Evaluation of neutron radiation field in carbon ion therapy

Jun-Kui Xu; You-Wu Su; Wu-Yuan Li; Wei-Wei Yan; Xi-Meng Chen; Wang Mao; Cheng-Guo Pang

doi:10.1088/1674-1137/40/1/018201

Chinese Physics C> 2016, Vol. 40> Issue(1) : 018201 DOI: 10.1088/1674-1137/40/1/018201

Evaluation of neutron radiation field in carbon ion therapy

1.
School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
2.
Institute of Modern Physics, Chinese Academy of Science, Lanzhou 730000, China
3.
Institute of Modern Physics, Chinese Academy of Science, Lanzhou 730000, China
4.
School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China

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Abstract：
Carbon ions have significant advantages in tumor therapy because of their physical and biological properties. In view of the radiation protection, the safety of patients is the most important issue in therapy processes. Therefore, the effects of the secondary particles produced by the carbon ions in the tumor therapy should be carefully considered, especially for the neutrons. In the present work, the neutron radiation field induced by carbon ions was evaluated by using the FLUKA code. The simulated results of neutron energy spectra and neutron dose was found to be in good agreement with the experiment data. In addition, energy deposition of carbon ions and neutrons in tissue-like media was studied, it is found that the secondary neutron energy deposition is not expected to exceed 1% of the carbon ion energy deposition in a typical treatment.
- neutron radiation ,
- radiation protection ,
- energy deposition

References

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Jun-Kui Xu, You-Wu Su, Wu-Yuan Li, Wei-Wei Yan, Xi-Meng Chen, Wang Mao and Cheng-Guo Pang. Evaluation of neutron radiation field in carbon ion therapy[J]. Chinese Physics C, 2016, 40(1): 018201. doi: 10.1088/1674-1137/40/1/018201

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Received: 2015-03-18

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

Evaluation of neutron radiation field in carbon ion therapy

Corresponding author: Jun-Kui Xu,

1. School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
2. Institute of Modern Physics, Chinese Academy of Science, Lanzhou 730000, China
3. Institute of Modern Physics, Chinese Academy of Science, Lanzhou 730000, China
4. School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China

Received Date: 2015-03-18
Available Online: 2016-01-20

Abstract: Carbon ions have significant advantages in tumor therapy because of their physical and biological properties. In view of the radiation protection, the safety of patients is the most important issue in therapy processes. Therefore, the effects of the secondary particles produced by the carbon ions in the tumor therapy should be carefully considered, especially for the neutrons. In the present work, the neutron radiation field induced by carbon ions was evaluated by using the FLUKA code. The simulated results of neutron energy spectra and neutron dose was found to be in good agreement with the experiment data. In addition, energy deposition of carbon ions and neutrons in tissue-like media was studied, it is found that the secondary neutron energy deposition is not expected to exceed 1% of the carbon ion energy deposition in a typical treatment.