31 July 2016 to 5 August 2016
Gaylord Hotel and Conference Center
US/Eastern timezone

Recent progress on laser plasma physics and advanced accelerator research at Tsinghua University: experiment and simulation

2 Aug 2016, 11:10
20m
Woodrow Wilson CD (Gaylord Hotel)

Woodrow Wilson CD

Gaylord Hotel

Oral Working Group 1 WG1

Speaker

Prof. Chih-Hao Pai (Department of Engineering Physics, Tsinghua University)

Abstract

In this talk, recent progress on laser plasma physics and advanced accelerator technology at Tsinghua University and National Central University will be presented, including experiment part and simulation part.

Summary

Recent progress on laser plasma physics and advanced accelerator technology at L2PA (laboratory of laser plasma physics and advanced accelerator technology), a joint effort of Tsinghua University and National Central University (NCU), will be presented. The main research theme of L2PA focuses on compact high-quality laser wakefield accelerator and its derivative light sources. Two major facilities are utilized for the presented research work. At Tsinghua, a unique facility has been upgraded recently [1], which combines an ultrafast 40TW laser with a synchronized 45MeV high brightness linac. At NCU, a 100TW multi-pulses laser system and two joint experimental platforms have been optimized for laser plasma acceleration [2].

On experiment part, high-quality electron beams have been obtained at Tsinghua platform and NCU platforms. With such high-quality electron beams, various applications based on ultrafast electron pulses have been developed. At the same time, proof-of-principle experiments for beam-driven plasma accelerator is underway.

On theory and simulation part, several ideas on how to obtain high quality electron beams with extremely high brightness through wakefield acceleration will be presented. A theoretical model on the phase space dynamics of ionization injection scheme [3] has been derived, and phase space matching for staging accelerator components using longitudinally tailored plasma profiles is proposed [4]. Besides, some new schemes for generation of ultra-bright, low energy spread electron beams [5-7] have also been proposed.

References

  1. J. F. Hua et al., Chin. Phys. C 39, 017001 (2015).
  2. T.-S. Hung et al., Appl. Phys. B 117, 1189 (2014).
  3. X. L. Xu et al., Phys. Rev. Lett. 112, 035003 (2014)
  4. X. L. Xu et al., Phys. Rev. Lett. 116, 124801 (2016)
  5. F. Li et al., Phys. Rev. Lett. 111, 015003 (2013)
  6. F. Li, et al., Plasma Phys. Control. Fusion, 58, 034004 (2016).
  7. Y. Wan, et al., Plasma Phys. Control. Fusion 58, 034015 (2016).
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Primary author

Prof. Chih-Hao Pai (Department of Engineering Physics, Tsinghua University)

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