Title of article
A fast luminosity monitor system for PEP II
Author/Authors
Ecklund، نويسنده , , Stan and Field، نويسنده , , Clive and Mazaheri، نويسنده , , Gholam، نويسنده ,
Pages
9
From page
68
To page
76
Abstract
The PEP II fast luminosity system provides a measurement of luminosity to the control system with a time constant of 0.3 s and fluctuations less than 0.1% for this interval, adequate for use in feedback systems. Continuous visual updates of luminosity are provided. The alignment of the positron beam at the collision point can also be monitored, and there is a visual display of the luminosity associated with each bunch pair in the machine, sampled approximately every 2 s.
Keywords
Luminosity , Radiative Bhabha
Journal title
Astroparticle Physics
Record number
2014780
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