Bench measurements of coupling impedance of AGS Booster components

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Quantifying instability thresholds for modern synchrotrons and storage rings requires some knowledge of the accelerator's coupling impedance. To this end, the wire technique has been implemented to measure the longitudinal coupling impedance of AGS Booster devices. The techniques are being refined to allow measurement of RHIC devices at higher frequencies. All the measurements are performed using an HP 8753 Network Analyzer controlled via GPIB by a Macintosh computer. The computer provides an environment for automated data acquisition, data analysis, and report generation. Resistive matches between the 50{omega} analyzer cables and the 300{omega} pipe-and-wire structure allow the use of a simple ... continued below

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Pages: (2 p)

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Ratti, A. & Shea, T.J. January 1, 1991.

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Description

Quantifying instability thresholds for modern synchrotrons and storage rings requires some knowledge of the accelerator's coupling impedance. To this end, the wire technique has been implemented to measure the longitudinal coupling impedance of AGS Booster devices. The techniques are being refined to allow measurement of RHIC devices at higher frequencies. All the measurements are performed using an HP 8753 Network Analyzer controlled via GPIB by a Macintosh computer. The computer provides an environment for automated data acquisition, data analysis, and report generation. Resistive matches between the 50{omega} analyzer cables and the 300{omega} pipe-and-wire structure allow the use of a simple response calibration in the measurement of S21 to 400MHz. Results from ferrite loaded rf cavities, position monitors and kickers are presented. 4 refs., 4 figs.

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Pages: (2 p)

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OSTI; NTIS; INIS; GPO Dep.

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  • 1991 Institute of Electrical and Electronics Engineers (IEEE) particle accelerator conference (PAC), San Francisco, CA (USA), 6-9 May 1991

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  • Other: DE91014805
  • Report No.: BNL-45476
  • Report No.: CONF-910505--332
  • Grant Number: AC02-76CH00016
  • Office of Scientific & Technical Information Report Number: 5617027
  • Archival Resource Key: ark:/67531/metadc1092138

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  • January 1, 1991

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  • Feb. 10, 2018, 10:06 p.m.

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  • April 24, 2018, 11:42 a.m.

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Ratti, A. & Shea, T.J. Bench measurements of coupling impedance of AGS Booster components, article, January 1, 1991; Upton, New York. (digital.library.unt.edu/ark:/67531/metadc1092138/: accessed November 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.