Internal Conversion inNe22

Abstract

The internal conversion coefficient of the 1.28-Mev $\gamma$ ray in ${\mathrm{Ne}}^{22}$ has been measured to determine its multipole character. It has been found to be $E2\mathrm{}$. The spin and parity assignments to the ${\mathrm{Ne}}^{22}$ excited state and the ${\mathrm{Na}}^{22}$ ground state are discussed.