Period of time after the dead time of a radiation counter during which the output pulses are smaller than the original.
Note:
Depending on the sensitivity of the counter, some pulses in this period will not be counted.
Source:
PAC, 2021, 93, 69. 'Vocabulary of radioanalytical methods (IUPAC Recommendations 2020)' on page 99 (https://doi.org/10.1515/pac-2019-0302)