Charge-equilibrium and radiation of low-energy cosmic rays passing through interstellar medium
Technical Report
·
OSTI ID:6622458
The charge equilibrium and radiation of an oxygen and an iron beam in the MeV per nucleon energy range, representing a typical beam of low-energy cosmic rays passing through the interstellar medium, is considered. Electron loss of the beam has been taken into account by means of the first Born approximation to allow for the target atom to remain unexcited, or to be excited to all possible states. Electron capture cross sections have been calculated by means of the scaled Oppenheimer-Brinkman-Kramers approximation, taking into account all atomic shells of the target atoms. Radiation of the beam due to electron capture into the excited states of the ion, collisional excitation and collisional inner-shell ionization of the ions has been considered. Effective X-ray production cross sections and multiplicities for the most energetic X-ray lines emitted by the Fe and O beams have been calculated.
- Research Organization:
- National Aeronautics and Space Administration, Greenbelt, MD (USA). Goddard Space Flight Center
- OSTI ID:
- 6622458
- Report Number(s):
- N-78-15984; NASA-TM-78078; X-624-77-276
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
640101* -- Astrophysics & Cosmology-- Cosmic Radiation
640304 -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
ATOMIC IONS
CAPTURE
CHARGED PARTICLES
COLLISIONS
COSMIC RADIATION
COSMIC RAY PROPAGATION
CROSS SECTIONS
ELECTROMAGNETIC RADIATION
ELECTRON CAPTURE
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EXCITATION
INNER-SHELL IONIZATION
INTERSTELLAR SPACE
IONIZATION
IONIZING RADIATIONS
IONS
IRON IONS
MEV RANGE
MEV RANGE 10-100
MULTIPLICITY
OXYGEN IONS
RADIATIONS
SIMULATION
SPACE
X RADIATION
640304 -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
ATOMIC IONS
CAPTURE
CHARGED PARTICLES
COLLISIONS
COSMIC RADIATION
COSMIC RAY PROPAGATION
CROSS SECTIONS
ELECTROMAGNETIC RADIATION
ELECTRON CAPTURE
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EXCITATION
INNER-SHELL IONIZATION
INTERSTELLAR SPACE
IONIZATION
IONIZING RADIATIONS
IONS
IRON IONS
MEV RANGE
MEV RANGE 10-100
MULTIPLICITY
OXYGEN IONS
RADIATIONS
SIMULATION
SPACE
X RADIATION