Low-energy proton stopping power of N/sub 2/, O/sub 2/, and water vapor, and deviations from Bragg's rule

Journal Article · Fri Jun 01 00:00:00 EDT 1984 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.29.3419· OSTI ID:6667569

Xu, Y J; Khandelwal, G S; Wilson, J W

A modified local-plasma model, based on the works of Lindhard and Winther, and Bethe, Brown, and Walske is established. The Gordon-Kim model for molecular-electron density is used to calculate stopping power of N/sub 2/, O/sub 2/, and water vapor for protons of energy ranging from 40 keV to 2.5 MeV, resulting in good agreement with experimental data. Deviations from Bragg's rule are evaluated and are discussed under the present theoretical model.

• Research Organization: Department of Physics, Old Dominion University, Norfolk, Virginia 23508
• OSTI ID: 6667569
• Journal Information: Phys. Rev. A; (United States), Vol. 29:6
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
NITROGEN
CHARGED-PARTICLE TRANSPORT
OXYGEN
PROTONS
STOPPING POWER
WATER VAPOR
ASYMPTOTIC SOLUTIONS
BRAGG CURVE
ELECTRON DENSITY
KEV RANGE 10-100
KEV RANGE 100-1000
MEV RANGE 01-10
MOLECULES
BARYONS
DIAGRAMS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
FERMIONS
FLUIDS
GASES
HADRONS
KEV RANGE
MEV RANGE
NONMETALS
NUCLEONS
RADIATION TRANSPORT
VAPORS
654001* - Radiation & Shielding Physics- Radiation Physics
Shielding Calculations & Experiments