Abstract
We have studied the effect of different factors on the nonproportionality of the light yield (L) for a number of inorganic and organic scintillators. The measurements were made in photon energy range from 6 to 88 keV. Unlike the CsI(Tl) scintillators the (E) strong dependence of nonproportionality of light yield on activator concentration (A) was found for NaI(Tl) scintillators at A less then 0.05 wt.%. It was shown that scintillation efficiency, L/E, for NaI(Tl) is extremely sensitive to the activator concentration, surface condition, temperature treatment at the energy close to the L-absorption edge of the iodine atom. For NaI(Tl) a decrease of L/E has been observed by 30-35% of the maximum at an activator concentration of about 0.01 wt.%. For comparison the results of studies of scintillation efficiency as a function of photon energy for CaF/sub 2/(Eu) crystals as well as for organic scintillation crystals, such as paraterphenyl, anthracene and stilbene are presented.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
