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U.S. Department of Energy
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THE FINAL MECHANICAL DESIGN, FABRICATION, AND COMMISSIONING OF A WIRE SCANNER AND SCRAPER ASSEMBLY FOR HALO-FORMATION MEASUREMENTS IN A PROTON BEAM

Conference ·
The 6.7 MeV, 100 mA proton beam being produced in the Low Energy Demonstration Accelerator (LEDA) RFQ is being injected into a 52 magnet lattice in order to study the charged-beam phenomenon known as beam halo [1]. Quadrupole magnets in the lattice are purposely mismatched to cause or amplify halo formation in the beam. Interceptive diagnostics that consist of a thin wire and a paddle type device called a scraper are placed in the beam to obtain charge-distribution data. The charge-distribution data is used to create a current-density distribution plot of the beam at the probed location [2]. This paper describes the mechanical design, fabrication, and commissioning of the interceptive diagnostic devices and the assembly that carries them.
Research Organization:
Los Alamos National Lab., NM (US)
Sponsoring Organization:
US Department of Energy (US)
DOE Contract Number:
W-7405-ENG-36
OSTI ID:
782794
Report Number(s):
LA-UR-01-2915
Country of Publication:
United States
Language:
English