LI,LII,LIII, andMInternal Conversion Lines of the 411.8-kev Transition inHg198

The $L_{\mathrm{I}}:L_{\mathrm{II}}:L_{\mathrm{III}}:M$ internal conversion ratios for the 411.8-kev $\gamma$-ray transition in ${\mathrm{Hg}}^{198}$ were measured and compared with the theoretical $E2\mathrm{}$ values. The results indicate that the finite nuclear size effect, if present, is small.