Title :
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
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;
Conference_Titel :
Particle Accelerator Conference, 1999. Proceedings of the 1999
Conference_Location :
New York, NY
Print_ISBN :
0-7803-5573-3
DOI :
10.1109/PAC.1999.792333
