An Alternative Lattice Design for ILC Damping Ring

SUN Yi-Peng; GAO Jie; GUO Zhi-Yu

Chinese Physics C> 2006, Vol. 30> Issue(12) : 1190-1195

An Alternative Lattice Design for ILC Damping Ring

Key Laboratory of Heavy Ion Physics, Ministry of Education & School of Physics, Peking University, Beijing 100871, China2 Institute of High Energy Physics, CAS, Beijing 100049, China

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Abstract：
The ILC damping rings should provide beams with very low natural emittances for the linear collider to reach the required luminosity, and at the same time, the damping rings also need to have a large acceptance to ensure good injection efficiency for high emittance, high energy spread beam from the positron source. Meeting the above requirements is a real challenge for the ILC damping ring lattice design. In order to reduce the cost for ILC damping rings, an alternative lattice different from the baseline configuration design has been done with modified FODO cells， and the total quadrupole number has been reduced by half. The new lattice has been optimised to have good dynamic apertures.

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SUN Yi-Peng, GAO Jie and GUO Zhi-Yu. An Alternative Lattice Design for ILC Damping Ring[J]. Chinese Physics C, 2006, 30(12): 1190-1195.

SUN Yi-Peng, GAO Jie and GUO Zhi-Yu. An Alternative Lattice Design for ILC Damping Ring[J]. Chinese Physics C, 2006, 30(12): 1190-1195. shu

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Received: 2006-06-21
Revised: 2006-07-10

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沈阳化工大学材料科学与工程学院沈阳 110142

An Alternative Lattice Design for ILC Damping Ring

Corresponding author: SUN Yi-Peng,

Key Laboratory of Heavy Ion Physics, Ministry of Education & School of Physics, Peking University, Beijing 100871, China2 Institute of High Energy Physics, CAS, Beijing 100049, China

Received Date: 2006-06-21
Accepted Date: 2006-07-10
Available Online: 2006-12-05

Abstract: The ILC damping rings should provide beams with very low natural emittances for the linear collider to reach the required luminosity, and at the same time, the damping rings also need to have a large acceptance to ensure good injection efficiency for high emittance, high energy spread beam from the positron source. Meeting the above requirements is a real challenge for the ILC damping ring lattice design. In order to reduce the cost for ILC damping rings, an alternative lattice different from the baseline configuration design has been done with modified FODO cells， and the total quadrupole number has been reduced by half. The new lattice has been optimised to have good dynamic apertures.