Title :
A precision synchrotron radiation detector using phosphorescent screens
Author :
Jung, C.K. ; Butler, J. ; Lateur, M. ; Nash, J. ; Tinsman, J. ; Wormser, G. ; Levi, M. ; Rouse, F.
Author_Institution :
Linear Accel. Center, Stanford Univ., CA, USA
fDate :
8/1/1990 12:00:00 AM
Abstract :
A precision detector to measure synchrotron radiation beam positions is described. It has been designed and installed as part of the beam energy spectrometers at the Stanford Linear Collider (SLC). The distance between pairs of synchrotron radiation beams is measured absolutely to better than 28 μm on a pulse-to-pulse basis. This contributes less than 5 MeV to the error in measuring SLC beam energies (approximately 50 GeV). A system of high-resolution video cameras viewing precisely aligned fiducial wire arrays overlaying phosphorescent screens has achieved this accuracy
Keywords :
measurement errors; position sensitive particle detectors; television applications; video cameras; 28 mum; 5 MeV; 50 GeV; SLC; beam energies; beam energy spectrometers; beam positions; high-resolution video cameras; phosphorescent screens; synchrotron radiation detector; Cameras; Colliding beam devices; Energy measurement; Phosphorescence; Position measurement; Pulse measurements; Radiation detectors; Spectroscopy; Synchrotron radiation; Wire;
Journal_Title :
Nuclear Science, IEEE Transactions on
