DocumentCode :
1964733
Title :
Electron beam depolarization in a damping ring
Author :
Minty, M.
Author_Institution :
Linear Accel. Center, Stanford Univ., CA, USA
fYear :
1993
fDate :
17-20 May 1993
Firstpage :
447
Abstract :
Depolarization of a polarized electron beam injected into a damping ring is analyzed by extending calculations conventionally applied to proton synchrotrons. Synchrotron radiation in an electron ring gives rise to both polarizing and depolarizing effects. In a damping ring, the beam is stored for a time much less than the time for self polarization. Spin flip radiation may therefore be neglected. Synchrotron radiation without spin flips, however, must be considered as the resonance strength depends on the vertical betatron oscillation amplitude which changes as the electron beam is radiation damped. An expression for the beam polarization at extraction is derived which takes into account radiation damping. The results are applied to the electron ring at the Stanford Linear Collider and are compared with numerical matrix formalisms
Keywords :
particle beam diagnostics; polarimetry; synchrotrons; SLC; Stanford Linear Collider; damping ring; electron beam depolarization; electron synchrotron; radiation damping; synchrotron radiation; vertical betatron oscillation amplitude; Damping; Electron beams; Equations; Linear accelerators; Magnetic fields; Particle beam injection; Polarization; Protons; Resonance; Synchrotron radiation;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Particle Accelerator Conference, 1993., Proceedings of the 1993
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-1203-1
Type :
conf
DOI :
10.1109/PAC.1993.308886
Filename :
308886
Link To Document :
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