Experimental study of the influence of non-proportional response of NaI(Tl) scintillation crystals upon the energy resolution for gamma rays

Journal Article · Wed Nov 01 00:00:00 EST 1961 · Nuclear Instruments and Methods

DOI:https://doi.org/10.1016/0029-554X(61)90078-7· OSTI ID:4790733

Thieberger, P.; Bonacalza, E. C. O.; Ryde, H.

The resolution of a summing Compton spectrometer ls accurately measured for several gamma ray energles. For the events detected, only one Compton scatterlng takes place in the first crystal. Thus for the part of the energy that is released ln the first crystal, the contrlbutlon to the line width arising otherwise from a varyng number of Compton electrons and non-proportlonal response of the scintillator is not present. Thls contrtbution ts evaluated by comparlng, for each energy, the resolutlon of the summing Compton spectrometer with the resolution expected if the total energy were shared by the two crystals in the same ratio, but multiple scatterlng were prcsent tn both of them. The results agree with theoretlcal expectattons. (auth)

• Research Organization: Nobel Inst. of Physics, Stockholm
• Sponsoring Organization: USDOE
• NSA Number: NSA-16-011890
• OSTI ID: 4790733
• Journal Information: Nuclear Instruments and Methods, Vol. 14, Issue C; Other Information: Orig. Receipt Date: 31-DEC-62; ISSN 0029-554X
• Publisher: Elsevier
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ENGINEERING AND EQUIPMENT
COMPTON EFFECT
ENERGY LEVELS
GAMMA RADIATION
RESOLUTION
SCATTERING
SCINTILLATION COUNTERS
SODIUM IODIDES
SPECTROMETERS
THALLIUM