BROWSE

Related Scientist

cup's photo.

cup
지하실험연구단
more info

ITEM VIEW & DOWNLOAD

Performance of an ultra-pure NaI(Tl) detector produced by an indigenously-developed purification method and crystal growth for the COSINE-200 experiment

Cited 0 time in webofscience Cited 0 time in scopus
59 Viewed 0 Downloaded
Title
Performance of an ultra-pure NaI(Tl) detector produced by an indigenously-developed purification method and crystal growth for the COSINE-200 experiment
Author(s)
H. Lee; B. J. Park; Jae Jin Choi; Olga Gileva; Ha, C.; Iltis, A.; Eun Ju Jeon; Deayeon Kim; Kyungwon Kim; Sung hyun Kim; Kim, S. K.; Yeongduk Kim; Young Ju Ko; Cheol Ho Lee; Hyun Su Lee; In Su Lee; Moo Hyun Lee; Se Jin Ra; Jukyung Son; Keonah Shin
Publication Date
2023-02
Journal
FRONTIERS IN PHYSICS, v.11
Publisher
FRONTIERS MEDIA SA
Abstract
The COSINE-100 experiment has been operating with 106 kg of low-background NaI(Tl) detectors to test the results from the DAMA/LIBRA experiment, which claims to have observed dark matter. However, since the background of the NaI(Tl) crystals used in the COSINE-100 experiment is 2-3 times higher than that in the DAMA detectors, no conclusion regarding the claimed observation from the DAMA/LIBRA experiment could be reached. Therefore, we plan to upgrade the current COSINE-100 experiment to the next phase, COSINE-200, by using ultra-low background NaI(Tl) detectors. The basic principle was already proved with the commercially available Astro-grade NaI powder from Sigma-Aldrich (now Merck) company. However, we have developed a mass production process of ultra-pure NaI powder at the Center for Underground Physics (CUP) of the Institute for Basic Science (IBS), Korea, using the direct purification of the raw NaI powder. We plan to produce more than 1,000 kg of ultra-pure powder for the COSINE-200 experiment. With our crystal grower installed at CUP, we have successfully grown a low-background crystal using our purification technique for the NaI powder. We have assembled a low-background NaI(Tl) detector. In this article, we report the performance of this ultra-pure NaI(Tl) crystal detector produced at IBS, Korea.
URI
https://pr.ibs.re.kr/handle/8788114/14251
DOI
10.3389/fphy.2023.1142765
ISSN
2296-424X
Appears in Collections:
Center for Underground Physics(지하실험 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
There are no files associated with this item.

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse