Title :
Performance and operational experience of the LEP synchrotron light telescopes
Author :
Burtin, G. ; Colchester, R.J. ; Gras, J.J. ; Jung, R. ; Vouillot, J.M.
Author_Institution :
CERN, Geneva, Switzerland
Abstract :
The experience and performance over the past three and a half years of operation is reported. The dynamic range of the monitor has been increased by an improved cooling of the CCD chip with the help of Peltier cells. The contributions from the diffraction and the depth of field have been evaluated with precision in order to estimate the beam emittances. Comparisons and cross calibrations with the wire scanners have been started. A video frame grabber and fast projection calculation for real time beam size display has been implemented
Keywords :
CCD image sensors; computerised monitoring; electron accelerators; particle beam diagnostics; physics computing; real-time systems; storage rings; synchrotron radiation; synchrotrons; CCD chip; LEP synchrotron light telescopes; Peltier cells; beam emittance; diffraction; fast projection calculation; field depth; real time beam size display; video frame grabber; wire scanners; Charge coupled devices; Cooling; Dark current; Diffraction; Dynamic range; Frequency; Monitoring; Synchrotrons; Telescopes; Temperature;
Conference_Titel :
Particle Accelerator Conference, 1993., Proceedings of the 1993
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-1203-1
DOI :
10.1109/PAC.1993.309367
