https://doi.org/10.1351/goldbook.B00735
@X06703@ emitted as a result of the retardation of high energy particles by matter.
Source:
PAC, 1991, 63, 735. (Nomenclature, symbols, units and their usage in spectrochemical analysis - VIII. Nomenclature system for X-ray spectroscopy (Recommendations 1991)) on page 737 [Terms] [Paper]