GEM operation in negative ion drift gas mixtures

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• 作者：Miyamoto ; J. ; Shipsey ; I. ; Martoff ; C.J. ; Katz-Hyman ; M. ; Ayad ; R. ; Bonvincini ; G. ; Schreiner ; A.
• 关键词：29.40.Cs ; 29.40.Gx ; 95.35.+d ; Negative ion TPC ; Dark matter ; WIMP ; DRIFT ; GEM
• 刊名：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
• 出版年：2004
• 出版时间：July 1, 2004
• 年：2004
• 卷：526
• 期：3
• 页码：409-412
• 全文大小：227 K

文摘

The first operation of GEM gas gain elements in negative ion gas mixtures is reported. Gains up to several thousand were obtained from single-stage GEMs in CS₂ vapor at low pressure, and in mixtures of CS₂ with Argon and Helium, some near 1bar total pressure.