Speaker
Prof.
Hyun Su Lee
(Ewha Womans University)
Description
The Korea Invisible Mass Search (KIMS) collaboration has performed direct searches for WIMP-type dark matter using ultra-low-background CsI(Tl) crystal detectors, which are similar experimental devices to the NaI(Tl) crystal used in the DAMA experiment. The DAMA experiment has claimed an observation of dark matter with an annual modulation signature of WIMP-nucleon interaction. Recently the KIMS collaboration started development of ultra-low-background NaI(Tl) crystal detectors to identify unambiguously the origin of the DAMA modulation signature. In this presentation, techniques to reduce internal background of CsI(Tl) crystals as well as development status of low-background NaI(Tl) crystals will be reported.
Primary author
Prof.
Hyun Su Lee
(Ewha Womans University)
