A time projection chamber for the three-dimensional reconstruction of two-proton radioactivity events

被引：27

作者：

Blank, B. ^{[1
]}

Hay, L. ^{[1
]}

Huikari, J. ^{[1
]}

Leblanc, S. ^{[1
]}

List, S. ^{[1
]}

Pedroza, J-L ^{[1
]}

Ascher, P. ^{[1
]}

Audirac, L. ^{[1
]}

Borcea, C. ^{[1
,2
]}

Canchel, G. ^{[1
]}

Delalee, F. ^{[1
]}

Demonchy, C. E. ^{[1
]}

Dossat, C. ^{[1
,3
]}

Giovinazzo, J. ^{[1
]}

Hellmuth, P. ^{[1
]}

Marchand, C. ^{[1
]}

Matea, I. ^{[1
]}

de Oliveira, R. ^{[4
]}

Pibernat, J. ^{[1
]}

Rebii, A. ^{[1
]}

Serani, L. ^{[1
]}

Thomas, J. C. ^{[5
]}

机构：

[1] Univ Bordeaux 1, CEN Bordeaux Gradignan, CNRS, IN2P3,UMR 5797, F-33175 Gradignan, France

[2] NIPNE, Bucharest, Romania

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

[4] CERN, CH-1211 Geneva, Switzerland

[5] CNRS, IN2P3, CEA, DSM, F-14076 Caen 5, France

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2010年 / 613卷 / 01期

关键词：

Two-proton radioactivity; Time projection chamber; ASIC electronics; PROTON-RICH NUCLEI; 1ST OBSERVATION; SHELL; DECAY; GEM; AMPLIFICATION; DETECTORS; FE-45;

D O I：

10.1016/j.nima.2009.10.140

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Two-proton radioactivity was observed in 2002 in the decay of (45)Fe. However, the experiments performed at that time did not allow the observation of the two protons directly. We present here a new setup based on the principle of a time-projection chamber that enabled us for the first time to identify directly the two protons. The new setup permits the observation and reconstruction in three dimensions of the traces of the protons and to determine thus their individual energies and their relative angle. We will discuss the setup in all necessary details and describe its performances in the context of two-proton radioactivity and beta- delayed two-proton emission studies. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：65 / 78

页数：14

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