Title :
Expected beam performance of the SNS linac
Author :
Stovall, J. ; Billen, J.H. ; Nath, S. ; Takeda, H. ; Young, L.M. ; Jeon, D. ; Crandall, K.R. ; Shafer, R.
Author_Institution :
Los Alamos Nat. Lab., NM, USA
Abstract :
The Spallation Neutron Source (SNS) project is a collaboration among Argonne, Brookhaven, Jefferson, Lawrence Berkeley, Los Alamos and Oak Ridge National Laboratories. The linac, which injects beam into an accumulator ring, is comprised of both normal and superconducting RF (SRF) accelerating structures. Two room-temperature RF structures, a 402.5-MHz drift-tube linac (DTL) and an 805-MHz coupled-cavity linac (CCL), accelerate an H-minus beam from 2.5 MeV to 186 MeV. The SRF linac accelerates the beam to 1 GeV through 81 elliptical, multicell niobium cavities. This paper reviews the linac physics design and its expected beam dynamics performance
Keywords :
accelerator RF systems; accelerator cavities; hydrogen ions; ion accelerators; ion beams; linear accelerators; negative ions; particle beam dynamics; particle beam injection; superconducting cavity resonators; 2.5 to 186 MeV; 293 K; 402.5 MHz; 805 MHz; CCL; DTL; H; H- beam; Nb; SNS linac; Spallation Neutron Source; accumulator ring; beam dynamics; coupled-cavity linac; drift-tube linac; elliptical multicell cavities; expected beam performance; injection; normal RF accelerating structures; room-temperature RF structures; superconducting RF accelerating structures; Acceleration; Collaboration; Laboratories; Linear particle accelerator; Neutrons; Niobium; Optical coupling; Particle beams; Radio frequency; Superconducting devices;
Conference_Titel :
Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-7191-7
DOI :
10.1109/PAC.2001.987538
