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The following nuclei have induced fission critical energies as listed below. From these data, determine if
the target nuclei are fissile or fissionable.
n
n
n
n
n
n
Target
Nucleus
+
-->
Th-230
+ -->
Np-237
+
-->
Am-241
+ -->
Pu-242
+ -->
Cm-244
+ --> Cm-248
Fissioning
Nucleus
Th-231
Np-238
Am-242
Pu-243
Cm-245
Cm-249
Ecrit (MeV)
6.2
6.0
6.4
5.8
6.2
5.5

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