effective cadmium cut-off energy

in nuclear analytical chemistry
https://doi.org/10.1351/goldbook.E01891
In a given experimental configuration, the energy value determined by the condition that the @R05054@ response would be unchanged if the cadmium cover surrounding the detector was replaced by a fictitious cover opaque to neutrons with energy below this value and transparent to neutrons with energy above this value.
Sources:
Orange Book, 2nd ed., p. 221 [Terms]
PAC, 1982, 54, 1533. (Glossary of terms used in nuclear analytical chemistry (Provisional)) on page 1540 [Terms] [Paper]