Discrimination of nuclear recoils from alpha particles with superheated liquids

被引：66

作者：

Aubin, F. ^{[1
]}

Auger, M. ^{[1
]}

Genest, M-H ^{[1
]}

Giroux, G. ^{[1
]}

Gornea, R. ^{[1
]}

Faust, R. ^{[1
]}

Leroy, C. ^{[1
]}

Lessard, L. ^{[1
]}

Martin, J-P ^{[1
]}

Morlat, T. ^{[1
]}

Piro, M-C ^{[1
]}

Starinski, N. ^{[1
]}

Zacek, V. ^{[1
]}

Beltran, B. ^{[2
]}

Krauss, C. B. ^{[2
]}

Behnke, E. ^{[3
]}

Levine, I. ^{[3
]}

Shepherd, T. ^{[3
]}

Nadeau, P. ^{[4
]}

Wichoski, U. ^{[4
]}

Pospisil, S. ^{[5
]}

Stekl, I. ^{[5
]}

Sodomka, J. ^{[5
]}

Clark, K. ^{[6
]}

Dai, X. ^{[6
]}

Davour, A. ^{[6
]}

Levy, C. ^{[6
]}

Noble, A. J. ^{[6
]}

Storey, C. ^{[6
]}

机构：

[1] Univ Montreal, Dept Phys, Montreal, PQ H3C 3J7, Canada

[2] Univ Alberta, Dept Phys, Edmonton, AB T6G 2G7, Canada

[3] Indiana Univ, Dept Phys & Astron, South Bend, IN 46634 USA

[4] Laurentian Univ, Dept Phys, Sudbury, ON P3E 2C6, Canada

[5] Czech Tech Univ, Inst Expt & Appl Phys, CZ-12800 Prague, Czech Republic

[6] Queens Univ, Dept Phys, Kingston, ON K7L 3N6, Canada

来源：

NEW JOURNAL OF PHYSICS | 2008年 / 10卷

基金：

加拿大自然科学与工程研究理事会; 加拿大创新基金会; 美国国家科学基金会;

关键词：

D O I：

10.1088/1367-2630/10/10/103017

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The PICASSO collaboration observed for the first time a significant difference between the acoustic signals induced by neutrons and alpha particles in a detector based on superheated liquids. This new discovery offers the possibility of improved background suppression and could be especially useful for dark matter experiments. This new effect may be attributed to the formation of multiple bubbles on alpha tracks, compared to single nucleations created by neutron-induced recoils.

引用

页数：11

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