ABSTRACT The Effect Additional Carboxymethyl Chitosan Concentration on Polyvinyl Alcohol Hydrogel Produced By Irradiation Technique Has Been Studied. The Solution of CM-Chitosan (0.5, 1.0, 2.0 And 3.0 % W/V) Was Mix With The Solution of PVA (10 % V/V) By Ratio of 1 : 4 And Irradiated By Gamma Ray At The Dose of 30 Kgy And Dose Rate Was 7.5 Kgy/Hr. The Measured Charasteristic Consisted of Gel F…