DocumentCode :
2229846
Title :
Drift compression experiments on MBE-4 and related emittance growth phenomena
Author :
Eylon, S. ; Faltens, A. ; Fawley, W. ; Garvey, T. ; Hahn, K. ; Henestroza, E. ; Smith, L.
Author_Institution :
Lawrence Berkeley Lab., California Univ., CA, USA
fYear :
1991
fDate :
6-9 May 1991
Firstpage :
3070
Abstract :
A series of experiments was conducted on the MBE-4 heavy ion accelerator in which a velocity tilt was placed on the beam in the first accelerating section beyond the injector, followed by drift compression over the remaining 11 m. Depending upon the magnitude of the velocity tilt and the accompanying mismatch in the focusing lattice, emittance growth was observed, manifested by ´butterfly´ shapes in x-x´ phase space. A discussion is presented of various analytical limits on ion beam compression, and these are related to these experiments and also to a driver for a heavy ion fusion reactor. Also presented are numerical simulations which are used to investigate various aspects of compression and consequent emittance growth.<>
Keywords :
collective accelerators; ion accelerators; particle beam diagnostics; MBE-4; drift compression; driver; emittance growth phenomena; focusing lattice; heavy ion accelerator; heavy ion fusion reactor; ion beam compression; velocity tilt; Acceleration; Apertures; Electrostatics; Energy resolution; Lattices; Molecular beam epitaxial growth; Particle beams; Pulse compression methods; Timing; Voltage;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-0135-8
Type :
conf
DOI :
10.1109/PAC.1991.165190
Filename :
165190
Link To Document :
بازگشت