RF characterization of a tunable, high-gradient, X-band photoinjector

Hartemann, F. V.; Landahl, Eric C.; Gibson, D. J.; Troha, A. L.; Meter, James R. van; Baldis, H. A.; Luhmann, Neville C.; Ho, C. H.; Yang, T. T.; Horny, M.J.; Hwang, Jae-Yeol; Lau, W.K.; Yeh, Meng-Shu

doi:10.1109/27.887747

Cited by 2 publications

References 14 publications

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The fabrication and characterization of an S-band RF-gun cavity

Yang

Hsu

et al. 2007

2007 IEEE Particle Accelerator Conference (PAC)

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A single cell rf-gun cavity is designed and fabricated for the purpose of examining the feasibility of installing a thermionic rf-gun at NSRRC instead of a photocathode rfgun considered previously. The operating frequency of the rf-gun cavity is set at 2856 MHz in order to utilize the available XK-5 klystron and linac. The fabricated parts of the OFHC copper cavity are brazed together in-house and then the cavity is characterized by rf measurement. It shows that the cavity gives very good character in terms of high quality factor, relaxed tuning range, adequate coupling coefficient, and reasonable reproducibility. The properties of the cavity are further explored by measuring the field profile and its response to an rf pulse in which the filling time is deduced. The measurement results of this brazed cavity are described and summarized in this report.

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The fabrication and characterization of an S-band RF-gun cavity

Yang

Hsu

et al. 2007

2007 IEEE Particle Accelerator Conference (PAC)

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Development of Radio Frequency Guns at NSRRC

Lau

Chang

Hsu

et al. 2007

Int. J. Mod. Phys. B

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Technologies for rf gun-based high brightness injector are being developed at NSRRC. An X-band photo-cathode rf gun has been constructed and operated successfully for coherent electromagnetic radiation research at U.C. Davis. Recent measurement of a 1.5-2 MeV beam from this gun with bunch charge at 25 pC showed that it has a normalized emittance at 1.65 mm-mrad. As a successive project, a 100 MeV electron beam injector system with a thermionic rf gun and a photo-cathode rf gun that share the same 2998 MHz rf linac is being designed as the pre-injector of the TPS (Taiwan Photon Source) booster as well as beam injector for novel light source research. For evaluation purposes, a prototype thermionic rf gun system is now under construction at NSRRC with the existing 2856 MHz high power microwave system as the driver source.

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RF characterization of a tunable, high-gradient, X-band photoinjector

Cited by 2 publications

References 14 publications

The fabrication and characterization of an S-band RF-gun cavity

The fabrication and characterization of an S-band RF-gun cavity

Development of Radio Frequency Guns at NSRRC

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