| LI Heng-xiang,ZHANG Hua-fang,CHEN Pei-zhong,et al.Development of a mobile shield for X_ray radiography and its application in diagnosis of endemic diseases[J].Chinese Journal of Radiological Medicine and Protection,2007,27(4):389-392 |
| Development of a mobile shield for X_ray radiography and its application in diagnosis of endemic diseases |
| Received:January 10, 2007 |
| DOI： |
| KeyWords:Protection shield Endemic diseases X-ray radiography |
| FundProject: |
| Author Name | Affiliation | | LI Heng-xiang | Shandong Institute for Prevention and Treatment of Endemic Diseases, Jinan 250014, China | | ZHANG Hua-fang | Shandong Institute for Prevention and Treatment of Endemic Diseases, Jinan 250014, China | | CHEN Pei-zhong | Shandong Institute for Prevention and Treatment of Endemic Diseases, Jinan 250014, China | | 马爱华 | Shandong Institute for Prevention and Treatment of Endemic Diseases, Jinan 250014, China | | 王玉涛 | Shandong Institute for Prevention and Treatment of Endemic Diseases, Jinan 250014, China |
|
| Hits: 3566 |
| Download times: 2391 |
| Abstract:: |
| Objective To develop a mobile shield for X_ray radiography in order to improve the protection of operators against the exposure in diagnosis of endemic diseases at site.Methods Firstly,X_ray tube was routinely fixed on the stand while the operator was 1 and 2 m respectively away from the axis of it. When the shanks and forearms of the patient were exposed fractionally, the dose_equivalent rates of operator were detected at their forehead, chest and abdomen by pressurized ionization chamber. Secondly, the mobile shield was added befor X_ray tube. The same parts were exposed and the dose_equivalent rates at the corresponding positions were detected as above. Fifty_five people were examined in areas with endemic diseases. The X_ray films were sham_exposed as control. The photographing quality was assessed. Results In the routine way, the dose_equivalent rates for the forearms were 1043, 1191, and 1297 μSv/h at 1 m, and 512, 673, and 798 μSv/h at 2 m, while for the shanks were 1356, 1489, 1675 μSv/h at 1 m, and 743, 978 and 1127 μSv/h at 2 m, respectively. After the shiled was added, the dose_equivalent rates for the forearms reduced to 1.7, 2.9 and 7.9 μSv/h at 1 m, and 0.6, 1.3 and 3.1 μSv/h at 2 m, while for the shanks were 2.2, 3.4, 9.1 μSv/h at 1 m, and 0.9, 1.2, and 3.9 μSv/h at 2 m respectively, which were 1/150_1/800 of the former. Moreover, the percentage of high_quality photots was increased by 30%.Conclusions As a small device, the mobile shield for X_ray radiography is convenient for photograph of multi_parts, which helps to perform the X_ray test safely and effectively in areas of endemic diseases. |
| HTML View Full Text View/Add Comment Download reader |
| Close |
|
|
|
