| Name |
Description |
| Counter |
Proportional Counter (kHz) |
| Clock |
Pixel dwell time (msec) |
| Segment 1 |
Segment 1 of silicon detector (kHz) |
| Segment 2 |
Segment 2 of silicon detector (kHz) |
| Segment 3 |
Segment 3 of silicon detector (kHz) |
| Segment 4 |
Segment 4 of silicon detector (kHz) |
| Segment 5 |
Segment 5 of silicon detector (kHz) |
| Segment 6 |
Segment 6 of silicon detector (kHz) |
| Segment 7 |
Segment 7 of silicon detector (kHz) |
| Segment 8 |
Segment 8 of silicon detector (kHz) |
| Sum Inner Ring |
Sum of the inner ring of segments
(1-3) (kHz) |
| Sum Quadrant Ring |
Sum of the quadrant segments
(4-7) (kHz) |
| BF matched |
Brightfield contrast with matched
apertures, or sum of segments 1-7 (if the detector is aligned
properly) (kHz) |
| BF matched w/o Seg 2 |
As above, but without segment
2. This is useful because in the case of a misaligned OSA or a
too-thin central stop, zero-order radiation can leak through
and hit segment 2. You don't loose much of the wanted first
order radiation because segment 2 to a large degree lies in
the shadow of the central stop (dark center of the beam donut). |
| BF total |
Total brightfield
contrast, or sum of all segments (kHz). This is the most
interesting display for the
segmented silicon detector in most cases. |
| BF total w/o Seg 2 |
As above, but without segment 2. |
| DPC horizontal |
Horizontal differential phase
contrast (segments 6+7-4-5 = left - right when looking at the chip in the upstream direction) |
| DPC vertical |
Vertical differential phase
contrast (segments 5+6-4-7 = upper - lower) |
| DPC diagonal up |
Diagonal differential phase
contrast upwards (segments 6-4 = upper left - lower right) |
| DPC diagonal down |
Diagonal differential phase
contrast downwards (segments 7-5 - lower left - upper right) |
| DPC 1-3 |
Vertical differential phase
contrast (segments 1-3) |
