Only simulate beta, IC or Auger spectrum from a radioactive source

Particles, Track, Event, Run and Biasing
1

_Geant4 Version: 11.3.0
_Operating System: macOS
_Compiler/Version: Clang 19.1.7
_CMake Version: 3.31.6

Hi!

I want to retrieve the emitted energy from a radionuclide using Geant4 simulation. To do this, I placed my radioactive source at the center of an ‘infinite’ sphere, ensuring all emitted energy is deposited into the water medium. However, for Tb-161, I didn’t retrieve the total emitted energy: I obtained 224.08 keV in the simulation compared to 238.84 keV in the ICRP 07 data (It works for Lu-177).

Is it possible to simulate the beta, IC, Auger, X-ray or gamma spectrum individually within Geant4 directly from G4RadioactiveDecayPhysics?