KamLAND-PICO Dark Mater Search Project

K. Fushimi; Y. Awatani; H. Ejiri; R. Hazama; H. Ikeda; K. Imagawa; K. Inoue; A. Kozlov; R. Orito; T. Shima; R. Sugawara; K. Yasuda

doi:10.1016/j.phpro.2014.12.012

KamLAND-PICO Dark Mater Search Project

K. Fushimi, Y. Awatani, H. Ejiri, R. Hazama, H. Ikeda, K. Imagawa, K. Inoue, A. Kozlov, R. Orito, T. Shima, R. Sugawara, K. Yasuda

Research Center for Neutrino Science (RCNS)

Research output: Contribution to journal › Conference article › peer-review

5 Citations (Scopus)

Abstract

Dark matter search project KamLAND-PICO is proposed. The first phase of the project aims to verifying the annual modulation signal which has been reported by DAMA/LIBRA. The last phase of the project aims to determining the type of interaction between WIMPs and nucleus. The thin and wide area NaI(Tl) detector PICO-LON has been developed to determine the type of WIMPs interaction. The good performance of PICO-LON detector was obtained. The energy threshold was as low as 2 keVee and the the energy resolution was as small as 25% at 60 keV_ee. The highly pure NaI(Tl) crystal has been developed in collaboration with the Japanese developer. The purity of U and Th chain contaminants have been reduced to the order of a few tens of ppt. It should be remarked that the concentration of ²¹⁰Pb was reduced to about 60 μBq/kg. The sensitivity to spin-independent WIMPs are discussed by applying 170 modules of NaI(Tl) with the dimension of 5 inch _ρ× 5 inch.

Original language	English
Pages (from-to)	67-73
Number of pages	7
Journal	Physics Procedia
Volume	61
DOIs	https://doi.org/10.1016/j.phpro.2014.12.012
Publication status	Published - 2015
Event	13th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2013 - , United States Duration: 2013 Sep 8 → 2013 Sep 13

Keywords

NaI(Tl)
WIMPs search

ASJC Scopus subject areas

Physics and Astronomy(all)

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Cite this

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title = "KamLAND-PICO Dark Mater Search Project",

abstract = "Dark matter search project KamLAND-PICO is proposed. The first phase of the project aims to verifying the annual modulation signal which has been reported by DAMA/LIBRA. The last phase of the project aims to determining the type of interaction between WIMPs and nucleus. The thin and wide area NaI(Tl) detector PICO-LON has been developed to determine the type of WIMPs interaction. The good performance of PICO-LON detector was obtained. The energy threshold was as low as 2 keVee and the the energy resolution was as small as 25% at 60 keVee. The highly pure NaI(Tl) crystal has been developed in collaboration with the Japanese developer. The purity of U and Th chain contaminants have been reduced to the order of a few tens of ppt. It should be remarked that the concentration of 210Pb was reduced to about 60 μBq/kg. The sensitivity to spin-independent WIMPs are discussed by applying 170 modules of NaI(Tl) with the dimension of 5 inch ρ× 5 inch.",

keywords = "NaI(Tl), WIMPs search",

author = "K. Fushimi and Y. Awatani and H. Ejiri and R. Hazama and H. Ikeda and K. Imagawa and K. Inoue and A. Kozlov and R. Orito and T. Shima and R. Sugawara and K. Yasuda",

note = "Publisher Copyright: {\textcopyright} 2015 The Authors. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.; 13th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2013 ; Conference date: 08-09-2013 Through 13-09-2013",

year = "2015",

doi = "10.1016/j.phpro.2014.12.012",

language = "English",

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TY - JOUR

T1 - KamLAND-PICO Dark Mater Search Project

AU - Fushimi, K.

AU - Awatani, Y.

AU - Ejiri, H.

AU - Hazama, R.

AU - Ikeda, H.

AU - Imagawa, K.

AU - Inoue, K.

AU - Kozlov, A.

AU - Orito, R.

AU - Shima, T.

AU - Sugawara, R.

AU - Yasuda, K.

PY - 2015

Y1 - 2015

N2 - Dark matter search project KamLAND-PICO is proposed. The first phase of the project aims to verifying the annual modulation signal which has been reported by DAMA/LIBRA. The last phase of the project aims to determining the type of interaction between WIMPs and nucleus. The thin and wide area NaI(Tl) detector PICO-LON has been developed to determine the type of WIMPs interaction. The good performance of PICO-LON detector was obtained. The energy threshold was as low as 2 keVee and the the energy resolution was as small as 25% at 60 keVee. The highly pure NaI(Tl) crystal has been developed in collaboration with the Japanese developer. The purity of U and Th chain contaminants have been reduced to the order of a few tens of ppt. It should be remarked that the concentration of 210Pb was reduced to about 60 μBq/kg. The sensitivity to spin-independent WIMPs are discussed by applying 170 modules of NaI(Tl) with the dimension of 5 inch ρ× 5 inch.

AB - Dark matter search project KamLAND-PICO is proposed. The first phase of the project aims to verifying the annual modulation signal which has been reported by DAMA/LIBRA. The last phase of the project aims to determining the type of interaction between WIMPs and nucleus. The thin and wide area NaI(Tl) detector PICO-LON has been developed to determine the type of WIMPs interaction. The good performance of PICO-LON detector was obtained. The energy threshold was as low as 2 keVee and the the energy resolution was as small as 25% at 60 keVee. The highly pure NaI(Tl) crystal has been developed in collaboration with the Japanese developer. The purity of U and Th chain contaminants have been reduced to the order of a few tens of ppt. It should be remarked that the concentration of 210Pb was reduced to about 60 μBq/kg. The sensitivity to spin-independent WIMPs are discussed by applying 170 modules of NaI(Tl) with the dimension of 5 inch ρ× 5 inch.

KW - NaI(Tl)

KW - WIMPs search

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