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skoupy_r
2024-03-15 17:17:17 +01:00
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Controls.md

@ -17,9 +17,12 @@ current
- **Detector** detector used for data collection
- **Use PAAR** Pumping Aperture Angular Restriction, build-in aperture may limit maximal scattering angles for shortest camera lengths
- **Binning** reduction in pixel array size usually increases maximum frame rate
##### CL guide
- build in checks for proper camera length selections for iterative reconstruction
##### CL guide - build in checks for proper camera length selections for iterative reconstruction
- low angle approximation - scattering angle < 10deg (unequally sampled pixel around optical axis and around detector edge)
- ptycho pixel < step size - set step size is smaller than final pixel in reconstructed image - loose of resolution
- beam fits in probe window - probe window is capable to accommodate for defocused probe
- detector cover < 1 alfa - no reconstruction method for such a dataset
- detector cover > 6 alfa - usually no scattering beyond 5 alfas
Always carefully check maximal detector frame rate, needed binning and set dwell time!!