Proposed OTR Measurements of 120-GeV Protons and Antiprotons at FNAL
- Fermi National Accelerator Laboratory, Batavia, IL 60510 (United States)
- Argonne National Laboratory, Argonne, IL 60439 (United States)
Fermi National Accelerator Laboratory (FNAL) is developing optical transition radiation (OTR) detectors for beam diagnostics for their 120-GeV proton and antiproton transfer lines. As part of a collaboration to enhance the luminosity for the FNAL collider RUN II program, the quality of the proton and antiproton beams, as they are transported from the main injector (MI) to the Tevatron, will be characterized using OTR imaging techniques. A prototype detector in air has already successfully acquired OTR images of 120-GeV protons upstream of the antiproton production target. This result demonstrates that (i) the Ti and Al thin foil screens survive the 5 x 1012 proton beam spills, (ii) OTR is sufficient to image lower intensity antiproton beams, and (iii) the images provide two-dimensional information and higher resolution than the present multi-wire profile monitors in the transport lines. Beam bombardment effects on the Al screen and radiation effects on the lenses, filters and cameras have been evaluated for the prototype system for over 1 x 1019 120-GeV protons and will also be presented. An in-vacuum OTR station is being designed for the transport lines with adjustments to the optical components as warranted by the beam characteristics and anticipated radiation environment.
- OSTI ID:
- 20630301
- Journal Information:
- AIP Conference Proceedings, Vol. 732, Issue 1; Conference: 11. beam instrumentation workshop, Knoxville, TN (United States), 3-6 May 2004; Other Information: DOI: 10.1063/1.1831176; (c) 2004 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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