Three-dimensional particle-in-cell with Monte Carlo collision simulation of the electron energy distribution function in the multi-cusp ion source for proton therapy

YANG Chao; WU Xiao-Bing; LIU Da-Gang

doi:10.1088/1674-1137/36/10/018

Chinese Physics C> 2012, Vol. 36> Issue(10) : 1013-1018 DOI: 10.1088/1674-1137/36/10/018

Three-dimensional particle-in-cell with Monte Carlo collision simulation of the electron energy distribution function in the multi-cusp ion source for proton therapy

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Abstract：
For optimization and accurate prediction of the amount of proton production in the multi-cusp ion source, analysis of the electron energy distribution function (EEDF) is necessary. A three dimensional particle-in-cell with Monte Carlo collision (PIC-MCC) code based on the CHIPIC software platform are developed. The code is applied to the multi-cusp proton source. The results show that there are two energy distributions in the discharge chamber, and a spatial non-uniformity of electron density due to the B×▽B drift of the top permanent magnets is observed.

References

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FANG S X, GUAN X L, TANG J Y. Chinese Physics C (HEP NP), 2010, 34(3): 383-388[2] WU X B, HUANG T, OUYANG H F et al. Chinese Physics C (HEP NP), 2010, 34(12): 1900-1904[3] LIU D G, ZHU D J, ZHOU J et al. High Power Laser and Particle Beams, 2006, 18(1): 110-114 (in Chinese)[4] WANG X M, YANG C, LIU D G et al. High Power Laser and Particle Beams, 2011, 23(10): 2767-2772 (in Chinese)[5] Verboncoeur J P. Plasma Physics and Controlled Fusion, 2005, 47(5A): A231-A260[6] Birdsall C K, Langdon A B. Plasma Physics via Computer Simulation. New York: McGraw-Hill, 1985[7] Terasaki R, Hatayama A, Shibata T et al. AIP Conference Proceedings, 2011, 1390(1): 22-29[8] Takizuka T, Abe H. Journal of Computational Physics, 1977, 25(3): 205-219[9] Nanbu K. IEEE Transactions on Plasma Science, 2000, 28(3): 971-990[10] GOU X F, YANG Y, ZHEN X J. Applied Mathematics and Mechanics, 2004, 25(3): 271-278 (in Chinese)[11] Katoh K, Takado N, Hatayama A et al. Review of Scientific Instruments, 2006, 77(3): 03A535-533

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YANG Chao, WU Xiao-Bing and LIU Da-Gang. Three-dimensional particle-in-cell with Monte Carlo collision simulation of the electron energy distribution function in the multi-cusp ion source for proton therapy[J]. Chinese Physics C, 2012, 36(10): 1013-1018. doi: 10.1088/1674-1137/36/10/018

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Received: 2012-01-05
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

Three-dimensional particle-in-cell with Monte Carlo collision simulation of the electron energy distribution function in the multi-cusp ion source for proton therapy

Received Date: 2012-01-05
Accepted Date: 1900-01-01
Available Online: 2012-10-05

Abstract: For optimization and accurate prediction of the amount of proton production in the multi-cusp ion source, analysis of the electron energy distribution function (EEDF) is necessary. A three dimensional particle-in-cell with Monte Carlo collision (PIC-MCC) code based on the CHIPIC software platform are developed. The code is applied to the multi-cusp proton source. The results show that there are two energy distributions in the discharge chamber, and a spatial non-uniformity of electron density due to the B×▽B drift of the top permanent magnets is observed.