Cerium fluoride, a new fast, heavy scintillator
The authors describe the scintillation properties of Cerium Fluoride (CeF/sub 3/), a newly discovered, heavy (6.16 g/cm/sup 3/), inorganic scintillator. Its fluorescence decay lifetime, measured with the delayed coincidence method, is described by a single exponential with a 27 +- 1 ns time constant. The emission spectrum peaks at a wavelength of 340 nm, and drops to less than 10% of its peak value at 315 nm and 460 nm. When a 1 cm optical quality cube of CeF/sub 3/ is excited with 511 keV photons, a photopeak with a 20% full width at half maximum is observed at approximately half the light output of a Bismuth Germanate (BGO) crystal with similar geometry. They also present measurements of the decay time and light output of CeF/sub 3/ doped with three rare-earth elements (Dy, Er, and Pr). The short fluorescence lifetime, high density, and reasonable light output of this new scintillator suggest that it would be useful for applications where high counting rates, good stopping power, and nanosecond timing are important, such as medical imaging and nuclear science.
- Research Organization:
- Donner Lab. and Lawrence Berkeley Lab., Univ. of California, Berkeley, CA (US)
- OSTI ID:
- 6331027
- Report Number(s):
- CONF-881103-
- Journal Information:
- IEEE Trans. Nucl. Sci.; (United States), Vol. 36:1; Conference: IEEE nuclear science symposium, Orlando, FL, USA, 9 Nov 1988
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
BGO DETECTORS
GEOMETRY
CERIUM FLUORIDES
SCINTILLATIONS
SOLID SCINTILLATION DETECTORS
DENSITY
EMISSION SPECTRA
FLUORESCENCE
IMAGE PROCESSING
LIFETIME
NUCLEAR MEDICINE
NUCLEAR PHYSICS
PARTICLE DECAY
PROTON DECAY RADIOISOTOPES
CERIUM COMPOUNDS
DECAY
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
ISOTOPES
LUMINESCENCE
MATHEMATICS
MEASURING INSTRUMENTS
MEDICINE
PHYSICAL PROPERTIES
PHYSICS
PROCESSING
RADIATION DETECTORS
RADIOISOTOPES
RARE EARTH COMPOUNDS
SCINTILLATION COUNTERS
SPECTRA
440101* - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments
360204 - Ceramics
Cermets
& Refractories- Physical Properties