Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
1996-12-15
Nucl.Instrum.Meth. A388 (1997) 91-99
Physics
High Energy Physics
High Energy Physics - Experiment
15 pages LATEX; 11 figures on request from zacekv@lps.umontreal.ca submitted to Nuclear Instruments and Methods A
Scientific paper
10.1016/S0168-9002(97)00074-0
We discuss the operation principle of a detector based on superheated droplets of Freon-12 and its feasibility for the search of weakly interacting cold dark matter particles. In particular we are interested in a neutralino search experiment in the mass range from 10 to 10^4 GeV/c^2 and with a sensitivity of better than 10^-2 events/kg/d. We show that our new proposed detector can be operated at ambient pressure and room temperature in a mode where it is exclusively sensitive to nuclear recoils like those following neutralino interactions, which allows a powerful background discrimination. An additional advantage of this technique is due to the fact that the detection material, Freon-12, is cheap and readily available in large quantities. Moreover we were able to show that piezoelectric transducers allow efficient event localization in large volumes.
Hamel Louis-Andre
Lessard L.
Rainville Luc
Sur Bhaskar
Zacek Viktor
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