Higher-order Z/sub 1/ effects and effects of screening by bound K electrons on the electronic stopping of channeled ions

Journal Article · Mon May 16 04:00:00 EDT 1977 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.38.1145· OSTI ID:7312942

Datz, S; Gomez del Campo, J; Dittner, P F; Miller, P D; Biggerstaff, J A

The stopping power in )111) Au for channeling ions which have not changed charge has been measured for bare nuclei for Z = 1 - 5 at 3.5 MeV/amu, and for ions bearing 0, 1, and 2 bound electrons for Z/sub 1/ = 1 - 9 at 2 MeV/amu. An effective screening of approx.0.9e per electron is obtained. For the bare nculei, deviations from simple Z/sub 1/ /sup 2/ scaling are reported. At 2 MeV/amu an increase of 3.5% in S/Z/sub 1/ /sup 2/ is seen from H to He, 3% from He to Li; but no differences are seen from Z/sub 1/ = 5 - 9. However, at 3.5-MeV/amu deviations of as much as 20% per Z/sub 1/ are observed.

• Research Organization: Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830
• OSTI ID: 7312942
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 38:20; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

640304 -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
654001* -- Radiation & Shielding Physics-- Radiation Physics
Shielding Calculations & Experiments
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
ATOMIC IONS
BEAMS
BORON IONS
CARBON IONS
CHANNELING
CHARGED PARTICLES
COLLISIONS
ELEMENTS
ENERGY LOSSES
ENERGY RANGE
ENERGY SPECTRA
FLUORINE IONS
GOLD
HELIUM IONS
HYDROGEN IONS
ION BEAMS
ION CHANNELING
ION COLLISIONS
ION-ATOM COLLISIONS
IONS
LITHIUM IONS
METALS
MEV RANGE
MEV RANGE 01-10
NITROGEN IONS
NUCLEAR SCREENING
SCREENING
SPECTRA
STOPPING POWER
TRANSITION ELEMENTS