An automated system to control the polarization voltage of silicon detectors

Author

Altieri, S. ; Fossati, F. ; Lanza, A. ; Pinelli, T.

Author_Institution

Dipartimento di Fisica Nucl. e Teorica, Istituto Nazionale di Fisica Nucl., Pavia, Italy

Volume

42

Issue

2

fYear

1995

fDate

4/1/1995 12:00:00 AM

Firstpage

57

Lastpage

60

Abstract

A remote controlled system to maintain polarization voltage across a silicon detector within a user defined window is described. The system regulates silicon bias voltage, caused by increased leakage current due to radiation damage, by switching external resistors to maintain a constant voltage drop across the bias load resistor, independent of leakage current. This Z80 microprocessor based system links with the host computer by a RS-232 serial port. The voltage resolution of the system is less than 0.2 V in the worst case

Keywords

counter accessories; high energy physics instrumentation computing; radiation effects; silicon radiation detectors; 0.2 V; RS-232 serial port; Si bias voltage; Si detectors; Z80 microprocessor based system; automated system; bias load resistor; constant voltage drop; external resistors; host computer; leakage current; polarization voltage; radiation damage; remote controlled system; user defined window; voltage resolution; Automatic voltage control; Circuits; Control systems; Delay; Detectors; Leakage current; Polarization; Resistors; Silicon; Voltage control;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.372132

Filename

372132