Cerium fluoride, a new fast, heavy scintillator

Conference · Wed Feb 01 04:00:00 EST 1989 · IEEE Trans. Nucl. Sci.; (United States)

OSTI ID:6331027

Moses, W W; Derenzo, S E

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-
• Conference Information: Journal Name: IEEE Trans. Nucl. Sci.; (United States) Journal Volume: 36:1
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
440101* -- Radiation Instrumentation-- General Detectors or Monitors & Radiometric Instruments
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
BGO DETECTORS
CERIUM COMPOUNDS
CERIUM FLUORIDES
DECAY
DENSITY
EMISSION SPECTRA
FLUORESCENCE
FLUORIDES
FLUORINE COMPOUNDS
GEOMETRY
HALIDES
HALOGEN COMPOUNDS
IMAGE PROCESSING
ISOTOPES
LIFETIME
LUMINESCENCE
MATHEMATICS
MEASURING INSTRUMENTS
MEDICINE
NUCLEAR MEDICINE
NUCLEAR PHYSICS
PARTICLE DECAY
PHYSICAL PROPERTIES
PHYSICS
PROCESSING
PROTON DECAY RADIOISOTOPES
RADIATION DETECTORS
RADIOISOTOPES
RARE EARTH COMPOUNDS
SCINTILLATION COUNTERS
SCINTILLATIONS
SOLID SCINTILLATION DETECTORS
SPECTRA