Date: Fri, 02 Jul 2010 17:54:25 +0900
From: John Flanagan <john.flanagan@kek.jp>


 Questions were:

1) Why do we need a Be window?
A: We need some kind of window, and the Be window is already there...

2) Are we scavenging anything from Cornell and leaving them without a
working system?
A: No

3) Why is the coded aperture such a complicated pattern?
A: The pseudo-random pattern has the advantage of a relatively flat
sensitivity over
a wide range of spatial frequencies.

4) So the pattern analysis is similar to the peak-to-valley ratio analysis
of an SR interferometer?
A: Yes. (Except that it is not simply analytic, unfortunately.)

5) Is the mask mounted in air?
A: Yes.

6) Comment: the ability to do remote rotational adjustment will be needed.
A: Yes, that is true.

7) Do we need dedicated beam time?
A: Set up, alignment, detector and readout testing can be done
parasitically, as long as there
is beam coming down the extraction line. Once we are ready to do a
resolution test, we
will then want to request a tuned beam size (~5 um) at the source point.