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Characterization of the CRESST detectors by neutron induced nuclear recoils

Published online by Cambridge University Press:  30 May 2009

E. Pécontal ,
T. Buchert ,
Ph. Di Stefano ,
Y. Copin ,
C. Coppi ,
C. Ciemniak ,
F. von Feilitzsch ,
A. Gütlein ,
H. Hagn  and
C. Isaila
...Show all authors
C. Coppi
Affiliation:
Physik-Department E15, Technische Universität München, 85747 Garching, Germany
C. Ciemniak
Affiliation:
Physik-Department E15, Technische Universität München, 85747 Garching, Germany
F. von Feilitzsch
Affiliation:
Physik-Department E15, Technische Universität München, 85747 Garching, Germany
A. Gütlein
Affiliation:
Physik-Department E15, Technische Universität München, 85747 Garching, Germany
H. Hagn
Affiliation:
Physik-Department E15, Technische Universität München, 85747 Garching, Germany
C. Isaila
Affiliation:
Physik-Department E15, Technische Universität München, 85747 Garching, Germany
J. Jochum
Affiliation:
Eberhard-Karls-Universität Tübingen, 72076 Tübingen, Germany
M. Kimmerle
Affiliation:
Eberhard-Karls-Universität Tübingen, 72076 Tübingen, Germany
J.-C. Lanfranchi
Affiliation:
Physik-Department E15, Technische Universität München, 85747 Garching, Germany
S. Pfister
Affiliation:
Physik-Department E15, Technische Universität München, 85747 Garching, Germany
W. Potzel
Affiliation:
Physik-Department E15, Technische Universität München, 85747 Garching, Germany
W. Rau
Affiliation:
Department of Physics, Queen's University, Kingston, Ontario K7L 3N6, Canada
S. Roth
Affiliation:
Physik-Department E15, Technische Universität München, 85747 Garching, Germany
K. Rottler
Affiliation:
Eberhard-Karls-Universität Tübingen, 72076 Tübingen, Germany
C. Sailer
Affiliation:
Eberhard-Karls-Universität Tübingen, 72076 Tübingen, Germany
S. Scholl
Affiliation:
Eberhard-Karls-Universität Tübingen, 72076 Tübingen, Germany
I. Usherov
Affiliation:
Eberhard-Karls-Universität Tübingen, 72076 Tübingen, Germany
W. Westphal
Affiliation:
Physik-Department E15, Technische Universität München, 85747 Garching, Germany Deceased
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Abstract

CRESST is an experiment for the direct detection of dark matter particles via nuclear recoils. The CRESST detectors, based on CaWO4 scintillating crystals, are able to discriminate γ and β background by simultaneously measuring the light and phonon signals produced by particle interactions. The discrimination of the background is possible because of the different light output (Quenching Factor, QF) for nuclear and electron recoils. In this article a measurement is shown, aimed at the determination of the QFs of the different nuclei (O, Ca, W) of the detector crystal at 40–60 mK using an 11 MeV neutron beam produced at the Maier-Leibnitz-Laboratorium in Garching (MLL).

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 36: Dark Energy and Dark Matter: Observations, Experiments and Theories , 2009 , pp. 315 - 317
Copyright
© EAS, EDP Sciences, 2009

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References

Angloher, G., et al. [arXiv:0809.1829 2008]
Angloher, G., et al., 2005, Astropart. Phys., 23, 325 CrossRef
Lanfranchi, J.C., et al. [arXiv:0810.0423 2008]
Westphal, W., & München, T.U., 2008, http://www.e15.physik.tu-muenchen.de/fileadmin/downloads/thesis/phd/2008_Wolfgang_Westphal.pdf
Bavykina, I., et al., 2007 [arXiv:0707.0766v1] [physics.ins-det], 5 July