2 papers

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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title:	High Average Current Betatrons for Industrial and Security Applications
format:	conference procceeding
conference:	PAC07
year:	2007
8 authors:	S. Boucher | R. Agustsson | P. Frigola | A. Murokh | M. Ruelas | F. O'Shea | J. Rosenzweig | G. Travish
abstract:	The fixed-field alternating-gradient (FFAG) betatron has emerged as a viable alternative to RF linacs as a source of high-energy radiation for industrial and security applications. For industrial applications, high average currents at modest relativistic electron beam energies, typically in the 5 to 10 MeV range, are desired for medical product sterilization, food irradiation and materials processing. For security applications, high power x-rays in the 3 to 20 MeV range are needed for rapid screening of cargo containers and vehicles. In a FFAG betatron, high-power output is possible due to high duty factor and fast acceleration cycle: electrons are injected and accelerated in a quasi-CW mode while being confined and focused in the fixed-field alternating- gradient lattice. The beam is accelerated via magnetic induction from a betatron core made with modern low- loss magnetic materials. Here we present the design and status of a prototype FFAG betatron, called the Radiatron, as well as future prospects for these machines.
keywords:	pbpl_pub
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