Methods of calculating the Barkas-effect correction to Bethe--Bloch stopping power

Journal Article · Fri Jun 01 00:00:00 EDT 1990 · Journal of Applied Physics; (USA)

DOI:https://doi.org/10.1063/1.345094· OSTI ID:6938730

Porter, L E; Lin, H ^[1]

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1. University of Montana, Missoula, Montana 59812 (USA)

The low-velocity Barkas-effect correction term for the Bethe--Bloch stopping-power formula has been calculated with each of the three extant formalisms for targets with atomic numbers from 1 to 18 and for projectile velocities from 0.025{ital c} to 0.3{ital c}. Comparison of each with measurements on aluminum revealed which formalism provided the best fit over three different projectile velocity intervals. The method yielding the generally superior agreement was used to calculate the stopping power of each element (except Li, F, Na, Mg, P, and Cl) for protons and alpha particles with energies between 0.5 and 5.0 MeV. Results corresponded very closely to those of an existing fit to most known experimental data.

• OSTI ID: 6938730
• Journal Information: Journal of Applied Physics; (USA), Journal Name: Journal of Applied Physics; (USA) Vol. 67:11; ISSN 0021-8979; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

654001* -- Radiation & Shielding Physics-- Radiation Physics
Shielding Calculations & Experiments
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA PARTICLES
ALUMINIUM
BARYONS
CHARGED PARTICLES
CHARGED-PARTICLE TRANSPORT
CORRECTIONS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
FERMIONS
HADRONS
KEV RANGE
KEV RANGE 100-1000
METALS
MEV RANGE
MEV RANGE 01-10
NUCLEONS
PROTONS
RADIATION TRANSPORT
STOPPING POWER