Comparison of theoretical models for the electronic stopping power of low-velocity heavy ions. [100-keV /sup 7/Li/sup +/ on Z = 6 to 34 targets and 800-keV /sup 14/N/sup +/ on Z /sup +/ 6 to 52 targets]
Calculations of the electronic stopping power for low-velocity (v < Z/sup 2///sup 3//sub 1/v/sub 0/, v/sub 0/=e/sup 2//h) heavy ions, based upon three models, are performed for two systems for which experimental data are available: 800-keV /sup 14/N/sup +/ ions incident on amorphous solid targets from carbon to tellurium and 100-keV /sup 7/Li/sup +/ ions incident on amorphous targets from carbon to selenium. The results of the models are compared with each other and with the experimental data. The models are found to offer qualitatively better fits to the oscillatory experimental data than the smooth curves of the Lindhard-Scharff theory, with a particular modification of the Firsov theory favored for predictive calculations. All the models, as implemented here, require a parameter to be determined by fitting the calculated curves to the experimental points.
- Research Organization:
- Naval Surface Weapons Center, White Oak, Silver Spring, Maryland 20910
- OSTI ID:
- 7097078
- Journal Information:
- Phys. Rev., A; (United States), Vol. 16:2
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
LITHIUM IONS
ENERGY LOSSES
RANGE
NITROGEN IONS
AMORPHOUS STATE
ATOMIC NUMBER
CHARGED-PARTICLE TRANSPORT
HEAVY IONS
KEV RANGE 100-1000
LITHIUM 7
NITROGEN 14
STOPPING POWER
ALKALI METAL ISOTOPES
ATOMIC IONS
CHARGED PARTICLES
ENERGY RANGE
IONS
ISOTOPES
KEV RANGE
LIGHT NUCLEI
LITHIUM ISOTOPES
NITROGEN ISOTOPES
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
RADIATION TRANSPORT
STABLE ISOTOPES
654001* - Radiation & Shielding Physics- Radiation Physics
Shielding Calculations & Experiments