Stopping power of liquid water for low-energy electrons

Journal Article · Fri Jan 01 00:00:00 EST 1982 · Radiat. Res.; (United States)

DOI:https://doi.org/10.2307/3575681· OSTI ID:5782281

Ashley, J C

The dielectric function epsilon(q,..omega..) for liquid water is determined from an insulator model with parameters fixed by available optical data. Ionization of the oxygen K shell is described by generalized oscillator strengths. This model dielectric function is used to calculate the stopping power of liquid water for electrons with energies from 10 eV to 10 keV. The results agree well in the common energy range with an existing tabulation for 256 eV less than or equal to E less than or equal to 10.2 MeV and with Bethe-theory predictions down to 200 eV. The peak in stopping power at approx.25% lower than the predictions of R. H. Ritchie, R. N. Hamm, J.E. Turner, and H. A. Wright (in Proceedings, Sixth Symposium on Microdosimetry, Brussels, Belgium (J. Booz and H. G. Ebert, Eds.), pp. 345-354, Commission of the European Communities, Harwood, London, 1978 (EUR 6064 d-e-f)).

• Research Organization: Oak Ridge National Lab., TN
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 5782281
• Journal Information: Radiat. Res.; (United States), Vol. 89:1
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ELECTRONS
BIOLOGICAL SHIELDING
WATER
DIELECTRIC PROPERTIES
BIOLOGICAL RADIATION EFFECTS
LIMITERS
STOPPING POWER
BIOLOGICAL EFFECTS
ELECTRICAL PROPERTIES
ELEMENTARY PARTICLES
FERMIONS
HYDROGEN COMPOUNDS
LEPTONS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RADIATION EFFECTS
SHIELDING
654002* - Radiation & Shielding Physics- Shielding Calculations & Experiments- (-1987)