Effects of slots/holes in disks on frequencies of TM/sub 01/ and EH/sub 11/ waves in the disk-loaded waveguide

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The increase in the BBU threshold current is very important for the high and medium energy electron linacs because of a larger operating current attainable or a smaller emittance available at certain operating current. For this purpose, many means can be used, among which the improvement in the accelerating structure itself is always fundamental. SLAC's three-meter long section is unique with truly constant gradient performance. The theoretical analyses and operating experiences at SLAC have indicated that detuning the Nos. 3, 4 and 5 cavities of some sections by 2 or 4 MHz for TM/sub 01/ wave had considerably raised the … continued below

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4 pages

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Yao, C.G. March 1, 1985.

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The increase in the BBU threshold current is very important for the high and medium energy electron linacs because of a larger operating current attainable or a smaller emittance available at certain operating current. For this purpose, many means can be used, among which the improvement in the accelerating structure itself is always fundamental. SLAC's three-meter long section is unique with truly constant gradient performance. The theoretical analyses and operating experiences at SLAC have indicated that detuning the Nos. 3, 4 and 5 cavities of some sections by 2 or 4 MHz for TM/sub 01/ wave had considerably raised the BBU threshold current. A method of opening four holes symmetrically distributed on disks as described in detail will get the benefits in improvement of BBU threshold current.

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4 pages

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NTIS, PC A02/MF A01.

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  • Particle accelerator conference, Vancouver, Canada, 13 May 1985

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  • Other: DE85013376
  • Report No.: SLAC-PUB-3599
  • Report No.: CONF-850504-150
  • Grant Number: AC03-76SF00515
  • Office of Scientific & Technical Information Report Number: 5673894
  • Archival Resource Key: ark:/67531/metadc1085201

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Office of Scientific & Technical Information Technical Reports

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  • March 1, 1985

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  • Feb. 10, 2018, 10:06 p.m.

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  • Jan. 13, 2020, 5:18 p.m.

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Yao, C.G. Effects of slots/holes in disks on frequencies of TM/sub 01/ and EH/sub 11/ waves in the disk-loaded waveguide, article, March 1, 1985; California. (https://digital.library.unt.edu/ark:/67531/metadc1085201/: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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