J
John H. Beynon
Researcher at Royal Society
Publications - 175
Citations - 3277
John H. Beynon is an academic researcher from Royal Society. The author has contributed to research in topics: Ion & Mass spectrometry. The author has an hindex of 28, co-authored 175 publications receiving 3253 citations.
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The MM-ZAB-2F double-focussing mass spectrometer and mike spectrometer
TL;DR: In this paper, the design and performance of a new commercially available mass spectrometer are described. The instrument incorporates many special features that make it particularly suited for the study of reactions of positive or negative ions in the field-free regions.
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Doubly charged molecular ions of methane
TL;DR: In this article, the double ionization energy of methane was determined to be 30.6 eV, which is in contrast to the previously reported value of 40.7 eV.
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Comparison of photo-excitation of ions and collisional excitation using gases
TL;DR: In this article, the average increases in the internal energy of ions when excited by photons and in collisions with gas molecules have been compared and compared with similar data from photodissociation experiments in which the excitation energy is known to high accuracy.
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The modern mass spectrometer—a complete chemical laboratory
TL;DR: In this paper, various ways in which a contemporary mass spectrometer can be utilized to yield a wealth of information about the compound studied are reviewed using nitrobenzene as an example.
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Photodissociation of mass-selected ions investigated using a modified ZAB—2F spectrometer
TL;DR: In this article, a commercial reversed-geometry mass spectrometer, the ZAB-2F instrument, has been modified for studies of photodissociation of ions, the results demonstrate the control over fragmentation pathways that can be achieved by changing the radiation wavelength and hence the degree of photoexcitation of the reacting ions.