| Item type |
文献 / Documents(1) |
| 公開日 |
2018-11-02 |
| アクセス権 |
|
|
アクセス権 |
open access |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 出版社版DOI |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.1088/1742-6596/718/4/042022 |
|
|
言語 |
ja |
|
|
関連名称 |
10.1088/1742-6596/718/4/042022 |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| タイトル |
|
|
タイトル |
Dark matter search project PICO-LON |
|
言語 |
en |
| 著者 |
伏見, 賢一
江尻, 宏泰
ハザマ
イケダ
イマガワ
イノウエ
カンザキ
Kozlov, A
折戸, 玲子
シマ
タケモト
テラオカ
ウメハラ
ヤスダ
ヨシダ
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
The PICO-LON project aims at search for cold dark matter by means of highly radio-pure and large volume NaI(Tl) scintillator. The NaI powder was purified by chemical processing to remove lead isotopes and selecting a high purity graphite crucible. The concentrations of radioactive impurities of 226Ra and 228Th were effectively reduced to 58±4 μBq/kg and 1.5±1.9 μBq/kg, respectively. It should be remarked that the concentration of 210Pb, which is crucial for the sensitivity to dark matter, was reduced to 24±2 μBq/kg. The total background rate at 10 keVee was as low as 8 keV-1kg-1day-1, which was sufficiently low to search for dark matter. Further purification of NaI(Tl) ingot and future prospect of PICO-LON project is discussed. |
|
言語 |
en |
| 書誌情報 |
en : Journal of Physics: Conference Series
巻 718,
p. 042022,
発行日 2016-06-09
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| 収録物ID |
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収録物識別子タイプ |
ISSN |
|
収録物識別子 |
17426596 |
| 収録物ID |
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|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
17426588 |
| 収録物ID |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA12839617 |
| 出版者 |
|
|
出版者 |
IOP Publishing |
|
言語 |
en |
| 権利情報 |
|
|
言語 |
en |
|
権利情報 |
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. |
| EID |
|
|
識別子 |
320293 |
|
識別子タイプ |
URI |
| 言語 |
|
|
言語 |
eng |
jpcs_718_042022.pdf (1.1 MB)
