EVALUATION AND TESTING OF A LOW-B SPOKE RESONATOR

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Within the framework of the Advanced Accelerator Applications (AAA) project we are interested in building and testing low-{beta} spoke resonators (cavities). To familiarize us with the specifics of these structures Argonne National Laboratory (ANL) kindly loaned us one of their spoke cavities for evaluation. This is a {beta}=0.291 2-gap resonator at 340 MHz. We benchmarked our computer codes by comparing room temperature measurements of frequency, tuning sensitivity, tuning forces, etc. with our 3D simulation results. The cavity was tested at both 4 K and 2 K. The results showed maximum accelerating gradients of 12.5 MV/m (4 K) and 12.3 MV/m ... continued below

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TAJIMA, T.; MONTOYA, D. I & AL, ET June 1, 2001.

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Within the framework of the Advanced Accelerator Applications (AAA) project we are interested in building and testing low-{beta} spoke resonators (cavities). To familiarize us with the specifics of these structures Argonne National Laboratory (ANL) kindly loaned us one of their spoke cavities for evaluation. This is a {beta}=0.291 2-gap resonator at 340 MHz. We benchmarked our computer codes by comparing room temperature measurements of frequency, tuning sensitivity, tuning forces, etc. with our 3D simulation results. The cavity was tested at both 4 K and 2 K. The results showed maximum accelerating gradients of 12.5 MV/m (4 K) and 12.3 MV/m (2 K), which correspond to a peak electric field of 40 MV/m and a peak magnetic field of 1063 Oe. Q{sub 0} values at 5 MV/m also exceeded by more than a factor 2 of present AAA specification. These results encouraged us toward development of spoke cavities for the low energy section (6.7 MeV to 109 MeV) of ADTF (Accelerator-Driven Test Facility) of AAA project.

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99 Kilobytes pages

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  • Report No.: LA-UR-01-3141
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 783284
  • Archival Resource Key: ark:/67531/metadc721115

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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.

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  • June 1, 2001

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  • Sept. 29, 2015, 5:31 a.m.

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  • March 21, 2016, 3:07 p.m.

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TAJIMA, T.; MONTOYA, D. I & AL, ET. EVALUATION AND TESTING OF A LOW-B SPOKE RESONATOR, article, June 1, 2001; New Mexico. (digital.library.unt.edu/ark:/67531/metadc721115/: accessed December 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.