Design and construction a full copper photocathode RF gun

Wang, X.J.; Batchelor, K.; Ben‐Zvi, I.; Lynch, D. C.; Sheehan, J.; Woodle, M.

doi:10.1109/pac.1993.309530

Cited by 7 publications

(3 citation statements)

References 2 publications

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“…An S-band 1.6 cell photo-cathode rf electron gun, evaluated by BNL/SLAC/UCLA in the 1990s [1][2][3] is now widely used for various research and large accelerator facilities as a photo injector. The controllability of the initial bunch shape and the high gradient of more than 100 MV/m in the rf gun cavity make it possible to produce a low emittance, short bunch, high brightness electron bunch with an electron gun alone.…”

Section: Introductionmentioning

confidence: 99%

Temporal profile measurement of an electron bunch with the two-cell rf deflecting cavity at Waseda University

Sakaue

Nishimura

Nishiyama

et al. 2015

Jpn. J. Appl. Phys.

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Our group at Waseda University developed an rf deflector system for measuring longitudinal. In this study we evaluated the temporal resolution of an S-band two-cell rf deflector cavity built into the system and performed a series of longitudinal profile measurements of electron bunch from an rf photocathode gun. The rf deflector system achieved a temporal resolution of 147.6 fs (rms), the value gave in close agreement with the design specification. We present our experimental results and discussion how the temporal profile was influenced by the rf electric field and space charge effect in the electron bunch from the rf photo cathode gun. Our results agreed with the results of a beam tracking simulation. The successful results of longitudinal profile measurements in this study confirm that our deflector system will be quite useful for improving an rf electron gun cavities.

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Section: Introductionmentioning

confidence: 99%

Temporal profile measurement of an electron bunch with the two-cell rf deflecting cavity at Waseda University

Sakaue

Nishimura

Nishiyama

et al. 2015

Jpn. J. Appl. Phys.

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“…It is smaller, and easier to get higher accelerating field. Therefore, an X-band (9.300 GHz) RF gun with a length about 3.0 cm, scaled from the 1.6 cell BNL S-band one [3] is simulated by PARMELA [4] in Section 2. A PITZ type coupler [5] is adopted in this X-band RF gun to avoid field asymmetries which will induce the emittance growth.…”

Section: Introductionmentioning

confidence: 99%

Ultra-low emittance X -band photocathode RF gun

Tang

Liu

2009

Chinese Phys. C

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In this paper, we present the simulation results of a 1.6 cell X-band photocathode RF gun for ultra-low emittance electron beams. It will work at 9.3 GHz. The emittance, bunch length, electron energy and energy spread at the gun exit are optimized at bunch charge of 1pC using PARMELA. Electron bunches with emittance about 0.1 mm · mrad and bunch length less than 100 fs can be obtained from this gun. A PITZ type coupler is adopted in this gun and an initial simulation by MAFIA is also given in this paper.

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“…A performance enhanced version of the traditional BNL/ATF 1.6-cell 2856-MHz photocathode rf gun system [2] will be used. These enhancements include symmetrization of the rf fields [3] and an upgrade to _____________________ * Work supported by U.S. Department of Energy, Office of Basic Energy Sciences, under Contract No.…”

Section: Rf Gun Designmentioning

confidence: 99%

The operation of the BNL/ATF GUN-IV photocathode RF gun at the Advanced Photon Source

Biedron

Goeppner²,

Lewellen³

et al.

Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366)

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At the Advanced Photon Source (APS) at Argonne National Laboratory (ANL), a free-electron laser (FEL) based on the self-amplified spontaneous emission (SASE) process is nearing completion. Recently, an rf photoinjector gun system was made available to the APS by Brookhaven National Laboratory/Accelerator Test Facility (BNL/ATF). It will be used to provide the highbrightness, low-emittance, and low-energy spread electron beam required by the SASE FEL theory. A Nd:Glass laser system, capable of producing a maximum of 500 µJ of UV in a 1-10 ps pulse at up to a 10-Hz repetition rate, serves as the photoinjector's drive laser. Here, the design, commissioning, and integration of this gun with the APS will be discussed.

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Design and construction a full copper photocathode RF gun

Cited by 7 publications

References 2 publications

Temporal profile measurement of an electron bunch with the two-cell rf deflecting cavity at Waseda University

Temporal profile measurement of an electron bunch with the two-cell rf deflecting cavity at Waseda University

Ultra-low emittance X -band photocathode RF gun

The operation of the BNL/ATF GUN-IV photocathode RF gun at the Advanced Photon Source

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