Optimization and Comparison of Depth-Dose Distribution of Heavy Ion Beam

MA Qiu-Feng; JIN Gen-Ming; LI Wen-Jian; LI Qiang; DANG Bing-Rong

Chinese Physics C> 2003, Vol. 27> Issue(10) : 932-935

Optimization and Comparison of Depth-Dose Distribution of Heavy Ion Beam

Institute of Modern Physics,CAS,Lanzhou 730000,China

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Abstract：
Heavy ion beams used for tumor therapy have some important advantages. Especially, the optimization of the depth-dose distribution of the heavy ion beam in a given focus of a tumor by using a Spread-Out Bragg Peak (SOBP) technique will greatly enhance the therapeutic effects for the tumor therapy. We adopted the simulated annealing algorithm to complete the optimization process for the high energy(-C 120MeV/u) heavy ion beam, which can be supplied by HIRFL, in a 30cm range of water and with 4 different step lengths to give a set of SOBP parameters such as the average dose, the input dose, the ratio of peak to plateau, the standard deviation, etc. The result shows that the selecting of 0.5-1mm as a step length is suitable.

References

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MA Qiu-Feng, JIN Gen-Ming, LI Wen-Jian, LI Qiang and DANG Bing-Rong. Optimization and Comparison of Depth-Dose Distribution of Heavy Ion Beam[J]. Chinese Physics C, 2003, 27(10): 932-935.

MA Qiu-Feng, JIN Gen-Ming, LI Wen-Jian, LI Qiang and DANG Bing-Rong. Optimization and Comparison of Depth-Dose Distribution of Heavy Ion Beam[J]. Chinese Physics C, 2003, 27(10): 932-935. shu

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Received: 2002-11-10
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

Optimization and Comparison of Depth-Dose Distribution of Heavy Ion Beam

Corresponding author: MA Qiu-Feng,

Institute of Modern Physics,CAS,Lanzhou 730000,China

Received Date: 2002-11-10
Accepted Date: 1900-01-01
Available Online: 2003-10-05

Abstract: Heavy ion beams used for tumor therapy have some important advantages. Especially, the optimization of the depth-dose distribution of the heavy ion beam in a given focus of a tumor by using a Spread-Out Bragg Peak (SOBP) technique will greatly enhance the therapeutic effects for the tumor therapy. We adopted the simulated annealing algorithm to complete the optimization process for the high energy(-C 120MeV/u) heavy ion beam, which can be supplied by HIRFL, in a 30cm range of water and with 4 different step lengths to give a set of SOBP parameters such as the average dose, the input dose, the ratio of peak to plateau, the standard deviation, etc. The result shows that the selecting of 0.5-1mm as a step length is suitable.