DOI: 10.1063/1.1742323. Pulse Technique for Measurement of the Probability of Formation and Mobility of Negative Ions

Pulse Technique for Measurement of the Probability of Formation and Mobility of Negative Ions

10.1063/1.1742323

Crossref journal-article

AIP Publishing

The Journal of Chemical Physics (317)

Abstract

A new technique for measurement of the attachment coefficient of electrons to molecules has been devised. The technique involves production of a beam of electrons in an attaching gas. The transient current flowing after the initiation and termination of the electron beam is interpreted as a flow of negative ions produced by electron-molecule collisions. Analysis of the transient current which may last several milliseconds yields a value for the mobility of the negative ions thus formed. The ratio of the magnitude of the electron beam current to the negative ion current yields a direct measure of the attachment coefficient. Preliminary results obtained with SF6 show a very large attachment coefficient. Values of α/p (the ratio of attachment coefficient to pressure) are considerably larger in SF6 than those obtained for O2 in studies elsewhere. As might be expected the mobility of negative ions formed in SF6 is much lower than that observed for other gases. This is attributed to the very large collision cross section resulting from (1) the interaction between the negative ion and neutral gas molecules comprising polarization attraction and hard sphere repulsion and (2) resonance or exchange interaction.

Bibliography

McAfee, K. B. (1955). Pulse Technique for Measurement of the Probability of Formation and Mobility of Negative Ions. The Journal of Chemical Physics, 23(8), 1435â1440.

Authors 1

K. B. McAfee (first)

References 21 Referenced 29

{'key': '2024020816131815400_r1'}
10.1103/PhysRev.83.374 / Phys. Rev. (1951)
{'key': '2024020816131815400_r3', 'first-page': '253', 'volume': '7a', 'year': '1952', 'journal-title': 'Z. Naturforsch.'} / Z. Naturforsch. (1952)
{'key': '2024020816131815400_r3a', 'first-page': '1', 'volume': '38', 'year': '1952', 'journal-title': 'Cahiers Phys.'} / Cahiers Phys. (1952)
{'key': '2024020816131815400_r4'}
{'key': '2024020816131815400_r5'}
10.1073/pnas.19.1.68 / Proc. Natl. Acad. Sci. U.S. (1933)
{'key': '2024020816131815400_r7', 'first-page': '297', 'volume': 'B26', 'year': '1934', 'journal-title': 'Z. Physik. Chem.'} / Z. Physik. Chem. (1934)
10.1063/1.1749479 / J. Chem. Phys. (1934)
{'key': '2024020816131815400_r9'}
{'key': '2024020816131815400_r10', 'first-page': '723', 'volume': '9', 'year': '1938', 'journal-title': 'Ann. Phys.'} / Ann. Phys. (1938)
10.1103/PhysRev.91.1 / Phys. Rev. (1953)
10.1063/1.1698559 / J. Chem. Phys. (1953)
10.1103/PhysRev.98.557 / Phys. Rev. (1955)
{'key': '2024020816131815400_r13', 'first-page': '239', 'volume': '8', 'year': '1905', 'journal-title': 'Ann. Chem. Phys.'} / Ann. Chem. Phys. (1905)
10.1080/14786443109461832 / Phil. Mag. (1931)
{'key': '2024020816131815400_r15'}
{'key': '2024020816131815400_r16', 'first-page': '431', 'volume': '187', 'year': '1934', 'journal-title': 'Proc. Roy. Soc. (London)'} / Proc. Roy. Soc. (London) (1934)
10.1021/ja01274a035 / J. Am. Chem. Soc. (1938)
10.1103/PhysRev.84.615 / Phys. Rev. (1951)
{'issue': '5', 'key': '2024020816131815400_r17a', 'first-page': '20', 'volume': '29', 'year': '1954', 'journal-title': 'Bull. Am. Phys. Soc.'} / Bull. Am. Phys. Soc. (1954)

Dates

Type	When
Created	20 years, 4 months ago (April 22, 2005, 1:26 p.m.)
Deposited	1 year, 6 months ago (Feb. 8, 2024, 12:21 p.m.)
Indexed	1 year, 6 months ago (Feb. 9, 2024, 8:23 p.m.)
Issued	70 years, 1 month ago (Aug. 1, 1955)
Published	70 years, 1 month ago (Aug. 1, 1955)
Published Print	70 years, 1 month ago (Aug. 1, 1955)

Funders 0

None

BibTeX

@article{McAfee_1955, title={Pulse Technique for Measurement of the Probability of Formation and Mobility of Negative Ions}, volume={23}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.1742323}, DOI={10.1063/1.1742323}, number={8}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={McAfee, K. B.}, year={1955}, month=aug, pages={1435–1440} }

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