I have already played with FTFB_BERT_HP and QGSP_BIC_HP. For DD reactions, neutron emission appears for incident energy above 3 MeV only. But below this limit, nothing! It seems that existing libraries does not allow to simulate DD and DT fusion at low energy. Is there any way to simulate low energy fusion reactions at keV incident energies with existing libraries in GEANT4? Or should I create my own physical process with dedicated cross-sections and fusion products angular distributions? In advance, thank you for your help. Cheers.
The DD and DT fusion reactions were not included in the Geant4. Fluka, may be due to the cut off energy of ions.the Drosg2000 can simulated the neutron filed of DD and DT reaction, i think it can satisfy common purposes, such as radiation protection . In my opinions, the crittical problem in DD and DT exact simulation is the information of D and T in the target, if you needs an accurated neutron fileds.
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