Measurements of field decay and snapback effect on Tevatron dipole magnets

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The performance of Fermilab's Tevatron accelerator, currently in its Run II stage, is degraded by beam loss and emittance dilution during ramping from injection to collision energy. This could be related in part to insufficient compensation of dynamic effects such as the decay of the magnetic field in the dipoles during the dwell at injection and the following so-called snapback during the first few seconds of the energy ramp. The two effects are closely related and depend on the powering history of the magnets. Dynamic effects, which were originally discovered at the Tevatron, were investigated on Tevatron magnets in various ... continued below

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al., Gueorgui V Velev et June 17, 2003.

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The performance of Fermilab's Tevatron accelerator, currently in its Run II stage, is degraded by beam loss and emittance dilution during ramping from injection to collision energy. This could be related in part to insufficient compensation of dynamic effects such as the decay of the magnetic field in the dipoles during the dwell at injection and the following so-called snapback during the first few seconds of the energy ramp. The two effects are closely related and depend on the powering history of the magnets. Dynamic effects, which were originally discovered at the Tevatron, were investigated on Tevatron magnets in various past measurement campaigns in the 1980s and later in 1996. This paper reports on the most recent measurements performed on an additional set of Tevatron magnets.

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478 Kilobytes pages

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  • PAC 2003, Portland, OR (US), 05/12/2003--05/16/2003

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  • Report No.: FERMILAB-Conf-03-108-E
  • Grant Number: AC02-76CH03000
  • Office of Scientific & Technical Information Report Number: 811865
  • Archival Resource Key: ark:/67531/metadc737317

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  • June 17, 2003

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  • Oct. 18, 2015, 6:40 p.m.

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  • April 1, 2016, 6:27 p.m.

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al., Gueorgui V Velev et. Measurements of field decay and snapback effect on Tevatron dipole magnets, article, June 17, 2003; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc737317/: accessed October 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.