Developing real-time AIDA data synchronisation test using MIDASsort
To illustrate AIDA readout, ADC and discriminator data from a pulser event is plotted as a function
of the 100MHz AIDA internal timestamp (1us/channel)
Attachment 1 - nnaida8 number of ADC and discriminator data items
Attachment 2 - nnaida1-24 number of ADC and discriminator data items
Attachment 3 - 4*(FEE64 module # - 1) + ASIC # (ADC channels 0-95, disc channels 100-195) versus timestamp
(1us/channel)
The spectra clearly illustrate
- 500kHz ADC readout cycle
- discriminator readout precedes ADC readout by ~18us (this figure will be shaping time dependent)
- after-pulse due to pulser injection via simple charge terminator (no pole zero correction)
~84us after start of ADC readout (this figure will be pulser decay time and shaping time dependent)
Note events were identified (delimited) by time periods > 2us between successive ADC data items |