Abstract：Objective To understand the radiation-shielding situation of the CT room in a hospital and
to master the additional exposure dose of practitioners and the public around the room. Methods The
radiation levels of the CT room and surrounding environment were monitored and evaluated according
to the national standards. Results The monitoring results under the boot state for external exposure of
practitioners and 30 cm outside the lead glass were about (310±10) nSv/h and 105～360 nSv/h. The results
in other monitoring areas were close to the background levels of indoor environment in CT room. Additional
radiation dose of practitioners and the public around CT room each year was far less than the national
standards. Conclusion The radiation shielding effects of CT room met the requirements of national
standards, which would not damage the health of CT practitioners and the public around.
张雯，成浩. 某医院螺旋CT机房周围辐射水平状况调查与评价[J]. 中国医疗设备, 2016, 31(8): 129-130.
ZHANG Wen, CHENG Hao. Investigation and Evaluation of Radiation Levels Around the Spiral CT
Room in a Hospital. China Medical Devices, 2016, 31(8): 129-130.
