Subject: What is the maximum non lethal level of incorporation of L-Cys sulphur S35

I think that the transmutation of weak beta emmiters like S35, could have 
potentially therapeutical uses, if one could induce and accelerate the local 
transmutation of previously absorbed radioisotopes by means of relatively cheap 
Am-Be neutron sources,for fighting solid cancer cells, taking advantage of the 
subsequent chemical reactions caused by the replacement of sulphur by chlorine, 
disrupting cancer cells proteins and rich Cysteine metastases related proteases.

Re: What is the maximum non lethal level of incorporation of L-Cys sulphur S35