Journal of Radiation Industry (방사선산업학회지)

Korean Society of Radiation Industry (한국방사선산업학회)
권호 표지

Evaluation of Lens Dose according to the Shield Type during Administration of Radiopharmaceuticals

방사성의약품 투여 시 차폐 종류에 따른 수정체선량 평가

  • Received : 2018.01.04
  • Accepted : 2018.02.17
  • Published : 2018.03.31

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Abstract

Radiation workers in nuclear medicine use radioisotopes for diagnostic evaluation and treatment, so Their risk of radiation exposure of the lens is greater than for other medical staff. Furthermore, the ICRP report 118 has suggested to reduce the occupational equivalent dose limit for the lens from $150mSv{\cdot}year^{-1}$ to 20 mSv in a year, averaged over defined periods of 5 years, with no single year exceeding 50 mSv. Therefore, the radiation worker in nuclear medicine may have risk to exceed the equivalent dose limit of the lens. To evaluate the performance of the shield for lens protection, the dose of the lens was measured using an ED3 electron dosimeter. During administration of the radiopharmaceuticals, lens dose was measured in non-shielding and with syringe shield, lead glass, and L-block. Also, based on the measured doses, Calculated the dose per 1 mCi of used radioisotope to help make the work plan. Additionally, compared the measurements of the OSL and ED3 over 6 month period to evaluate whether the lens dose of OSL could replace the ED3 measurements.

Keywords

Acknowledgement

Supported by : Korea Radiation Safety Foundation (KORSAFe), Nuclear Safety and Security Commission (NSSC)

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