Difference orbits and BPM-resolutions

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Description

In the interaction region of the SLC, the information of beam position monitors (BPM) is used to get crucial information on the beam parameters, like the position, the inclination, or the deflection of the beams at the interaction point. The information is usually extracted from the BPM readings by fitting orbits, using the known twiss parameters at the BPM positions. The quality of these fits depends, however, on the assumed resolutions of the BPMs. This is a particularly serious problem in the interaction region, since BPMs with quite different resolutions and very different values for the beta-function have to be ... continued below

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Pages: 13

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Emma, P. & Lohse, T. June 20, 1988.

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Description

In the interaction region of the SLC, the information of beam position monitors (BPM) is used to get crucial information on the beam parameters, like the position, the inclination, or the deflection of the beams at the interaction point. The information is usually extracted from the BPM readings by fitting orbits, using the known twiss parameters at the BPM positions. The quality of these fits depends, however, on the assumed resolutions of the BPMs. This is a particularly serious problem in the interaction region, since BPMs with quite different resolutions and very different values for the beta-function have to be combined. This note presents a method which allows empirical extraction of BPM-resolutions from the orbit-fits. The method has been originally developed in reference. It has been tested by Monte Carlo simulations and successfully exploited for the measurement of spatial resolutions of a time projection chamber. 2 refs., 3 figs., 5 tabs.

Physical Description

Pages: 13

Notes

NTIS, PC A03/MF A01; 1.

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  • Other Information: Portions of this document are illegible in microfiche products

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  • Other: DE88013255
  • Report No.: SLAC-CN-364
  • Grant Number: AC03-76SF00515
  • DOI: 10.2172/6907825 | External Link
  • Office of Scientific & Technical Information Report Number: 6907825
  • Archival Resource Key: ark:/67531/metadc1188850

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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

  • June 20, 1988

Added to The UNT Digital Library

  • July 2, 2018, 10:52 p.m.

Description Last Updated

  • Oct. 18, 2018, 4:58 p.m.

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Emma, P. & Lohse, T. Difference orbits and BPM-resolutions, report, June 20, 1988; United States. (digital.library.unt.edu/ark:/67531/metadc1188850/: accessed October 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.