نتایج جستجو برای: ultraviolet spectrometer
تعداد نتایج: 61544 فیلتر نتایج به سال:
We performed He I ultraviolet photoelectron spectroscopy (UPS) of jet-cooled aromatic molecules using a newly developed photoelectron imaging (PEI) spectrometer. The PEI spectrometer can measure photoelectron spectra and photoelectron angular distributions at a considerably higher efficiency than a conventional spectrometer that uses a hemispherical energy analyzer. One technical problem with P...
We describe the design concept and scientific objectives of ALICE: a lightweight (2.2 kg), low-power (2.9 W), and low-cost UV imaging spectrometer for the ESA Rosetta Orbiter. Ultraviolet spectroscopy is a powerful tool for studying astrophysical objects, and has been applied with great success to the study of comets. ALICE is designed to obtain far-UV (FUV) spectra of the Rosetta comet nucleus...
A fast and inexpensive spectrometer system has been developed to record extreme-UV impurity spectra in a magnetic-fusion-research device. To simplify the vacuum system, light is passed out of the spectrometer's vacuum to the detector with a sodium-salicylate-coated, fiber-optic coupler. This coupler is positioned so that the focal field is nearly flat over its aperture. The system's detector is...
The orange fluorescence of scapolite has been confirmed to be caused by (S2)−, but the frequent blue in gem-quality not well explained. An energy dispersive X-ray spectrometer (XRF), electron probe microanalyzer (EPMA), powder diffractometer (XRD), Fourier transform infrared (FTIR), Raman spectrometer, ultraviolet-visible spectrophotometer, and conventional gemological test methods were used st...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید