An 805 MHz Disk and Washer Structure for the Fermilab Linac Upgrade

Technical Report · Sat Oct 01 04:00:00 EDT 1988

DOI:https://doi.org/10.2172/1847341· OSTI ID:1847341

Moretti, A. ^[1]; Young, D. ^[1]; Lee, G. ^[1]; Mills, Frederick E. ^[1]; Zhou, P. ^[1]; Swenson, D. A. ^[2]; Young, P. E. ^[2]

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1. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
2. Science Applications International Corporation, Santa Clara, CA (United States)

The Linac Upgrade program, a portion of the Tevatron Upgrade, calls for increasing the energy of the existing 200 MeV, 201.25 MHz linac to 400 MeV in order to reduce beam emittance degradation in the Booster. This is to be accomplished by replacing the last four Alvarez linac tanks with more efficient, higher gradient 805 MHz linac structure. One of the linac structures currently under study in a collaboration between Fermilab and SAIC is the Disk- and-Washer accelerating structure with bi-periodic tee supports, four per washer pair. This structure has a stop-band for the TM₁₁ mode (a problem in other designs) centered near the π TM₀₂ accelerating mode frequency. A novel heat shrinking technique is used in the construction of a ten-cell one-meter long vacuum prototype structure. Description of the structure, testing techniques and test results are presented.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1847341
• Report Number(s): FERMILAB-LU-131; oai:inspirehep.net:275543
• Country of Publication: United States
• Language: English

Related Subjects

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97 MATHEMATICS AND COMPUTING