Weird emission probabilities for discrete betas from Tc-99

[Fgeser (Federico Alejandro Geser)]

Dear FLUKA experts,

After searching for a while in the forum, I came across the following publication:

~70 additional electrons appearing in beta decay

Hello, I am trying to generate the electron spectrum in radioactive decay, in particular regarding the isotope Se83, the decay chain is as follows Se83 → Br83 + e + nu_e Br83 → Kr83 + e + nu_e The set-up is very simple, I divided the space into two regions, a sphere and a spherical shell surrounding, the isotopes are created in the center at rest; everything is made of vacuum except the black hole surrounding everything. I used the RADDECAY card to activate the decay, and USRBDX cards (conn…

Probably this is exactly the problem I’m having. Could it be that Tc-99 was missed when this was corrected?

Thank you in advance for your help!