Analyzing gigahertz bunch length instabilities with a digital signal processor | Zendy

R. Stege | Zendy; P. Krejcik | Zendy; M. Minty | Zendy

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Analyzing gigahertz bunch length instabilities with a digital signal processor

Author(s) -

R. Stege,

P. Krejcik,

M. Minty

Publication year - 1992

Publication title -

aip conference proceedings

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.177

H-Index - 75

eISSN - 1551-7616

pISSN - 0094-243X

DOI - 10.1063/1.44340

Subject(s) - sawtooth wave , instability , bandwidth (computing) , converters , transient (computer programming) , radio frequency , digital signal processor , digital signal processing , collider , spectrum analyzer , physics , computer science , signal (programming language) , electronic engineering , electrical engineering , computer hardware , engineering , optics , telecommunications , voltage , nuclear physics , mechanics , programming language , operating system

A bunch length instability, nicknamed the ‘‘sawtooth’’, because of its transient behavior, has been observed at high current running in the Stanford Linear Collider (SLC) electron damping ring. The incompatibility of this instability with successful SLC running prompted its study using a high bandwidth real‐time spectrum analyzer, the Tektronix 3052 digital signal processor (DSP) system. This device has been used to study energy ramping in storage rings but this is the first time it has been used to study transient instability phenomena. It is a particularly valuable tool for use in understanding non‐linear, multiple frequency phenomena. The frequency range of this device has been extended through the use of radio freqeuncy (RF) down converters. This paper describes the measurement setup and presents some of the results.

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