Tracking performance of the NEWAGE-0.3a direction-sensitive dark matter detector

Details Tracking performance of the NEWAGE-0.3a direction-sensitive dark matter detector Tracking performance of the NEWAGE-0.3a direction-sensitive dark matter detector

Apr 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aph....31..185n&link_type=abstract

Astroparticle Physics, Volume 31, Issue 3, p. 185-191.

Physics

4

Scientific paper

NEWAGE-0.3a is a prototype direction-sensitive dark matter search detector. We measured its response to electron tracks and nuclear tracks while focusing on the tracking performances in an underground laboratory. It showed a gamma-ray rejection power of 8.1 ± 1.9 × 10-6 at 100 keV α.e.(alpha-equivalent) and an energy resolutions of 45% at 6 MeV α.e. The absolute nuclear efficiency was 80% at 100 keV α.e. and the nuclear directional-dependent efficiency was also measured. The three-dimensional angular resolution for the nuclear track was 46 ± 3° in the energy range from 100 keV α.e. to 400 keV α.e.

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