Radiation damage of doubly doped PbWO4:(Mo,A3+) scintillator

J. Pejchal, P. Bohacek, M. Nikl, V. Mucka, M. Pospisil, M. Kobayashi, Y. Usuki

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

Radiation-induced absorption spectra were measured to study the influence of trivalent ion codoping (Y, La) on radiation hardness of PWO:Mo scintillators and to compare samples coming from two different laboratories. It follows from the experiments that trivalent ion codoping significantly reduces the induced absorption coefficient of PWO:Mo. At the same time, the shape of induced absorption spectra becomes more complicated and even bleaching of absorption after irradiation was observed in Y-codoped samples in the spectral region round 420 nm. When comparing Y and La-codoped samples, the positive effect of La is much less significant than that of Y. Also, no absorption bleaching round 420 nm after irradiation was found in the latter case.

Original languageEnglish
Pages (from-to)385-388
Number of pages4
JournalRadiation Measurements
Volume38
Issue number4-6
DOIs
Publication statusPublished - 2004 Aug

Keywords

  • Aliovalent ion doping
  • Colour centres
  • PWO
  • Radiation damage

ASJC Scopus subject areas

  • Radiation
  • Instrumentation

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