Message: Spontaneous fission source 252Cf in Geant4 !!  Not Logged In (login) 
Dear Experts
I am trying to define the spontaneous fission source 252Cf in Geant4 using G4RadioactiveDecay class as defined in example rdecay01, here is the output of my simulation
======================== run summary ====================== The run was 1000 Cf252[0.0] of 0 eV ===========================================================
Nb of generated particles:
Cf252[0.0]: 1000 Emean = 0 eV ( 0 eV > 0 eV )
Energy and momentum balance : final state  initial state (excluding gamma desexcitation from momentum balance) :
Energy: mean = nan eV ( 0 eV > 0 eV ) Momentum: mean = nan eV ( 0 eV > 0 eV )
Time of life : mean = 0 ps halflife = 0 ps ( 0 ps > 0 ps )
Activity = inf Bq/g (inf Ci/g) but it is not showing any decay of the 252Cf, however for the gamma decay like 137Cs source it is working well and giving me output as
======================== run summary ====================== The run was 1000 Cs137[0.0] of 0 eV ===========================================================
Nb of generated particles:
Ba137[0.0]: 1000 Emean = 1.60229 eV ( 0.0309374 eV > 9.39636 eV ) Ba137[661.7]: 943 Emean = 1.39792 eV ( 0.0309374 eV > 2.97201 eV ) Cs137[0.0]: 1000 Emean = 0 eV ( 0 eV > 0 eV ) anti_nu_e: 1000 Emean = 363.363 keV ( 30.5667 keV > 1.17026 MeV) e: 18163 Emean = 17.9378 keV ( 61.3432 eV > 1.08921 MeV) gamma: 949 Emean = 591.222 keV ( 602.432 eV > 661.661 keV)
Energy and momentum balance : final state  initial state (excluding gamma desexcitation from momentum balance) :
Energy: mean = 14.3855 MeV ( 28.0954 MeV > 3.06438 MeV) Momentum: mean = 52.2021 keV ( 0.000131393 eV > 1.18964 MeV)
Time of life : mean = 1.40033e+09 s halflife = 9.70632e+08 s ( 87292.4 s > 9.66779e+09 s )
Activity = 3.13907e+12 Bq/g (84.8398 Ci/g) can anybody tell me how to resolve this problem. I am currently using geant4.9.6.p02 and trying to see decay of 252 source using G4GeneralParticleSource as a particle generator Thanks !!

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