Array of Metallic Posts: Possible Application for Beam Position Monitoring

It is proposed to utilize the diffraction radiation emitted by an electron traversing an array of metallic posts for deducing the electron's displacement from the symmetry axis of the structure. In other words, it is proposed to use such an array as a beam position monitor (BPM). The structure...

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Bibliographic Details
Main Authors: Banna, Samer, Ludwig, Alon, Schaechter, Levi
Format: Conference Proceeding
Language:English
Subjects:
ALLOYS
BEAM POSITION
ELECTRON BEAMS
ELECTRON DIFFRACTION
ELECTRON EMISSION
MONITORING
PARTICLE ACCELERATORS
TIME RESOLUTION
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Description
Summary:It is proposed to utilize the diffraction radiation emitted by an electron traversing an array of metallic posts for deducing the electron's displacement from the symmetry axis of the structure. In other words, it is proposed to use such an array as a beam position monitor (BPM). The structure consists of a set of N x N metallic vertical posts bounded from above and below by two horizontal metallic plates. The beam position offset from the symmetry axis is determined by measuring the backward radiation emitted by the beam as it traverses the array. The position resolution of the suggested BPM is dominated by the noise level of the detectors used for measuring the radiation, whereas the time resolution is dominated by their operation frequencies.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.2409221