Title :
Design and performance of the LCLS cavity BPM system
Author :
Lill, R. ; Norum, W. ; Morrison, L. ; Sereno, N. ; Waldschmidt, G. ; Walters, D. ; Smith, S. ; Straumann, T.
Author_Institution :
Argonne Nat. Lab., Argonne
Abstract :
In this paper we present the design of the beam position monitor (BPM) system for the LCLS undulator, which features a high-resolution X-band cavity BPM. Each BPM has a TM010 monopole reference cavity and a TM110 dipole cavity designed to operate at a center frequency of 11.384 GHz. The signal processing electronics features a low- noise single-stage three-channel heterodyne receiver that has selectable gain and a phase locking local oscillator. We will discuss the system specifications, design, and prototype test results.
Keywords :
accelerator cavities; beam handling techniques; particle beam diagnostics; phase locked oscillators; prototypes; receivers; wigglers; LCLS cavity BPM system; LCLS undulator; beam position monitor system; dipole cavity; frequency 11.384 GHz; heterodyne receiver; high-resolution X-band cavity; phase locking local oscillator; prototype; signal processing electronics; Band pass filters; Data acquisition; Detectors; Electromagnetic interference; Electron beams; Frequency; Instruments; Local oscillators; Surface impedance; Undulators;
Conference_Titel :
Particle Accelerator Conference, 2007. PAC. IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-0916-7
DOI :
10.1109/PAC.2007.4440010
