Theoretical research on time-space conversion method for measuring ultra-short electron pulse width

Wu Jianjun; Yuan Ximing; Zhao Baosheng; Tian Jinshou; Li Junke

Volume 25 Issue 02

Dec. 2012

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Article Navigation > High Power Laser and Particle Beams > 2013 > 25(02): 517-521

du guangxing, qian baoliang. Side focusing fields generated by offset-pole periodic cusped magnets[J]. High Power Laser and Particle Beams, 2011, 23.

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Wu Jianjun, Yuan Ximing, Zhao Baosheng, et al. Theoretical research on time-space conversion method for measuring ultra-short electron pulse width[J]. High Power Laser and Particle Beams, 2013, 25: 517-521.

du guangxing, qian baoliang. Side focusing fields generated by offset-pole periodic cusped magnets[J]. High Power Laser and Particle Beams, 2011, 23.

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Theoretical research on time-space conversion method for measuring ultra-short electron pulse width

1.
Jiangsu Research and Development Center of Application Technology for Wireless Sensing System,Wuxi 214153,China;
2.
Wuxi Institute of Commence,Wuxi 214153,China;
3.
Xi’an Institute of Optics and Precision Mechanics,Chinese Academy of Sciences,Xi’an 710068,China

Received Date: 2012-01-12
Rev Recd Date: 2012-09-10
Publish Date: 2013-02-10

Abstract

Abstract

The transmission characteristics of ultra-short electron beams of the ultra-fast electron guns in scanning state were analysed, and the deflection distance of the ultra-short electron beams passing the deflection-scan system was calculated. The results indicate that the initial voltage must be within the range of 700-1400 V to counterbalance the effect of the negative scan slope voltage, ensuring that the electron beams will pass the deflection-scan system and finally hit the phosphor screen of 30 mm in diameter, and the cooperative function of the initial voltage and the negative scan slope voltage is one of the two premises of the scan experiment. The other premise is the synchronization of the electrical and the optical signals. Following the discussion of the great difficulty caused by the first promise, an experimental system that can adjust the optical delay more effectively in the scan experiment was designed, which can facilitate the synchronization of the negative scan slope voltage and the ultra-fast electron pulse.
- ultra-fast electron diffraction,
- deflection-scan system,
- time-space conversion method,
- synchronization

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