Detection of Charged Particles by Polymer Grafting

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Science  24 Aug 1973:
Vol. 181, Issue 4101, pp. 743-744
DOI: 10.1126/science.181.4101.743


Tracks of fission fragments from a californium-252 source have been revealed by graft copolymerization. A 15 percent solution of propenoic (acrylic) acid monomer was reacted with irradiated cellulose triacetate for 24 hours at 55°C. Copolymer forms preferentially at the track sites and it can be dyed with rhodamine B because of its acid and hydrophylic properties. After the dyeing, the tracks were seen by using fluorescence microscopy.