Tickling C:AQ7

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The alignment of the quadrupoles in a proton synchrotron is important and the alignment of the low beta quadrupoles in collider mode is even more critical. One of the important considerations is the relationship of the electrical center of the Beam Position Monitors (BPMs) to the magnetic center of quadrupoles. Determining this involves measurements when the elements are not in the tunnel and careful alignment utilizing external reference marks when the BPMs are not physically attached to the quadrupole. Even when the BPM is attached to the quadrupole (and calibrated), systematic offsets can be introduced by cable mismatch or slight ... continued below

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11 p.

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Moore, C.D & Pfeffer, H. January 1, 1996.

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Description

The alignment of the quadrupoles in a proton synchrotron is important and the alignment of the low beta quadrupoles in collider mode is even more critical. One of the important considerations is the relationship of the electrical center of the Beam Position Monitors (BPMs) to the magnetic center of quadrupoles. Determining this involves measurements when the elements are not in the tunnel and careful alignment utilizing external reference marks when the BPMs are not physically attached to the quadrupole. Even when the BPM is attached to the quadrupole (and calibrated), systematic offsets can be introduced by cable mismatch or slight imbalances in the monitoring electronics. A method has been implemented at Cern to determine this relationship using the beam itself. This paper will describe a proof of one of the individually powered quadrupoles near the BO interaction region whose ACNET name is C:AQ7.

Physical Description

11 p.

Notes

INIS; OSTI as DE96007273

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  • Other Information: PBD: Jan 1996

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  • Other: DE96007273
  • Report No.: FNAL-TM--1960
  • Grant Number: AC02-76CH03000
  • DOI: 10.2172/200675 | External Link
  • Office of Scientific & Technical Information Report Number: 200675
  • Archival Resource Key: ark:/67531/metadc670967

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • January 1, 1996

Added to The UNT Digital Library

  • June 29, 2015, 9:42 p.m.

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  • April 1, 2016, 6:01 p.m.

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Moore, C.D & Pfeffer, H. Tickling C:AQ7, report, January 1, 1996; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc670967/: accessed May 24, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.