Title :
Decay rates and average luminosity in a B-factory
Author :
Braun, H. ; Joho, W. ; Hübner, K.
Author_Institution :
Paul Scherrer Inst., Villigen, Switzerland
Abstract :
The different effects contributing to the decay of the electron and positron beam are discussed, and the coupled differential equations describing this decay in an asymmetric B-factory are given. The effect of the vacuum pressure rise by gas desorption owing to synchrotron radiation is taken into account. These equations can be solved numerically and the average luminosity can be calculated as function of the running time T for data taking the filling time F as a parameter. The proper choice of T for a given F can optimize the average luminosity. Examples relevant for a B-factory in the ISR tunnel at CERN (BFI) are given.<>
Keywords :
electron accelerators; particle beam diagnostics; storage rings; B-factory; CERN; average luminosity; decay rates; electron beam; filling time; gas desorption; positron beam; running time; synchrotron radiation; vacuum pressure rise; Differential equations; Electron beams; Filling; Optical coupling; Particle beam injection; Particle beams; Particle scattering; Physics; Positrons; Synchrotron radiation;
Conference_Titel :
Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-0135-8
DOI :
10.1109/PAC.1991.164227
