New absolute cross sections for dissociative electron attachment to HCCCN (cyanoacetylene or propiolonitrile) in the range of 0-10 eV electron energy are presented here, which have been determined from a new analysis of previously reported data (Graupner et al 2006 New J. Phys. 8 117). The highest cross sections are observed for the formation of CN- at 5.3 eV and CCCN- at 5.1 eV; approximately 0.06 angstrom(2) and 0.05 angstrom(2) respectively. As part of the re-analysis, it was necessary to determine absolute cross sections for electron-impact ionization of HCCCN with the binary-encounter Bethe method. These electron-impact ionization absolute cross sections for HCCCN are also presented here; the maximum value was found to be similar to 6.6 angstrom(2) at similar to 80 eV.
机构:
Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2525210, Japan
3-16-3 Miwamidoriyama, Machida, Tokyo 1950055, JapanInst Space & Astronaut Sci, Sagamihara, Kanagawa 2525210, Japan