How to record the neutron fluence use the G4

how to record the neutron fluence use the G4

for example with a primitive scorer:
https://geant4-userdoc.web.cern.ch/UsersGuides/ForApplicationDeveloper/html/Detector/commandScore.html#id9

and an appropriate filter:
https://geant4-userdoc.web.cern.ch/UsersGuides/ForApplicationDeveloper/html/Detector/commandScore.html#id4

:slight_smile:

thanks sir , i want to record the room scattering neutron fluence use the G4 ,but i don’t know how to record it .