Fundamental Studies of Scintillation Phenomena in NaI

Journal Article · Mon Dec 01 04:00:00 EST 1958 · IRE Transactions on Nuclear Science

DOI:https://doi.org/10.1109/TNS2.1958.4315632· OSTI ID:4307009

Van Sciver, W. J.; Bogart, L.

Work on pure NaI reported at the Fifth Scintillation Counter Symposium (1956) has been extended using crystals of higher purity at temperatores down to 4 K. Decay of the light pulse from unactivated Nal is not a simple exponential but exhibits a rising component superimposed on an exponential decay. In other measurements, the absolute conversion efficiency (emitted useful light divided by exciting particle energy) was found to be as high as 25% for unactivated Nal at liquid nitrogen temperatore (compared with 13% for NaI(Tl) at room temperature. Theoretical and practical implications of the results are discussed. (auth)

• Research Organization: Levinthal Electronic Products, Inc., Palo Alto, Calif.
• Sponsoring Organization: USDOE
• NSA Number: NSA-13-003755
• OSTI ID: 4307009
• Journal Information: IRE Transactions on Nuclear Science, Journal Name: IRE Transactions on Nuclear Science Journal Issue: 3 Vol. 5; ISSN 0096-2015
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

CHARGED PARTICLES
CONVERSION
DECAY
EFFICIENCY
ENERGY
EQUATIONS
EXCITATION
IMPURITIES
INSTRUMENTS
LIGHT
LOW TEMPERATURE
MEASURED VALUES
MONOCRYSTALS
PHOSPHORS
PULSES
SCINTILLATIONS
SODIUM IODIDES
TEMPERATURE
USES