Background and Objective: The most common intravascular brachytherapy sources include 32P, 188Re, 106Rh and 90Sr/90Y. In this research, skin absorbed dose for different covering materials in dealing with these sources were evaluated and the best covering material for skin protection and reduction of absorbed dose by radiation staff was recognized and recommended.Method: Four materials including...

Introduction Pterygium is a wing-shaped, vascular, fleshy growth that originates from the conjunctiva and can spread into the corneal limbus and beyond. Beta irradiation after bare sclera surgery of primary pterygium is a simple, effective, and safe treatment, which reduces the risk of local recurrence. Materials and Methods Dosimetric components of strontium-90 (90Sr), phosphorous-32 (32P), an...

須 山 一 兵*),江 藤 久 美**),:丸 山隆 司***),加 藤 義 雄****),市 川 竜 資*):放 射 線 医 学 総 合 研 究 所,環 境 衛 生 研 究 部*),放射線医学総合研究所,生 物 研 究 部**),放射線医学総合研究所,物 理 研 究部***),放射線医学総合研究所,養 成 訓 練 部****),千 葉市 穴 川4丁 目9番1号 〒260 Continuous irradiation/Fish embryo/Chromosome aberration The chromosome aberrations (chromosome bridges) were observed at the blastula stage of Oryzias eggs treated in the following three manners, 1) incubated...

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background : the aim of the current study was to develop a marking technique as an internal marker to mark post blood meal mosquitoes by using stable phosphate isotope 32 p and determine the optimal concentration of it. methods : an isotonic physiological saline solution, containing different concentration of radioactive isotope 32 p-labeled disodium phosphate (na 2 h 32 po4) was injected into ...

in the recent years, interstitial brachytherapy implantation has become the treatment of choice for early stage prostate cancer patients. treatment of prostate cancer with radiation is traced back to 1909. originally this treatment modality was very crude and could not gain much popularity till 1982. advancements in radioactive source designs, introduction of new low energy radioactive sources,...