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This screen is used to access and control the four sweep detectors.
For readout of large amounts of detector memory, see Matlab Detector readout for the Matlab interface, or Socket Detector readout for the underlying socket API.
For each detector the following controls and indicators are shown here (each PV is prefixed with $(device):$(axis) and n runs from 0 to 4):
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| Title | PV | Description | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Source | :DET:SELECT_S | Normally the data to each detector should be passed through the FIR, if only to reject the bunch by bunch fill pattern, but it is possible to select the raw ADC data as an alternate sourceThe detector can be used to select one of the following sources:
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| FIR delay | :DET:FIR_DELAY_S | This can be set to the group delay of the FIR filter so that this delay is compensated for in the detector. However, we have discovered at DLS that setting this to anything other than 0 is confusing. | |||||||||
| ADC no fill length | :ADC:REJECT_COUNT_S | This is a copy of the fill reject length control on the ADC Setup page. | |||||||||
| Captured | :DET:SAMPLES | This records the number of samples captured in the last sweep. | |||||||||
| Underrun | :DET:UNDERRUN | This should never indicate anything other than "Ok", an error here indicates a worrying internal FPGA problem, or possibly an unreasonably small bunch count. | |||||||||
| Waveforms | :DET:FILL_WAVEFORM_S | This is a fudge to help EDM, and should otherwise be set to "Truncated". This will probably be deleted. |
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On the bottom right two buttons link to related screens:
| Title | Link | Description |
|---|---|---|
| Tune | Tune Fitting Overview | Link to tune fitter. Note that only tune fitting for the first detector is available. |
| SEQ Trig | Trigger Target Setup | Trigger configuration for sequencer trigger |