Published September 25, 1995
| Version v1
Journal article
Low-energy (5--120 eV) electron-stimulated dissociation of amorphous D2O ice: D(2S), O(3P2,1,0), and O(1D2) yields and velocity distributions
Creators
- 1. Environmental Molecular Sciences Laboratory, Pacific Northwest Laboratory, Richland, Washington 99352 (United States)
Description
Laser resonance enhanced multiphonon ionization spectroscopy was used to measure yields and velocity distributions of the D(2S), O(3P2,1,0), and O(1D2) produced during low-energy (5--120 eV) electron-beam irradiation of amorphous D2O ice. Electron-stimulated dissociation has a very low energy threshold (∼6--7 eV), and the neutral fragments desorb with low kinetic energies (∼60--85 meV) which are independent of the incident electron energy. The data suggest that desorption of neutral fragments results from dissociation of excited states formed directly or via electron-ion recombination
Additional details
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 75
- Journal Issue
- 13
- Journal Page Range
- p. 2606-2609.
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 27055455
- Subject category
- S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
- Descriptors DEI
- AMORPHOUS STATE; DESORPTION; DEUTERIUM COMPOUNDS; DISSOCIATION; ELECTRON BEAMS; EV RANGE; ICE; OXIDES; YIELDS
- Descriptors DEC
- BEAMS; CHALCOGENIDES; ENERGY RANGE; HYDROGEN COMPOUNDS; LEPTON BEAMS; OXYGEN COMPOUNDS; PARTICLE BEAMS