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Chinese Physics C> 2017, Vol. 41> Issue(6) : 068201 DOI: 10.1088/1674-1137/41/6/068201

Study of neutron dose equivalent at the HIRFL deep tumor therapy terminal

  • 1.

     Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China

  • 2.

     School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China

  • 3.

      Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China

  • 4.

      School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China

  • The secondary neutron fields at the deep tumor therapy terminal at HIRFL (Heavy Ion Research Facility in Lanzhou) were investigated. The distributions of neutron ambient dose equivalent were measured with a FHT762 Wendi-II neutron ambient dose equivalent meter as 12C ions with energies of 165, 207, 270, and 350 MeV/u were bombarded on thick tissue-like targets. The thickness of targets used in the experiments was larger than the range of the carbon ions. The neutron spectra and dose equivalent were simulated by using FLUKA code, and the results agree well with the experimental data. The experiment results showed that the neutron dose produced by fragmentation reactions in tissue can be neglected in carbon-ion therapy, even considering their enhanced biological effectiveness. These results are also valuable for radiation protection, especially in the shielding design of high energy heavy ion medical machines.
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  • References

    [1] C. Sunil, A. Saxena, R. K. Choudhury et al, Nuclear Instruments and Methods in Physics Research A, 534: 518-530 (2004)
    [2] C. Sunil, A. A. Shanbhag, M. Nandy et al, Raddiation Measurements, 47: 1035-1043 (2012)
    [3] M. Nandy, P. K. Sarkar, T. Sanami et al, Raddiation Measurements, 45: 1276-1280 (2012)
    [4] Haluk Yucel, Ibrahim Cobanbas, Asuman Kolbas et al, Nuclear Engineering and Technology, 48(2): 525-532 (2016)
    [5] Rebecca M. Howell, Eric A. Burgett, Daniel Isaacs BS et al, International Journal of Radiation Oncology Biology Physics, 95(1): 249-257 (2015)
    [6] A. Saeed, Sherif S. Nafee, Salem A. Shaheen et al, Applied Mathematics and Computation, 274: 604-610 (2016)
    [7] T. Nakamura, the 4th International meetings of SATIF, 17-18: 37-56 (1998)
    [8] T. Nakamura, N. Nakao, T. Kurosawa et al, Nuclear Science and Engineering, 132(1): 30-57 (1999)
    [9] Guishegn Li, Tianmei Zhang, Zongwei Li et al, Nuclear Instruments and Methods in Physics Research A, 431: 194-200 (1999)
    [10] Youwu Su, Zongqiang Li, Wuyuan Li et al, Chin. Phys. C, 34(5): 548-550 (2010)
    [11] I. O. Andersson, J. A. Braun, Proceedings of the IAEA Symposium on neutron dosimetry (Vienna, 1963) 2: 87-95 (1963)
    [12] C. Birattari, A. Ferrari, C. Nuccetelli et al. Nuclear Instruments and Methods in Physics Research A, 297(1-2): 250-257 (1990)
    [13] V. Mares, A. V. Sannikov, H. Schraube, Nuclear Instruments and Methods in Physics Research A, 476: 341-346 (2002)
    [14] C. Birattari, Adolfo Esposito, Alfredo Ferrari et al, Rad. Prot. Dosim., 76(3): 135-148 (1998)
    [15] Junkui Xu, Youwu Su, Wuyuan Li et al, Chin. Phys. C, 40(1): 018201-1-018201-4 (2016)
    [16] D. Schardt, T. Elsasser, D. Schulz-Ertner. Reviews of Modern Physics, 82(1): 383-425 (2010)
    [17] Dazhao Ding, Neutron physics, The first edition (Beijing China:Atomic Energy Press, 2001), p.243 (in Chinese) (2001)
    [18] International Commission on Radiological Protection, Conversion coefficients for use in radiological protection against external radiation, first edition (Beijing China:Atomic Energy Press, 1998)P.94 (in Chinese) (1998)

