Direct Measurement of Geometric Wakefields from Tapered Rectangular Collimators

Technical Report · Tue Aug 29 04:00:00 EDT 2000

DOI:https://doi.org/10.2172/764981· OSTI ID:764981

Tenenbaum, Peter G ^[1]

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1. SLAC

Direct measurement of the short-range wakefield due to a series of tapered collimators is presented. The wakefields were measured by inserting a fixed aperture in the path of the electron beam at the 1.19 GeV point of the SLAC linac. As the vertical position of the collimator is varied, the vertical deflection of the beam is measured on 29 downstream beam position monitors. A series of apertures with different geometries were studied to permit confirmation of the scaling laws and magnitude of deflection predicted by theory. Description of the apparatus and collimator aperture specifications, predicted centroid deflections, and measured deflections are discussed.

• Research Organization: Stanford Linear Accelerator Center, Menlo Park, CA (US)
• Sponsoring Organization: USDOE Office of Energy Research (ER) (US)
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 764981
• Report Number(s): SLAC-PUB-8563
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
APERTURES
BEAM MONITORS
BEAM POSITION
COLLIMATORS
ELECTRON BEAMS
LINEAR ACCELERATORS
SCALING LAWS
SPECIFICATIONS