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. ${\mathrm{Cl}}^{35}(\mathrm{dp}){\mathrm{Cl}}^{36}$: 6.31; 5.35; and 1.50 Mev. ${\mathrm{Cl}}^{37}(\mathrm{dp}){\mathrm{Cl}}^{38}$: 4.02; 3.02; 2.10. These figures lead to masses of 35.9808 and 37.9806 for the isotopic masses of ${\mathrm{Cl}}^{36}$ and ${\mathrm{Cl}}^{38}$, respectively. A group which appears at 12 cm range we assign to the light isotope according to the reaction ${\mathrm{Cl}}^{35}(d\ensuremath{\alpha}){\mathrm{S}}^{33}$. The $Q$ value is 9.1 Mev which gives a mass of 32.9828 for ${\mathrm{S}}^{33}$ in reasonable agreement with the mass derived from the ${\mathrm{S}}^{32}(\mathrm{dp}){\mathrm{S}}^{33}$ reaction.