1b0359b7_MCA_Record__Description
[Name] STIM [Access] R [Prompt] "Acquisition stop time" NOTE: Prior to release 7-1 of the mca module this field contained the acquisition start time, not the stop time. This was changed because in multi-element detector systems like the DXP xMAP or the SIS38XX MCS the MCA records only process when acquisition completes, not when it starts. This meant that the record time stamp and the STIM field were never being updated. The MCA record always processes when acquisition completes, so this field is now correctly updated. [Data type] DBF_STRING [Description] 
This field contains the time that acquisition was stopped. It is an absolute time as reported and formatted by the IOC.
MCA Record
Description