Ion detection by Fourier transform ion cyclotron resonance: the effect of initial radial velocity on the coherent ion packet
| Autor: | Curtiss D. Hanson, David H. Russell, Eric L. Kerley, Mauro E. Castro |
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| Rok vydání: | 1989 |
| Předmět: |
Ions
Fourier Analysis Chemistry Analytical chemistry Mass Spectrometry Fourier transform spectroscopy Fourier transform ion cyclotron resonance Analytical Chemistry Ion symbols.namesake Electromagnetic Fields Fourier transform Physics::Plasma Physics Electric field symbols Radio frequency Particle Accelerators Atomic physics Excitation Ion cyclotron resonance |
| Zdroj: | Analytical Chemistry. 61:2040-2046 |
| ISSN: | 1520-6882 0003-2700 |
| DOI: | 10.1021/ac00193a008 |
| Popis: | Ion detection by Fourier transform ion cyclotron resonance (FT-ICR) is accomplished by observing a coherent ion packet produced from an initially random ensemble of ions. The coherent packet is formed by excitation with a resonant oscillating electric field. Ions that are out of phase with the applied radio frequency (rf) electric field experience a continuous misalignment of the electric field vector. The misalignment creates a net force of the electric field perpendicular to ion motion. The perpendicular component of the rf electric field creates a frequency shift resulting in phase synchronization of the ion ensemble. The phase coherence of the ion packet affects both the sensitivity and the resolution of FT-ICR. |
| Databáze: | OpenAIRE |
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