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Detection of scintillation light from Pr:Lu3Al5O12(LuAG) by gallium nitride photodiode

Authors
Journal
Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment
0168-9002
Publisher
Elsevier
Publication Date
Volume
610
Issue
1
Identifiers
DOI: 10.1016/j.nima.2009.05.149
Keywords
  • Praseodymium
  • Single Crystal
  • Scintillator
  • Photodiode
  • Gallium Nitride
Disciplines
  • Physics

Abstract

Abstract Pr:Lu 3Al 5O 12 (LuAG) scintillator has interesting properties including a very fast 5d–4f emission decay time, excellent energy resolution, and high light yield. In order to use Pr:LuAG for radiation detection, the photodetector must have ultraviolet wavelength sensitivity because Pr:LuAG has a short emission wavelength of around 310 nm. A gallium nitride (GaN)-photodiode (PD) has maximum wavelength sensitivity between 300 and 400 nm, and so may be the most suitable photodetector for Pr:LuAG. In this work, we report the results of alpha-ray spectroscopy measurements by GaN-PD (ALGAN UVPD-380TO46BL) for Pr:LuAG.

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