Absolute cross sections for dissociative electron attachment to NF3

Nandi, D. ; Rangwala, S.A. ; Kumar, S.V.K. ; Krishnakumar, E. (2001) Absolute cross sections for dissociative electron attachment to NF3 International Journal of Mass Spectrometry, 205 (1-3). pp. 111-117. ISSN 1387-3806

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Official URL: http://doi.org/10.1016/S1387-3806(00)00270-0

Related URL: http://dx.doi.org/10.1016/S1387-3806(00)00270-0

Abstract

Absolute dissociative electron attachment cross sections for the formation of F − , F 2 − , and NF 2 − from NF 3 have been measured in a crossed beams geometry by using the relative flow technique. Discrimination against ions with high kinetic energy are eliminated by employing a pulsed electron beam, pulsed ion extraction and a segmented time of flight mass spectrometer. The cross sections for the F − formation, which is the dominant channel, is found to be almost a factor of 2 larger than what is reported earlier. This descrepancy is explained in terms of the discrimination against ions of appreciable kinetic energy in earlier measurements.

Item Type:Article
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ID Code:121122
Deposited On:12 Jul 2021 04:45
Last Modified:12 Jul 2021 04:45

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