A CaMoO4Crystal Low Temperature Detector for the AMoRE Neutrinoless Double Beta Decay Search-Reference-Cited by-同舟云学术

A CaMoO4Crystal Low Temperature Detector for the AMoRE Neutrinoless Double Beta Decay Search

Published:2015 Issue: Volume:2015 Page:1-7
ISSN:1687-7357
Container-title:Advances in High Energy Physics
language:en
Short-container-title:Advances in High Energy Physics

Author:

Kim G. B.¹²³,Choi S.²,Danevich F. A.⁴,Fleischmann A.⁵,Kang C. S.¹³,Kim H. J.⁶,Kim S. R.¹³,Kim Y. D.¹⁷,Kim Y. H.¹³⁸,Kornoukhov V. A.⁹,Lee H. J.¹³,Lee J. H.³,Lee M. K.³,Lee S. J.³¹⁰,So J. H.¹³,Yoon W. S.¹³⁸

Affiliation:

1. Institute for Basic Science, Daejeon 305-811, Republic of Korea

2. Department of Physics and Astronomy, Seoul National University, Seoul 151-747, Republic of Korea

3. Korea Research Institute of Standards and Science, Daejeon 305-340, Republic of Korea

4. Institute for Nuclear Research, 03680 Kyiv, Ukraine

5. Kirchhoff-Institut für Physik, Universität Heidelberg, 69120 Heidelberg, Germany

6. Physics Department, Kyungpook National University, Daegu 702-701, Republic of Korea

7. Department of Physics, Sejong University, Seoul 143-747, Republic of Korea

8. Korea University of Science and Technology, Daejeon 305-350, Republic of Korea

9. Institute for Theoretical and Experimental Physics, 117218 Moscow, Russia

10. NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA

Abstract

We report the development of a CaMoO4crystal low temperature detector for the AMoRE neutrinoless double beta decay(0νββ)search experiment. The prototype detector cell was composed of a 216 g CaMoO4crystal and a metallic magnetic calorimeter. An overground measurement demonstrated FWHM resolution of 6–11 keV for full absorption gamma peaks. Pulse shape discrimination was clearly demonstrated in the phonon signals, and 7.6 σof discrimination power was found for theαandβ/γseparation. The phonon signals showed rise-times of about 1 ms. It is expected that the relatively fast rise-time will increase the rejection efficiency of two-neutrino double beta decay pile-up events which can be one of the major background sources in0νββsearches.

Funder

Institute for Basic Science, Korea

Publisher

Hindawi Limited

Subject

Nuclear and High Energy Physics

Link

http://downloads.hindawi.com/journals/ahep/2015/817530.pdf

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