  • References

    [1] C. Sunil, A. Saxena, R. K. Choudhury et al, Nuclear Instruments and Methods in Physics Research A, 534: 518-530 (2004)
    [2] C. Sunil, A. A. Shanbhag, M. Nandy et al, Raddiation Measurements, 47: 1035-1043 (2012)
    [3] M. Nandy, P. K. Sarkar, T. Sanami et al, Raddiation Measurements, 45: 1276-1280 (2012)
    [4] Haluk Yucel, Ibrahim Cobanbas, Asuman Kolbas et al, Nuclear Engineering and Technology, 48(2): 525-532 (2016)
    [5] Rebecca M. Howell, Eric A. Burgett, Daniel Isaacs BS et al, International Journal of Radiation Oncology Biology Physics, 95(1): 249-257 (2015)
    [6] A. Saeed, Sherif S. Nafee, Salem A. Shaheen et al, Applied Mathematics and Computation, 274: 604-610 (2016)
    [7] T. Nakamura, the 4th International meetings of SATIF, 17-18: 37-56 (1998)
    [8] T. Nakamura, N. Nakao, T. Kurosawa et al, Nuclear Science and Engineering, 132(1): 30-57 (1999)
    [9] Guishegn Li, Tianmei Zhang, Zongwei Li et al, Nuclear Instruments and Methods in Physics Research A, 431: 194-200 (1999)
    [10] Youwu Su, Zongqiang Li, Wuyuan Li et al, Chin. Phys. C, 34(5): 548-550 (2010)
    [11] I. O. Andersson, J. A. Braun, Proceedings of the IAEA Symposium on neutron dosimetry (Vienna, 1963) 2: 87-95 (1963)
    [12] C. Birattari, A. Ferrari, C. Nuccetelli et al. Nuclear Instruments and Methods in Physics Research A, 297(1-2): 250-257 (1990)
    [13] V. Mares, A. V. Sannikov, H. Schraube, Nuclear Instruments and Methods in Physics Research A, 476: 341-346 (2002)
    [14] C. Birattari, Adolfo Esposito, Alfredo Ferrari et al, Rad. Prot. Dosim., 76(3): 135-148 (1998)
    [15] Junkui Xu, Youwu Su, Wuyuan Li et al, Chin. Phys. C, 40(1): 018201-1-018201-4 (2016)
    [16] D. Schardt, T. Elsasser, D. Schulz-Ertner. Reviews of Modern Physics, 82(1): 383-425 (2010)
    [17] Dazhao Ding, Neutron physics, The first edition (Beijing China:Atomic Energy Press, 2001), p.243 (in Chinese) (2001)
    [18] International Commission on Radiological Protection, Conversion coefficients for use in radiological protection against external radiation, first edition (Beijing China:Atomic Energy Press, 1998)P.94 (in Chinese) (1998)

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Cited by

1. Huang, S.-C., Zhang, H., Bai, K. et al. Monte Carlo study of the neutron ambient dose equivalent at the heavy ion medical machine in Wuwei[J]. Nuclear Science and Techniques, 2022, 33(9): 119. doi: 10.1007/s41365-022-01093-z
Get Citation
Jun-Kui Xu, You-Wu Su, Wu-Yuan Li, Wei-Wei Yan, Zong-Qiang Li, Wang Mao, Cheng-Guo Pang and Chong Xu. Study of neutron dose equivalent at the HIRFL deep tumor therapy terminal[J]. Chinese Physics C, 2017, 41(6): 068201. doi: 10.1088/1674-1137/41/6/068201
Jun-Kui Xu, You-Wu Su, Wu-Yuan Li, Wei-Wei Yan, Zong-Qiang Li, Wang Mao, Cheng-Guo Pang and Chong Xu. Study of neutron dose equivalent at the HIRFL deep tumor therapy terminal[J]. Chinese Physics C, 2017, 41(6): 068201.  doi: 10.1088/1674-1137/41/6/068201 shu
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Received: 2016-07-12
Revised: 2016-12-04
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Study of neutron dose equivalent at the HIRFL deep tumor therapy terminal

    Corresponding author: Jun-Kui Xu,
    Corresponding author: You-Wu Su,
  • 1. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
  • 2. School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
  • 3.  Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
  • 4.  School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
  • Received Date: 2016-07-12
  • Accepted Date: 2016-12-04
  • Available Online: 2017-06-05

Abstract: The secondary neutron fields at the deep tumor therapy terminal at HIRFL (Heavy Ion Research Facility in Lanzhou) were investigated. The distributions of neutron ambient dose equivalent were measured with a FHT762 Wendi-II neutron ambient dose equivalent meter as 12C ions with energies of 165, 207, 270, and 350 MeV/u were bombarded on thick tissue-like targets. The thickness of targets used in the experiments was larger than the range of the carbon ions. The neutron spectra and dose equivalent were simulated by using FLUKA code, and the results agree well with the experimental data. The experiment results showed that the neutron dose produced by fragmentation reactions in tissue can be neglected in carbon-ion therapy, even considering their enhanced biological effectiveness. These results are also valuable for radiation protection, especially in the shielding design of high energy heavy ion medical machines.

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