Command not found when using /process/had/rdm in gammaknife example

Particles, Track, Event, Run and Biasing
1

Geant4 Version: 11.3.2
Operating System: Pop!_OS 22.04 LTS(Ubuntu based)
Compiler/Version: g++ 11.4.0
CMake Version: 3.22.1

I was trying to use the gammaknife example in the geant4 source, and upon the execution of the macro file, error occured at this line:

/process/had/rdm/thresholdForVeryLongDecayTime 1.0e+60 year

The error is the following:

/process/had/rdm/thresholdForVeryLongDecayTime 1.0e+60 year
***** COMMAND NOT FOUND </process/had/rdm/thresholdForVeryLongDecayTime 1.0e+60 year> *****

***** Batch is interrupted!! *****

-------- WWWW ------- G4Exception-START -------- WWWW -------
*** G4Exception : UIMAN0123
      issued by : G4UImanager::ApplyCommand
Command aborted (100)
Error code : 100
*** This is just a warning message. ***
-------- WWWW -------- G4Exception-END --------- WWWW -------

And the execution stops there.
Does anyone know how to fix this error?

2

That error appears when Radioactive Decay is not activated, e.g. if you use the physics list FTFP_BERT.

If, instead, you use a physics list with particleHP activated - which automatically includes Radioactive Decay - then everything should work fine.
For instance:
export PHYSLIST=FTFP_BERT_HP
(or QGSP_BIC_HP, Shielding, etc.).

3

Thanks! It solved my problem