Quote:
Originally Posted by Anthony
Penetration of beta in water or flesh is about 5mm per MeV, so unshielded Sr-90 is plenty able to produce localized radiation burns, though not the whole body doses the GURPS radiation rules assume.
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GURPS 3E had rules for localized radiation burns, but I'm not sure if they were ever ported over to GURPS 4E.
Summary of GURPS 3E Compendium 2 rules:
Divide "whole body dose" of ionizing radiation by % of body exposure to determine total Rads of exposure. (e.g., 1/15 for head or one limb).
The GM can also assess the equivalent of Burn damage to the radiated hit location, assessed over several months, with attendant risk of Infection.
Treat damage from massive or charged particles like Alpha particles as just slow-moving burn damage. Treat lighter uncharged particles as pro-rated whole body exposure as described above.