6533b828fe1ef96bd1288f88

RESEARCH PRODUCT

Multipole compensation scheme for LHC low-beta insertions

A. VerdierA. Faus-golfe

subject

PhysicsParticle physicsFormalism (philosophy of mathematics)Large Hadron ColliderlawPhase spaceComputationFísicaParticle acceleratorBeam opticsHigh orderMultipole expansionlaw.invention

description

The LHC dynamic aperture in Physics conditions is determined by the field errors in the low-b quadrupoles and these errors set a lower limit to the value of b*. The associated aberrations have been computed with the transfer matrix method which gives particularly simple and efficient formulae for the case of low-b insertions. These formulae have been applied to the LHC case to design a multipole compensation system. The efficiency of the method has been assessed by trajectory tracking.

10.1063/1.52948http://hdl.handle.net/10550/42769