Raman spectroscopy are used to characterize the chemical changes in normoxic polyhydroxyethylacrylate gel dosimeter (PHEA) induced by radiation. Irradiations in the low dose region are performed and the polymerizations of PHEA gels are monitored by the observing the changes of Raman shift intensity of the carbon covalent bond of PHEA originated from both monomer and the cross-linker. The variat...

2 V. V. Voevodsky, Informal discussion of the Faraday Society, Sheffield University, Sheffield (England), September 4-5, 1958, p. 25. 3N. Bach, "Oxygen and Peroxide Effects in Organic Liquids"; J. Weiss, "Oxygen and Peroxide Effects in Aqueous Solutions"; M. Magat, "Oxygen and Peroxide Effects on Organic Solids," papers read at the International Congress of Radiation Research, Burlington, Vermo...

Irradiation of whole blood and blood components before transfusion is currently the only accepted method to prevent Transfusion-Associated Graft-Versus-Host-Disease (TA-GVHD). However, choosing the appropriate technique to determine the dosimetric parameters associated with blood irradiation remains an issue. We propose a dosimetric system based on the standard Fricke Xylenol Gel (FXG) dosimete...

Introduction: Polymer gel dosimeters contain chemical materials sensitive to the radiation which are polymerized by the radiation as a function of absorbed dose. So information of spatial dose distribution can be extracted by imaging from irradiated gel. Among imaging techniques, computed tomography (CT) poses as an attractive method because of practical advantages such as acce...