|
1. |
Investigation of a thick Si diode ionization detector at low temperatures for dark matter searches
Spooner, N.J.C.; Homer, G.J.; Smith, P.F.;
Nuclear Science, IEEE Transactions on
Volume 40,
Issue 2,
April 1993
Page(s):105
-
113
Abstract:
The sensitivity and charge collection characteristics of a 1-mm-thick commercial Si diode ionization detector for use in a hybrid dark matter detector are described. Particle counting with 57Co and 241Am X-ray sources was used to study the variation in sensitive volume and charge collection as a function of temperature and bias. Operating temperatures down to 30 mK were investigated. At this temperature, full volume sensitivity and a near 100% charge collection was observed at 30 mK, with applied biases at low as 5 V
|
Cart
