Published February 2008 | Version v1
Journal article Metadata-only

Scintillation properties of pure and Ca-doped ZnWO4 crystals

Creators

  • 1. Institute for Nuclear Research, MSP 03680 Kyiv (Ukraine)
  • 2. Department of Physics, University of Oxford, Oxford OX1 3RH (United Kingdom)
  • 3. Hilger Crystals, Margate, Kent CT9 4JL (United Kingdom)

Description

Following the investigations of the structure and scintillation properties of Ca-doped zinc tungstate powder [phys. stat. sol. (a) 204, 730 (2007)] a single-crystal of ZnWO4-Ca (0.5 mol%) was grown and characterised. The relative light output, energy resolution and decay characteristics were measured for pure and Ca-doped ZnWO4 scintillators. An increase in the light yield of ∝40% compared with the undoped crystal, and an energy resolution 9.6% (137Cs) were obtained for Ca-doped ZnWO4. The observed improvement is attributed to the reduction of self-absorption (bleaching) of the crystal. The cause of bleaching as well as the possible contribution of scattering is discussed. (copyright 2008 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim) (orig.)

Availability note (English)

Available from: http://dx.doi.org/10.1002/pssa.200723205

Additional details

Identifiers

DOI
10.1002/pssa.200723205;

Publishing Information

Journal Title
Physica Status Solidi. A, Applied Research
Journal Volume
205
Journal Issue
2
Journal Page Range
p. 335-339
ISSN
0031-8965
CODEN
PSSABA

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
39023830
Subject category
S36: MATERIALS SCIENCE; S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
Descriptors DEI
ABSORPTION SPECTRA; BLEACHING; CALCIUM ADDITIONS; DE-EXCITATION; DOPED MATERIALS; ENERGY RESOLUTION; EXCITED STATES; GAMMA DETECTION; INORGANIC PHOSPHORS; KEV RANGE 10-100; KEV RANGE 100-1000; LIFETIME; MONOCRYSTALS; OPACITY; PULSES; SCINTILLATIONS; SELF-ABSORPTION; SOLID SCINTILLATION DETECTORS; ULTRAVIOLET SPECTRA; VISIBLE SPECTRA; ZINC TUNGSTATES
Descriptors DEC
ABSORPTION; ALLOYS; CALCIUM ALLOYS; CRYSTALS; DETECTION; ENERGY LEVELS; ENERGY RANGE; ENERGY-LEVEL TRANSITIONS; KEV RANGE; MATERIALS; MEASURING INSTRUMENTS; OPTICAL PROPERTIES; OXYGEN COMPOUNDS; PHOSPHORS; PHYSICAL PROPERTIES; RADIATION DETECTION; RADIATION DETECTORS; REFRACTORY METAL COMPOUNDS; RESOLUTION; SCINTILLATION COUNTERS; SORPTION; SPECTRA; TRANSITION ELEMENT COMPOUNDS; TUNGSTATES; TUNGSTEN COMPOUNDS; ZINC COMPOUNDS

Optional Information

Notes
With 6 figs., 2 tabs., 16 refs.. SICI: 0031-8965(200802)205:2<335::AID-PSSA200723205>3.0.TX;2-D