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A CaMoO4 crystal low temperature detector for the AMoRE neutrinoless double beta decay search

We report the development of a CaMoO4 crystal low temperature detector for the AMoRE neutrinoless double beta decay search experiment. The prototype detector cell was composed of a 216 g CaMoO4 crystal and a metallic magnetic calorimeter. An overground measurement demonstrated FWHM resolution of 6-1...

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Main Authors: Kim, G. B. (Author) , Choi, S. (Author) , Danevich, F. A. (Author) , Fleischmann, Andreas (Author) , Kang, C. S. (Author) , Kim, H. J. (Author) , Kim, S. R. (Author) , Kim, Y. D. (Author) , Kim, Y. H. (Author) , Kornoukhov, V. A. (Author) , Lee, H. J. (Author) , Lee, J. H. (Author) , Lee, M. K. (Author) , Lee, S. J. (Author) , So, J. H. (Author) , Yoon, W. S. (Author)
Format: Article (Journal)
Language:English
Published: 12 May 2015
In: Advances in high energy physics
Year: 2015, Volume: 2015
ISSN:1687-7365
DOI:10.1155/2015/817530
Online Access:Resolving-System, lizenzpflichtig, Volltext: https://doi.org/10.1155/2015/817530
Verlag, lizenzpflichtig, Volltext: https://www.hindawi.com/journals/ahep/2015/817530/
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Author Notes:G.B. Kim, S. Choi, F.A. Danevich, A. Fleischmann, C.S. Kang, H.J. Kim, S.R. Kim, Y.D. Kim, Y.H. Kim, V.A. Kornoukhov, H.J. Lee, J.H. Lee, M.K. Lee, S.J. Lee, J.H. So, and W.S. Yoon
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Summary:We report the development of a CaMoO4 crystal low temperature detector for the AMoRE neutrinoless double beta decay search experiment. The prototype detector cell was composed of a 216 g CaMoO4 crystal 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  of discrimination power was found for the and separation. 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 in searches.
Item Description:Gesehen am 01.07.2020
Physical Description:Online Resource
ISSN:1687-7365
DOI:10.1155/2015/817530

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