Spectrometer studies of the radiations of some neutron-deficient isotopes of xenon and iodine

Abstract

Neutron-deficient isotopes of xenon have been produced by (p, xn) reactions with high-energy protons on potassium iodide targets. The xenon activities were deposited on foils by the glow discharge technique and their radioactive properties were measured. Nineteen-hour Xe¹²² decays by electron capture to 3.5-minute I¹²². Gamma rays of 182 and 235 kev accompany this decay. I¹²² decays by emission of 3.12-Mev positrons. Xe123 decays with a 1.8-hour half-life into 13-hour I¹²³. Positrons of 1.7±0.1 Mev, 150-kev gamma rays, and x-rays are associated with this decay. Xe¹²¹ has a half-life of 40±10 minutes for decay into 1.6-hour I¹²¹.