The picture shows a close-up of one carbon atom. A hydrogen atom has one proton as the nucleus and one electron in the region outside the nucleus. The electron and proton are attracted to each other.

They have found a new use for the superconducting nanowire photon detectors (SNSPDs ... Found in the atomic nucleus of every element, the proton is a particle with a positive electrical charge.

This report both complements and extends Technical Reports Series No. 277/2, Absorbed Dose Determination in Photon and Electron Beams - An International Code of Practice, IAEA Technical Reports Series ...

Polaritons are hybrid particles made up of a photon strongly coupled to an electric dipole. Examples of such a dipole include an electron–hole pair in a semiconductor, which forms an exciton ...

This device was used in the first successful demonstration of high-energy proton detection using SNSPDs ... new use for the superconducting nanowire photon detectors (SNSPDs) already employed ...