Published August 17, 2015 | Version v1
Journal article Metadata-only

Development of low background CsI(Tl) and NaI(Tl) crystals for WIMP search

Creators

  • 1. Department of Physics, Ewha Womans University, Seoul 120-750 (Korea, Republic of)

Description

We have developed low background CsI(Tl) and NaI(Tl) crystals to search for weakly interacting massive particles as well as to verify the origin of the annual modulation signal observed by the DAMA/LIBRA experiment. Extensive studies about the contamination mechanisim of 137Cs in CsI powder lead to the growth of ultra-low-background CsI(Tl) crystals. Similar approaches for NaI(Tl) crystals have been applied to reduce internal backgrounds to less than 0.5 counts/kg/day/keV. Status and understanding of backgrounds and background reduction in NaI(Tl) crystals will be discussed

Additional details

Identifiers

DOI
10.1063/1.4927984;

Publishing Information

Journal Title
AIP Conference Proceedings
Journal Volume
1672
Journal Issue
1
Journal Page Range
p. 040002-040002.6
ISSN
0094-243X
CODEN
APCPCS

Conference

Title
5. international workshop in low radioactivity techniques
Acronym
LRT 2015
Dates
18-20 Mar 2015
Place
Seattle, WA (United States)

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
47058769
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
BACKGROUND RADIATION; CESIUM 137; CESIUM IODIDES; CRYSTAL GROWTH; CRYSTALS; KEV RANGE; MODULATION; NAI DETECTORS; POWDERS; SIGNALS; SODIUM IODIDES; WIMPS
Descriptors DEC
ALKALI METAL COMPOUNDS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CESIUM COMPOUNDS; CESIUM HALIDES; CESIUM ISOTOPES; ELEMENTARY PARTICLES; ENERGY RANGE; HALIDES; HALOGEN COMPOUNDS; INORGANIC PHOSPHORS; INTERMEDIATE MASS NUCLEI; IODIDES; IODINE COMPOUNDS; ISOTOPES; MEASURING INSTRUMENTS; NUCLEI; ODD-EVEN NUCLEI; PHOSPHORS; POSTULATED PARTICLES; RADIATION DETECTORS; RADIATIONS; RADIOISOTOPES; SCINTILLATION COUNTERS; SODIUM COMPOUNDS; SODIUM HALIDES; SOLID SCINTILLATION DETECTORS; YEARS LIVING RADIOISOTOPES

Optional Information

Notes
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