PAC09 - List of Authors (Allen, C.K.)

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

Allen, C.K.

Paper	Title	Page
TH6PFP089	Beam Transverse Issues at the SNS Linac	3913
	Y. Zhang, C.K. Allen, J. Galambos, J.A. Holmes, J. G. Wang ORNL, Oak Ridge, Tennessee
	Funding: SNS is managed by UT-Battelle, LLC, under contract DE-AC05-00OR22725 for the U.S. Department of Energy. The Spallation Neutron Source (SNS) linac system is designed to deliver 1 GeV pulsed H^- beams up to 1.56 MW for neutron production. As beam power was increased from 10 kW to 660 kW in less than three years, beam loss in the accelerator systems particularly in the superconducting linac (SCL), became more significant. In the previous studies, unexpected beam loss in the SCL was mainly attributed to longitudinal problems. However, our most recent simulations have focused on beam transverse effects. These include multipole components from magnet imperfections and dipole corrector windings of the linac quadrupoles. The effect of these multipoles coupled with other errors will be discussed.

Paper

Title

Page

TH6PFP089

Beam Transverse Issues at the SNS Linac

3913

Y. Zhang, C.K. Allen, J. Galambos, J.A. Holmes, J. G. Wang
ORNL, Oak Ridge, Tennessee

Funding: SNS is managed by UT-Battelle, LLC, under contract DE-AC05-00OR22725 for the U.S. Department of Energy.

The Spallation Neutron Source (SNS) linac system is designed to deliver 1 GeV pulsed H^- beams up to 1.56 MW for neutron production. As beam power was increased from 10 kW to 660 kW in less than three years, beam loss in the accelerator systems particularly in the superconducting linac (SCL), became more significant. In the previous studies, unexpected beam loss in the SCL was mainly attributed to longitudinal problems. However, our most recent simulations have focused on beam transverse effects. These include multipole components from magnet imperfections and dipole corrector windings of the linac quadrupoles. The effect of these multipoles coupled with other errors will be discussed.