Experimental setup for the growth of solid crystals of inert gases for particle detection

Low energy threshold detectors are necessary in many frontier fields of the experimental physics. In this work, we present a novel detection approach based on pure or doped matrices of inert gases solidified at cryogenic temperatures. The small energy release of the incident particle can be transfer...

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Bibliographic Details
Published in:Review of scientific instruments 2017-11, Vol.88 (11), p.113303-113303
Main Authors: Guarise, M., Braggio, C., Calabrese, R., Carugno, G., Dainelli, A., Khanbekyan, A., Luppi, E., Mariotti, E., Poggi, M., Tomassetti, L.
Format: Article
Language:English
Subjects:
Collection
Cryogenic temperature
Crystal growth
Electrons
Free electrons
Ionization
Neon
Rare gases
Scientific apparatus & instruments
Threshold detectors (dosimeters)
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Summary:Low energy threshold detectors are necessary in many frontier fields of the experimental physics. In this work, we present a novel detection approach based on pure or doped matrices of inert gases solidified at cryogenic temperatures. The small energy release of the incident particle can be transferred directly (in pure crystals) or through a laser-driven ionization (in doped materials) to the electrons of the medium that are then converted into free electrons. The charge collection process of the electrons that consists in their drift within the crystal and their extraction through the solid–vacuum interface gives rise to an electric signal that we exploit for preliminary tests of charge collection and crystal quality. Such tests are carried out in different matrices of neon and methane using an UV-assisted apparatus for electron injection in crystals.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.5003296