CERN Accelerating science

Article
Title	Signal Processing for Longitudinal Parameters of the Tevatron Beam
Author(s)	Pordes, Stephen ; Crisp, James L ; Fellenz, Brian ; Flora, Robert H ; Para, Adam ; Tollestrup, Alvin V
Affiliation	(Fermilab, Batavia, Illinois)
Publication	2005
In:	21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.1362
Subject category	Accelerators and Storage Rings
Abstract	The time profiles of the bunches in the Tevatron are obtained by sampling the output of a resistive wall current monitor with a 5GS/s, 2GHz bandwidth, Lecroy 6200 oscilloscope. The techniques for removing the effect of cable dispersion and for extending the dynamic range of the data by splitting the signal and using two input channels at different gains are described. The algorithms for taking these data in the time domain and deriving the momentum spread and longitudinal emittance are also given.