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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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.