Title :
The design of a liquid lithium lens for a muon collider
Author :
Hassanein, A. ; Norem, J. ; Reed, C. ; Palmer, R. ; Silvestrov, G. ; Vsevolozhskaya, T.A. ; Balbekov, V. ; Geer, S. ; Holtkamp, N. ; Neuffer, D. ; Tollestrup, A. ; Spentzouris, P. ; Lebrun, P.
Author_Institution :
Argonne Nat. Lab., IL, USA
Abstract :
The last stage of ionization cooling for the muon collider requires a multistage liquid lithium lens. This system uses a large (~0.5 MA) pulsed current through liquid lithium to focus the beam while energy loss in the lithium removes momentum which will be replaced by linacs. The beam optics are designed to maximize the 6 dimensional transmission from one lens to the next while minimizing emittance growth. The mechanical design of the lithium vessel is constrained by a pressure pulse due to sudden ohmic heating, and the resulting stress on the Be window. We describe beam optics, the liquid lithium pressure vessel, pump options, power supplies, as well as the overall optimization of the system
Keywords :
beam handling equipment; colliding beam accelerators; particle beam dynamics; particle beam focusing; power supplies to apparatus; pumps; 0.5 MA; 6 dimensional transmission; Be window; beam optics; emittance; focus; ionization cooling; lithium vessel; mechanical design; multistage liquid lithium lens; muon collider; power supplies; pressure pulse; pulsed current; pump; Cooling; Ionization; Lenses; Lithium; Muon colliders; Optical beams; Optical design; Optical pulses; Optical pumping; Stimulated emission;
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.1999.792153
