Mechanical design of the SNS MEBT

Author

Oshatz, D. ; DeMell, A. ; Doolittle, L. ; Luft, P. ; Staples, J. ; Zachoszcz, A.

Author_Institution

Lawrence Berkeley Nat. Lab., CA, USA

Volume

2

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

1574

Abstract

The Lawrence Berkeley National Laboratory (LBNL) is presently designing and building the 2.5 MeV front end for the Spallation Neutron Source (SNS). The front end includes a medium-energy beam transport (MEBT) that carries the 2.5 MeV, 38 mA peak current, H^- beam from the radiofrequency quadrupole (RFQ) to the drift tube linac (DTL) through a series of 14 electromagnetic quadrupoles, four rebuncher cavities, and a fast traveling wave chopping system. The beamline contains numerous diagnostic devices, including stripline beam position and phase monitors (BPM), toroid beam current monitors (BCM), and beam profile monitors. Components are mounted on three rafts that are separately supported and aligned. The large number of beam transport and diagnostic components in the 3.6 meter-long beam-line necessitates an unusually compact mechanical design

Keywords

accelerator RF systems; accelerator cavities; accelerator magnets; beam handling equipment; electromagnets; linear accelerators; neutron sources; particle beam bunching; particle beam diagnostics; particle beam dynamics; proton beams; 2.5 MeV; 3.6 m; 38 mA; BCM; BPM; LBNL; Lawrence Berkeley National Laboratory; RFQ; SNS MEBT; Spallation Neutron Source; beam profile monitors; compact mechanical design; diagnostic devices; drift tube linear accelerator; electromagnetic quadrupoles; fast traveling wave chopping system; front end; hydrogen^- beam; medium-energy beam transport; peak current; phase monitors; radiofrequency quadrupole; rebuncher cavities; stripline beam position monitors; toroid beam current monitors; Acceleration; Boring; Choppers; Electromagnetic scattering; Laboratories; Lattices; Linear particle accelerator; Magnetic separation; Neutrons; Particle beams;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001

Print_ISBN

0-7803-7191-7

Type

conf

DOI

10.1109/PAC.2001.986752

Filename

986752