THOBAB  —  LAMEAR: Low- & Medium-energy Accelerators and Rings   (28-Jun-07   12:00—12:30)

Chair: E. S. McCrory, Fermilab, Batavia, Illinois

Paper	Title	Page
THOBAB01	EMMA - the World's First Non-scaling FFAG	2624
	T. R. Edgecock
	EMMA - the Electron Model of Muon Acceleration - is to be built at the CCLRC Daresbury Laboratory in the UK. It will demonstrate the principle of non-scaling FFAGs and be used to study the features of this type of accelerator in detail. Although a model of the muon accelerators in a Neutrino Factory, EMMA will have sufficient flexibility to study a variety of applications. It has been designed by an international collaboration of accelerator physicists and will be built as part of the CONFORM project using funds recently approved in the UK.
	Slides
THOBAB02	Commissioning the DARHT-II Scaled Accelerator Downstream Transport	2627
	M. E. Schulze E. O. Abeyta, P. Aragon, R. Archuleta, J. Barraza, D. Dalmas, C. Ekdahl, K. Esquibel, S. Eversole, R. J. Gallegos, J. Harrison, E. Jacquez, J. Johnson, P. S. Marroquin, B. T. McCuistian, N. Montoya, S. Nath, L. J. Rowton, R. D. Scarpetti, M. Schauer LANL, Los Alamos, New Mexico R. Anaya, G. J. Caporaso, F. W. Chambers, Y.-J. Chen, S. Falabella, G. Guethlein, J. F. McCarrick, B. A. Raymond, R. A. Richardson, J. A. Watson, J. T. Weir LLNL, Livermore, California H. Bender, W. Broste, C. Carlson, D. Frayer, D. Johnson, A. Tipton, C.-Y. Tom NSTec, Los Alamos, New Mexico T. C. Genoni, T. P. Hughes, C. H. Thoma Voss Scientific, Albuquerque, New Mexico
	The DARHT-II accelerator will produce a 2-kA, 17-MeV beam in a 1600-ns pulse when completed this summer. After exiting the accelerator, the long pulse is sliced into four short pulses by a kicker and quadrupole septum and then transported for several meters to a tantalum target for conversion to bremsstrahlung for radiography. We describe tests of the kicker, septum, transport, and multi-pulse converter target using a short accelerator assembled from the first available refurbished cells, which are now capable of operating of operating at over 200 kV. This scaled accelerator was operated at ~ 8 Mev and ~1 kA, which provides a beam with approximately the same nu/gamma as the final 17-MeV, 2-kA beam, and therefore the same beam dynamics in the downstream transport. The results of beam measurements made during the commissioning of this scaled accelerator downstream transport are described.
	Slides