Cerium fluoride, a new fast, heavy scintillator

Conference · Tue Nov 01 00:00:00 EST 1988

OSTI ID:6354007

Moses, W W; Derenzo, S E

We 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 /+-/ 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. We 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. 5 refs., 6 figs., 1 tab.

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• DOE Contract Number: AC03-76SF00098; AC03-82ER13000
• OSTI ID: 6354007
• Report Number(s): LBL-26500; CONF-881103-46; ON: DE89007136; TRN: 89-007332
• Resource Relation: Conference: IEEE nuclear science symposium, Orlando, FL, USA, 9 Nov 1988; Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CERIUM FLUORIDES
PHYSICAL PROPERTIES
SOLID SCINTILLATION DETECTORS
EMISSION SPECTRA
LIFETIME
MEDICINE
NUMERICAL DATA
USES
CERIUM COMPOUNDS
DATA
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
INFORMATION
MEASURING INSTRUMENTS
RADIATION DETECTORS
RARE EARTH COMPOUNDS
SCINTILLATION COUNTERS
SPECTRA
440101* - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments