Positron Annihilation in Some Organic Compounds

Abstract

The intensity I2 and the mean life τ2 of the long-lived component in positron decay have been measured in a number of organic halides using a fast time to pulse-height converter. In general, compounds containing a chlorine atom showed an I2 of about 16%, those containing bromine an I2 of about 10%, and those containing iodine an I2 of about 4%. The τ2 values for a number of organic compounds containing chlorine varied from 1 to 2 n sec.