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The Distortion of Energy Deposit Distribution of (12)~C Ions in Water

The Distortion of Energy Deposit Distribution of (12)~C Ions in Water
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摘要 The transport process of 12C ions in water was studied with SRIM code and Geant4 toolkit. The SRIM results indicate that the transverse diffusion of 12C ion beam causes distortion of energy deposit along the beam direction. The distortion becomes more notable as the transverse diffusion increases. The simulation results of Geant4 indicate that the influence of secondary fragments on energy deposit distribution would be the main factor causing the distortion in higher energy range. In the region adjacent to the beam line where the contribution from 12C ions domi- nates, the contributions from secondary fragments are ignorable. The further from the beam axis the region locates, the larger the contributions from secondary fragments, until the contributions from secondary fragments are ignorable. The further from the beam axis the region locates, the larger the contributions from secondary fragments, until the contributions from secondary frag- ments exceed that of 12C. Among all the secondary fragments, the contributions of H, He and B ions are mostly notable. It is also found that some positron-emitting secondary fragments could be very useful for position emitting tomography (PET). The transport process of 12C ions in water was studied with SRIM code and Geant4 toolkit. The SRIM results indicate that the transverse diffusion of 12C ion beam causes distortion of energy deposit along the beam direction. The distortion becomes more notable as the transverse diffusion increases. The simulation results of Geant4 indicate that the influence of secondary fragments on energy deposit distribution would be the main factor causing the distortion in higher energy range. In the region adjacent to the beam line where the contribution from 12C ions domi- nates, the contributions from secondary fragments are ignorable. The further from the beam axis the region locates, the larger the contributions from secondary fragments, until the contributions from secondary fragments are ignorable. The further from the beam axis the region locates, the larger the contributions from secondary fragments, until the contributions from secondary frag- ments exceed that of 12C. Among all the secondary fragments, the contributions of H, He and B ions are mostly notable. It is also found that some positron-emitting secondary fragments could be very useful for position emitting tomography (PET).
出处 《Plasma Science and Technology》 SCIE EI CAS CSCD 2012年第7期665-669,共5页 等离子体科学和技术(英文版)
基金 supported by the Fundamental Research Funds for the Central Universities of China(HEUCF101501) the Fundamental Research Funds of Harbin Engineering University of China(002150260713)
关键词 12C ions simulation secondary fragments energy deposit distribution 12C ions, simulation, secondary fragments, energy deposit distribution
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  • 1Li Qiang, Wei Zengquan. 1999, Nuclear Physics Re- view, 16:216 (in Chinese).
  • 2Wilson R R. 1946, Radiology, 47:487.
  • 3Chen G T, Castro J R, Quivey J M. 1981, Annu Rev. Biophys. Bioeng., 10:499.
  • 4Jakel O, Schulz-Ertner D, Karger C P, et al. 2003, Technol. Cancer Res. Treat., 2:377.
  • 5Weyrather W K, Kraft G. 2004, Radiotherapy and On- cology, 73:S161.
  • 6Tsujii H, Mizoe J, Kamada T, et al. 2004, Oncology, 73:S41.
  • 7Igor Pshenichnov, Igor Mishustin, Walter Greiner, et al. 2006, Phys. Med. Biol., 51:6099.
  • 8Kurosawa T, Nakao N, Nakamura T, et al. 1999, Nucl. Sci. Eng., 132:30.
  • 9Zhao Qiang, 'Zhang Fengshou, Wang Zhiping, et al. 2009, Chin. Phys. Lett., 26:092501.
  • 10Gunzert-Marx K, lwase H, Schardt D, et al. 2008, New Journal of Physics, 10:075003.

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