3 papers

title:	Magnetic Chicane Radiation Studies at the BNL ATF
format:	conference procceeding
conference:
year:	2006
11 authors:	M.Dunning | G. Andonian | A.M.Cook | E.Hemsing | A.Murokh | S. Reiche | J. B. Rosenzweig | D. Schiller | M. BABZIEN | K. Kusche | V. Yakimenko
abstract:	Radiation emitted by relativistic electrons traversing the magnetic field gradients of a chicane bunch compressor has been studied in an attempt to characterize coherent edge radiation (CER). The studies performed at the Accelerator Test Facility (ATF) at Brookhaven National Laboratory (BNL) include frequency spectrum, angular distribution, and polarization measurements. A reconstruction of the longitudinal charge profile from the measured spectrum shows that the bunch has been compressed to approximately 30 μm FWHM, with a peak current exceeding 1.5 kA. Measurements of radiation from the short pulses are compared to predictions from QUINDI, a new simulation code developed at UCLA to model the radiation.
keywords:
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title:	Beam compression experiments using the UCLA/ATF compressor
format:	conference procceeding
conference:
year:	2006
13 authors:	D. Schiller | E. Hemsing | J. B. Rosenzweig | M.P. Dunning | G. Andonian | A. Murokh | A.M. Cook | S. Reiche | M. Babzien | K. Kusche | V. Yakimenko | L. Palumbo | C. Vicario
abstract:	We review recent experimental results from the BNL ATF using the compressor built by UCLA. The measurements discussed include: first observation of short wavelength coherent edge radiation angular/wavelength spectrum and spectrum, sub-100 fsec pulse-length coherent transition autocorrelation measurements, and longitudinal and transverse phase space distortions. Extension of these measurements, as well as those which can be made possible by a new X-band traveling wave deflector being developed in an industrial collaboration, are examined.
keywords:	quindi
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title:	QUINDI- A Code to Simulate Coherent Emission from Bending Systems
format:	conference procceeding
conference:	2007 Particle Accelerator Conference
year:	2007
3 authors:	M. Ruelas | S. Reiche | D. Schiller
abstract:	We present a newly developed code, QUINDI, to address the numerical challenge of calculating the radiation spectra from electron bunches in bending magnet systems. This code provides a better tool for designing diagnostic systems such as bunch length monitors in magnetic chicanes. The program calculates emission on a first principle basis, combining the dominant emission processes in a bending magnet system -- edge and synchrotron radiation. The core algorithm is based on the Lienard-Wiechert potential and utilizes parallel computer architecture to cover complete electron beam distributions with a high resolution spatial grid. The program models the coherence level of the emitted radiation from the electron bunch, focusing on long frequency components.
keywords:	software   pac   quindi   pbpl
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