Physicists have traced the double ionization of argon atoms on attosecond time scales. When an intense laser pulse interacts with an atom it generates agitation on the micro scale. The most likely ...
IEEE Spectrum on MSN
How to Measure Nothing Better
Cold atoms could also potentially measure much lower vacuum pressures than ion gauges can. The current lowest pressure they’ve reliably measured is around 10 -9 Pa, and NIST scientists are working on ...
The QTOF‐GCMS instrument integrates the excellent mass accuracy of the quadrupole time‐of‐flight (QTOF) mass spectrometer with the proven gas phase chromatography techniques. 1 Da (mass accuracy in ...
Researchers have for the first time measured the first ionization energy of lawrencium, the last of the actinides, validating predictions of the element’s electronic structure (Nature 2015, DOI: ...
What lies within the H atom? Experimental observation of the transverse nodal structure of four atomic hydrogen Stark states. The images in the middle show experimental measurements. Interference ...
Proceedings of the National Academy of Sciences of the United States of America, Vol. 8, No. 4 (Apr. 15, 1922), pp. 61-63 (3 pages) ...
Nitrosamines are semi-volatile compounds that are an emerging class of drinking water contaminants. Due to their potency as carcinogens, nitrosamines are considered as priority pollutants. This app ...
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