Design optimization of MACHe3, a project of superfluid 3He detector for direct Dark Matter search
Abstract
MAtrix of Cells of superfluid 3He (MACHe3) is a project of a new detector for direct Dark Matter (DM) search. A cell of superfluid 3He has been developed and the idea of using a large number of such cells in a high granularity detector is proposed. This paper presents, after a brief description of the superfluid 3He cell, the simulation of the response of different matrix configurations allowing to define an optimum design as a function of the number of cells and the volume of each cell. The background rejection, for several configurations, is presented both for neutrons and γ-rays of various kinetic energies.
- Publication:
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Nuclear Instruments and Methods in Physics Research A
- Pub Date:
- December 2000
- DOI:
- 10.1016/S0168-9002(00)00540-4
- arXiv:
- arXiv:astro-ph/0002303
- Bibcode:
- 2000NIMPA.455..554M
- Keywords:
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- Astrophysics
- E-Print:
- 20 pages, 12 figures