Title :
Streak camera measurements of the longitudinal distribution with multiple bunches in CESR
Author :
Holtzapple, R. ; Billing, M. ; Hartill, D.
Author_Institution :
Lab. of Nucl. Studies, Cornell Univ., Ithaca, NY, USA
Abstract :
The Cornell Electron-Positron Storage Ring (CESR) has a longitudinal dipole-coupled-bunch instability that limits the total amount of current that can be stored in the ring. As a result, it is one of the major limitations for higher luminosity. This paper reports the results from a streak camera used to measure the dependence of the bunch´s distribution on current and accelerating RF voltage for multiple bunches in CESR, as well as the effects of the longitudinal instability on the bunch distribution. Measurements of the bunch´s longitudinal distribution at CESR, with multiple bunches present in the ring, help give an understanding of the nature of the longitudinal instability
Keywords :
colliding beam accelerators; electron accelerators; particle beam bunching; particle beam diagnostics; particle beam stability; storage rings; streak cameras; CESR; Cornell Electron-Positron Storage Ring; accelerating RF voltage; bunch distribution; longitudinal dipole-coupled-bunch instability; longitudinal distribution; longitudinal instability; multiple bunches; streak camera measurements; Area measurement; Artificial intelligence; Cameras; Data analysis; Gaussian processes; Particle separators; Physics; Positrons; Space vector pulse width modulation; Storage rings;
Conference_Titel :
Particle Accelerator Conference, 1999. Proceedings of the 1999
Conference_Location :
New York, NY
Print_ISBN :
0-7803-5573-3
DOI :
10.1109/PAC.1999.792117
