Conventional DLS instruments use a detection angle of 90°. The concentration limit of instruments using such optics is very low, as multiple scattering effects need to be eliminated. Multiple ...

The process of sizing and counting particulates in a sample is called particle measuring and can be performed in either liquid or air. Industrial processes such as semiconductor wafer fabrication use ...

Today’s standards define airborne particle monitoring in units of particles per cubic meter (particles/m 3). These standards tend to require sampling an entire cubic meter (1 m 3) to establish an ...

The mind-bending laws of quantum mechanics say we can't observe the smallest particles without affecting them. Physicists have now caused the smallest-ever disturbance while making a quantum ...

Don Lincoln is a senior scientist at the U.S. Department of Energy's Fermilab, the country's leading particle physics research institution. He also writes about science for the public, including his ...

Aim: Sampling, sample preparation, and off-line measurement are inconvenient steps for particle size characterization, as they require trained operators, method validation and sometimes transport to ...

Dark Matter Particle Explorer (DAMPE) Collaboration directly observed a spectral softening of helium nuclei at about 34TeV for the first time. This work was based on measurements data of the helium ...