IUPAC - pulse width (09416)

pulse width

in secondary-ion mass spectrometry

https://doi.org/10.1351/goldbook.09416

Full width at half maximum of the time distribution of the pulse of ions generated by a beam chopper and, optionally, the use of beam bunching in secondary ion mass spectrometry.

Note: The pulse width is usually measured using the

H^{+}

ion. The velocity of

H^{+}

ions, for a given extraction field, is larger than that of other ions. The width in time of the

H^{+}

pulse thus provides a more reliable value for the width of the extraction pulse.

Source:
PAC, 2020, 92, 1781. (Glossary of methods and terms used in surface chemical analysis (IUPAC Recommendations 2020)) on page 1843 [Terms] [Paper]

Citation: 'pulse width' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.09416 RIS BibTex EndNote

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pulse width