Cf252 Spectrum Details (Original/SuperSim provided spectrum)
This is the Cf252 Neutron spectrum I have been using in all previous Cf252 neutron simulations. This spectrum was provided as a copy of one used in SuperSim. This version is effectively a fit to an equation of the form N(E)=sqrt(E)*exp(-E/T) for some fitting parameter T (T is approx. 1.4 here). This version didn't actually simulate neutrons at low energies (below 1 MeV) and is therefore not appropriate for sims where we care about low energy neutrons. In particular this set should really not be used with anything except SuperSim; I include it here only to show that we have been using it for a while.
Data
| Table 1: Cf252 Spectrum | |
|---|---|
| Energy (MeV) | Weight |
| 1 | 3.2955695E-01 |
| 2 | 2.3298226E-01 |
| 3 | 1.4144214E-01 |
| 4 | 8.0374003E-02 |
| 5 | 4.3944927E-02 |
| 6 | 2.3412127E-02 |
| 7 | 1.2238575E-02 |
| 8 | 6.3043979E-03 |
| 9 | 3.2094125E-03 |
| 10 | 1.6179264E-03 |
| 11 | 8.0890071E-04 |
| 12 | 4.0154420E-04 |
| 13 | 1.9809097E-04 |
| 14 | 9.7185987E-05 |
| 15 | 4.7446862E-05 |
| 16 | 2.3061627E-05 |
| 17 | 1.1164286E-05 |
| 18 | 5.3849768E-06 |
| 19 | 2.5886922E-06 |
| 20 | 1.2406097E-06 |
| 21 | 5.9285462E-07 |
| 22 | 2.8255806E-07 |
| 23 | 1.3433582E-07 |
| 24 | 6.3719196E-08 |
| 25 | 3.0158206E-08 |
| 26 | 1.4244713E-08 |
| 27 | 6.7153041E-09 |
| 28 | 3.1600040E-09 |
| 29 | 1.4844363E-09 |
| 30 | 6.9618697E-10 |