| Sheng Yinxiangzi,Wang Weiwei,Huang Zhijie,Zhao Jingfang,Chien Hsi,Kambiz Shahnazi.Measurement of CT Hounsfield Units and relative stopping powers conversion curve in proton and carbon ion therapy[J].Chinese Journal of Radiological Medicine and Protection,2017,37(9):667-670 |
| Measurement of CT Hounsfield Units and relative stopping powers conversion curve in proton and carbon ion therapy |
| Received:February 27, 2017 |
| DOI：10.3760/cma.j.issn.0254-5098.2017.09.005 |
| KeyWords:CT value Relative stopping power Ion therapy |
| FundProject:上海市青年科技英才扬帆计划（16YF1410700）。 |
| Author Name | Affiliation | E-mail | | Sheng Yinxiangzi | Department of Medical Physics, Shanghai Proton and Heavy Ion Center, Shanghai 201321, China | | | Wang Weiwei | Department of Medical Physics, Shanghai Proton and Heavy Ion Center, Shanghai 201321, China | | | Huang Zhijie | Department of Medical Physics, Shanghai Proton and Heavy Ion Center, Shanghai 201321, China | | | Zhao Jingfang | Department of Medical Physics, Shanghai Proton and Heavy Ion Center, Shanghai 201321, China | | | Chien Hsi | Department of Medical Physics, Shanghai Proton and Heavy Ion Center, Shanghai 201321, China | | | Kambiz Shahnazi | Department of Medical Physics, Shanghai Proton and Heavy Ion Center, Shanghai 201321, China | kambiz88224@yahoo.com |
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| Abstract:: |
| Objective To measure the CT Hounsfield Unit (HU) and relative stopping power (RSP) conversion curve.Methods In this study, the RSPs of 12 different tissue equivalent rods were measured with proton and carbon beam in the Shanghai Proton and Heavy Ion Center (SPHIC). The same tissue equivalent materials were scanned with CT scanner to acquire the HU.Results Conversion curve for the transformation of HU into RSP was generated for both proton and carbon ion beam. Differences between RSPs measured using proton and carbon beam were ≤0.64% except lung material.Conclusions A RSP versus HU conversion curve was generated for both protons and carbon ions. |
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