|
|
|
| Analysis of radiation level and exposure dose of personnel in the diagnosis and treatment workplace of nuclear medicine in Guangdong Province |
| ZHANG Zaoqin, GENG Jiwu, LIN Lan, YANG Yuhua, XU Zhiqiang, XIA Bing |
| Guangdong Province Hospital for Occupational Disease Prevention And Treatment, Institute of Occupational Health Assessment, Guangzhou 510300 China |
|
|
|
|
Abstract Objective To understand the status of radiation protection at workplace and the level of individual dose in some clinical nuclear medicine departments in Guangdong Province, so as to provide data support for finding the key points to control their occupational hazards.Methods Taking 14 Grade ⅢA hospitals in Guangdong Province as the study objects, the ambient dose equivalent rate, the level of radioactive contamination and the individual dose (Hp(10)) were monitored or estimated according to the relevant national standards.Results A highest ambient dose equivalent rate of 166 μSv/h was found around the operating holes of 18F synthesis chamber. The dose rates to hands were generally higher during the procedures of packaging and injecting radionuclides. In the packaging procedure, the highest dose rates were 3720 μSv/h, 1220 μSv/h and 468.2 μSv/h for packaging 18F, 131I and 99Tcm, respectively; and there were 537 μSv/h and 882 μSv/h for injecting 18F and 99Tcm. In the 18F injection room of one hospital, the beta surface contamination were as high as 99.6 Bq/cm2 and 1.6 Bq/cm2 on the working table and a staff hands, both of them exceeded the national standards. The annual effective dose of nuclear medicine staff ranged from 0.08 mSv to 5.18 mSv. Without protective measures, the annual equivalent dose of hands ranged from 0.02 mSv to 390 mSv and from 0.57 to 85.62 mSv for repacking and injection staff, respectively. However, the exposure to their lens, whole body and abdomens were relatively low.Conclusion Workplace protection in nuclear medicine departments is fairly well, however, the self-protection should be further reminded. Skillful operation can shorten the exposure time, and other reasonable protective measures will reduce the radiation dose.
|
|
Received: 02 December 2017
|
|
|
|
|
|
[1] 李少林,王荣富.核医学[M].7版,北京:人民卫生出版社2008:1-4.
[2] United nations scientific committee on the effect of atomic radiation.UNSCEAR 2008 Report to the General Assembly,sources and effects of ionizing radiation[R].New York:United Nations,2010.
[3] 中华医学会核医学分会.2014年全国核医学现状普查简报[J].中国核医学与分子影像杂志,2014,34(5):389.
[4] 梁婧,张震,练德幸,等.核医学诊断工作场所辐射水平及防护现状调查[J].中华放射医学与防护杂志,2015,35(1):69-72.
[5] 张震,张奇,朱卫国,等.核医学放射防护状况调查与分析[J].中华放射医学与防护杂志,2012,32(6):642-644.
[6] 杨浩贤,梁棉英,谭光享.广东省核医学科工作场所放射卫生防护现状分析[J].现代生物医学进展,2010,10(15):2880-2883.
[7] 王宏芳,娄云,万玲,等.核医学科操作人员及相关场所辐射水平调查[J].现代预防医学,2015,42(4):601-603.
[8] 李明芳,张素芬,贾育新,等.2003-2012年广东省放射治疗和核医学工作人员受照剂量水平分析[J].中国职业医学,2014,41(5):527-529.
[9] 邓君,王拓,范胜男,等.2015年我国医用放射工作人员职业性外照射个人剂量水平与分析[J].中国辐射卫生,2017,26(4):398-400.
[10] 崔慧玲,代彩云,牟庆超,等.不同注射法对手部辐射剂量的影响[J].中国辐射卫生,2013,22(6):694-695.
[11] International Commission on Radiological Protection.Statement on tissue reactions[EB/OL]. http:www. icrp. org/docs/ref4825-3093-1464.
[12] Radiation Protection and Safety of Radiation Sources:International Basic Safety Standards, General Safety Requirements Part 3 No. GSR Part 3.[R].Vienna, IAEA,2014.
[13] 王红波,张钦富,侯长松,等.医院核医学科工作人员内照射监测的必要性研究[J].中国工业医学杂志,2016,29(5):333-355. |
|
|
|
