R. BERRY 1 has recently directed attention to the use of helium in place of argon in a conventional argon detector. All the rare gases should behave in the same manner as argon, that is, collision of ...

The availability of particle detectors which can be used at up to 4x10-4 Torr pressures has made it possible to use mass spectrometers at pressures close to those used in several plasma processing ...

THE development of high-sensitivity detectors for the chromatographic analysis of gaseous mixtures is of importance in the determination of substances present in very small amounts. A sensitive ...

Scientists are building on decades of sensor work to invent tiny detectors that can sniff out everything from explosives and biotoxins to smuggled humans. Sandia National Laboratories scientists are ...

A new sensor detects helium leaks by monitoring how sound waves propagate through a topological material – no chemical ...

Advanced mathematical analysis of the ionisation of a helium atom by an impacting proton has revealed where discrepancies arise between experiments and existing theoretical calculations of the process ...

CINCINNATI, OH (FOX19) - By: University of Cincinnati Journalism Department student Jamie Gregory. University of Cincinnati Electronic Media Division student William Wolkoff contributed. A 2013 city ...

Mass spectrometers can now be operated at pressures in the proximity of those applied in most plasma processing systems due to the availability of particle detectors capable of being used at pressures ...