INCLUSIVE ENERGY-SPECTRA AND YIELDS OF LIGHT-NUCLEI FROM THE SPONTANEOUS FISSION OF CM-248

The inclusive energy spectra and yields of H-1, H-2, H-3, He-4, He-6, and He-8 isotopes, as well as of the sum of Li and Be isotopes, from t he spontaneous ternary fission of Cm-248 have been measured for the fi rst time. Within experimental errors, the relative yields of hydrogen and helium isotopes (with respect to the yield of He-4) emitted from C m-248 agree with the yields of the corresponding isotopes emitted from Cf-252. The yields of Li and Be isotopes from the spontaneous fission of Cm-248 are considerably less than the corresponding yields from Cf -252 fission. The measured probability of He-4 emission [(2.2 +/- 0.3) x 10(-3) per binary fission event] in Cm-248 spontaneous fission is c onsistent with the previously observed Z(2)/A dependence of the probab ility of spontaneous ternary fission for nuclides with Z greater than or equal to 96.