Kamland-pico project to search for cosmic dark matter

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 output: Contribution to conferencePaperpeer-review

Abstract

KamLAND-PICO project aims to search for WIMPs dark matter by means of NaI(Tl) scintillator. To investigate the WIMPs candidate whose cross section is as small as 109 pb, a pure NaI(Tl) crystal was developed by chemical processing and taking care of surroundings. The concentration of U and Th chain was reduced to 5.4 ± 0.9 ppt and 3.3 ± 2.2 ppt, respectively. It should be remarked that the concentration of 210Pb which was difficult to reduce reached to the high purity as 58 ± 26 µBq/kg.

Original languageEnglish
Publication statusPublished - 2014
Event2014 28th Workshop on Radiation Detectors and Their Uses - Tsukuba, Japan
Duration: 2014 Jan 262014 Jan 28

Conference

Conference2014 28th Workshop on Radiation Detectors and Their Uses
Country/TerritoryJapan
CityTsukuba
Period14/1/2614/1/28

ASJC Scopus subject areas

  • Instrumentation

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