| 楔形滤片对X射线辐射质的影响 |
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| 引用本文： | 胡杰,陶建民,张莹,孙光荣,龚卿,陈伟祥.楔形滤片对X射线辐射质的影响[J].中国医学物理学杂志,1999,16(2):67-69. |
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| 作者姓名： | 胡杰 陶建民 张莹 孙光荣 龚卿 陈伟祥 |
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| 作者单位： | 上海铁路局中心医院放射科，上海医科大学肿瘤医院 |
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| 摘 要： | 光子照射野中引入楔形滤片将导致射线辐射质发生改变，继而使楔形野与平野相比，深度剂量发生改变。本文研究楔形野和平野两种情况下的辐射质差异，发现辐射质指数Ｉ变化达２．９％，最大剂量点深度变化达４ｍｍ。为精确治疗，我们建议应测量楔形野的剂量数据。
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| 关 键 词： | 楔形滤片 辐射质 剂量分布 |
| 文章编号： | 1005-200X(1999)02-0067-03 |
| 修稿时间： | 1998-06-30 |
The influence to the radiation quality by the wedge filter |
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| HU Jie,TAO Jian min,ZHANG Ying,et al..The influence to the radiation quality by the wedge filter[J].Chinese Journal of Medical Physics,1999,16(2):67-69. |
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| Authors: | HU Jie TAO Jian min ZHANG Ying |
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| Abstract: | The presence of wedge filter in the photo field will cause the change of beam quality which results in the modification of depth dose distribution comparing with that in the open field.This study iams at quantitation of these phenomena and finds out the diferences of 2.9% in beam quality index and of 4 mm in Dmax.We suggest the measurement of wedge field depth dose for the accurate dosimetry. |
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| Keywords: | wedge filter radiation quality dose distribution |
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