Dissociative electron attachment to CF2Cl2

G. Denifl, D. Muigg, I. Walker, P. Cicman, S. Matejcik, J. D. Skalny, A. Stamatovic, T. D. Märk

Research output: Contribution to journalArticle

Abstract

Using a recently constructed high resolution crossed electron/molecular beam apparatus consisting of a hemispherical electron monochromator and a quadrupole mass spectrometer we have measured the relative production cross sections for Cl- and F- via electron attachment to CF2Cl2. The relative Cl- cross section is placed on an absolute scale by reference to an absolute rate coefficient using a calibration method involving in-tegration of the measured anion signal. The most efficient Cl- production process is at about zero energy and its magnitude is resolution limited. The present high resolution value of 6 × 10-16cm2 compares well with an earlier value reported by Chen and Chantry. A second peak is detected at around 0.8 eV in accordance with some of the earlier beam and swarm measurements. The observed production of F- has an appearance energy of 1.9 eV and the energy of maximum cross section is 3.36 eV, the latter value comparing well with several previous studies.

Original languageEnglish
Pages (from-to)383-392
Number of pages10
JournalCzechoslovak Journal of Physics
Volume49
Issue number3
Publication statusPublished - 1999

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electron attachment
cross sections
high resolution
monochromators
molecular beams
mass spectrometers
energy
quadrupoles
electron beams
anions
coefficients
electrons

Cite this

Denifl, G., Muigg, D., Walker, I., Cicman, P., Matejcik, S., Skalny, J. D., ... Märk, T. D. (1999). Dissociative electron attachment to CF2Cl2. Czechoslovak Journal of Physics, 49(3), 383-392.
Denifl, G. ; Muigg, D. ; Walker, I. ; Cicman, P. ; Matejcik, S. ; Skalny, J. D. ; Stamatovic, A. ; Märk, T. D. / Dissociative electron attachment to CF2Cl2. In: Czechoslovak Journal of Physics. 1999 ; Vol. 49, No. 3. pp. 383-392.
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abstract = "Using a recently constructed high resolution crossed electron/molecular beam apparatus consisting of a hemispherical electron monochromator and a quadrupole mass spectrometer we have measured the relative production cross sections for Cl- and F- via electron attachment to CF2Cl2. The relative Cl- cross section is placed on an absolute scale by reference to an absolute rate coefficient using a calibration method involving in-tegration of the measured anion signal. The most efficient Cl- production process is at about zero energy and its magnitude is resolution limited. The present high resolution value of 6 × 10-16cm2 compares well with an earlier value reported by Chen and Chantry. A second peak is detected at around 0.8 eV in accordance with some of the earlier beam and swarm measurements. The observed production of F- has an appearance energy of 1.9 eV and the energy of maximum cross section is 3.36 eV, the latter value comparing well with several previous studies.",
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Denifl, G, Muigg, D, Walker, I, Cicman, P, Matejcik, S, Skalny, JD, Stamatovic, A & Märk, TD 1999, 'Dissociative electron attachment to CF2Cl2', Czechoslovak Journal of Physics, vol. 49, no. 3, pp. 383-392.

Dissociative electron attachment to CF2Cl2. / Denifl, G.; Muigg, D.; Walker, I.; Cicman, P.; Matejcik, S.; Skalny, J. D.; Stamatovic, A.; Märk, T. D.

In: Czechoslovak Journal of Physics, Vol. 49, No. 3, 1999, p. 383-392.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Dissociative electron attachment to CF2Cl2

AU - Denifl, G.

AU - Muigg, D.

AU - Walker, I.

AU - Cicman, P.

AU - Matejcik, S.

AU - Skalny, J. D.

AU - Stamatovic, A.

AU - Märk, T. D.

PY - 1999

Y1 - 1999

N2 - Using a recently constructed high resolution crossed electron/molecular beam apparatus consisting of a hemispherical electron monochromator and a quadrupole mass spectrometer we have measured the relative production cross sections for Cl- and F- via electron attachment to CF2Cl2. The relative Cl- cross section is placed on an absolute scale by reference to an absolute rate coefficient using a calibration method involving in-tegration of the measured anion signal. The most efficient Cl- production process is at about zero energy and its magnitude is resolution limited. The present high resolution value of 6 × 10-16cm2 compares well with an earlier value reported by Chen and Chantry. A second peak is detected at around 0.8 eV in accordance with some of the earlier beam and swarm measurements. The observed production of F- has an appearance energy of 1.9 eV and the energy of maximum cross section is 3.36 eV, the latter value comparing well with several previous studies.

AB - Using a recently constructed high resolution crossed electron/molecular beam apparatus consisting of a hemispherical electron monochromator and a quadrupole mass spectrometer we have measured the relative production cross sections for Cl- and F- via electron attachment to CF2Cl2. The relative Cl- cross section is placed on an absolute scale by reference to an absolute rate coefficient using a calibration method involving in-tegration of the measured anion signal. The most efficient Cl- production process is at about zero energy and its magnitude is resolution limited. The present high resolution value of 6 × 10-16cm2 compares well with an earlier value reported by Chen and Chantry. A second peak is detected at around 0.8 eV in accordance with some of the earlier beam and swarm measurements. The observed production of F- has an appearance energy of 1.9 eV and the energy of maximum cross section is 3.36 eV, the latter value comparing well with several previous studies.

M3 - Article

VL - 49

SP - 383

EP - 392

JO - Czechoslovak Journal of Physics

JF - Czechoslovak Journal of Physics

SN - 0011-4626

IS - 3

ER -

Denifl G, Muigg D, Walker I, Cicman P, Matejcik S, Skalny JD et al. Dissociative electron attachment to CF2Cl2. Czechoslovak Journal of Physics. 1999;49(3):383-392.