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Weaver, Matt Tue 10/9, 3:07 PMO'Grady, Paul Christopher;Dubrovin, Mikhail;Damiani, Daniel S. Also, here's some description of the nominal geometry. Pay close attention to the last part that describes the positioning of ASICs within an "element". I think this might be different than before. -Matt // // Hard code the array's geometry for now // // (Epix10ka2m) // | // Quad 3 | Quad 0 Quad 1 is rotated 90d clockwise // -------+-------- Quad 2 is rotated 180d clockwise // Quad 2 | Quad 1 Quad 3 is rotated 270d clockwise // | // // (Quad 0) // | // Elem 0 | Elem 1 // -------+-------- No rotations // Elem 2 | Elem 3 // | // // (Elem 0) // | // ASIC 0 | ASIC 3 // -------+-------- No rotations // ASIC 1 | ASIC 2 // | |
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Weaver, Matt 2018-11-18, 6:14 PMDubrovin, Mikhail;O'Grady, Paul Christopher
Here's the geometry I'm now using (below). Note that pixel(0,0)
for each of the elements below is in the lower right hand corner.
We'll know the quadrant layout for sure when we get the radioactive source exposure on Monday.
// (Epix10ka2m)
// |
// Quad 3 | Quad 0 Quad 1 is rotated 90d clockwise
// -------+-------- Quad 2 is rotated 180d clockwise
// Quad 2 | Quad 1 Quad 3 is rotated 270d clockwise
// |
//
// (Quad 0)
// |
// Elem 0 | Elem 1
// -------+-------- No rotations
// Elem 2 | Elem 3
// |
//
The ASICs did not move. The change is that the (352,384)
array has pixel (0,0) in the lower right hand corner (in ASIC2).
// (Elem 0)
// |
// ASIC 0 | ASIC 3
// -------+-------- No rotations
// ASIC 1 | ASIC 2
// |
//
// (Elem 0-3 pixel array)
// row increasing
// ^
// |
// |
// column increasing <-- (0,0) |
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Weaver, Matt 2018-11-19, 7:37 PMO'Grady, Paul Christopher;Dubrovin, Mikhail Hi Mikhail, We took radioactive source test runs today to verify the geometry. We found that we were rotated by 90 degrees, which matches the labeling on the back of the detector as well as the metrology picture from Chris Kenney. The runs are /reg/d/psdm/det/detdaq17/e968-r0131 - source unmasked (up to ~ event 10000), then masked vertically after ~ event 15000 /reg/d/psdm/det/detdaq17/e968-r0132 - source masked horizontally at bottom after ~ event 15000. So, the picture is... // (Epix10ka2m) // | // Quad 0 | Quad 1 Quad 2 is rotated 90d clockwise // -------+-------- Quad 3 is rotated 180d clockwise // Quad 3 | Quad 2 Quad 0 is rotated 270d clockwise // | // // (Quad 1) // | // Elem 0 | Elem 1 // -------+-------- No rotations // Elem 2 | Elem 3 // | // // (Elem 0) // | // ASIC 0 | ASIC 3 // -------+-------- No rotations // ASIC 1 | ASIC 2 // | // // (Elem 0-3 pixel array) // row increasing // ^ // | // | // column increasing <-- (0,0) |
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