Investigation using an advanced extremity gamma instrumentation system of options for shielding the hand during the preparation and injection of radiopharmaceuticals.
Investigation using an advanced extremity gamma instrumentation system of options for shielding the hand during the preparation and injection of radiopharmaceuticals.
复制标题
使用先进的四肢伽马仪器系统进行调查，该系统具有多种选项，可在放射性药物的制备和注射过程中保护手部。
DOI：
10.1088/0952-4746/23/1/305
复制
发表时间：
2003
影响因子：
1.5
通讯作者：
C J Martin
中科院分区：
文献类型：
--
作者：
M. Whitby;C J Martin
在医院准备和注射放射性药物的工作人员可能会受到大量的辐射剂量。这些剂量可能高到足以保证他们被归类为辐射工作者。局部屏蔽对手指剂量的影响进行了研究。研究了放射性核素药房工作人员配制放射性液体和核医学科工作人员配制和注射放射性药物的情况。使用电子肢体剂量监测器（一种高级肢体伽马仪器系统（AEGIS））记录测量值，该仪器佩戴在指尖附近。电子剂量计允许确定在不同程序期间接收的剂量模式。记录了不同工作人员在许多常规会议期间接受的个人操作剂量。还使用AEGIS测量了屏蔽小瓶和注射器周围的剂量分布。在放射性核素药房中，放射性液体的小瓶被放置在钨屏蔽中，而在核医学中使用简单的铅罐。注射器护罩用于配药和患者注射的某些部分。剂量分布数据已用于解释监测结果。在分配过程中使用注射器防护罩可将手指剂量减少75- 85%。剂量率峰值降低了60%，由于高剂量率区域的限制，高剂量率照射期缩短了三分之一。在核医学中，工作人员分配和注射放射性药物的极限剂量具有相似的量级。分配期间接收的剂量从10到555 microGy不等，这取决于是否直接处理含有放射性药物的小瓶。根据注射期间经历的困难程度，从单独注射中接受的剂量从1到150 microGy不等。
Staff preparing and injecting radiopharmaceuticals in hospitals may receive significant radiation doses to their hands. These doses may be high enough to warrant that they be classified as radiation workers. The influence of local shielding on finger doses has been investigated. Staff preparing radioactive liquids in a radionuclide dispensary and drawing up and injecting radiopharmaceuticals in a nuclear medicine department have been studied. Measurements have been recorded with an electronic extremity dose monitor, an advanced extremity gamma instrumentation system (AEGIS), worn near to the finger tip. The electronic dosimeter allows the pattern of doses received during different procedures to be determined. Doses received for individual manipulations during many routine sessions have been recorded for different staff members. Dose distributions around shielded vials and syringes have also been measured using AEGIS. In the radionuclide dispensary the vials from which radioactive liquids are dispensed are held in tungsten shields, whereas in nuclear medicine simple lead pots are used. Syringe shields are employed for some parts of dispensing and patient injections. Data on dose distributions have been used in interpretation of results from monitoring. Use of syringe shields during dispensing reduced the finger dose by 75-85%. The peaks in dose rate were 60% lower, and periods of exposure to high dose rates were reduced in length by a third because of the restriction in the region of high dose rate. The extremity doses to staff dispensing and injecting radiopharmaceuticals in nuclear medicine were of similar magnitude. Doses received during dispensing varied from 10 to 555 microGy depending upon whether the vial containing the radiopharmaceutical was directly handled or not. Dose received from individual injections varied from 1 to 150 microGy depending on the degree of difficulty experienced during the injection.