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

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

doi:10.1016/j.radmeas.2004.01.018

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

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

New Industry Creation Hatchery Center (NICHe)

Research output: Contribution to journal › Article › peer-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 language	English
Pages (from-to)	385-388
Number of pages	4
Journal	Radiation Measurements
Volume	38
Issue number	4-6
DOIs	https://doi.org/10.1016/j.radmeas.2004.01.018
Publication status	Published - 2004 Aug

Keywords

Aliovalent ion doping
Colour centres
PWO
Radiation damage

ASJC Scopus subject areas

Radiation
Instrumentation

Access to Document

10.1016/j.radmeas.2004.01.018

Cite this

@article{85954b43821841858ada293b9d601f1b,

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

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.",

keywords = "Aliovalent ion doping, Colour centres, PWO, Radiation damage",

author = "J. Pejchal and P. Bohacek and M. Nikl and V. Mucka and M. Pospisil and M. Kobayashi and Y. Usuki",

note = "Funding Information: This work was supported by the NATO Science for peace project No. 973510 and Czech MSMT, KONTAKT Project ME462. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.",

year = "2004",

month = aug,

doi = "10.1016/j.radmeas.2004.01.018",

language = "English",

volume = "38",

pages = "385--388",

journal = "Radiation Measurements",

issn = "1350-4487",

publisher = "Elsevier Limited",

number = "4-6",

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TY - JOUR

T1 - Radiation damage of doubly doped PbWO4:(Mo,A3+) scintillator

AU - Pejchal, J.

AU - Bohacek, P.

AU - Nikl, M.

AU - Mucka, V.

AU - Pospisil, M.

AU - Kobayashi, M.

AU - Usuki, Y.

PY - 2004/8

Y1 - 2004/8

N2 - 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.

AB - 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.

KW - Aliovalent ion doping

KW - Colour centres

KW - PWO

KW - Radiation damage

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