孟加拉国迈门辛格医学院医院校园对医护人员和公众的辐射风险评估

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引用次数: 0

摘要

电离辐射通过诊断和治疗过程给医院的病人带来巨大的好处,但不必要的辐射可能给医护人员和公众造成短期和长期的麻烦。本研究的目的是监测孟加拉国迈门辛格医学院医院(Mymensingh Medical College Hospital, MMCH)校园的实时辐射情况,并评估对医护人员和公众的辐射风险。2022年8月至9月,通过原位技术,使用数字便携式辐射监测设备在MMCH校园完成了实时辐射监测。对医护人员和公众的实时辐射剂量率和计算年有效剂量范围分别为0.25 ~ 4.11 μSv/h(平均值:1.438±0.331 μSv/h)和0.438 ~ 8.585 mSv(平均值:2.529±0.627 mSv)。以年有效剂量为基础,估算了医院医务人员和公众的终身癌症风险(ELCR),其范围为8.436 × 10-3 ~ 16.572 × 10-3,平均值为10.667 × 10-3。MMCH校区的平均ELCR高于世界平均值。在大型医院院区进行实时辐射监测,对于发现辐射发生设备的故障和放射性物质的错误处理至关重要。该研究将有助于最大限度地降低大医院校园内医护人员和公众的辐射风险,从而确保医院环境不受放射性污染。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Estimation of Radiological Risk on Healthcare Workers and Public in Mymensingh Medical College Hospital Campus, Bangladesh
Ionizing radiation gives immense benefit to the patient in the hospital through diagnostic and therapeutic procedures but unnecessary radiation may cause short- and long-term trouble to healthcare workers & public. The purpose of the study is to monitor the real-time radiation in the Mymensingh Medical College Hospital (MMCH) Campus of Bangladesh and assessment of radiological risks to healthcare workers & public. Real-time radiation monitoring was accomplished in the MMCH campus from August-September 2022 using digital portable radiation monitoring devices through the In-Situ technique. The real-time radiation dose rates & calculated annual effective doses to healthcare workers and the public ranged from 0.25-4.11 µSv/hr (mean: 1.438 ± 0.331 μSv/h) and 0.438-8.585 mSv (mean: 2.529 ± 0.627 mSv) respectively. The excess lifetime cancer risk (ELCR) among healthcare worker & public on the MMCH campus were estimated based on the annual effective dose and ranged from 8.436 × 10-3 to 16.572 × 10-3 (mean: 10.667 × 10-3). The mean ELCR in the MMCH campus is higher than that of the worldwide average value. Real-time radiation monitoring in the big hospital campus is vital for detecting a malfunction of the radiation-generating equipment and wrong handling of the radioactive substance. The study would help for minimizing the radiological risk to healthcare workers & public in the big hospital campus, thereby would ensure the hospital’s environment is free from radioactive contamination.
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