Conceptual design for one megawatt spallation neutron source at Argonne

Author

Cho, Y. ; Bailey, J. ; Brown, B. ; Brumwell, F. ; Carpenter, J. ; Crawford, K. ; Horan, D. ; Jerng, D. ; Kelb, R. ; Knox, A. ; Kustom, R. ; Lessner, E. ; McGhee, D. ; Mills, F. ; Moe, H. ; Nielsen, R. ; Potts, C. ; Rauchas, A. ; Thompson, K.

Author_Institution

Argonne Nat. Lab., IL, USA

fYear

1993

fDate

17-20 May 1993

Firstpage

3757

Abstract

A feasibility study of a spallation neutron source based on a rapid cycling synchrotron which delivers a proton beam of 2 GeV in energy and 0.5 mA time-averaged current at a 30-Hz repetition rate is presented. The lattice consists of 90-degree phase advance FODO cells with dispersion-free straight sections, and has a three-fold symmetry. The ring magnet system will be energized by 20-Hz and 60-Hz resonant circuits to decrease the dB/dt during the acceleration cycle. This lowers the peak acceleration voltage requirement to 130 kV. The single turn extraction system will be used to extract the beam alternatively to two target stations. The first station will operate at 10 Hz for research using long wavelength neutrons, and the second station will use the remaining pulses, collectively, providing 36 neutron beams. The 400-MeV negative-hydrogen-ion injector linac consists of an ion source, rf quadrupole, matching section, 100-MeV drift-tube linac, and a 300-MeV coupled-cavity linac

Keywords

beam handling techniques; neutron sources; nuclear spallation; proton accelerators; synchrotrons; 0.5 mA time-averaged current; 100-MeV drift-tube linac; 2 GeV; 30-Hz repetition rate; 300-MeV coupled-cavity linac; 400-MeV negative-hydrogen-ion injector linac; 90-degree phase advance FODO cells; Argonne; dispersion-free straight sections; long wavelength neutrons; one megawatt spallation neutron source; proton beam; rapid cycling synchrotron; rf quadrupole; ring magnet system; single turn extraction system; three-fold symmetry; Acceleration; Ion sources; Lattices; Linear particle accelerator; Magnetic resonance; Neutrons; Particle beams; RLC circuits; Synchrotrons; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1993., Proceedings of the 1993

Conference_Location

Washington, DC

Print_ISBN

0-7803-1203-1

Type

conf

DOI

10.1109/PAC.1993.309779

Filename

309779