(b) The fission reaction also releases 7MeV in prompt E Nuclear fission [ X-ray Gamma ray Nuclear fusion photons. (c) bred from uranium- 238 by neutron capture E Plutonium-239 Integral Fast Reactor E Nuclear fission product E Nuclear fission (d) removes some of the uranium-238 and increases the proportion of uranium-235. E Nuclear fuel cycle E Nuclear reactor technology E Plutonium E Enriched uranium