The transterminator ion flow at Venus at solar minimum

Ion Temperatures in the Low Solar Corona: Polar Coronal Holes at Solar Minimum

In the present work we use a deep-exposure spectrum taken by the SUMER spectrometer in a polar coronal hole in 1996 to measure the ion temperatures of a large number of ions at many different heights above the limb between 0.03 and 0.17 solar radii. We find that the measured ion temperatures are almost always larger than the electron temperatures and exhibit a non-monotonic dependence on the ch...

Daytime altitude variations of the equatorial, topside magnetic fieldaligned ion transport at solar minimum

[1] Above the ion density peak, the interhemispheric transport of plasma plays an important role in shaping the spatial density distribution of the ionosphere. This study uses daytime observations of the ion drift, density, and composition near the geomagnetic equator from the Coupled Ion-Neutral Dynamics Investigation on board the Communication/Navigation Outage Forecasting System satellite, f...

LOW-ENERGY-ION ENHANCED DIFFUSION AT THE SURFACE OF METALS

Radiation enhanced diffusion at the surface of metals has been observed and studied for low-energy nitrogen ions at the surface of copper. The displacement of the target atoms during irradiation creates vacancies and other defects near the surface, thus enhancing the diffusion of implanted materials toward the surface and also into the solid. The mechanism has been studied here by a specia...

An experimental investigation of performance of a 3-D solar conical collector at different flow rates

The shape of a solar collector is an important factor in solar-to-thermal energy conversion. Conical shape is one of the stationary and symmetric shapes that can be employed as a solar water heater. Flow rate of working fluid on the solar collector has an important effect on the efficiency of the collector. The present study is an experimentally investigated of the performance of the solar coni...

Venus ® Diamond Venus ® Diamond Flow