核医学検査時の手指被爆 : (A)In Vitro test ^<125>I 中心に : (B)In Vivo test ^<99m>Tc 中心に

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In this paper, we measured the radiation doses of a finger from technics in nuclear medicine. (A) In Vitro Test Detail dose distribution within finger tissue from handling a test tube filled with ^<125>I, ^<131>I, and ^<59>Fe in radioimmunoassay were obtained with numerical calculations based on Henson's formula.……(Fig. 1〜4) And, this data were compared with the experimental results of TLD measurement and Field test.…… (Table 1,2) Measured values apporximated the value with numerical calculations. In this result, when we treated ^<125>I (1μCi/2hr/day) at the work, our finger doses might be estimated 6〜150m rads/month. We should not be neglect low dose rate radiation from radioimmunoassay. (B) In Vivo Test In order to study the syringe and vial bottle containing ^<99m>Tc solution, we measured spatial dose around the Pb-shield when that was shielded and nonshielded with TLD method.……(Fig. 6,Fig. 8,and Fig. 11) Isodose distribution from the syringe and vial bottle containing ^<99m>Tc solution were obtained the dosimetry with photographic emulsions.……(Fig. 7,Fig. 10) Dose from a low specific activity source was smaller than that from a high specific activity source at surface of syrings. Radiation dose of finger of personal during the injection in nuclear medicine when syringe was shielded and nonshielded measured with TLD method.……(Table 3) In this result, radiation dose of finger from handling Pb-shielded syringe showed a 64.7 percent decrease as compared with nonshielded syringe.
公益社団法人日本放射線技術学会の論文
1980-05-01

核医学検査時の手指被爆 : (A)In Vitro test ^<125>I 中心に : (B)In Vivo test ^<99m>Tc 中心に

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