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UMER: A Model Ring for Heavy Ion Drivers

Author: Rami A Kishek
Requested Type: [none selected]
Submitted: 2006-12-11 16:48:28

Co-authors: G. Bai, B. Beaudoin, S. Bernal, D. Feldman, R. Fiorito, T.F. Godlove, I. Haber, P.G. O'Shea, B. Quinn, C. Papadopoulos, M. Reiser, D. Stratakis, D. Sutter, K. Tian, C.J.T. Thangaraj, M. Walter, and C. Wu

Contact Info:
University of Maryland
Energy Research Building (#223
College Park, MD   20742

Abstract Text:
Heavy ion fusion is a promising candidate for an economical fusion powerplant. Successful fusion however relies on solving several important challenges in driver beam dynamics that prevent the delivery of high-power, space-charge-dominated, beams to the target. Emittance growth and halo are two important issues that arise when transporting such high-brightness beams, each of which can lead to additional problems such as electron cloud or activation. The University of Maryland Electron Ring (UMER) is a unique machine that uses scaled electron beam at nonrelativistic energies (10 keV) to inexpensively model GeV beams of heavy ions. By injecting space-charge-dominated beams into the UMER lattice, we can do controlled experiments so as to learn about beam halo, emittance growth, and their mitigation. We have recently circulated in UMER the highest-space-charge beam in a ring to date, achieving a breakthrough both in the number of turns and in the amount of current propagated. This poster presents the latest results and discusses the issues involved.

Characterization: B2

would appreciate placement next to Heavy Ion Fusion posters

University of Maryland

Innovative Confinement Concepts Workshop
February 12-14, 2007
College Park, Maryland

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