| NI Yuan-yuan,TU Yu,ZHOU Ju-ying.An investigation about the effect of masks on surface dose by using MOSFET detector[J].Chinese Journal of Radiological Medicine and Protection,2008,28(3):289-290 |
| An investigation about the effect of masks on surface dose by using MOSFET detector |
| Received:July 03, 2007 |
| DOI： |
| KeyWords:MOSFET Mask Surface dose |
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| Abstract:: |
| Objective To measure the effect of masks on surface dose for the use of MOSFET detector. Methods The experimental objects were irradiated with 6MV and 15MV X-rays and the objects were divided into masked group and non-masked group before exposure. The dose measurements of each group was measured for 5 times and 5 types of masks of different density were measured by using MOSFET detector. Results The surface dose increases significantly after applying the mask; and different types of masks have identical effect on it. Conclusion The dose build-up regions have changed and surface dose increases considerably after the application of masks. Hence, proper attention should be paid to the radiation effects of the skin surface in clinical therapy. |
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