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Proceedings Paper

Optical Alignment To Set A Skewed Beamline For Neutrino Research At The LAMPF Accelerator
Author(s): Walter Bauke; David A. Clark; Peter B. Trujillo
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Paper Abstract

The Los Alamos Meson Physics Facility (LAMPF) consists of a linear accelerator with multiple target systems, where the particle beam is being switched into separate channels to be aimed at discrete terminals to perform a variety of functions. The beam is always enclosed in an evacuated pipe with directional changes following simple geometric patterns along vertical or horizontal reference lines. Beam steering and focusing is accomplished with magnets surrounding the evacuated beam tubes. In a novel application it was necessary to cut into an existing beam tube and add a line which was to be skewed in a compound angle to clear the existing equipment and fit into the limited space provided in the beam tunnel. Alignment of the skewed beamline was accomplished by setting optical reference lines and planes to calculated beam centerlines and positioning the beam pipes and most magnets to these references using special centering fixtures. This paper describes the combined use of the optical tooling and surveying technology as applied to the marking of the components and positioning of subassemblies in the reference grid. Auxiliary targets and alignment fixtures were developed to facilitate the unique procedures and are described. Design and measured alignment tolerances are compared.

Paper Details

Date Published: 13 August 1984
PDF: 8 pages
Proc. SPIE 0483, Optical Alignment II, (13 August 1984); doi: 10.1117/12.943133
Show Author Affiliations
Walter Bauke, University of California (United States)
David A. Clark, University of California (United States)
Peter B. Trujillo, University of California (United States)

Published in SPIE Proceedings Vol. 0483:
Optical Alignment II
Mitchell C. Ruda, Editor(s)

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