Effects of transverse beam size in beam position monitors.
- Sergey
The fields produced by a long beam with a given transverse charge distribution in a homogeneous vacuum chamber are studied. Signals induced by the displaced finite-size beam on electrodes of a beam position monitor (BPM) are calculated and compared to those from a pencil beam. The non-linearities and corrections to BPM signals due to a finite transverse beam size are calculated for an arbitrary chamber cross section. Simple analytical expressions are given for a few particular transverse distributions of the beam current in a circular or rectangular chamber. Of particular interest is a general proof that in an arbitrary homogeneous chamber the beam-size corrections vanish for any axisymmetric beam current distribution.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 975527
- Report Number(s):
- LA-UR-01-3180; TRN: US1006730
- Resource Relation:
- Journal Volume: 2; Conference: Submitted to: PAC (Particle Accelerator Conference) 2001, June 18-23, 2001
- Country of Publication:
- United States
- Language:
- English
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