HB2014 - List of Authors (Eshraqi, M.)

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.

TUO1LR03

ESS Linac Design and Cost Optimization as Function of Beam Dynamics

M. Eshraqi
ESS, Lund, Sweden

The energy and power of accelerators used for research are growing to meet the demand of experiments. These increases are usually translated to costlier accelerators and bigger facilities. However, proper handling of beam power in the megawatt range requires a robust design that respects the known rules of thumb in accelerator design to limit the losses at a challenging level of less than one part in million. Traditionally cost increases with power and quality of the accelerator and beam. In this paper, using the ESS linac as an example, this tradition is challenged and ways to reduce the cost while neither quality nor power are compromised are presented.

Slides TUO1LR03 [7.327 MB]

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.

TUO1LR03	ESS Linac Design and Cost Optimization as Function of Beam Dynamics
	M. Eshraqi ESS, Lund, Sweden
	The energy and power of accelerators used for research are growing to meet the demand of experiments. These increases are usually translated to costlier accelerators and bigger facilities. However, proper handling of beam power in the megawatt range requires a robust design that respects the known rules of thumb in accelerator design to limit the losses at a challenging level of less than one part in million. Traditionally cost increases with power and quality of the accelerator and beam. In this paper, using the ESS linac as an example, this tradition is challenged and ways to reduce the cost while neither quality nor power are compromised are presented.
	Slides TUO1LR03 [7.327 MB]