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For the long-pulse high-confinement discharges in tokamaks, the equilibrium of plasma requires a contact with the first wall materials. The heat flux resulting from this interaction is of the order of 10MW/m2 for steady state conditions and up to 20MW/m2 for transient phases. The monitoring on surface temperatures of the plasma facing components (PFCs) is a major concern to ensure safe operation and...
A comprehensive physics-based model is developed to understand and explain the process of continuous production of biodiesel via the application of microwaves.
Very long wave (> 14μm) infrared quantum cascade detectors based on III-V materials are presented. Thanks to the optimum design of electron transport mechanism, high detectivity is obtained without decreasing device responsivity. For the 14.2 μm QCD, a work temperature up to 82K is obtained with a peak responsivity about 0.95 mA/W and detectivity of 1×108 Jones. Peak responsivities is 2.34 mA/W...
Thin-film WO3 sensor with a MnO2 filter was prepared to reduce interference of O3 for NO2 detection. The multi-films (WO3 film, MnO2 filter and WO3+MnO2 insulting layer) were deposited by radio frequency sputtering. The microstructure and crystalline phase of the films were characterized with SEM and XRD. The sensors were tested for 25–200 ppb O3 and 50–400 ppb NO2 in moist air at temperatures ranging...
The effect of H plasma exposure parameters, such as power, pressure and temperature, on the Si-SiO2 interface is investigated. Inductively coupled photoconductivity decay measurements indicate an increase in carrier recombination at the surfaces following atomic hydrogen exposure, as measured by an increase in the emitter saturation current density. This increase is chiefly due to the generation of...
An investigation of defects caused by boron diffusion into silicon is presented, using two techniques to directly compare the defects at an undiffused and lightly boron diffused Si-SiO2 interface. The first technique uses field effect passivation induced by a MOS structure; the second uses Electron Paramagnetic Resonance measurements to determine the concentration of unpassivated Pb centers on <111>...
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