Far ultraviolet instrument technology
نویسندگان
چکیده
منابع مشابه
Far Ultraviolet Detector Standards
National Bureau of Standards Gaithersburg, MD 20899 A description is given of the NBS program in which special photodiodes for the far ultraviolet spectral region (5254 nm) are made available as transfer standards. These detectors are calibrated in terms of quantum efficiency (photoelectrons per incident photon) as a function of wavelength. Descriptions are also given of the calibration princip...
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Starbursts are a significant component of the present-day universe, and offer unique laboratories for studying the processes that have regulated the formation and evolution of galaxies and the intergalactic medium. The combination of large aperture size, medium-to-high spectral resolution, and access to the feature-rich far-ultraviolet band make FUSE a uniquely valuable tool for studying starbu...
متن کاملPhotochemistry in the Far Ultraviolet
Although a few surveys of vacuum ultraviolet photochemistry of a limited scope have appeared in recent years (1-5), the excellent review by McNesby & Okabe (6) which appeared in 1964 is the most recent comprehensive survey of the far (or vacuum) uv photochemistry of inorganic and organic substances. The progress made since then is obviously too vast to be covered in its entirety in the limited ...
متن کاملDesign and fabrication of far ultraviolet filters based on π-multilayer technology in high-k materials
Application of π-multilayer technology is extended to high extinction coefficient materials, which is introduced into metal-dielectric filter design. Metal materials often have high extinction coefficients in far ultraviolet (FUV) region, so optical thickness of metal materials should be smaller than that of the dielectric material. A broadband FUV filter of 9-layer non-periodic Al/MgF2 multila...
متن کاملPrimordial Star Formation under Far-Ultraviolet Radiation
Thermal and chemical evolution of primordial gas clouds irradiated with farultraviolet (FUV; hν < 13.6 eV) radiation is investigated. In clouds irradiated by intense FUV radiation, sufficient hydrogen molecules to be important for cooling are never formed. However, even without molecular hydrogen, if the clouds are massive enough, they start collapsing via atomic hydrogen line cooling. Such clo...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Space Physics
سال: 2017
ISSN: 2169-9380,2169-9402
DOI: 10.1002/2016ja023578