411 REFERENCE · Wiktionary
PXR
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Noun
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en physics en parametric X-ray radiation, X-ray radiation emitted when relativistic charged particles, like electrons, interact with crystals. Originally predicted by the Soviet scientists Vladimir G. Baryshevsky and Ilya D. Feranchuk.
Further reading
Parametric X-Ray Radiation in Crystals