Abstract
The PICASSO experiment searches WIMPs via their spin-dependent interactions with nuclei. At their operating temperatures, PICASSO threshold detectors are not sensitive to γ-rays, while it is necessary to suppress neutron and α-ray backgrounds. The different types of neutron shielding (water, polyethylene, borated water and polyethylene doped with different compounds of boron and lithium) were studied via the Monte Carlo method using MCNPX code. Efficiencies of these different types of neutron shielding were compared from the point of view of neutron suppression as well as number of newly born y-rays. The neutrons and γ-rays were followed up to the PICASSO detector active material. The most suitable neutron shielding for the PICASSO experiment was determined following these simulations.
Original language | English (US) |
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Title of host publication | Workshop on Calculation of Double-Beta-Decay Matrix Elements (MEDEX '09) |
Pages | 112-116 |
Number of pages | 5 |
DOIs | |
State | Published - Dec 14 2009 |
Event | Workshop on Calculation of Double-Beta-Decay Matrix Elements, MEDEX '09 - Prague, Czech Republic Duration: Jun 15 2009 → Jun 19 2009 |
Publication series
Name | AIP Conference Proceedings |
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Volume | 1180 |
ISSN (Print) | 0094-243X |
ISSN (Electronic) | 1551-7616 |
Other
Other | Workshop on Calculation of Double-Beta-Decay Matrix Elements, MEDEX '09 |
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Country | Czech Republic |
City | Prague |
Period | 6/15/09 → 6/19/09 |
Keywords
- Dark matter
- MCNPX
- Monte Carlo simulations
- Neutralino
- Neutron shielding