No, there’s nothing human+portable that will provide enough protection for it to be worthwhile:
Unlike charged particles, a certain percentage of gammas will always make it through the absorber, and it is useful to consider the half-value thickness of a given absorbing material for the gamma ray energies of interest.
No, there’s nothing human+portable that will provide enough protection for it to be worthwhile:
https://sciencedemonstrations.fas.harvard.edu/presentations/α-β-γ-penetration-and-shielding
Neutrons require similar shielding.
It’s possible to block alpha emissions with skin/paper and beta with a sheet of foil, gamma and neutron are scary