crystal diffraction spectrometer

https://doi.org/10.1351/goldbook.C01428
A spectrometer, in which diffraction by a crystal is used to obtain the energy spectra of electromagnetic radiation as well as of slow neutrons.
Source:
PAC, 1982, 54, 1533. 'Glossary of terms used in nuclear analytical chemistry (Provisional)' on page 1552 (https://doi.org/10.1351/pac198254081533)