Physics
Scientific paper
Sep 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aph....28..132p&link_type=abstract
Astroparticle Physics, Volume 28, Issue 1, p. 132-136.
Physics
Dark Matter
Scientific paper
Research and developments of a xenon weakly interactive massive particle (WIMP) searching detector have been done for a couple of decades. The weakness of signal amplitudes gives some difficulties to increase the detection efficiency. We brief a possible primary signal amplification method with an internal photo cathode and the secondary amplification method with electroluminescence technique. Using those methods, we achieved 1.8 × 102 ± 40 times amplification ratio for a primary scintillation and 4.3 × 10 ± 5 times amplification ratio for a secondary one. It will maximize the efficiency of a xenon detector to search for the super-symmetric dark matter, WIMP. Also we describe the response characteristics of a xenon detector that is exposed by cosmic ray on the ground level. We describe the possible detection region for a WIMP signal in the primary secondary plot. We will show a possible WIMP signal detected by xenon detector. Here we also remind the detailed working mechanism of a xenon detector searching for the WIMP dark matter.
Park Inkyu
Woo Jong-Kwan
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