Camera length calibration » History » Version 3
  Anchi Cheng, 04/29/2020 06:13 PM 
  
| 1 | 1 | Anchi Cheng | h1. Camera length calibration | 
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| 3 | Camera length calibration can be simply done by acquiring a diffraction image of cross-grating replica and enter the expected d-spacing of Au-Pd power rings and measure the diameter of the ring in Leginon gui. | ||
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| 5 | 2 | Anchi Cheng | * This is only tested on TFS Ceta and Tvips F416 at 2kx2k bin 2 | 
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| 7 | 3 | Anchi Cheng | # Send a diffraction tem preset. See [[Setup df preset]] | 
| 8 | 1 | Anchi Cheng | # Select "Camera Length" node | 
| 9 | # Click "Acquire Image" | ||
| 10 | # Measure the diameter of the ring in pixels. | ||
| 11 | # Click "Ruler" tool to enter the expected d-spacing and measurement, and then click "Calculate" | ||
| 12 | # Multiple measurements can be made with the same preset and the camera length averaged. | ||
| 13 | # Select the camera lengths to be averaged and saved, and save them. | ||
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| 15 | Direct Edit and Extrapolation is possible as in Pixel Size Calibrator. | ||
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