Ranges of /sup 15/N/sup +/ ions in ten metals measured by (p,. cap alpha gamma. ) resonance broadening

Journal Article · Wed Nov 01 00:00:00 EST 1978 · Phys. Rev., B: Solid State; (United States)

DOI:https://doi.org/10.1103/PhysRevB.18.4657· OSTI ID:6481135

Luomajaervi, M; Bister, M; Anttila, A

Concentration distributions of /sup 15/N/sup +/ ions implanted in Al, Ti, Ni, Cu, Zn, Mo, Ag, Ta, W, and Au substrates have been measured in the energy range of 20--100 keV by means of the broadening of the E/sub p/ = 429 keV resonance yield curve from the /sup 15/N(p, ..cap alpha gamma..)/sup 12/C reaction. The implanted-atom concentration was always less than 0.1%. The proton stopping powers needed in the derivation of the ranges were determined experimentally. Proton energy straggling was included in the /sup 15/N range analysis. In comparing the distribution predictions of the Lindhard-Scharff-Schiott (LSS) theory with the experimental results the fraction of /sup 15/N reflections was taken into account with the Monte Carlo calculations. The consistency between theoretical and experimental range values is within 20% limits. Except for the Al and Ti cases, the mean ranges in these polycrystalline targets were found to be larger than those predicted by the LSS theory as being valid for amorphous targets. The merits of the method used, the effects of possible diffusion, and relevance of the range values to Doppler-shift attenuation measurements are discussed.

• Research Organization: Department of Physics, University of Helsinki, Helsinki, Finland
• OSTI ID: 6481135
• Journal Information: Phys. Rev., B: Solid State; (United States), Vol. 18:9
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM
ION CHANNELING
TITANIUM
NICKEL
COPPER
ZINC
MOLYBDENUM
SILVER
TANTALUM
TUNGSTEN
GOLD
ENERGY LOSSES
ENERGY RANGE
KEV RANGE 10-100
NITROGEN IONS
PROTONS
SUBSTRATES
BARYONS
CHANNELING
CHARGED PARTICLES
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
HADRONS
IONS
KEV RANGE
LOSSES
METALS
NUCLEONS
REFRACTORY METALS
TRANSITION ELEMENTS
360104* - Metals & Alloys- Physical Properties