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EnglishLow 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.
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| Data di pubblicazione: | 2017 | |
| Titolo: | Experimental setup for the growth of solid crystals of inert gases for particle detection | |
| Autori: | Guarise, M.; Braggio, C.; Calabrese, R.; Carugno, G.; Dainelli, A.; Khanbekyan, A.; Luppi, E.; Mariotti, E.; Poggi, M.; Tomassetti, L. | |
| Rivista: | REVIEW OF SCIENTIFIC INSTRUMENTS | |
| Keywords: | Instrumentation | |
| Abstract in inglese: | 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. | |
| Digital Object Identifier (DOI): | 10.1063/1.5003296 | |
| Handle: | http://hdl.handle.net/11392/2383016 | |
| Appare nelle tipologie: | 03.1 Articolo su rivista |
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