Title :
An aging study of double GEMs in Ar-CO2
Author :
Miyamoto, Jun ; Shipsey, Ian
Author_Institution :
Dept. of Phys., Purdue Univ., West Lafayette, IN, USA
Abstract :
An aging study was performed using double GEMs and a printed circuit readout board (PCB) with an intense X-ray source in an ultra clean Argon-CO2 gas environment. The detector was irradiated continuously for about 1000 hours without interruption until a large amount of charge was accumulated. A single-wire chamber served as a monitoring device to check the beam and ambient conditions and gas chromatography was used to ensure no hydrocarbon materials were present in the gas mixture. The detector could withstand more than 25 mC/mm2 with only a slight sign of aging and the charge accumulated is presumably sufficient to conduct large-scale and long-term experiments in intense radiation fields
Keywords :
X-ray effects; argon; carbon compounds; drift chambers; Ar-CO2; double GEMs; gas chromatography; hydrocarbon materials; intense X-ray source; intense radiation fields; printed circuit readout board; single-wire chamber; Aging; Charge carrier processes; Condition monitoring; Degradation; Gas chromatography; Hydrocarbons; Physics; Printed circuits; Radiation detectors; Voltage;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2000 IEEE
Conference_Location :
Lyon
Print_ISBN :
0-7803-6503-8
DOI :
10.1109/NSSMIC.2000.949075
