Electron-scattering cross sections and stopping powers in H{sub 2}O
- Centro de Investigaciones Energeticas, Medioambientales y Tecnologicas (CIEMAT), Avenida Complutense 22, 28040 Madrid (Spain)
- Departamento de Fisica Atomica, Molecular y Nuclear, Universidad Complutense de Madrid, Avenida Complutense s.n., 28040 Madrid (Spain)
- Department of Physics and Astronomy, Open University, Walton Hall, Milton Keynes MK7 6AA (United Kingdom)
- Departamento de Fisica, Universidade Nova de Lisboa, 2829-516 Caparica (Portugal)
- Instituto de Matematicas y Fisica Fundamental, Consejo Superior de Investigaciones Cientificas (CSIC), Serrano 113-bis, 28006 Madrid (Spain)
Total electron-H{sub 2}O scattering cross sections have been measured from 50 to 5000 eV with experimental errors of about 5%. Integral elastic and inelastic cross sections have been calculated over a broad energy range (1-10 000 eV) with an optical potential method assuming an independent atom representation. Dipole rotational excitations have also been included in the framework of the first Born approximation. From a detailed evaluation of the present results and their comparison with previous theoretical and experimental data, a set of recommended integral cross sectional data is provided. By combining these data with an average excitation energy derived from the experimental energy loss spectra, the stopping power of electrons in H{sub 2}O has been obtained from 5 to 5000 eV.
- OSTI ID:
- 21028014
- Journal Information:
- Physical Review. A, Vol. 76, Issue 5; Other Information: DOI: 10.1103/PhysRevA.76.052707; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ATOMS
BORN APPROXIMATION
COMPARATIVE EVALUATIONS
CROSS SECTIONS
DIPOLES
ELECTRON COLLISIONS
ELECTRON-MOLECULE COLLISIONS
ELECTRONS
ENERGY-LOSS SPECTROSCOPY
ERRORS
EV RANGE
EXCITATION
INTEGRALS
KEV RANGE 01-10
POTENTIALS
ROTATIONAL STATES
SCATTERING
STOPPING POWER
WATER