Table 2 CTF Overall sensitivity and accuracy
Parameter | Symbol | Overall Sensitivity | Accuracy (%) |
|---|---|---|---|
Microscope voltage | V | 207.59 | NA |
Major defocus | Δf M | 154.19 | 1.18 |
Minor defocus | Δf m | 153.13 | 1.07 |
Background PSD | s m | 100.00 | 5.50 |
Background PSD | s M | 94.34 | 4.38 |
Background PSD | b | 50.04 | 5.26 |
Background PSD | K G | 49.92 | 11.91 |
Fraction of scattered electrons | Q 0 | 13.28 | 21.86 |
Chromatic aberration | C a | 11.26 | 14.29 |
Energy spread | ΔV/V | 9.87 | 52.95 |
Defocus azimuthal angle | θ | 4.44 | NA |
CTF Gain | K | 3.14 | 7.41 |
Aperture semiangle | α | 1.53 | 54.23 |
Spherical aberration | C s | 1.33 | NA |
Background PSD | K s | 0.76 | 14.70 |
Background PSD | C m | 0.51 | 40.61 |
Background PSD | K g | 0.45 | 11.22 |
Focal plane displacement | ΔR | 0.43 | NA |
Background PSD | G M | 0.43 | 23.58 |
Background PSD | C M | 0.39 | 38.18 |
Background PSD | G m | 0.37 | 29.72 |
Sampling rate | T m | 0.34 | NA |
Background PSD | c m | 0.27 | 40.60 |
Background PSD | θ G | 0.27 | NA |
Background PSD | g M | 0.20 | 17.51 |
Background PSD | g m | 0.16 | 13.29 |
Background PSD | c M | 0.08 | 19.07 |
Perpendicular displacement | ΔF | 0.05 | NA |
Background PSD | θ s | 0.04 | NA |
Background PSD | θ g | 0.02 | NA |