Secondary electron interactions in materials with environmental and radiological interest

• Autorzy: García G. , Blanco F. , de Pablos J. , Pérez J. , Williart A.
• Konferencja: Proceedings of the Low Energy Electron-Molecule Interactions - 2nd International Symposium, August 29th - September 2nd, 2002, Chlewiska/Siedlce, Poland
• Języki publikacji: EN

Abstrakty

EN

Important environmental and radiological applications require energy deposition models including the interactions between the secondary electrons and the atoms or molecules of the medium. In this work we propose a method to obtain reliable cross-section data to be used in these models by combining total and ionisation cross-section measurements with simple calculations of the differential and integral elastic cross sections. The energy loss spectra obtained in this experiment have been also used to derive the stopping power of the considered materials for electrons. Some examples of results for atomic (Xe) and molecular (CF4) targets are presented and discussed in this paper.

Słowa kluczowe

EN

electron scattering; energy deposition

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2003
• Tom: Vol. 48, nr 2
• Strony: 103--107
• Opis fizyczny: Bibliogr. 11 poz., rys.

Twórcy

autor

García G.

• Instituto de Matemáticas y Física Fundamental, Consejo Superior de Investigaciones Científicas, Serrano 121, 28006 Madrid, Spain, Tel.: [phone] ext. 2402, Fax: [phone]

autor

Blanco F.

• Departamento de Física Atómica, Molecular y Nuclear, Universidad Complutense de Madrid, Avenida Complutense s/n, 28040 Madrid, Spain

autor

de Pablos J.

• Departamento de Fusión y Partículas Elementales, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, Avenida Complutense 22, 28040 Madrid, Spain

autor

Pérez J.

• Departamento de Fusión y Partículas Elementales, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, Avenida Complutense 22, 28040 Madrid, Spain

autor

Williart A.

• Departamento de Física de los Materiales, Universidad Nacional de Educación a Distancia, Senda del Rey 9, 28040 Madrid, Spain

Bibliografia

• 1. Blanco F, García G (1999) Improved non-empirical absorption potential for electron scattering at intermediate and high energies: 30−10 000 eV. Phys Lett A 255:147−153
• 2. García G, Blanco F (2001) Energy dependence of the total cross section for electron scattering by N2 and CO molecules at energies above 1 keV. Phys Lett A 279:61−66
• 3. García G, Manero F (1996) Total cross sections for electron scattering by CO2 molecules in the energy range 400−5000 eV. Phys Rev A 53:250−254
• 4. García G, Roteta M, Manero F, Blanco F, Williart A (1999) Electron scattering by Ne, Ar and Kr at intermediate and high energies, 0.5−10 keV. J Phys B: At Mol Opt Phys 31:1783−1794
• 5. GEANT 4 collaboration (http://www.info.cern.ch/asd/geant4/geant4.html)
• 6. Inokuti M (1971) Inelastic collision of fast charged particles with atoms and molecules. The Bethe theory revisited. Rev Mod Phys 43:297−347
• 7. Karwasz GP, Brusa RS, Zecca A (2001) One century of experiments on electron−atom and molecule scattering: a critical review of integral cross sections. II. Polyatomic molecules. Riv Nuovo Cimento 24;1:1−118
• 8. Karwasz GP, Brusa RS, Zecca A (2001) One century of experiments on electron−atom and molecule scattering: a critical review of integral cross sections. III. Hydrocarbons and halides. Riv Nuovo Cimento 24;4:1−101
• 9. Manero F, Blanco F, García G (2002) Electron scattering cross sections of fluoromethanes in the energy range from 0.1 to 10 keV. Phys Rev A 66:032714
• 10. Szmytkowski C, Maciag K, Karwasz G (1996) Absolute electron scattering total cross section measurements for noble gas atoms and diatomic molecules. Phys Scripta 54:271−280
• 11. Zecca A, Karwasz GP, Brusa RS (1996) One century of experiments on electron−atom and molecule scattering: a critical review of integral cross sections. I. Atoms and diatomic molecules. Riv Nuovo Cimento 19;1:1−146