Thumbnail
Access Restriction
Open

Author Lee, Hyun Su
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ♦ BACKGROUND RADIATION ♦ CESIUM 137 ♦ CESIUM IODIDES ♦ CRYSTAL GROWTH ♦ CRYSTALS ♦ KEV RANGE ♦ MODULATION ♦ NAI DETECTORS ♦ POWDERS ♦ SIGNALS ♦ SODIUM IODIDES ♦ WIMPS
Abstract 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 {sup 137}Cs 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.
ISSN 0094243X
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-08-17
Publisher Place United States
Volume Number 1672
Issue Number 1


Open content in new tab

   Open content in new tab