CATS, a low pressure multiwire proportionnal chamber for secondary beam tracking at GANIL

被引：89

作者：

Ottini-Hustache, S

Mazur, C

Auger, F ^{[1
]}

Musumarra, A

Alamanos, N

Cahan, B

Gillibert, A

Lagoyannis, A

Maillard, O

Pollacco, E

Sida, JL

Riallot, M

机构：

[1] CEA, DAPNIA, SPhN, F-91191 Gif Sur Yvette, France

[2] CEA, SED, DAPNIA, F-91191 Gif Sur Yvette, France

[3] CEA, SEI, DAPNIA, F-91191 Gif Sur Yvette, France

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1999年 / 431卷 / 03期

关键词：

low pressure multiwire proportionnal chambers; stripped cathode charge read-out; exotic beam detectors;

D O I：

10.1016/S0168-9002(99)00380-0

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A beam detector system, CATS (Chambre A Trajectoires de Saclay), was designed to provide event-by-event particle tracking in experiments with radioactive beams at GANIL. It consists of two low pressure multiwire proportionnal chambers with one plane of anode wires placed between two cathode planes (active area: 70 x 70 mm(2)), respectively segmented into 28 vertical or horizontal strips (2.54 mm wide). The anode wires deliver a time signal allowing a time of flight measurement with an accuracy between 440 ps and 1.2 ns, depending on the energy loss of incident particles in the detector. The cathode strips are individually read out and the position of incoming particles is reconstructed using a charge centroid finding algorithm. A spatial resolution of 400 mu m (700 mu m) was achieved during in beam experiment, with a counting rate of 1.5 x 10(5) (10(6)) particles per second. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：476 / 484

页数：9

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