July 5th- Day 11

There's always something.

Luckily, today the detector worked just fine when we turned it on. Since we completed the y scan at 204mm, we started off with the x scan at 204mm. However, the values we obtained were in the 200-300 micron range. We had already proved the detector was working fine and even Alex did not know what was causing this to happen. He said it was a question for Zewu when he comes back from vacation. The only thing we could find was that the x scan was picking up both the K alpha 1 and K alpha 2 peaks in the plot. This was flattening out the graph of the counts vs. position, which was why the spot size was so large. Alex said it was very tricky to get the two separated and said it would either take too long or that he didn't know how. Instead, we scanned x and y at 203mm. Our astigmatism was slightly smaller than before, but still not optimal. Alex then told us to try the 204mm scan again.  We were able to finish the scan in the y direction and will try the scan in the x direction tomorrow.