RF impedance measurement status for the 7-GeV Advanced Photon Source (APS)

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Beam-coupling impedances (Z) for the 7-GeV APS storage ring have been numerically estimated. In order to confirm these calculations, the wire method with a synthetic pulse technique was used to measure the beam coupling impedance of various vacuum components around the main storage ring. A section of the beam+antechambers, a vacuum isolation valve with and without the RF shielding screen, an insertion device, and a photon absorber were used as a device under test (DUT) to obtain the results. The results were compared with the computer simulations and the Z or k-dependence on bunch lengths was studied.

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Song, J.J. & Kustom, R.L. January 1, 1992.

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Description

Beam-coupling impedances (Z) for the 7-GeV APS storage ring have been numerically estimated. In order to confirm these calculations, the wire method with a synthetic pulse technique was used to measure the beam coupling impedance of various vacuum components around the main storage ring. A section of the beam+antechambers, a vacuum isolation valve with and without the RF shielding screen, an insertion device, and a photon absorber were used as a device under test (DUT) to obtain the results. The results were compared with the computer simulations and the Z or k-dependence on bunch lengths was studied.

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Pages: (3 p)

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OSTI; NTIS; INIS; GPO Dep.

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  • 3. European particle accelerator conference, Berlin (Germany), 24-28 Mar 1992

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  • Other: DE92013060
  • Report No.: ANL/CP-75861
  • Report No.: CONF-920315--31
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 5645975
  • Archival Resource Key: ark:/67531/metadc1092379

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  • January 1, 1992

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  • Feb. 10, 2018, 10:06 p.m.

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  • April 17, 2018, 3:18 p.m.

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Song, J.J. & Kustom, R.L. RF impedance measurement status for the 7-GeV Advanced Photon Source (APS), article, January 1, 1992; Illinois. (digital.library.unt.edu/ark:/67531/metadc1092379/: accessed January 17, 2019), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.