Background in Dark Matter Detectors and Directional Discrimination in Gas Detectors

摘要

This contribution represents two reports condensed into one. First are some comments on backgrounds, based largely on the use of the program COSMO [1] for predicting activities induced in materials by cosmic ray exposure. Secondly I discuss the apparently paradoxical idea of using gas detectors at low pressure[2, 3] in the search for Dark Matter. This method is shown to have several potential advantages, including direction sensitivity and background rejection power.