spontaneous fission in Cf-252

[mbaron]

Dear forum users,

I would like to do a calculation for diffenrent n-fluxes on Cf-252.
What commands do I need to also account for spontaneous fisson.

Thanks in advance for your help!
Martin

inventory.i:
<< -----set initial switches and get nuclear data----- >>
CLOBBER
GETXS 0
GETDECAY 0
READSF
FISPACT
* Eu-154 in Cf-252
DENSITY 15.1
FUEL 3
Cf-252 4.4578E16
Cf-250 4.2108E16
Cf-249 5.7192E15
<< MIND 1E3 >>
<< -----add fission events to calculation----- >>
USEFISSION
FISYIELD 2 Cf252 Cf250
FISCHOOSE 2 Cf252 Cf-250
<< --------output--------------------------- >>
GRAPH 1 2 0 1
TOLERANCE 0 5.0E3 2.0E-6
UNCERT -1 0.0005 0.001 10 0
HALF
HAZARDS
ROUTES Cf252 Eu154 0.005 0.01 10
<< -----irradiation phase----- >>
TAB1 44
CULTAB
FLUX 2.2E8
ATOMS
TIME 2.5 YEARS
<< -----cooling phase----- >>
FLUX 0.
ZERO
ATOMS
END
* END
/*