Beamstrahlung as a Beam-Beam Diagnostic
Beamstrahlung is the radiation from one beam of charged particles
in a storage ring
caused by its interaction with the electric field of the other beam. This
radiation carries a great deal of information about the structure of
the two beams, and thus can be used to measure, for example, the size
of the beams and how close they come to head on collision. Needless
to say this can be extraordinarily useful in optimizing the luminosity
in colliders. Below is a collection of notes written or co-written by
members of our group on beamstrahlung.
Paper by Bonvicini and Welch on beamstrahlung basics. CLNS 97/1523 and Nuclear Instruments and Methods A418, pages 223-232 (1998).
Note by Bonvicini on useful approximations. Also CBN 98-12.
Note by graduate student Gang Sun on the design of a beamstrahlung
optical system at CESR. Also CBN 98-13.
Paper by Bonvicini, Cinabro, and undergraduate student Eric Luckwald
on using the beamstrahlung signal for measurements of beam-beam
parameters. Also Phyical Review E 59, pages 4584-4593 (1999).
Summer report by Wayne State undergraduate
Nathan Detgen-Merril on background sources and a refinement of the detector