Stoichiometric cerium compounds as scintillators. Part 1; CeF[sub 3]

Conference · Sat Aug 01 04:00:00 EDT 1992 · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:6858396

Wojtowicz, A K; Berman, E; Koepke, C; Lempicki, A ^[1]

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1. Boston Univ., MA (United States). Dept. of Chemistry

Simple arguments indicate that stoichiometric Ce-materials with negligible Ce-Ce interactions should have superior properties (speed and light output). In this paper the authors present a study of the already known scintillator, CeF[sub 3]. The authors have investigated spectroscopy of CeF[sub 3], cerium trifluoride, using optical and ionizing radiation excitations. The authors show that rapid quenching of Ce emission in this material is responsible for the loss of about 50% of the light output and generates the, so-called, ultra fast component. Additional competition comes from unidentified centers, probably due to perturbed Ce ions. Although the light output of CeF[sub 3] is now only about 50% of BGO it clearly demonstrates the potential of large improvement. Deeper understanding of Ce-systems is certainly needed in order to fully exploit their potentials.

• OSTI ID: 6858396
• Report Number(s): CONF-911106--
• Conference Information: Journal Name: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States) Journal Volume: 39:4
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
360206 -- Ceramics
Cermets
& Refractories-- Radiation Effects
440100 -- Radiation Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
664200 -- Spectra of Atoms & Molecules & their Interactions with Photons-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
CERIUM COMPOUNDS
CERIUM FLUORIDES
EMISSION SPECTRA
ENERGY LEVELS
EXCITED STATES
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
INTERACTIONS
IONIZING RADIATIONS
MATERIALS TESTING
MEASURING INSTRUMENTS
PHYSICAL RADIATION EFFECTS
QUENCHING
RADIATION DETECTORS
RADIATION EFFECTS
RADIATIONS
RARE EARTH COMPOUNDS
SCINTILLATION COUNTERS
SPECTRA
STOICHIOMETRY
TESTING