- 期刊
改善放射性同位素藥物注射輻射防護作業
The Improved Radiation Protection in Radiopharmaceuticals Injecting
摘要
放射性同位素藥物注射為醫院核子醫學科之常規臨床作業項目之一。而現今雖然同位素藥物可加戴鉛或鎢套筒，降低人員手部劑量。但是對於注射針筒推柄部分仍無合適屏蔽。為此，敝科嘗試製作鉛合金帽套加設於注射針筒推柄部位，減少推藥時操作人員手部曝露。本研究以核醫科常用之Tl-201 (88.06 MBq)與Tc-99m (808.08 MBq)為標的，以輻射偵檢器測量分別量測其具帽套與不具帽套之1 cm處劑量率。經測量後結果鉛合金帽套可分別減少Tl-201 (88.06 MBq)與Tc-99m (808.08 Mbq) 97.74% and 98.55%的劑量率。顯示鉛合金帽套具有顯著減少人員手部劑量的效果。敝科取財自工作場域的鉛合金製注射針筒推柄帽套具成本低廉及輻防成效佳之特性，可盡合理抑低原則。
並列摘要
Injecting radiopharmaceuticals is a routine work in nuclear medicine department. Although, syringe shields made of tungsten or lead could be used on syringes as a protective device, but the push cake of syringe is not shielded. We attempted to manufacture a lead alloy cap for covering the push cake of syringe, and measured the dosing rate of with and without the lead alloy cape injection of Tl-201 (88.06 MBq) and Tc-99m (808.08 MBq) at a distance of 1 cm respectively. The result showed that the lead alloy cap could decrease the dosing rate by 97.74% and 98.55% for Tl-201 (88.06 MBq) and Tc- 99m (808.08 MBq), respectively. The lead alloy cap has characteristics of marked radiation protective effect and lower cost, thereby to achieve the principles of ALARA.
延伸閱讀
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