Charge Distributions of Oxygen and Neon Ions Passing through Gases

Range Distributions of Low-energy Nitrogen and Oxygen Ions in Silicon (RESEARCH NOTE)

The range distributions of low-energy nitrogen and oxygen (2-3 keV) ions is silicon are measured and compared with these available in theories. The nitrogen distribution is very close to a Gaussian distribution as predicted by theory. The oxygen profile however, indicates a surface localized peak along with a shoulder and a long tail into the sample. The surface peak is beleived to he the resul...

The Charge Distributions of the Oxygen and Calcium Isotopes

A new method of calculating the charge distributions of isotopic sequences is described and applied to the oxygen and calcium isotopes. It is based on the method of summing the squares of single-particle wave functions of the occupied orbits, together with an iteration procedure to ensure the self-consistency of the neutron and proton distributions. The interactions between the core and valence...

Neon and Oxygen Abundances in M33

We present new spectroscopic observations of 13 H II regions in the Local Group spiral galaxy M33. The regions observed range from 1 to 7 kpc in distance from the nucleus. Of the 13 H II regions observed, the [O III] λ4363 line was detected in six regions. Visiting Astronomer, Kitt Peak National Observatory, National Optical Astronomy Observatories, which is operated by the Association of Unive...

Charge-state evolution of highly charged ions transmitted through microcapillaries

The charge-state evolution of highly charged ions transmitted through microcapillaries is studied theoretically by a classical trajectory Monte Carlo simulation. The interaction of highly charged ions with the internal surface of the capillary is treated within the framework of dielectric response theory. We analyze the distance of closest approach and the angular distributions of the highly ch...

Reduction of OH ions in tellurite glasses using chlorine and oxygen gases