Surface event rejection of the EDELWEISS cryogenic germanium detectors based on NbSi thin film sensors

被引：10

作者：

Marnieros, S. ^{[1
]}

Berge, L. ^{[1
]}

Broniatowski, A. ^{[1
]}

Chapellier, M. ^{[1
]}

Collin, S. ^{[1
]}

Crauste, O. ^{[1
]}

Defay, X. ^{[1
]}

Dolgorouky, Y. ^{[1
]}

Dumoulin, L. ^{[1
]}

Juillard, A. ^{[1
]}

Lalu, F. ^{[1
]}

Nones, C. ^{[1
]}

Olivieri, E. ^{[1
]}

机构：

[1] CNRS, IN2P3, Ctr Spectrometrie Nucl & Spectrometrie Masse, F-91405 Orsay, France

来源：

JOURNAL OF LOW TEMPERATURE PHYSICS | 2008年 / 151卷 / 3-4期

关键词：

Dark matter; cryogenic detectors; Ge bolometer; surface event rejection; NbSi thermistor;

D O I：

10.1007/s10909-008-9753-2

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Near-surface-events are a major limitation to the performance of cryogenic massive germanium heat and ionisation detectors for dark matter search, due to their incomplete charge collection. We present here a powerful method of surface event identification based on the transient heat signal of a Ge bolometer, equipped with two NbSi high impedance thin film sensors. Calibration runs using electrons and low energy gamma particles from a Cd-109 source show highly effective surface event rejection down to the heat threshold energy. Neutron and gamma source calibrations were realised to get information on the fiducial volume of the Ge absorber. First results from low background data taking are discussed.

引用

页码：835 / 840

页数：6

共 9 条

[1] Limits on spin-independent interactions of weakly interacting massive particles with nucleons from the two-tower run of the cryogenic dark matter search [J].

Akerib, DS ;

Attisha, MJ ;

Bailey, CN ;

Baudis, L ;

Bauer, DA ;

Brink, PL ;

Brusov, PP ;

Bunker, R ;

Cabrera, B ;

Caldwell, DO ;

Chang, CL ;

Cooley, J ;

Crisler, MB ;

Cushman, P ;

Daal, M ;

Dixon, R ;

Dragowsky, MR ;

Driscoll, DD ;

Duong, L ;

Ferril, R ;

Filippini, J ;

Gaitskell, RJ ;

Golwala, SR ;

Grant, DR ;

Hennings-Yeomans, R ;

Holmgren, D ;

Huber, ME ;

Kamat, S ;

Leclercq, S ;

Lu, A ;

Mahapatra, R ;

Mandic, V ;

Meunier, P ;

Mirabolfathi, N ;

Nelson, H ;

Nelson, R ;

Ogburn, RW ;

Perera, TA ;

Pyle, M ;

Ramberg, E ;

Rau, W ;

Reisetter, A ;

Ross, RR ;

Sadoulet, B ;

Sander, J ;

Savage, C ;

Schnee, RW ;

Seitz, DN ;

Serfass, B ;

Sundqvist, KM .

PHYSICAL REVIEW LETTERS, 2006, 96 (01)

[2]

BRONIATOWSKI A, 2007, LTD12 P

[3]

DOLGOROUKY Y, 2007, LTD12 P

[4] VOLTAGE-ASSISTED CALORIMETRIC IONIZATION DETECTOR [J].

LUKE, PN .

JOURNAL OF APPLIED PHYSICS, 1988, 64 (12) :6858-6860

[5] Low temperature specific heat of NbSi Anderson insulator measured by cryogenic bolometry [J].

Marnieros, S ;

Bergé, L ;

Juillard, A ;

Dumoulin, L .

PHYSICA B-CONDENSED MATTER, 1999, 259-61 :862-863

[6]

Neganov BS., 1985, Otkryt Izobret, V146, P215

[7]

OLIVIERI E, 2007, LTD12 P

[8] Final results of the EDELWEISS-I dark matter search with cryogenic heat-and-ionization Ge detectors -: art. no. 122002 [J].

Sanglard, V ;

Benoit, A ;

Bergé, L ;

Blümer, J ;

Broniatowski, A ;

Censier, B ;

Chabert, L ;

Chapellier, M ;

Chardin, G ;

Charvin, P ;

Collin, S ;

De Jésus, M ;

Deschamps, H ;

Di Stefano, P ;

Dolgorouky, Y ;

Drain, D ;

Dumoulin, L ;

Eitel, K ;

Fesquet, M ;

Fiorucci, S ;

Gascon, J ;

Gerlic, E ;

Gerbier, G ;

Goldbach, C ;

Goyot, M ;

Gros, M ;

Hervé, S ;

Horn, M ;

Juillard, A ;

Karolak, M ;

Kikuchi, C ;

de Lesquen, A ;

Luca, M ;

Mallet, J ;

Marnieros, S ;

Mosca, L ;

Navick, XF ;

Nollez, G ;

Pari, P ;

Schoeffel, L ;

Stern, M ;

Vagneron, L ;

Villar, V .

PHYSICAL REVIEW D, 2005, 71 (12)

[9] A solution to the dead-layer problem in ionization and phonon-based dark matter detectors [J].

Shutt, T ;

Emes, J ;

Haller, EE ;

Hellmig, J ;

Sadoulet, B ;

Seitz, D ;

Young, BA ;

White, S .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2000, 444 (1-2) :340-344

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