1b0359b7_MCA_Record__Description
[Name] IDTIM [Access] R [Prompt] "Instantaneous dead time" [Data type] DBF_FLOAT [Description] 
After a read status operation, this field contains the instantaneous dead time of the detector. The instantaneous dead time is the percent of time the detector was not able to collect data since the previous read status operation.
MCA Record
Description