Protons from the Deuteron Bombardment of the Separated Isotopes of Chlorine

The bombardment of chlorine by 3.2-Mev deuterons is found to give rise to several groups of protons and possibly to one group of alpha-particles. By bombarding targets in which the proportion of heavy chlorine was more than doubled an assignment of some of the groups has been possible. The assignment of Q values is as follows. Cl³⁵(dp)Cl³⁶: 6.31; 5.35; and 1.50 Mev. Cl³⁷(dp)Cl³⁸: 4.02; 3.02; 2.10. These figures lead to masses of 35.9808 and 37.9806 for the isotopic masses of Cl³⁶ and Cl³⁸, respectively. A group which appears at 12 cm range we assign to the light isotope according to the reaction Cl³⁵(dα)S³³. The Q value is 9.1 Mev which gives a mass of 32.9828 for S³³ in reasonable agreement with the mass derived from the S³²(dp)S³³ reaction.