SCINTILLATION PROCESS IN CsI(Tl). I. COMPARISON WITH ACTIVATOR SATURATION MODEL

Journal Article · Mon Jul 15 04:00:00 EDT 1963 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.131.501· OSTI ID:4714727

Gwin, R; Murray, R B

S>The scintillation efficiency of CsI(Tl) crystals, containing varying amounts of Tl, was measured upon excitation by gamma rays, protons, and alpha particles in the kev and Mev region. A-critical test of a previously proposed phenomenological model of the scintillation process in activated alkali halides was provided. In order to achieve this goal, special attention was paid to technical effects that might distort the data, viz., effects dependent on the emission spectrum and the pulse analysis time. It is concluded that the variation of the scintillation efficiency as a function of the stopping power of the incident particie is predicted by the scintillation model when the effect of secondary electrons is taken into account. It is found that the shape of the scintillation efficiency versus dE/dx curve is very nearly independent of Tl concentration. It is concluded from this fact that the decline in scintillation efficiency for highly ionizing particles is not due to saturation of activator centers. (auth)

• Research Organization: Oak Ridge National Lab., Tenn.
• NSA Number: NSA-17-027463
• OSTI ID: 4714727
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 131; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ACTIVATION
ALKALI METALS
ALPHA PARTICLES
CATALYSIS
CESIUM IODIDES
CHEMISTRY
CRYSTALS
DIAGRAMS
ELECTRONS
EMISSION
GAMMA RADIATION
HALIDES
IONIZATION
MEASURED VALUES
PROTONS
PULSES
SCINTILLATION COUNTERS
SPECTRA
THALLIUM COMPOUNDS