First test of a Micromegas TPC in a magnetic field

被引:12
作者
Colas, P [1 ]
Giomataris, I
Lepeltier, V
Ronan, M
机构
[1] CEA Saclay, DAPNIA, F-91191 Gif Sur Yvette, France
[2] LAL Orsay, Orsay, France
[3] LBNL Berkeley, Berkeley, CA USA
关键词
TPC; micromegas; gaseous detectors; linear collider;
D O I
10.1016/j.nima.2004.07.123
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
Since the summer of 2003, a large Micromegas Time Projection Chamber (TPC) prototype (1000 channels, 50 cm drift, 50 cm diameter) has been operated in a 2T superconducting magnet at Saclay. A description of this apparatus and first results from cosmic ray tests are presented. Additional measurements using simpler detectors with a laser source, an X-ray gun and radioactive sources are discussed. Drift velocity and gain measurements, electron attachment and aging studies for a Micromegas TPC are presented. In particular, using simulations and measurements, it is shown that an Argon-CF4 mixture is optimal for operation at a future Linear Collider. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:181 / 185
页数:5
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