Cluster models of doped ionic crystal scintillators. Quantum calculations

Conference · Sat Dec 31 00:00:00 EST 1994

OSTI ID:79883

Berrondo, M; Rivas-Silva, J F ^[1]; Czirr, J B ^[2]

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1. Brigham Young Univ., Provo, UT (United States). Dept. of Physics and Astronomy
2. Mission Support Inc., Provo, UT (United States). Photogenics Division

The authors have performed quantum electronic ab initio calculations of clusters of alkali halides, both pure and doped. In order to estimate the pure crystal energy gap and the dopant excitation, they have considered a central cation and four shells of ions surrounding it. They have studied KCl, NaI, NaCl and KI, both pure and with a Tl{sup +} ion replacing the central alkali cation. Encouraging results are presented for absorption and emission.

• OSTI ID: 79883
• Report Number(s): CONF-940411-; ISBN 1-55899-248-0; TRN: 95:016656
• Resource Relation: Conference: Spring meeting of the Materials Research Society (MRS), San Francisco, CA (United States), 4-8 Apr 1994; Other Information: PBD: 1994; Related Information: Is Part Of Scintillator and phosphor materials. Materials Research Society symposium proceedings: Volume 348; Weber, M.J. [ed.] [Lawrence Livermore National Lab., CA (United States)]; Lecoq, P. [ed.] [Centre European pour la Recherche Nucleaire, Geneva (Switzerland)]; Ruchti, R.C. [ed.] [Univ. of Notre Dame, IN (United States)]; Woody, C. [ed.] [Brookhaven National Lab., Upton, NY (United States)]; Yen, W.M. [ed.] [Univ. of Georgia, Athens, GA (United States)]; Zhu, R.Y. [ed.] [California Inst. of Technology, Pasadena, CA (United States)]; PB: 580 p.
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
DOPED MATERIALS
LUMINESCENCE
ENERGY GAP
IONIC CRYSTALS
POTASSIUM CHLORIDES
SODIUM IODIDES
SODIUM CHLORIDES
POTASSIUM IODIDES
THALLIUM CHLORIDES
THALLIUM IODIDES
THALLIUM IONS
OPTICAL PROPERTIES
MATHEMATICAL MODELS
ELECTRONIC STRUCTURE