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Physics

Electron physics

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Displaying 276 - 300 of 349

Ultraviolet Photoabsorption by Halocarbons 11 and 12 from Electron Impact Measurements

October 2, 1975

Author(s)

R Huebner, D L. Bushnell, Robert Celotta, S Mielczarek, C Kuyatt

Observation of Excited States in Ozone Near the Dissociation Limit

September 22, 1975

Author(s)

Nils Swanson, Robert Celotta

Several calculations suggest that the lowest triplet states of ozone lie near the dissociation limit. Using electron energy-loss spectroscopy, we have observed a broad feature beginning at 1.3 eV, with a maximum at 1.65-eV energy loss. This structure is

Apparent Oscillator Strengths for Molecular Oxygen Derived from Electron Energy-Loss Measurements

July 1, 1975

Author(s)

R Huebner, Robert Celotta, S Mielczarek, C Kuyatt

Oscillator strengths for O 2 from 6 to 14 eV are derived from the energy-loss spectrum of 100 eV incident electrons. Integrated f values for the Schumann-Runge bands and continuum, which span four orders of magnitude in intensity, agree well with high

Resonant Structure in Electron Impact Excitation of CO Near Threshold

June 15, 1975

Author(s)

Nils Swanson, Robert Celotta, C Kuyatt, J Cooper

Apparent Oscillator Strengths for Nitrous Oxide

June 1, 1975

Author(s)

R Huebner, Robert Celotta, S Mielczarek, C Kuyatt

Preliminary Report on Electron Energy-Loss Measurements for C Cl F 3 , C Cl 2 F 2 , and C Cl 3 F

June 1, 1975

Author(s)

D L. Bushnell, R Huebner, Robert Celotta, S Mielczarek

A New Form for the Third-Order Asymptotic Aberration Coefficients of Electrostatic Lenses: Application to the Two-Tube Electrostatic Lens

January 1, 1975

Author(s)

D DiChio, S Natali, C Kuyatt

The third-order asymptotic aberration coefficients of round electrostatic lenses are reformulated in terms of the coordinates formed by the projections of the asymptotic incident and final rays onto the reference plane of the lens. In this formulation, all

Electron Excitation of Xenon Near Threshold

December 16, 1974

Author(s)

Nils Swanson, Robert Celotta, C Kuyatt

Dipole Oscillator Strength Distributions Derived for Several Hydrocarbons from Electron Energy Loss Spectra

December 14, 1974

Author(s)

R Huebner, Robert Celotta, S Mielczarek, C Kuyatt

Electron Scattering from NO and N 2 O Below 10 eV

December 1, 1974

Author(s)

A Zecca, I Lazzizzera, Morris Krauss, C Kuyatt

Total electron scattering cross sections for NO and N 2O in the energy range 0-10 eV were obtained from exponential attenuation in a straight-line collision chamber without a confining magnetic field. Good agreement is obtained with previous measurements

Third-Order Asymptotic Aberration Coefficients of Electron Lenses. III. Formulas and results for the two-tube electrostatic lens

October 1, 1974

Author(s)

C Kuyatt, D DiChio, S Natali

The third-order asymptotic aberration coefficients of round electrostatic electron lenses are formulated, following Hawkes, in a form independent of object and aperture positions. Six quantities are sufficient to specify completely the third-order

Apparent Oscillator Strength Distributions Derived from Electron Energy-Loss Measurements: Methane and n-Hexane

July 24, 1974

Author(s)

R Huebner, C H. Fergurson, Robert Celotta, S Mielczarek

Electron Impact Energy Loss Spectra of the 1 2 B 2 - XA 1 Transition of NO 2

July 15, 1974

Author(s)

Morris Krauss, Robert Celotta, S Mielczarek, C Kuyatt

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