Stoichiometric cerium compounds as scintallators, II. CeP[sub 5]O[sub 14]

Journal Article · Thu Oct 01 04:00:00 EDT 1992 · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/23.173240· OSTI ID:7026880

Wojtowicz, A J; Berman, E; Lempicki, A ^[1]

---

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

Results concerning the relative importance of several processes which are responsible for the efficiency and speed of a scintillator are presented in this paper. Arguments for concentrated (stoichiometric) materials are presented and illustrated in the case of Ce-pentaphosphate (CeP[sub 5]O[sub 14]). The low density of this material does not make it a viable scintillator, but its remarkable simplicity and relatively easy technology make it perfect to study basic physical mechanisms of scintallation in concentrated materials. Based on studies of a series of Ce[sub x]La[sub 1 [minus] x]P[sub 5]O[sub 14] crystals, the authors formulate general conclusions concerning the relative importance of the process starting with direct ionization of the emitting centers (Ce[sup 3+]) versus long range gathering of electron-hole pairs. These conclusions provide guidance form optimizing speed and efficiency of future concentrated scintillators. In addition some peculiarities of the Ce-pentaphosphate luminescence are reported and interpreted.

• OSTI ID: 7026880
• Journal Information: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States) Vol. 39:5; ISSN 0018-9499; ISSN IETNAE
• Country of Publication: United States
• Language: English

Related Subjects

440104* -- Radiation Instrumentation-- High Energy Physics Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CERIUM COMPOUNDS
CERIUM IONS
CERIUM PHOSPHATES
CHARGED PARTICLES
CRYSTALS
DENSITY
EFFICIENCY
ELECTRON-HOLE DROPLETS
IONIZATION
IONS
LUMINESCENCE
MEASURING INSTRUMENTS
OPTIMIZATION
OXYGEN COMPOUNDS
PHOSPHATES
PHOSPHORUS COMPOUNDS
PHYSICAL PROPERTIES
PLASMA
RADIATION DETECTORS
RARE EARTH COMPOUNDS
SCINTILLATION COUNTERS
SOLID SCINTILLATION DETECTORS
SOLID-STATE PLASMA
STOICHIOMETRY