Lattice Matching with a Quadrupole Missing
Rainer Wanzenberg
Abstract
The lattice for the present design of the TESLA Linear Collider with integrated X-Ray Laser Facility is basically a FODO structure with constant beta-function. There are more than 800 individually powered superconducting quadrupoles to focus the beam in the two main linear accelerators (each with a length of 15 km). For the availability of the beams it is important that a power supply failure or even a magnet failure does not cause a significant down time of the linac. It is demonstrated that the beta-function can be matched with a quadrupole "missing". One part of the main linac (up-to 50 GeV) will be used to accelerate the High Energy Physics beam and the Free Electron Laser drive beam with different accelerating gradients. Therefore the betatron phase advance will be 60 deg. or 90 deg. depending on the beam energy. It is shown that even in that case it is possible to match the lattice simultaneously for both beams with a quadrupole missing.
Create a lesson
Related papers
Physics of stabilization and dynamic control of CW magnetrons for superconducting accelerators
G. Kazakevich, R. P. Johnson, I. Gonin et al.
AloHEP Software: A luminosity optimizer for High Energy Physics colliders
Burak Dagli, Yigitali Karaca
Development of a continuous-wave photocathode very-high-frequency electron gun for S3FEL
Lianmin Zheng, Yitong Duan, Yuanyuan Qin et al.
Limits on energy recovery for positron acceleration in a warm plasma column
Max Varverakis, Spencer Gessner, Severin Diederichs et al.
Construction of Approximate Invariants Across Nonlinear Resonances
Yongjun Li, Derong Xu, Yue Hao et al.
Effect of transition layer on wakefield in plasma waveguide
Peter Markov, Kostyantyn Galaydych, Gennadiy Sotnikov