Low-energy proton stopping power of N2, O2 and water vapor and deviations from Bragg's rule

Technical Report · Sun Jan 01 00:00:00 EST 1984

OSTI ID:6792624

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 N2, O2, 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: National Aeronautics and Space Administration, Hampton, VA (USA). Langley Research Center
• OSTI ID: 6792624
• Report Number(s): N-84-16956
• Resource Relation: Other Information: In Study of Phys. processes for space radiation protection, p. 16, see N--84-16954 07-72
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
NITROGEN
CHARGED-PARTICLE TRANSPORT
OXYGEN
PROTONS
STOPPING POWER
CHEMICAL BONDS
ELECTRONS
KEV RANGE 10-100
KEV RANGE 100-1000
MATHEMATICAL MODELS
MEV RANGE 01-10
RADIATION PROTECTION
WATER VAPOR
WAVE FUNCTIONS
BARYONS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
FERMIONS
FLUIDS
FUNCTIONS
GASES
HADRONS
KEV RANGE
LEPTONS
MEV RANGE
NONMETALS
NUCLEONS
RADIATION TRANSPORT
VAPORS
654001* - Radiation & Shielding Physics- Radiation Physics
Shielding Calculations & Experiments