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

Conference · Sun Apr 01 00:00:00 EST 2001

DOI:https://doi.org/10.1109/PAC.2001.986668· OSTI ID:975346

Valdiviez, R ^[1]; Martinez, F A ^[2]; Rendon, Armando M; Wright, T O ^[3]; Ledford, J E ^[4]; Patterson, N K ^[5]; Bruhn, D C ^[6]; Haagenstad, H T ^[7]; Gilpatrick, J D ^[8]; Martinez, D G ^[9]; O'Hara, J F ^[10]

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1. Robert
2. Felix A.
3. Tony O.
4. John E.
5. Norman K.
6. Donald C.
7. Harvey T.
8. John Douglas
9. Derwin G.
10. James F.

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 Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE
• OSTI ID: 975346
• Report Number(s): LA-UR-01-2915; TRN: US1002434
• Resource Relation: Journal Volume: 2; Conference: "Submitted to: 2001 Particle Accelerator Conference, Chicago, IL, June 18-22, 2001."
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
CHARGE DISTRIBUTION
COMMISSIONING
CURRENT DENSITY
DESIGN
DISTRIBUTION
FABRICATION
MAGNETS
PROTON BEAMS
QUADRUPOLES
SCRAPERS