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Methods For A Systematic, Comprehensive Search for Fast, Heavy Scintillator Materials

Published online by Cambridge University Press:  21 February 2011

S. E. Derenzo ,
W. W. Moses ,
M. J. Weber  and
A. C. West
S. E. Derenzo
Affiliation:
Lawrence Berkeley Laboratory, 1 Cyclotron Road, Berkeley, CA 94720
W. W. Moses
Affiliation:
Lawrence Berkeley Laboratory, 1 Cyclotron Road, Berkeley, CA 94720
M. J. Weber
Affiliation:
Lawrence Berkeley Laboratory, 1 Cyclotron Road, Berkeley, CA 94720
A. C. West
Affiliation:
Lawrence Berkeley Laboratory, 1 Cyclotron Road, Berkeley, CA 94720
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Abstract

Over the years a number of scintillator materials have been developed for a wide variety of nuclear detection applications in industry, high energy physics, and medical instrumentation. To expand the list of useful scintillators, we are pursuing the following systematic, comprehensive search: (1) select materials with good gamma-ray interaction properties from the 200,000 data set NIST crystal diffraction file, (2) synthesize samples (doped and undoped) in powdered or single crystal form, (3) test the samples using sub-nanosecond pulsed x-rays to measure important scintillation properties such as rise times, decay times, emission wavelengths, and light output, (4) prepare large, high quality crystals of the most promising candidates, and (5) test the crystals as gamma-ray detectors in representative configurations. An important parallel effort is the computation of electronic energy levels of activators and the band structure of intrinsic and host crystals to aid in the materials selection process.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 348 , 1994 , 39
Copyright
Copyright © Materials Research Society 1994

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References

REFERENCES

1. Derenzo, S.E. and Moses, W.W., “Experimental efforts and results in finding new heavy scintillators,” In Heavy scintillators for scientific and industrial applications, (Editions Frontieres, Gif-sur-Yvette, France, 1992), pp 125–135.Google Scholar
2.NIST Crystal Data Identification File (1993), International Centre for Diffraction Data, Newtown Square, PA, U.S.A.Google Scholar
3. Blasse, G., “Luminescence of inorganic solids: from isolated centres to concentrated systems,” Prog. Solid St. Chem. 18, 79 (1988).Google Scholar
4. Rupp, B., Smith, B. and Wong, J., “SEXIE - a microcomputer program for the calculation of coordination shells and geometries,” Comp. Phys. Commun. 67, 543 (1992).Google Scholar
5. Brawer, S. A. and Weber, M. J., “Theoretical study of the structure and optical properties of rare-earth-doped BeF2 Glass,” J. Non-Crystal. Solids 38&39, 9 (1980).10.1016/0022-3093(80)90386-5Google Scholar
6. Derenzo, S.E., Moses, W.W., Perera, R., Litton, J. and Cahoon, J., “Prospects for new inorganic scintillators,” IEEE Trans Nucl Sci, NS–37, 203–208 (1990).Google Scholar
7. Derenzo, S.E., Moses, W.W., Cahoon, J.L., DeVol, T.A. and Boatner, L.A., “X-ray fluorescence measurements of 412 inorganic compounds,” IEEE Nuclear Science Symposium Conference Record 91CH3100-5, 1, 143–147 (1991).Google Scholar
8. Derenzo, S.E., Moses, W.W., Blankespoor, S. C., Ito, M., and Oba, K., “Design of a pulsed x-ray system for fluorescent lifetime measurements with a timing accuracy of 109 ps,” IEEE Trans. Nucl. Sci. 42, (1994) (in press) and S. C. Blankespoor, S.E. Derenzo, W.W. Moses, M. Ito, and K. Oba, “Characterization of a pulsed x-ray source for fluorescent lifetime measurements,” IEEE Trans. Nucl. Sci. 42, (1994) (in press).Google Scholar
9. Moses, W. W., Derenzo, S., Weber, M. J., Ray-Chaudhuri, A. K., and Cerrina, F., “Scintillation mechanisms in cerium fluoride,” J. Lumin. 59, 89–100 (1994).Google Scholar
10. Bartram, R. H., “Computer modeling of the optical properties of transition-metal ions in solids,” this Proceedings.Google Scholar
11.J. Andriessen, P. Dorenbos, and E, C. W.. van Eijk, “Calculation of energy levels of cerium in inorganic scintillator crystals,” this Proceedings.Google Scholar
12.See Rodnyi, P. A., “Choice of compounds with fast core-valence transitions,” this Proceedings and references cited therein.Google Scholar
13. Mishra, K. C. Schmidt, P. C., Johnson, K. C., DeBoer, B. G., Berkowitz, J. K. and Dale, E. A., “Bands versus bonds in electronic-structure theory of metal oxides: Application to luminescence of copper in zinc oxide,” Phys. Rev. B. 42, 1423 (1990).Google Scholar