PAC07 - List of Authors (Munro, M.)

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Munro, M.

Paper	Title	Page
FRPMS079	SUPPRESSION OF SECONDARY ELECTRON EMISSION USING TRIANGULAR GROOVED SURFACE IN THE ILC DIPOLE AND WIGGLER MAGNETS	4234
	L. Wang, K. L.F. Bane, C. Chen, T. M. Himel, M. Munro, M. T.F. Pivi, T. O. Raubenheimer, G. V. Stupakov SLAC, Menlo Park, California
	Funding: Work supported by the U. S. Department of Energy under contract DE-AC02-76SF00515 The development of an electron cloud in the vacuum chambers of high intensity positron and proton storage rings may limit machine performance. The suppression of electrons in a magnet is a challenge for the positron damping ring of the International Linear Collider (ILC) as well as the Large Hadron Collider. Simulation show that grooved surfaces can significantly reduce the electron yield in a magnet. Some of the secondary electrons emitted from the grooved surface return to the surface within a few gyrations, resulting in a low effective secondary electron yield (SEY) of below 1.0 A triangular surface is an effective, technologically attractive mitigation with a low SEY and a weak dependence on the scale of the corrugations and the external magnetic field. A chamber with triangular grooved surface is proposed for the dipole and wiggler sections of the ILC and will be tested in PEP-II in 2007. The strategy of electron cloud control in ILC and the optimization of the grooved chamber such as the SEY, impedance as well as the manufacturing of the chamber, are also discussed. SLAC-PUB-11933 & NIMA in publication

Paper

Title

Page

FRPMS079

SUPPRESSION OF SECONDARY ELECTRON EMISSION USING TRIANGULAR GROOVED SURFACE IN THE ILC DIPOLE AND WIGGLER MAGNETS

4234

L. Wang, K. L.F. Bane, C. Chen, T. M. Himel, M. Munro, M. T.F. Pivi, T. O. Raubenheimer, G. V. Stupakov
SLAC, Menlo Park, California

Funding: Work supported by the U. S. Department of Energy under contract DE-AC02-76SF00515

The development of an electron cloud in the vacuum chambers of high intensity positron and proton storage rings may limit machine performance. The suppression of electrons in a magnet is a challenge for the positron damping ring of the International Linear Collider (ILC) as well as the Large Hadron Collider. Simulation show that grooved surfaces can significantly reduce the electron yield in a magnet. Some of the secondary electrons emitted from the grooved surface return to the surface within a few gyrations, resulting in a low effective secondary electron yield (SEY) of below 1.0 A triangular surface is an effective, technologically attractive mitigation with a low SEY and a weak dependence on the scale of the corrugations and the external magnetic field. A chamber with triangular grooved surface is proposed for the dipole and wiggler sections of the ILC and will be tested in PEP-II in 2007. The strategy of electron cloud control in ILC and the optimization of the grooved chamber such as the SEY, impedance as well as the manufacturing of the chamber, are also discussed.

SLAC-PUB-11933 & NIMA in publication