Recent developments in the design of the NLC positron source

Author

Kotserogluo, T. ; Bharadwaj, V. ; Clendenin, J.E. ; Ecklund, S. ; Frisch, J. ; Krejcik, P. ; Kulikov, A.V. ; Liu, J. ; Maruyama, T. ; Millage, K.K. ; Mulhollan, G. ; Nelson, W.K. ; Schultz, D.C. ; Sheppard, J.C. ; Turner, J. ; van Bibber, K. ; Flottmann,

Author_Institution

Linear Accel. Center, Stanford Univ., CA, USA

Volume

5

fYear

1999

fDate

1999

Firstpage

3450

Abstract

Recent developments in the design of the Next Linear Collider (NLC) positron source based on updated beam parameters are described. The unpolarized NLC positron source consists of a dedicated 6.2 GeV S-band electron accelerator, a high-Z positron production target, a capture system and an L-band positron linac. The 1998 failure of the SLC target which is currently under investigation may lead to a variation of the target design. Progress towards a polarized positron source is also presented. A moderately polarized positron beam colliding with a highly polarized electron beam results in an effective polarization large enough to explore new physics at NLC. One of the schemes towards a polarized positron source incorporates a polarized electron source, a 50 MeV electron accelerator, a thin target for positron production and a new capture system optimized for high-energy small angular divergence positrons

Keywords

electron accelerators; linear colliders; positron sources; 50 MeV; 6.2 GeV; L-band positron linac; NLC positron source design; Next Linear Collider; S-band electron accelerator; polarized positron source; Colliding beam devices; Electron accelerators; Electron beams; Electron sources; L-band; Linear particle accelerator; Physics; Polarization; Positrons; Production systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1999. Proceedings of the 1999

Conference_Location

New York, NY

Print_ISBN

0-7803-5573-3

Type

conf

DOI

10.1109/PAC.1999.792333

Filename

792333