Title :
A current monitor system on a high-voltage level for a cylindrical drift chambers
Author :
Matsuoka, N. ; Nagayama, K. ; Yokota, Y.
Author_Institution :
Res. Center for Nucl. Phys., Osaka Univ., Japan
Abstract :
A current monitor system operated at the high-voltage end of the resistor chain of a jet-type cylindrical drift chamber has been made in order to protect the chamber from damages due to discharge. It consists of four over-current trip circuits at the high-voltage end and an interlock generator at the ground level connected by optical fibers. For the over-current trip circuits, low supply-current devices are chosen to enable to be powered by a 6-volt battery. The circuit is sensitive to an excess of a few μA of the resistor chain currents
Keywords :
drift chambers; nuclear electronics; overcurrent protection; current monitor system; high-voltage level; interlock generator; jet-type cylindrical drift chamber; low supply-current devices; over-current trip circuits; Batteries; Cathodes; Circuits; Monitoring; Nuclear physics; Optical fibers; Power system protection; Resistors; Voltage; Wires;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2000 IEEE
Conference_Location :
Lyon
Print_ISBN :
0-7803-6503-8
DOI :
10.1109/NSSMIC.2000.949912
