Application of large area avalanche photodiodes to study scintillators at liquid nitrogen temperatures

• Properties of Large Area Avalanche Photodiodes (LAAPDs) at liquid nitrogen (LN2) temperatures in application to study pure NaI, CsI and BGO scintillators are presented. All the tested crystals exhibited excellent performance at LN2 temperatures reflected by a high light output and very good energy resolution. The study showed that the LAAPD operating at LN2 temperatures is an excellent light readout device for testing different scintillators at low temperatures.

Nyckelord

scintillators

pure NaI

CsI

BGO

light output

energy resolution

avalanche photodiodes

energy resolution

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