CERN Accelerating science

Article
Title	Evaluation of Magnetic Field Enhancement Along a Boundary
Author(s)	Iwashita, Y
Affiliation	(Kyoto ICR, Kyoto KEK, Ibaraki)
Publication	2004
In:	22nd International Linear Accelerator Conference, Lubeck, Germany, 16 - 20 Aug 2004, pp.501
Subject category	Accelerators and Storage Rings
Abstract	Generally, a cavity has convex corners on its inner surface, where the surface field becomes higher than the average accelerating gradient. This effect has been paid attention not to exceed a criterion only on surfaces that have high electric field gradient. A high magnetic field area, however, sometimes seems harmful on a stable operation too. Such enhancement factors are evaluated in a 2D model to show a feasible crossing angle limit on a convex angle of two surfaces.