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2015•Unpublished venueRequires access

PERFOMANCE TEST OF RF PHOTO-CATHODE GUN AT THE PAL*

Jangho Park, Sungju Park, Yong-woon Parc, Changbum Kim, Jung Yun Huang, In Soo Ko

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Abstract

A photo-cathode (PC) RF gun with 1.6 cell cavity is installed for injector development of the PAL-XFEL and a fs-FIR (Femto-second Far Infrared Radiation) facility being built at the Pohang Accelerator Laboratory (PAL). The short, intense, and low emittance electron beams are produced by the RF PC gun. Performance test of the gun is done including the measurement of RF characterizations such as a resonant frequency and a mode separation. The diagnostics of the beam parameters such as phase, charge, and energy, and emittance are performed. In this article, we present the results of measurement on the RF characterizations and the beam parameter diagnostics of the PC RF gun at the PAL.

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What this paper is about

A photo-cathode (PC) RF gun with 1.6 cell cavity is installed for injector development of the PAL-XFEL and a fs-FIR (Femto-second Far Infrared Radiation) facility being built at the Pohang Accelerator Laboratory (PAL). The short, intense, and low emittance electron beams are produced by the RF PC gun. Performance test of the gun is done including the measurement of RF characterizations such as a resonant frequency and a mode separation. The diagnostics of the beam parameters such as phase, charge, and energy, and emittance are performed. In this article, we present the results of measurement on the RF characterizations and the beam parameter diagnostics of the PC RF gun at the PAL.

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Available abstract

A photo-cathode (PC) RF gun with 1.6 cell cavity is installed for injector development of the PAL-XFEL and a fs-FIR (Femto-second Far Infrared Radiation) facility being built at the Pohang Accelerator Laboratory (PAL). The short, intense, and low emittance electron beams are produced by the RF PC gun. Performance test of the gun is done including the measurement of RF characterizations such as a resonant frequency and a mode separation. The diagnostics of the beam parameters such as phase, charge, and energy, and emittance are performed. In this article, we present the results of measurement on the RF characterizations and the beam parameter diagnostics of the PC RF gun at the PAL.

Key concepts: Electron gun, Thermal emittance, Optics, Radio frequency, Cathode, Physics, Linear particle accelerator, Beam (structure)

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