Bunch length manipulation in a diffraction-limited storage ring

TIAN Sai-Ke; JIAO Yi; WANG Jiu-Qing

doi:10.1088/1674-1137/39/12/127001

Chinese Physics C> 2015, Vol. 39> Issue(12) : 127001 DOI: 10.1088/1674-1137/39/12/127001

Bunch length manipulation in a diffraction-limited storage ring

1.
Key Laboratory of Particle Acceleration Physics and Technology, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China

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Abstract：
In an electron storage ring, the bunch length can be increased or decreased by using harmonic cavities. Taking the High Energy Photon Source as an example, we test the bunch length manipulation with harmonic cavities in a diffraction-limited storage ring (DLSR). The most important collective effects in a DLSR, intra-beam scattering and Touschek effects, are evaluated for different bunch-length patterns. Our study shows that it is feasible to produce long and short bunches simultaneously in a DLSR, without causing severe emittance growth and reduction in lifetime.
- high harmonic cavity ,
- diffraction-limited storage ring ,
- intra-beam scattering ,
- Touschek effects

References

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TIAN Sai-Ke, JIAO Yi and WANG Jiu-Qing. Bunch length manipulation in a diffraction-limited storage ring[J]. Chinese Physics C, 2015, 39(12): 127001. doi: 10.1088/1674-1137/39/12/127001

TIAN Sai-Ke, JIAO Yi and WANG Jiu-Qing. Bunch length manipulation in a diffraction-limited storage ring[J]. Chinese Physics C, 2015, 39(12): 127001. doi: 10.1088/1674-1137/39/12/127001 shu

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Received: 2015-02-16
Revised: 2015-07-15

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Supported by National Natural Science Foundation of China (11475202, 11405187) and Youth Innovation Promotion Association of Chinese Academy of Sciences (2015009)

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

Bunch length manipulation in a diffraction-limited storage ring

1. Key Laboratory of Particle Acceleration Physics and Technology, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2015-02-16
Accepted Date: 2015-07-15
Available Online: 2015-12-20

Fund Project: Supported by National Natural Science Foundation of China (11475202, 11405187) and Youth Innovation Promotion Association of Chinese Academy of Sciences (2015009)

Abstract: In an electron storage ring, the bunch length can be increased or decreased by using harmonic cavities. Taking the High Energy Photon Source as an example, we test the bunch length manipulation with harmonic cavities in a diffraction-limited storage ring (DLSR). The most important collective effects in a DLSR, intra-beam scattering and Touschek effects, are evaluated for different bunch-length patterns. Our study shows that it is feasible to produce long and short bunches simultaneously in a DLSR, without causing severe emittance growth and reduction in lifetime.