HB2014 - List of Authors (Thomsen, H.D.)

Paper	Title	Page
MOPAB18	An ESS Linac Collimation Study	62
	R. Miyamoto, M. Eshraqi ESS, Lund, Sweden H.D. Thomsen ISA, Aarhus, Denmark
	The European Spallation Source (ESS) is planned in Lund, Sweden, and will be a neutron source based on a proton linac with an unprecedented 5 MW beam power. Mitigation of beam losses is the most crucial challenge in beam physics for such a high power proton linac and collimation systems are planned in sections of the medium and high energy beam transport (MEBT and HEBT). A preliminary study of the collimation systems was presented in the previous time of this workshop but the linac design went through a significant revision since then. The system to expand the beam for the neutron target, located in the HEBT, was changed from one based on nonlinear magnets to a raster system and this change particularly had a significant impact on the demand on the collimation systems. This paper presents an updated beam dynamics study of the collimation systems for the present layout of the ESS Linac.

Paper

Title

Page

An ESS Linac Collimation Study

62

R. Miyamoto, M. Eshraqi
ESS, Lund, Sweden
H.D. Thomsen
ISA, Aarhus, Denmark

The European Spallation Source (ESS) is planned in Lund, Sweden, and will be a neutron source based on a proton linac with an unprecedented 5 MW beam power. Mitigation of beam losses is the most crucial challenge in beam physics for such a high power proton linac and collimation systems are planned in sections of the medium and high energy beam transport (MEBT and HEBT). A preliminary study of the collimation systems was presented in the previous time of this workshop but the linac design went through a significant revision since then. The system to expand the beam for the neutron target, located in the HEBT, was changed from one based on nonlinear magnets to a raster system and this change particularly had a significant impact on the demand on the collimation systems. This paper presents an updated beam dynamics study of the collimation systems for the present layout of the ESS Linac.