Electron-impact ionization of the SiCl3 radical

M. Gutkin, J. M. Mahoney, V. Tarnovsky, H. Deutsch, K. Becker

Research output: Contribution to journalArticle

Abstract

We describe improvements to the fast-beam apparatus that has been used extensively for electron-impact ionization cross section measurements for atoms, molecules, and free radicals in our group for the past 15 years. A high-intensity, dispenser-type electron emitter capable of producing an electron beam of more than 2 mA at electron energies above 50 eV is used instead of a conventional indirectly heated, oxide-coated electron source. We also replaced the channel electron multiplier by a position-sensitive, triple multi-channel plate ion detector. Experiments using well-established ionization cross sections in conjunction with extensive ion trajectory simulations were carried out to verify the performance of the modified fast-neutral-beam apparatus. This apparatus was subsequently employed in the measurement of absolute partial cross sections for the formation of various singly charged positive ions produced by electron impact on SiCl3 for impact energies from threshold to 200 eV. A comparison with calculations and with the previously reported ionization cross section for SiCl4, SiCl2, and SiCl is also made.

Original languageEnglish (US)
Pages (from-to)101-106
Number of pages6
JournalInternational Journal of Mass Spectrometry
Volume280
Issue number1-3
DOIs
StatePublished - Feb 1 2009

Fingerprint

Impact ionization
ionization cross sections
electron impact
ionization
Electrons
dispensers
Ionization
electron sources
microchannel plates
neutral beams
photomultiplier tubes
Ions
Electron multipliers
Dispensers
positive ions
Electron sources
free radicals
ions
emitters
Free radicals

Keywords

  • Cross section measurement
  • Electron-impact ionization
  • Fast-beam technique
  • Silicon chloride

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Condensed Matter Physics
  • Instrumentation

Cite this

Electron-impact ionization of the SiCl3 radical. / Gutkin, M.; Mahoney, J. M.; Tarnovsky, V.; Deutsch, H.; Becker, K.

In: International Journal of Mass Spectrometry, Vol. 280, No. 1-3, 01.02.2009, p. 101-106.

Research output: Contribution to journalArticle

Gutkin, M. ; Mahoney, J. M. ; Tarnovsky, V. ; Deutsch, H. ; Becker, K. / Electron-impact ionization of the SiCl3 radical. In: International Journal of Mass Spectrometry. 2009 ; Vol. 280, No. 1-3. pp. 101-106.
@article{4ace896e38e24c5cb549120cc2fa3c8f,
title = "Electron-impact ionization of the SiCl3 radical",
abstract = "We describe improvements to the fast-beam apparatus that has been used extensively for electron-impact ionization cross section measurements for atoms, molecules, and free radicals in our group for the past 15 years. A high-intensity, dispenser-type electron emitter capable of producing an electron beam of more than 2 mA at electron energies above 50 eV is used instead of a conventional indirectly heated, oxide-coated electron source. We also replaced the channel electron multiplier by a position-sensitive, triple multi-channel plate ion detector. Experiments using well-established ionization cross sections in conjunction with extensive ion trajectory simulations were carried out to verify the performance of the modified fast-neutral-beam apparatus. This apparatus was subsequently employed in the measurement of absolute partial cross sections for the formation of various singly charged positive ions produced by electron impact on SiCl3 for impact energies from threshold to 200 eV. A comparison with calculations and with the previously reported ionization cross section for SiCl4, SiCl2, and SiCl is also made.",
keywords = "Cross section measurement, Electron-impact ionization, Fast-beam technique, Silicon chloride",
author = "M. Gutkin and Mahoney, {J. M.} and V. Tarnovsky and H. Deutsch and K. Becker",
year = "2009",
month = "2",
day = "1",
doi = "10.1016/j.ijms.2008.07.032",
language = "English (US)",
volume = "280",
pages = "101--106",
journal = "International Journal of Mass Spectrometry",
issn = "1387-3806",
publisher = "Elsevier",
number = "1-3",

}

TY - JOUR

T1 - Electron-impact ionization of the SiCl3 radical

AU - Gutkin, M.

AU - Mahoney, J. M.

AU - Tarnovsky, V.

AU - Deutsch, H.

AU - Becker, K.

PY - 2009/2/1

Y1 - 2009/2/1

N2 - We describe improvements to the fast-beam apparatus that has been used extensively for electron-impact ionization cross section measurements for atoms, molecules, and free radicals in our group for the past 15 years. A high-intensity, dispenser-type electron emitter capable of producing an electron beam of more than 2 mA at electron energies above 50 eV is used instead of a conventional indirectly heated, oxide-coated electron source. We also replaced the channel electron multiplier by a position-sensitive, triple multi-channel plate ion detector. Experiments using well-established ionization cross sections in conjunction with extensive ion trajectory simulations were carried out to verify the performance of the modified fast-neutral-beam apparatus. This apparatus was subsequently employed in the measurement of absolute partial cross sections for the formation of various singly charged positive ions produced by electron impact on SiCl3 for impact energies from threshold to 200 eV. A comparison with calculations and with the previously reported ionization cross section for SiCl4, SiCl2, and SiCl is also made.

AB - We describe improvements to the fast-beam apparatus that has been used extensively for electron-impact ionization cross section measurements for atoms, molecules, and free radicals in our group for the past 15 years. A high-intensity, dispenser-type electron emitter capable of producing an electron beam of more than 2 mA at electron energies above 50 eV is used instead of a conventional indirectly heated, oxide-coated electron source. We also replaced the channel electron multiplier by a position-sensitive, triple multi-channel plate ion detector. Experiments using well-established ionization cross sections in conjunction with extensive ion trajectory simulations were carried out to verify the performance of the modified fast-neutral-beam apparatus. This apparatus was subsequently employed in the measurement of absolute partial cross sections for the formation of various singly charged positive ions produced by electron impact on SiCl3 for impact energies from threshold to 200 eV. A comparison with calculations and with the previously reported ionization cross section for SiCl4, SiCl2, and SiCl is also made.

KW - Cross section measurement

KW - Electron-impact ionization

KW - Fast-beam technique

KW - Silicon chloride

UR - http://www.scopus.com/inward/record.url?scp=58149487804&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=58149487804&partnerID=8YFLogxK

U2 - 10.1016/j.ijms.2008.07.032

DO - 10.1016/j.ijms.2008.07.032

M3 - Article

AN - SCOPUS:58149487804

VL - 280

SP - 101

EP - 106

JO - International Journal of Mass Spectrometry

JF - International Journal of Mass Spectrometry

SN - 1387-3806

IS - 1-3

ER -