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 04:00:00 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), Journal Name: Phys. Rev. A; (United States) Vol. 29:6; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

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