Development of self-correcting scanning system for DG-type electron accelerators

Li Zhongping; Cao Shuchun; Zhang Zimin; Wang Bin; Yang Chunming

doi:10.3788/HPLPB20132502.0481

Volume 25 Issue 02

Dec. 2012

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Article Navigation > High Power Laser and Particle Beams > 2013 > 25(02): 481-484

Chen Han, Yang Hanwu, Zhang Zicheng, et al. Transverse capacitance coupling UV pre-ionization switch[J]. High Power Laser and Particle Beams, 2013, 25: 2035-2039. doi: 10.3788/HPLPB20132508.2035

Citation:

Li Zhongping, Cao Shuchun, et al. Development of self-correcting scanning system for DG-type electron accelerators[J]. High Power Laser and Particle Beams, 2013, 25: 481-484. doi: 10.3788/HPLPB20132502.0481

Chen Han, Yang Hanwu, Zhang Zicheng, et al. Transverse capacitance coupling UV pre-ionization switch[J]. High Power Laser and Particle Beams, 2013, 25: 2035-2039. doi: 10.3788/HPLPB20132508.2035

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Development of self-correcting scanning system for DG-type electron accelerators

doi: 10.3788/HPLPB20132502.0481

1.
Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China;
2.
Research Center of Particle Beams Radiation Engineering Technology,Lanzhou 730000,China

Received Date: 2012-05-03
Rev Recd Date: 2012-07-22
Publish Date: 2013-02-10

Abstract

Abstract

To improve the scanning uniformity and beam extraction efficiency, and to solve the problem of beam central deviation of DG-type electron accelerators, a scanning system has been developed, whose scanning coil and self-correcting coil are set in the same magnetic core. The system can scan along the X and Y axes and adjust the beam to the centre of the extraction window automatically. This paper introduces the parameter-selection basis of scanning magnet and scanning power-supply. We expound the design principle of the shaping circuit of the triangle wave current based square wave voltage. Moreover, the interlock signal from the scanning system is used to ensure the accelerators operation safety and stabilization. It is proved that the scanning system completely achieves the industrialization demand and the scanning uniformity meets the industrial irradiation requirements by the fact that the accelerator with the steady self-correcting scanning system is successfully used in practice.
- electron accelerator,
- scanning power-supply,
- scanning magnet,
- self-correcting,
- scanning uniformity

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