The PIGME method for fluorine determination

Abstract

A comparison has been carried out of the precision which can be achieved in fluorine determination by the detection of low or high energy gamma rays from proton interactions. Allowance is made for the effects of background gamma rays and stopping power corrections in the interpretation of results from geological materials, coal, fly ash and laboratory mixtures. The results show that the strength of low energy gamma rays can be used to define a background correction to the observed intensity at high energies which then give better statistical accuracy than low energy fluorine gamma rays when a large detector is used.