Physical design of a 10 MeV LINAC for polymer radiation processing

FENG Guang-Yao; PEI Yuan-Ji; WANG Lin; ZHANG Shan-Cai; WU Cong-Feng; JIN Kai; LI Wei-Min

doi:10.1088/1674-1137/33/S2/035

Chinese Physics C> 2009, Vol. 33> Issue(S2) : 135-138 DOI: 10.1088/1674-1137/33/S2/035

Physical design of a 10 MeV LINAC for polymer radiation processing

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Abstract：
In China, polymer radiation processing has become one of the most important
processing industries. The radiation processing source may be an electron beam accelerator or a radioactive source. Physical design of an electron beam facility applied for radiation crosslinking is introduced in this paper because of it's much higher dose rate and efficiency. Main part of this facility is a 10 MeV travelling wave electron linac with constant impedance accelerating structure. A start to end simulation concerning the linac is reported in this paper. The codes Opera-3d, Poisson-superfish and Parmela are used to describe electromagnetic elements of the accelerator and track particle distribution from the cathode to the end of the linac. After beam dynamic optimization, wave phase velocities in the structure have been chosen to be 0.56, 0.9 and 0.999 respectively. Physical parameters about the main elements such as DC electron gun, iris-loaded periodic structure, solenoids, etc, are presented. Simulation results proves that it can satisfy the industrial requirement. The linac is under construction. Some components have been finished. Measurements proved that they are in a good agreement with the design values.

References

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. FENG Guang-Yao, PEI Yuan-Ji, SUN Hong-Bing. Designof An Electron Linear Accelerator Applied for Sterilizing Anthrax-bacilus in Mails. HEP NP, 2006, 30(Supp.I):1202. Thomas P. Wangler. Principles of RF Linear Accelerators,Published in Canada, 1998. 78-80, 218-2193. FENG Guang-Yao, PEI Yuan-Ji, JIANG Dao-Man. Designof an Electron Gun in Linac for Food Irradicidation. Nu-clear Techniques, 2006, 29(9): 650-6544. Editorial Committee of Vacuum Tube Design Manual. Se-ries of high pulse electron gun. Beijing: Defence Industry Press, 1979. 123-1255. FENG Guang-Yao, WANG Lin, WU Cong-Feng et al. Base-line Design of Hls Linac Upgrade. EPAC2008, 2019-20216. YOUNG L M, Billen J H. Parmela, LA-UR-96-1835, Rev.,2005

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FENG Guang-Yao, PEI Yuan-Ji, WANG Lin, ZHANG Shan-Cai, WU Cong-Feng, JIN Kai and LI Wei-Min. Physical design of a 10 MeV LINAC for polymer radiation processing[J]. Chinese Physics C, 2009, 33(S2): 135-138. doi: 10.1088/1674-1137/33/S2/035

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Received: 2009-01-05
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Physical design of a 10 MeV LINAC for polymer radiation processing

Corresponding author: FENG Guang-Yao,

Received Date: 2009-01-05

Accepted Date: 1900-01-01

Available Online: 2009-01-08

Abstract:

In China, polymer radiation processing has become one of the most important
processing industries. The radiation processing source may be an electron beam accelerator or a radioactive source. Physical design of an electron beam facility applied for radiation crosslinking is introduced in this paper because of it's much higher dose rate and efficiency. Main part of this facility is a 10 MeV travelling wave electron linac with constant impedance accelerating structure. A start to end simulation concerning the linac is reported in this paper. The codes Opera-3d, Poisson-superfish and Parmela are used to describe electromagnetic elements of the accelerator and track particle distribution from the cathode to the end of the linac. After beam dynamic optimization, wave phase velocities in the structure have been chosen to be 0.56, 0.9 and 0.999 respectively. Physical parameters about the main elements such as DC electron gun, iris-loaded periodic structure, solenoids, etc, are presented. Simulation results proves that it can satisfy the industrial requirement. The linac is under construction. Some components have been finished. Measurements proved that they are in a good agreement with the design values.

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Physical design of a 10 MeV LINAC for polymer radiation processing

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通讯作者: 陈斌, bchen63@163.com

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