A CaMoO4 Crystal Low Temperature Detector for the AMoRE Neutrinoless Double Beta Decay Search
| Autor: | 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. |
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| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | Advances in High Energy Physics, Volume 2015 (2015), Article ID 817530 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1155/2015/817530 |
| Popis: | We report the development of a CaMoO4 crystal low temperature detector for the AMoRE neutrinoless double beta decay (0{\nu}\b{eta}\b{eta}) search experiment. The prototype detector cell was composed of a 216 g CaMoO4 crystal and a metallic magnetic calorimeter. An over-ground 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 {\sigma} of discrimination power was found for the {\alpha} and \b{eta}/{\gamma} 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{\nu}\b{eta}\b{eta} searches. Comment: 6 pages, 8 figures, 1 table. Published in Advanced in High Energy Physics |
| Databáze: | arXiv |
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