A new high-background-rejection dark matter Ge cryogenic detector

被引：71

作者：

Broniatowski, A. ^{[3
]}

Defay, X. ^{[3
]}

Armengaud, E. ^{[7
]}

Berge, L. ^{[3
]}

Benoit, A. ^{[2
]}

Besida, O. ^{[7
]}

Bluemer, J. ^{[4
,5
]}

Chantelauze, A. ^{[5
]}

Chapellier, M. ^{[3
]}

Chardin, G. ^{[3
]}

Charlieux, F. ^{[1
]}

Collin, S. ^{[3
]}

Crauste, O. ^{[3
]}

De Jesus, M. ^{[1
]}

Di Stefano, P. ^{[1
]}

Dolgorouki, Y. ^{[3
]}

Domange, J. ^{[3
]}

Dumoulin, L. ^{[3
]}

Eitel, K. ^{[5
]}

Gascon, J. ^{[1
]}

Gerbier, G. ^{[7
]}

Gros, M. ^{[7
]}

Hannawald, M. ^{[7
]}

Herve, S. ^{[7
]}

Juillard, A. ^{[1
,3
]}

Kluck, H. ^{[5
]}

Kozlov, V. ^{[5
]}

Lemrani, R. ^{[7
]}

Lubashevskiy, A. ^{[1
]}

Marrache, C. ^{[3
]}

Marnieros, S. ^{[3
]}

Navick, X. -F. ^{[7
]}

Nones, C. ^{[3
]}

Olivieri, E. ^{[3
]}

Pari, P. ^{[6
]}

Paul, B. ^{[7
]}

Rozov, S. ^{[1
]}

Sanglard, V. ^{[1
]}

Scorza, S. ^{[1
]}

Semikh, S. ^{[8
]}

Verdier, M. -A. ^{[1
]}

Vagneron, L. ^{[1
]}

Yakushev, E. ^{[8
]}

机构：

[1] Univ Lyon 1, IPNL, CNRS, IN2P3, F-69622 Villeurbanne, France

[2] CNRS Neel, F-38042 Grenoble 9, France

[3] Univ Paris 11, CSNSM, CNRS, IN2P3, F-91405 Orsay, France

[4] Univ Karlsruhe TH, Inst Expt Kernphys, D-76128 Karlsruhe, Germany

[5] Forschungszentrum Karlsruhe, Inst Kernphys, D-76021 Karlsruhe, Germany

[6] CEA, Ctr Etud Saclay, IRAMIS, F-91191 Gif Sur Yvette, France

[7] CEA, Ctr Etud Saclay, IRFU, F-91191 Gif Sur Yvette, France

[8] JINR, Lab Nucl Problems, Dubna 141980, Moscow Region, Russia

来源：

PHYSICS LETTERS B | 2009年 / 681卷 / 04期

关键词：

Dark Matter; Cryogenic Ge detectors; Coplanar grid; Surface event rejection; SURFACE EVENT REJECTION; GERMANIUM DETECTORS; IONIZATION; SIGNALS; SEARCH;

D O I：

10.1016/j.physletb.2009.10.036

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A new design of a cryogenic germanium detector for dark matter search is presented, taking advantage of the coplanar grid technique of event localisation for improved background discrimination. Experiments performed with prototype devices in the EDELWEISS II setup at the Modane underground facility demonstrate the remarkably high efficiency of these devices for the rejection of low-energy beta. approaching 10(5). This opens the road to investigate the range beyond 10(-8) pb in the WIMP-nucleon collision cross-sections, as proposed in the EURECA project of a one-toil cryogenic detector mass. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：305 / 309

页数：5

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