Ionization of water and carbon dioxide molecules by electron impact near threshold

✍ Scribed by A.N. Zavilopulo; F.F. Chipev; O.B. Shpenik

• Publisher: Elsevier Science
• Year: 2005
• Tongue: English
• Weight: 130 KB
• Volume: 233
• Category: Article
• ISSN: 0168-583X
• DOI: 10.1016/j.nimb.2005.03.125

✦ Synopsis

A measurement technique is described and relative cross-sections for direct and dissociative ionization of H 2 O and CO 2 molecules by electron impact near the threshold are obtained. The experiment is performed by a setup with mass separation of the ions by a monopole mass spectrometer and their detection by a secondary electron multiplicator. The energy dependencies of the cross-sections for the formation of the main molecule ions and fragment ions resulting from dissociation are given in the incident electron energy range from 7 to 35 eV.