Analytic expressions for the inelastic scattering and energy loss of electron and proton beams in carbon nanotubes
Journal Article
·
· Journal of Applied Physics
- Medical Physics Laboratory, University of Ioannina Medical School, 45110 Ioannina (Greece)
- Departamento de Fisica-CIOyN, Universidad de Murcia, E-30100 Murcia (Spain)
- Departament de Fisica Aplicada, Universitat d'Alacant, E-03080 Alacant (Spain)
- Nanomedicine Laboratory, Centre for Drug Delivery Research, School of Pharmacy, University of London, London WC1N 1AX (United Kingdom)
We have determined ''effective'' Bethe coefficients and the mean excitation energy of stopping theory (I-value) for multiwalled carbon nanotubes (MWCNTs) and single-walled carbon nanotube (SWCNT) bundles based on a sum-rule constrained optical-data model energy loss function with improved asymptotic properties. Noticeable differences between MWCNTs, SWCNT bundles, and the three allotropes of carbon (diamond, graphite, glassy carbon) are found. By means of Bethe's asymptotic approximation, the inelastic scattering cross section, the electronic stopping power, and the average energy transfer to target electrons in a single inelastic collision, are calculated analytically for a broad range of electron and proton beam energies using realistic excitation parameters.
- OSTI ID:
- 21476451
- Journal Information:
- Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 5 Vol. 108; ISSN JAPIAU; ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
77 NANOSCIENCE AND NANOTECHNOLOGY
APPROXIMATIONS
ASYMPTOTIC SOLUTIONS
BARYONS
BEAMS
CALCULATION METHODS
CARBON
CROSS SECTIONS
DIAMONDS
ELECTRON BEAMS
ELECTRONS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY LOSSES
ENERGY TRANSFER
ENERGY-LEVEL TRANSITIONS
EQUATIONS
EXCITATION
FERMIONS
GRAPHITE
HADRONS
INELASTIC SCATTERING
LEPTON BEAMS
LEPTONS
LOSSES
MATHEMATICAL SOLUTIONS
MINERALS
NANOSTRUCTURES
NANOTUBES
NONMETALS
NUCLEON BEAMS
NUCLEONS
PARTICLE BEAMS
PROTON BEAMS
PROTONS
SCATTERING
STOPPING POWER
SUM RULES
APPROXIMATIONS
ASYMPTOTIC SOLUTIONS
BARYONS
BEAMS
CALCULATION METHODS
CARBON
CROSS SECTIONS
DIAMONDS
ELECTRON BEAMS
ELECTRONS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY LOSSES
ENERGY TRANSFER
ENERGY-LEVEL TRANSITIONS
EQUATIONS
EXCITATION
FERMIONS
GRAPHITE
HADRONS
INELASTIC SCATTERING
LEPTON BEAMS
LEPTONS
LOSSES
MATHEMATICAL SOLUTIONS
MINERALS
NANOSTRUCTURES
NANOTUBES
NONMETALS
NUCLEON BEAMS
NUCLEONS
PARTICLE BEAMS
PROTON BEAMS
PROTONS
SCATTERING
STOPPING POWER
SUM RULES