Some thoughts on the LAMPF II lattice [electronic resource]
The lattice proposal of Rees and Copper is discussed. It is shown that dispersion-free straight sections result if the appropriate symmetry is observed within each group of bends. The increase of dispersion in the straight sections is investigated for a lattice with nominal dispersion-free straight...
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Online Access |
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| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Los Alamos, N.M. : Oak Ridge, Tenn. :
Los Alamos National Laboratory ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy,
1982.
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| Subjects: |
MARC
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| 245 | 0 | 0 | |a Some thoughts on the LAMPF II lattice |h [electronic resource] |
| 260 | |a Los Alamos, N.M. : |b Los Alamos National Laboratory ; |a Oak Ridge, Tenn. : |b distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, |c 1982. | ||
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| 500 | |a "DE82021258" | ||
| 500 | |a Thiessen, H.A. | ||
| 520 | 3 | |a The lattice proposal of Rees and Copper is discussed. It is shown that dispersion-free straight sections result if the appropriate symmetry is observed within each group of bends. The increase of dispersion in the straight sections is investigated for a lattice with nominal dispersion-free straight sections in which the phase shift per cell is tuned slightly to avoid resonances. A method of tuning the transition energy without changing nu in such a lattice is also investigated. An alternative to the Rees and Cooper lattice is proposed. This lattice is of the FOFODODO type, has six long straight sections, and will permit 32 GeV to be obtained in the same circumference as the Rees and Cooper lattice. The proposed design offers reasonable hope that our specification of l-ns time definition in the extracted beam will be met. We note with caution that the suggested lattice has some controversial features. Included are a transition energy of 5 GeV and 16-kG field in the bending magnets. This proposal is intended as a stimulus for further discussion, not as a final design. | |
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