Equipartitioning in a high current proton linac

Author

Young, Lloyd M.

Author_Institution

Los Alamos Nat. Lab., NM, USA

Volume

2

fYear

1997

fDate

12-16 May 1997

Firstpage

1920

Abstract

The code PARMILA simulates the beam transmission through the Accelerator for the Production of Tritium (APT) linac. The beam is equipartitioned when the longitudinal and transverse temperatures are equal. This paper explores the consequence of equipartitioning in the APT linac. The simulations begin with a beam that starts at the ion-source plasma surface. PARMILA tracks the particles from the RFQ exit through the 1.7-GeV linac. This paper compares two focusing schemes. One scheme uses mostly equal strength quadrupoles. The equipartitioning scheme uses weaker focusing in the high-energy portion of the linac. The RMS beam size with the equipartitioning scheme is larger, but the relative size of the halo is less than in the equal-strength design

Keywords

linear accelerators; particle beam dynamics; particle beam focusing; physics computing; proton accelerators; 1.7 GeV; APT linac; PARMILA; RFQ; RMS beam size; accelerator production of tritium; equipartitioning; focusing; high current proton linac; quadrupoles; Ion accelerators; Linear particle accelerator; Particle accelerators; Particle beams; Particle tracking; Plasma accelerators; Plasma simulation; Plasma temperature; Production; Proton accelerators;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1997. Proceedings of the 1997

Conference_Location

Vancouver, BC

Print_ISBN

0-7803-4376-X

Type

conf

DOI

10.1109/PAC.1997.751061

Filename

751061