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The total kinetic energy release in the neutron induced fission of $^{235}$Uwas measured (using white spectrum neutrons from LANSCE) for neutron energiesfrom E$_{n}$ = 3.2 to 50 MeV. In this energy range the average post-neutrontotal kinetic energy release drops from 167.4 $\pm$ 0.7 to 162.1 $\pm$ 0.8 MeV,exhibiting a local dip near the second chance fission threshold. The values andthe slope of the TKE vs. E$_{n}$ agree with previous measurements but dodisagree (in magnitude) with systematics. The variances of the TKEdistributions are larger than expected and apart from structure near the secondchance fission threshold, are invariant for the neutron energy range from 11 to50 MeV. We also report the dependence of the total excitation energy infission, TXE, on neutron energy.

The Excitation Energy Dependence of the Total Kinetic Energy Release in 235U(n,f)