ELASTIC ELECTRON SCATTERING FROM THE MAGNETIC MULTIPOLE DISTRIBUTIONS OF LI6, LI7, BE9, B10, B11 AND N14,

Abstract

The magnetic form factors of the 1 p-shell nuclei Li6, Li7, Be9, B10, B11, N14, were measured by high energy electron scattering at an angle of 180 degrees. Incident electron energies up to 230 MeV were used. Results are interpreted in terms of harmonic oscillator and finite square well shell models. Parameters dependent only on the coupling of the angular momenta in the 1 p-shell may be obtained from the data. They show a general trend from L-S coupling to j-j coupling as the mass number increases, in agreement with calculations of magnetic dipole moments and energy level schemes. The outstanding exception is Li7 whose form factor is accurately described by the extreme independent particle model. (L-S coupling is quite incompatible with the data.) The Li6 results may also be interpreted in terms of an 'alpha plus deuteron' model. Numerical results for the harmonic well strengths are obtained and compare favorably with electron charge scattering values. (Author)

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1965
Accession Number
AD0626217

Entities

People

  • M. R. Yearian
  • R. E. Rand
  • R. Frosch

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Couplings
  • Dipole Moments
  • Electron Energy
  • Electron Scattering
  • Electrons
  • Energy
  • Energy Levels
  • High Energy
  • Magnetic Dipoles
  • Mass Number
  • Scattering

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.
  • Plasma Physics / Magnetohydrodynamics
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.

Technology Areas

  • Microelectronics