DocumentCode :
840444
Title :
Stable Particle Motion in a Linear Accelerator with Solenoid Focusing
Author :
Wadlinger, E.Alan
Author_Institution :
Los Alamos Scientific Laboratory Los Alamos, NM 87545
Volume :
26
Issue :
3
fYear :
1979
fDate :
6/1/1979 12:00:00 AM
Firstpage :
3511
Lastpage :
3513
Abstract :
We derived the equation governing stable particle motion in a linear ion accelerator containing discrete rf and either discrete or continuous solenoid focusing. We found for discrete solenoid focusing that cos ¿ = (1 + d¿) cos ¿/2 + (l¿/¿ - d¿/21 - ¿¿d2/41) sin ¿/2 ¿ = 1/f and l + 2d = ß¿, where ¿, ¿, f, l, and d are the phase advance per cell, precession angle in the solenoid, focal length of the rf lens, length of the solenoid in one cell, and the drift distance between the center of the rf gap and the effective edge of the solenoid. The relation for a continuous solenoid is found by setting d equal to zero. The boundaries of the stability region for ¿ vs ¿ with fixed l and d are obtained when cos ¿ = +1.
Keywords :
Equations; Ion accelerators; Laboratories; Lenses; Linear accelerators; Linear particle accelerator; Magnetic fields; Solenoids; Spirals; Stability;
fLanguage :
English
Journal_Title :
Nuclear Science, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9499
Type :
jour
DOI :
10.1109/TNS.1979.4330083
Filename :
4330083
Link To Document :
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