Scoring mesh- particle filter for alpha and Li7

Hello, I am trying to use scoring mesh technique to score the dose from alpha and Li7 particles. I am using:

/score/quantity/doseDeposit aDep
/score/filter/particle alphaFilter alpha …

The output of my simulation is all zeros. First thing to check, I would like to confirm if the name of the particle is correct. I couldn’t find acceptable arguments for this command under “help” in my interactive session.

Could you please advise?

Many thanks! Leyla