Ultra Sniffer -­ New leak detection method  

Abstract The test sensitivity of classic sniffer test methods is limited by the helium concentration in the air, but by reducing the atmospheric helium concentration the test sensitivity can be significantly improved. The Ultra Sniffer Test gas (UST) method is simple – there is no evacuation of the test chamber, only a filling with helium […]

Optimum grating parameters for a VUV spectrometer    

Abstract The object of the invention is to provide manufacturing parameters for a holographic diffraction grating on a concave or toroidal surface, which is used as the single optical element in a VUV spectrometer with a flat detector. The spectrometer geometry is also defined alongside the diffraction grating parameters. The invention from the research center […]