We’ve tested 22 popular flashlight models to compare their ease of use, beam strength, battery life and durability. Three stood out as the best.

Instrumentation to measure beam parameters is essential for delivering high-quality beams, not only in the LHC, but ...

This article compares three types of photoelectric sensors—through-beam, retroreflective and diffused—used in industrial applications to detect object presence.

Grid Beam sizes down Speaking of littler kits, the Grid Beam concept is also available in a smaller size. Jason Huggins has been working on a Lego-scale version of the concept, called Bitbeam.

Focused ion beams or FIB are generated to focus on the point source’s image by using electrostatic lenses onto a substrate and then its precise deflection. These beams usually have a diameter ...

An "ideal" beam is defined as a monoenergetic, photon-free source of neutrons with user-specified size, shape and angular dependence of neutron current. The dosimetric behavior of monoenergetic ...