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

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; W. S. Yoon

doi:10.1155/2015/817530

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

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, W. S. Yoon

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Abstract

We report the development of a CaMoO₄ crystal low temperature detector for the AMoRE neutrinoless double beta decay (0 β β) 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 σ of discrimination power was found for the α and β/γ 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 0 β β searches.

Original language	English
Article number	817530
Journal	Advances in High Energy Physics
Volume	2015
DOIs	https://doi.org/10.1155/2015/817530
State	Published - 2015

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Kim, G. B., Choi, S., Danevich, F. A., Fleischmann, A., Kang, C. S., Kim, H. J., Kim, S. R., Kim, Y. D., Kim, Y. H., Kornoukhov, V. A., Lee, H. J., Lee, J. H., Lee, M. K., Lee, S. J., So, J. H., & Yoon, W. S. (2015). A CaMoO₄ crystal low temperature detector for the AMoRE neutrinoless double beta decay search. Advances in High Energy Physics, 2015, Article 817530. https://doi.org/10.1155/2015/817530

@article{8c2fdbd276ee4dc284c99fde8320ceef,

title = "A CaMoO4 crystal low temperature detector for the AMoRE neutrinoless double beta decay search",

abstract = "We report the development of a CaMoO4 crystal low temperature detector for the AMoRE neutrinoless double beta decay (0 β β) 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 σ of discrimination power was found for the α and β/γ 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 0 β β searches.",

author = "Kim, {G. B.} and S. Choi and Danevich, {F. A.} and A. Fleischmann and Kang, {C. S.} and Kim, {H. J.} and Kim, {S. R.} and Kim, {Y. D.} and Kim, {Y. H.} and Kornoukhov, {V. A.} and Lee, {H. J.} and Lee, {J. H.} and Lee, {M. K.} and Lee, {S. J.} and So, {J. H.} and Yoon, {W. S.}",

note = "Publisher Copyright: {\textcopyright} 2015 G. B. Kim et al.",

year = "2015",

doi = "10.1155/2015/817530",

language = "English",

volume = "2015",

journal = "Advances in High Energy Physics",

issn = "1687-7357",

publisher = "John Wiley and Sons Ltd",

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TY - JOUR

T1 - A CaMoO4 crystal low temperature detector for the AMoRE neutrinoless double beta decay search

AU - Kim, G. B.

AU - Choi, S.

AU - Danevich, F. A.

AU - Fleischmann, A.

AU - Kang, C. S.

AU - Kim, H. J.

AU - Kim, S. R.

AU - Kim, Y. D.

AU - Kim, Y. H.

AU - Kornoukhov, V. A.

AU - Lee, H. J.

AU - Lee, J. H.

AU - Lee, M. K.

AU - Lee, S. J.

AU - So, J. H.

AU - Yoon, W. S.

PY - 2015

Y1 - 2015

N2 - We report the development of a CaMoO4 crystal low temperature detector for the AMoRE neutrinoless double beta decay (0 β β) 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 σ of discrimination power was found for the α and β/γ 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 0 β β searches.

AB - We report the development of a CaMoO4 crystal low temperature detector for the AMoRE neutrinoless double beta decay (0 β β) 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 σ of discrimination power was found for the α and β/γ 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 0 β β searches.

UR - http://www.scopus.com/inward/record.url?scp=84930644766&partnerID=8YFLogxK

U2 - 10.1155/2015/817530

DO - 10.1155/2015/817530

M3 - Article

AN - SCOPUS:84930644766

SN - 1687-7357

VL - 2015

JO - Advances in High Energy Physics

JF - Advances in High Energy Physics

M1 - 817530

ER -

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

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