Ion tracking in photocathode rf guns
نویسندگان
چکیده
منابع مشابه
Ion Tracking in Photocathode RF Guns
Projected next-generation linac-based light sources such as PERL or the TESLA free-electron laser (FEL) generally assume, as essential components of their injector complexes, long-pulse photocathode rf electron guns. These guns, due to the nature in which they are operated, may be more susceptible to ion bombardment damage of their cathodes than conventional rf guns. This paper explores this po...
متن کاملrookhaven photocathode rf gun
The Brookhaven Accelerator Test Facility (ATF) uses a photocathode rf gun to provide a high-brightness electron beam intended for FEL and laser acceleration experiments. The rf gun consists of 1-,' cells driven at 2856 MHz in 7r-mode with a maximum cathode field of 100 MV/m. To achieve long lifetimes, our photocathode development concentrates on robust metals such as copper, yttrium and samariu...
متن کاملPhotocathode Guns for Single Pass X-ray FELs
The present state of the art in photoinjector designs will be presented in this review. We will discuss both proposed and operational photoinjectors with operating frequencies from L-band (1.424 GHz) to X-band (11.424 GHz). Also a novel pulsed DC gun will be presented. All the RF photoinjector discussed here use an emittance compensation scheme [1] [2] to align the different slices of the the e...
متن کاملObservation of a Charge Limit for Photocathode Electron Guns
The Photocathode Electron Gun (PEG) at SLAC is required to produce bunch intensities of up to 10 electrons within 2 ns (8 Amps). Operation of PEG has demonstrated a ‘Charge Limit’ phenomenon, whereby the charge that can be extracted from the gun with an intense laser beam saturates at significantly less than 10 electrons (the expected ‘Space Charge Limited’ charge) when the photocathode Quantum...
متن کاملReduction of thermal emittance of rf guns
The transverse emittance from optimized rf photoinjectors is limited by the thermal emittance. The thermal emittance can be lowered by a factor >2 by using a semiconductor photocathode. Presented at the International Symposium on New Visions in Laser-Beam Interactions Tokyo, Japan October 11-15, 1999 * Work supported by Department of Energy contract DE-AC03-76SF00515. † Corresponding author ema...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review Special Topics - Accelerators and Beams
سال: 2002
ISSN: 1098-4402
DOI: 10.1103/physrevstab.5.020101