Proton-stopping power of argon, krypton, and xenon

Journal Article · Sat Oct 01 04:00:00 EDT 1983 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.28.2096· OSTI ID:5454221

McGuire, E J

Parameters for the Bethe stopping-power theory for Ar, Kr, and Xe are obtained both via integration over optical oscillator strengths and from explicit plane-wave Born-approximation calculations. The former procedure produces a Bethe mean excitation energy (I) significantly lower than that measured, while the latter procedure produces I values within 10 eV of the measured values for Ar and Kr. For Xe the experimental I value lies midway between the two calculated I values. Inner-shell corrections are obtained from the explicit calculations. The K-shell corrections (C/sub K/) are a factor of 2 larger than those obtained from hydrogenic calculations. The total inner-shell correction ( summation/sub n/l C/sub nl/) is in qualitative agreement for Ar, Kr, and Xe with results from a statistical model. However, the quantitative difference between the two sets of inner-shell corrections leads to significant increases in I values inferred from experimental measurements below 1 MeV proton energy.

• Research Organization: Sandia National Laboratories, Division 1231, P.O. Box 5800, Albuquerque, New Mexico 87185
• OSTI ID: 5454221
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 28:4; 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
ARGON
BARYONS
BORN APPROXIMATION
CHARGED-PARTICLE TRANSPORT
ELECTRONIC STRUCTURE
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
FERMIONS
FLUIDS
GASES
HADRONS
KRYPTON
MEV RANGE
MEV RANGE 01-10
NONMETALS
NUCLEONS
OSCILLATOR STRENGTHS
PROTONS
RADIATION TRANSPORT
RARE GASES
STOPPING POWER
XENON