Investigation and Application of Heavy lon Bragg Peak

Li Qiang; Wei Zengquan; Dang Bingrong; Li Wenjian

Chinese Physics C> 1997, Vol. 21> Issue(6) : 571-575

Investigation and Application of Heavy lon Bragg Peak

Institute of Modem Physics,the Chinese Academy of Sciences,Lanzhou 730000

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Abstract：
Relative ionizations(Bragg curves)of 30MeV/u and 25MeV/u ⁴⁰Ar ion beams supplied by HIRFL through degraders of Mylar films with different thicknesses were measured respectively.The experimental results were compared with calculations by TRIM88 code.It is found that the experimental results are in good agreement with the calculated ones when the ⁴⁰Ar ions penetrate a smaller distance from target surface.Furthermore,a heavy ion radiotherapy planning for shallow-seated and small tumor is put forward according to the calculated relationship between intermediate energy heavy ion penetration depth in water and relative ionization.
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[1] 卫增泉，核物理动态，11（1994）44.
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Li Qiang, Wei Zengquan, Dang Bingrong and Li Wenjian. Investigation and Application of Heavy lon Bragg Peak[J]. Chinese Physics C, 1997, 21(6): 571-575.

Li Qiang, Wei Zengquan, Dang Bingrong and Li Wenjian. Investigation and Application of Heavy lon Bragg Peak[J]. Chinese Physics C, 1997, 21(6): 571-575. shu

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Investigation and Application of Heavy lon Bragg Peak

Corresponding author: Li Qiang,

Institute of Modem Physics,the Chinese Academy of Sciences,Lanzhou 730000

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1997-06-05

Abstract: Relative ionizations(Bragg curves)of 30MeV/u and 25MeV/u ⁴⁰Ar ion beams supplied by HIRFL through degraders of Mylar films with different thicknesses were measured respectively.The experimental results were compared with calculations by TRIM88 code.It is found that the experimental results are in good agreement with the calculated ones when the ⁴⁰Ar ions penetrate a smaller distance from target surface.Furthermore,a heavy ion radiotherapy planning for shallow-seated and small tumor is put forward according to the calculated relationship between intermediate energy heavy ion penetration depth in water and relative ionization.