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Enhancement in dose sensitivity of polymer gel dosimeters composed of radiation-crosslinked gel matrix and less toxic monomers
2015
Journal of Physics, Conference Series
Polymer gel dosimeters based on radiation-crosslinked hydroxypropyl cellulose gel were prepared, which comprised 2-hydroxyethyl methacrylate (HEMA) and polyethylene glycol #400 dimethacrylate (9G) as less toxic monomers and tetrakis (hydroxymethyl) phosphonium chloride (THPC) as an antioxidant. The dosimeters exposed to 60 Co γ-rays became cloudy at only 1 Gy. The irradiated dosimeters were optically analyzed by using a UVvis spectrophotometer to evaluate dose response. Absorbance of the
doi:10.1088/1742-6596/573/1/012028
fatcat:nuh5jps57jd3nexuh2acxrt5aa