Abstract
This chapter discusses ion cyclotron resonance (ICR) signal generation, noise generation in ICR spectrometers, and ICR mass resolution. The quotient of the ICR signal strength and the ICR noise level is the ICR sensitivity. Many important aspects of the above topics have been separately discussed in the literature. This chapter is an attempt to discuss the topics in a coherent manner and to describe additional aspects of the topics which have heretofor been ignored. In the following sections, the origin of ICR signals is discussed in terms of a signal model which accounts for the properties of the signal. The time dependence of the ICR signal is then shown to be related to the ICR resolution. Many factors which affect the time dependence of the ICR signal are discussed and the relative importance of the factors is assessed. The origin of electronic noise in ICR spectrometers is also discussed.KeywordsMagnetic Field StrengthCyclotron FrequencyMagnetic Field InhomogeneityCyclotron MotionElectric MonopoleThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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