Custom 'headphones' boost atomic radio reception 100-fold

Researchers at the National Institute of Standards and Technology (NIST) have boosted the sensitivity of their atomic radio receiver a hundredfold by enclosing a small glass cylinder of cesium atoms inside what looks like ...

Improving ion transmission efficiency of mass spectrometers

A recent study by researchers from the Hefei Institutes of Physical Science and published in Analytical Chemistry presents a novel electrostatic field ion funnel focusing technology called direct current (DC)-ion funnel. ...

NASA develops technology to dissect the lower atmosphere

The part of the atmosphere closest to the planet is the hardest to measure from space due to the volume of gases above it. Studying Earth's planetary boundary layer, or PBL, will enable scientists to better understand the ...

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Radio frequency

Radio frequency (RF) is a frequency or rate of oscillation within the range of about 3 Hz to 300 GHz. This range corresponds to frequency of alternating current electrical signals used to produce and detect radio waves. Since most of this range is beyond the vibration rate that most mechanical systems can respond to, RF usually refers to oscillations in electrical circuits.

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