP at high luminosity
Author :
Veillet, J.J. ; Richer, J.P. ; Chase, R.L. ; Ardelean, J.
Author_Institution :
Lab. de l´´Accel. Lineaire, Univ. de Paris-Sud, Orsay, France
Abstract :
The hybrid analog multiplexer, in use on the ALEPH experiment at the Large Electron-Positron Collider (LEP) is a variation of a previously described system which was designed for four-bunch operation of LEP, corresponding to a beam crossing period of 22.5 mu s, and is not compatible with the proposed 36-bunch (2.5- mu s period) operation. The system described operates with a beam crossing period only slightly longer than the trigger delay time and at counting rates greater than 10/sup 4//s per channel without sacrificing the ease of calibration of the previous system.<>
Keywords :
CMOS integrated circuits; analogue processing circuits; calorimeters; electron accelerators; multiplexing equipment; nuclear electronics; particle beam diagnostics; particle detectors; storage rings; trigger circuits; 36-bunch; ALEPH electromagnetic calorimeter; LEP; Large Electron-Positron Collider; beam crossing period; calibration; counting rates; four-bunch operation; high luminosity; monolithic analog multiplexer; trigger delay time; Calibration; Capacitance; Circuits; Delay effects; Detectors; MOS capacitors; Multiplexing; Structural beams; Switches; Voltage;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference, 1991., Conference Record of the 1991 IEEE
Conference_Location :
Santa Fe, NM, USA
Print_ISBN :
0-7803-0513-2
DOI :
10.1109/NSSMIC.1991.259017
