double escape peak

https://doi.org/10.1351/goldbook.D01843
In a gamma-ray spectrum, the peak due to @P04398@ in the detector and escape, from the sensitive part of the detector, of two @P04627@ of \(511\ \text{keV}\) resulting from @A00366@.
Source:
PAC, 1982, 54, 1533. (Glossary of terms used in nuclear analytical chemistry (Provisional)) on page 1541 [Terms] [Paper]
Cite as: IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). Online version (2019-) created by S. J. Chalk. ISBN 0-9678550-9-8. https://doi.org/10.1351/goldbook.
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Last revised: February 24, 2014