| | |
| | |
Stat |
Members: 3645 Articles: 2'501'711 Articles rated: 2609
20 April 2024 |
|
| | | |
|
Article overview
| |
|
Understanding NaI(Tl) crystal background for dark matter searches | G. Adhikari
; P. Adhikari
; C. Ha
; E.J. Jeon
; N.Y. Kim
; Y.D. Kim
; S.Y. Kong
; H.S. Lee
; S.Y. Oh
; J.S. Park
; K.S. Park
; | Date: |
6 Mar 2017 | Abstract: | We have developed ultra-low-background NaI(Tl) crystals to reproduce the DAMA
results with the ultimate goal of achieving purity levels that are comparable
to or better than those of the DAMA/LIBRA crystals. Even though the achieved
background level does not approach that of DAMA/LIBRA, it is crucial to have a
quantitative understanding of the backgrounds. We describe the contributions of
background sources quantitatively by performing Geant4 Monte Carlo simulations
that are fitted to the measured data to quantify the unknown fractions of the
background compositions. The overall simulated background spectrum well
describes the measured data with a 9.16-kg NaI(Tl) crystal and shows that the
background sources are dominated by surface $^{210}$Pb and internal $^{40}$K in
the 2 to 6-keV energy interval, which produce 2.31 counts/day/keV/kg (dru) and
0.48 dru, respectively. | Source: | arXiv, 1703.1982 | Services: | Forum | Review | PDF | Favorites |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
| News, job offers and information for researchers and scientists:
| |