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Negative ion drift gas mixtures in GEM detector - Application to axion ->gamma gamma search
Conference proceeding

Negative ion drift gas mixtures in GEM detector - Application to axion ->gamma gamma search

R Ayad, Shipsey, J Miyamoto, C J Martoff, R Ayad, M Katz-Hyman, G Bonvicini and Negative Ion Microstructures Colla
2003 IEEE NUCLEAR SCIENCE SYMPOSIUM, CONFERENCE RECORD, VOLS 1-5, pp.870-872
IEEE Nuclear Science Symposium and Medical Imaging Conference
01/01/2004

Abstract

Imaging Science & Photographic Technology Life Sciences & Biomedicine Nuclear Science & Technology Radiology, Nuclear Medicine & Medical Imaging Science & Technology Technology
We report on preliminary tests of a 2x2 cm(2) GEM detector in a negative ion drift chamber [2]. Stability and gas gain results for several negative ion gas mixtures are reported. The micro-structured detectors work reliably in negative ion gas mixtures based on CS2 and achieve gains comparable with those obtained in conventional electron drift gases.

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