2 papers

title:	Beam-cavity interaction in electron storage rings
format:	unknown
year:	1975
4 authors:	Keil, E. | C. Pellegrini | Turrin, A. | Sessler, M.
abstract:	A formal expression is obtained for the energy loss per turn, of a rigid bunch of electrons, to a closed cylindrical cavity with quality factor Q. The expression is valid provided the diameter of the entrance and exit ports for the beam are small compared to the bunch length. The effect of the ports is studied in an independent computational method. The energy loss is numerically evaluated for a range of parameters of interest to electron storage rings. (13 References).
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title:	Diffraction radiation defocussing of an electron ring
format:	unknown
year:	1971
3 authors:	Keil, E. | C. Pellegrini | Sessler, A. M.
abstract:	The influence upon axial stability in an electron ring of the diffraction radiation reaction force, generated by a ring moving in an acceleration column, is calculated theoretically. A stability criterion is obtained, and numerical examples show that the criterion is not an important constraint upon the choice of parameters or the operation of an electron ring accelerator.
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