Experimental Demonstration of Energy-Chirp Control in Relativistic Electron Bunches Using a Corrugated Pipe

Emma, P.; Venturini, M.; Bane, K.; Stupakov, Gennady; Kang, Heung-Sik; Chae, Min-Kyun; Hong, Juho; Min, Chang-Ki; Yang, Haeryong; Ha, Tae Kwon; Lee, W. W.; Park, C. D.; Park, S. J.; Ko, In Soo

doi:10.1103/physrevlett.112.034801

Cited by 88 publications

(61 citation statements)

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“…6 of Ref. [2] shows that our calculations for a 200 pC bunch are in better agreement with the experimental measurement than for a bunch of 150 pC. We also have good agreement for the focusing effect in the horizontal direction (Fig.…”

Section: Pal-itf Experimentssupporting

confidence: 69%

“…The single mode approach was also been used for calculating the wake fields in order to make a comparison with the experimental measurement of the corrugated dechirper in Pohang Accelerator Laboratory [2]. They found a 20% difference.…”

Section: Pal-itf Experimentsmentioning

confidence: 99%

“…The geometry of the corrugated structure can be found in Ref. [2]. It has the same period of 0.5 mm as the SLAC dechirper, but with a little bit thicker ridges.…”

Section: Pal-itf Experimentsmentioning

confidence: 99%

“…To understand the reason for the difference between the wake potential calculated by our code and the single mode approach used for wakefield calculations in Ref. [2], we carried out calculations of shorter bunches for this dechirper to derive the Green's function. We found that the difference in wake field potentials came from the difference of Green's functions at small distances.…”

Section: Pal-itf Experimentsmentioning

confidence: 99%

“…To our knowledge the word "dechirper" was first introduced in Ref. [2] where "the first experimental study was presented of a corrugated wall device that uses wake fields to remove a linear energy correlation in a relativistic electron beam." Of course different types of structures (dielectric, resistive) can be used as a dechirper, but we will analyze only corrugated wall structures in this publication.…”

Section: Introductionmentioning

confidence: 99%

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Wakefield potentials of corrugated structures

Novokhatski

2015

Phys. Rev. ST Accel. Beams

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A corrugated structure, which is used in "dechirper" devices, is usually a pipe or two plates with small corrugations (bumps) on the walls. There is a good single-mode description of the wake potentials excited by a relativistic bunch if the wave length of the mode is much longer than the distance between the bumps in the pipe. However, ultrashort bunches, which are now used in free electron lasers, excite much higher frequency fields and the corresponding wake potentials will be very different from the single-mode description. We have made analyses of these wake potentials based on a numerical solution of Maxwell's equations. It was confirmed that the behavior of the wakefields of ultrashort bunches in corrugated structures is not much different from the fields excited usually in accelerating structures where the wake potentials are described by the exponential function. For a practical application we present results for the SLAC "dechirper." We also carried out calculations for a similar device, that was installed and measured at the Pohang Accelerator Laboratory, Korea. We find very good agreement with the experimental results.

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Section: Pal-itf Experimentssupporting

confidence: 69%

Section: Pal-itf Experimentsmentioning

confidence: 99%

“…The geometry of the corrugated structure can be found in Ref. [2]. It has the same period of 0.5 mm as the SLAC dechirper, but with a little bit thicker ridges.…”

Section: Pal-itf Experimentsmentioning

confidence: 99%

Section: Pal-itf Experimentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Wakefield potentials of corrugated structures

Novokhatski

2015

Phys. Rev. ST Accel. Beams

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Free‐electron Lasers

2019

An Introduction to Synchrotron Radiation

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X-Ray Sources at Large-Scale Facilities

Willmott

2021

Springer Proceedings in Physics

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High-brilliance X-ray sources are powerful probes to investigate the properties of matter down to the sub-angstrom scale and on time scales that can extend below a femtosecond. In this chapter, an introductory overview of the physics behind storage ring-based synchrotrons and linear accelerator-based X-ray free-electron lasers is presented, while the properties of the radiation they produce are explained.

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Experimental Demonstration of Energy-Chirp Control in Relativistic Electron Bunches Using a Corrugated Pipe

Cited by 88 publications

References 5 publications

Wakefield potentials of corrugated structures

Wakefield potentials of corrugated structures

Free‐electron Lasers

X-Ray Sources at Large-Scale Facilities

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