The final mechanical design, fabrication, and commissioning of a wire scanner and scraper assembly for halo-formation measurements in a proton beam

Author

Valdiviez, R. ; Martinez, Fabiola ; Rendon, A. ; Wright, T. ; Ledford, J. ; Patterson, Nicholas ; Bruhn, Dominik ; Haagenstad, H. ; Gilpatrick, J.D.

Author_Institution

Los Alamos Nat. Lab., NM, USA

Volume

2

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

1324

Abstract

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. 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. This paper describes the mechanical design, fabrication, and commissioning of the interceptive diagnostic devices and the assembly that carries them

Keywords

particle beam diagnostics; proton beams; wires (electric); 6.7 MeV; beam halo; charge-distribution; current-density distribution; diagnostics; fabrication; mechanical design; proton beam; wire scanner; wire scraper; Assembly; Atomic measurements; Clamps; Fabrication; Lattices; Mechanical variables measurement; Particle beams; Temperature sensors; Thermionic emission; Wire;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001

Print_ISBN

0-7803-7191-7

Type

conf

DOI

10.1109/PAC.2001.986668

Filename

986668