Measurements of Depth-Dose Distributions in a Phantom for Gadolinium Neutron Capture Therapy
The isotope gadolinium (157Gd) has been suggested as an alternative neutron capture therapy (NCT) agent to 10B (1). In a previous communication, we reported the radiation effect of Gd neutron capture reactions in cultured Chinese hamster cells (2). We also presented the calculation results of the depth-dose distributions for neutrons, gamma-rays and internal conversion electrons using the Musashi thermal neutron beam (3). In this paper, the depth-dose distributions for thermal neutron flux, capture gamma ray and internal conversion electron dose rates have been measured in a cylindrical phantom with a simulated tumor containing Gd in terms of Gd concentration, neutron beam size and tumor site.
KeywordsThermal Neutron Neutron Beam Thermal Neutron Flux Gold Foil Simulated Tumor
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