Superconducting Prototype Cavities for the Spallation Neutron Source (SNS) Project

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The Spallation Neutron Source project includes a superconducting linac section in the energy range from 192 MeV to 1000 MeV. For this energy range two types of cavities are needed with geometrical beta - values of beta = 0.61 and beta = 0.81. An aggressive cavity prototyping program is being pursued at Jlab, which calls for fabricating and testing of four beta = 0.61 cavities and two beta = 0.81 cavities. Both types consist of six cells made from high purity niobium and feature one HOM coupler of the TESLA type on each beam pipe and a port for a ... continued below

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125 Kilobytes pages

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Kneisel, Peter; Brawley, John; Bundy, Richard; Ciovati, Gianluigi; Macha, Kurt; Machie, Danny et al. June 1, 2001.

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Description

The Spallation Neutron Source project includes a superconducting linac section in the energy range from 192 MeV to 1000 MeV. For this energy range two types of cavities are needed with geometrical beta - values of beta = 0.61 and beta = 0.81. An aggressive cavity prototyping program is being pursued at Jlab, which calls for fabricating and testing of four beta = 0.61 cavities and two beta = 0.81 cavities. Both types consist of six cells made from high purity niobium and feature one HOM coupler of the TESLA type on each beam pipe and a port for a high power coaxial input coupler. Three of the four beta = 0.61 cavities will be used for a cryomodule test at the end of the year 2001. At this time two cavities of each type have been fabricated and the first tests on the beta = 0.61 cavity exceeded the design values for gradient and Q - value: Eacc = 10.3 MV/m and Q = 6.5 x 10{sup 9} at 2.1K. This paper will describe the cavity design with respect to electrical and mechanical features, the fabrication efforts and the results obtained with the different cavities existing at the time of the conference.

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125 Kilobytes pages

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  • PAC 2001, Chicago, IL (US), 06/18/2001--06/22/2001

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  • Report No.: JLAB-ACT-01-05
  • Report No.: DOE/ER/40150-1879
  • Grant Number: AC00-00OR22725
  • Office of Scientific & Technical Information Report Number: 783627
  • Archival Resource Key: ark:/67531/metadc724411

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  • June 1, 2001

Added to The UNT Digital Library

  • Sept. 29, 2015, 5:31 a.m.

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  • Feb. 5, 2016, 8:59 p.m.

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Kneisel, Peter; Brawley, John; Bundy, Richard; Ciovati, Gianluigi; Macha, Kurt; Machie, Danny et al. Superconducting Prototype Cavities for the Spallation Neutron Source (SNS) Project, article, June 1, 2001; Newport News, Virginia. (digital.library.unt.edu/ark:/67531/metadc724411/: accessed September 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.