Beam dump optics for the spallation neutron source

Author

Raparia, D. ; Lee, Y.Y. ; Wei, J. ; Henderson, S.

Author_Institution

Brookhaven Nat. Lab., Upton, NY

Volume

5

fYear

2003

fDate

12-16 May 2003

Firstpage

3416

Lastpage

3418

Abstract

The Spallation Neutron Source accelerator complex will have three beam dumps for beam tuning and for the collection of controlled losses. The linac and extraction beam dumps will be used for beam tuning purposes and are designed for 7.5 kW of beam power. The optics issues for these dumps are i) the beam size at the vacuum window which is near the last quadrupole and ii) guaranteeing the beam size at the dump due to multiple scattering in the presence of potentially large variations in the linac and accumulator ring emittances. The injection dump will collect the partially stripped H⁰ ions as well as H^- ions which have miss the foil and is designed to absorb up to 200 kW of beam power. The closed orbit for these ions are much different in the injection area and have to be collected in the injection beam dump with a certain beam size

Keywords

beam handling equipment; linear accelerators; particle beam dynamics; particle beam extraction; particle beam injection; particle optics; proton accelerators; 7.5 kW; H^- ions; H⁰ ions; Spallation Neutron Source accelerator complex; accumulator ring emittances; beam dump optics; beam tuning; injection beam dump; linac; multiple scattering; vacuum window; Electrons; Ion accelerators; Laboratories; Linear particle accelerator; Neutrons; Optical beams; Optical tuning; Particle beams; Particle scattering; Protons;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2003. PAC 2003. Proceedings of the

Conference_Location

Portland, OR

ISSN

1063-3928

Print_ISBN

0-7803-7738-9

Type

conf

DOI

10.1109/PAC.2003.1289933

Filename

1289933