Abstract A self-consistent hybrid model of standing and moving striations was developed for low-current DC discharges in noble gases. We introduced the concept surface diffusion phase space ( r , u ) (where denotes electron kinetic energy) described by a tensor nonlocal Fokker–Planck equation electrons collisional plasma. Electrons diffuse along surfaces constant total energy ? = ? e? between j...

We calculate the efficiency of iron K line emission and iron K absorption in photoionized models using a new set of atomic data. These data are more comprehensive than those previously applied to the modeling of iron K lines from photoionized gases, and allow us to systematically examine the behavior of the properties of line emission and absorption as a function of the ionization parameter, de...

We present experimental data on the decay of xenon Stark states converging to the upper spin limit. In an electric field the Rydberg electron has two qualitatively different decay paths. If the electron changes the core state from the upper spin state into the lower spin state, it gains sufficient energy to escape the ionic core and autoionizes. Moreover, if the electronic state is above the sa...

Construction of ISS will require more than 1000 hours of EVA. Outside of ISS during EVA, astronauts and cosmonauts are likely to be exposed to a large fluence of electrons and protons. Development of radiation protection guidelines requires the determination of the minimum energy of electrons and protons that penetrate the suits at various locations. Measurements of the water-equivalent thickne...

The degradation of thin tunnel gate oxide under constant Fowler–Nordheim (FN) current stress was studied using flash EEPROM structures. The degradation is a strong function of the amount of injected charge density (Qinj), oxide thickness, and the direction of stress. Positive charge trapping is usually dominant at low Qinj followed by negative charge trapping at high Qinj, causing a turnaround ...

We present a new derivation of the cosmic microwave background anisotropy spectrum from the OstrikerVishniac effect for an open, flat, or closed universe, and calculate the anisotropy expected in cold dark matter ~CDM! models. We provide simple semi-analytic fitting formulas for the Vishniac power spectrum that can be used to evaluate the expected anisotropy in CDM models for any arbitrary ioni...

We present spectroscopic observations of diffuse ionized gas (DIG) in M33 near the H II region NGC 604. We present the first detection of [O I] λ6300 in the DIG of M33, one of the critical lines for distinguishing photo-from shock ionization models. We measure [O I]/Hα in the range of 0.04 to 0.10 and an increase in this ratio with decreasing emission measure. Our measurements of [S II]/Hα and ...