Published February 2004 | Version v1
Journal article Metadata-only

Instability of Eu2+/Eu3+ photoluminescence in X-irradiated CaSO4:Eu3+

Creators

  • 1. Laboratoire de Physique Electronique des Solides (LPES), Universitede Nice-Sophia Antipolis, Parc Valrose, 06108 Nice Cedex 2 (France)
  • 2. CEM2-CNRS UMR 5507, Universite de Montpellier II, Place E. Bataillon, 34095 Montpellier Cedex 5 (France)
  • 3. Radiological Safety Division, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102 (India)

Description

The photoluminescence (PL) properties of a calcium sulphate doped only with trivalent europium are studied before and after X-irradiation. On X-irradiation, a high Eu2+ emission appears clearly, with a simultaneous decrease of the Eu3+ PL intensity. The Eu2+/ Eu3+ PL intensity ratio increases as a function of X-air kerma plotted 12 min after X-irradiation which shows that this technique can be used in radiation dosimetry in the high dose region (102-104 Gy). However, the PL intensities of Eu3+ and Eu2+ emissions are unstable after X-irradiation at RT. (copyright 2004 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim) (orig.)

Availability note (English)

Available from: http://dx.doi.org/10.1002/pssa.200306743

Additional details

Identifiers

DOI
10.1002/pssa.200306743;

Publishing Information

Journal Title
Physica Status Solidi. A, Applied Research
Journal Volume
201
Journal Issue
3
Journal Page Range
p. 596-601
ISSN
0031-8965
CODEN
PSSABA

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
35031237
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
CALCIUM SULFATES; DOPED MATERIALS; EMISSION SPECTRA; ENERGY-LEVEL TRANSITIONS; EUROPIUM ADDITIONS; EUROPIUM IONS; FLUORESCENCE; INSTABILITY; KERMA; PHOTOLUMINESCENCE; PHYSICAL RADIATION EFFECTS; VISIBLE SPECTRA; X RADIATION
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; ALLOYS; CALCIUM COMPOUNDS; CHARGED PARTICLES; ELECTROMAGNETIC RADIATION; EMISSION; EUROPIUM ALLOYS; IONIZING RADIATIONS; IONS; LUMINESCENCE; MATERIALS; OXYGEN COMPOUNDS; PHOTON EMISSION; RADIATION EFFECTS; RADIATIONS; RARE EARTH ADDITIONS; RARE EARTH ALLOYS; SPECTRA; SULFATES; SULFUR COMPOUNDS

Optional Information

Notes
With 7 figs., 10 refs.. SICI: 0031-8965(200402)201:3<596::AID-PSSA200306743>3.0.TX;2-D