Photon Counting Controls¶
Note
This page describes photon counting controls for the NI FlexRIO 5771 high speed digitizer module.
Integration Mode |
Photon Counting Mode |
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This GUI is opened from the Main Window menu. View > Photon Counting Controls
See Photon Counting for more information.
Note
More information about Photon Counting can be found on the Photon Counting concept page.
Photon Counting Controls
Uniform Pixel Bin Size |
Disables the geometry correction for the non-uniform resonant scanning speed (see Line Formation) |
Photon Counting Controls - Integration Mode
Differentiate Before Integration |
Apply centered differentiation on signal for photo current integration |
Absolute Value BeforeIntegration |
Take the absolute value on signal for photo current integration |
Enable Integration Threshold |
Ignore any values below threshold for photo current integration |
Integration Threshold |
Value of integration threshold (in ADC units) |
Disable Mask Averaging |
Disables the division after sample binning (see Line Formation). |
Photon Counting Controls - Photon Counting Mode
Configure Photon Discriminator |
Shows the photon discriminator GUI |
Show Photon Histogram |
Shows the photon histogram |
Photon Selection Mask |
For time correlated photon counting; Binary mask that selects photons after laser pulse used to display in channel |
Disable Mask Averaging |
Disables the division after sample binning (see Line Formation). Should be ON for photon counting. |
Photon Discriminator
Grab Data |
Grab raw digitizer data. (Sync) |
Save Configuration |
Save the current photon configurator settings to disk |
Load Configuration |
Load photon configurator settings from disk |
Signal Conditioning |
Click into box to open configuration dialog |
Scale by Power of 2 |
Scale signal by 2^x |
Offset |
Offset signal by x |
Differentiate |
Apply centered differentiation filter (0: disabled, 1: enabled) |
FIR Filter Enable |
Enable/Disable the FIR filter |
Filter Coefficients |
Click in FIR filter plot to open dialog. Maximum of 32 taps, filter values must be integers |
Photon Discriminator |
Click into box to open configuration dialog |
Peak Threshold |
Threshold for photon detection |
Peak Window |
Window size (in samples) for peak detection, must be odd number |
Debounce |
Debounce samples |
Plots |
Mouse wheel zooms, drag with mouse to pan |
Yellow threshold line |
Drag with mouse to set photon peak threshold |
Photon |
Click on detected photons, drag window and debounce line to adjust values |