Analysis of Single Crystal Pulse-Height Distributions

A method for analyzing the pulse-height distribution of a single NaI crystal gamma ray spectrometer is presented. The method consists in solving the matrix equation, P=KN(hv), for N(hv), the incident gamma ray spectrum in which P is the pulse-height distribution, and K is the sensitivity matrix of the detector. A procedure for obtaining the elements of K from curves obtainable from the pulse-height distributions produced by a few standard monoenergetic sources has been devised. Experimental results are presented which demonstrate the validity of the method.