REVISION DATE: 31-Oct-2017 11:44:58

Mikes emailed questions: I am curious aboot the lack of saddle shape for the iris-ed tracks. And, it looks like the all-the-way-closed iris is more-saddled than the open iris? Maybe when you are looking at track defs, could you compare the saddle-shapes? I.E. without iris vs with iris, at iris open vs iris closed vs iris somewhat closed...

It will be interesting to find if the track width of the iris-ed tracks is narrowed!

This page is an attempt to answer Mikes questions (above). Some notes to start. An Iris was added to only Tracks 1,9,11 and 13. All other tracks do not have an iris. So the comparisons here are between non-iris tracks and iris tracks. The first 14 graphs below show the normalize tracks for all files which had light on the tracks.

So track 1 had and iris for all data collection. Files 4,9 and 10 are with the signal reduced by 80x. There is a large saddle change from the fully open iris to the reduced iris.

Figure 1

So track 2 had no iris for all data collection.

Figure 2

So track 3 had no iris for all data collection.

Figure 3

So track 4 had no iris for all data collection.

Figure 4

So track 5 had no iris for all data collection.

Figure 5

So track 6 had no iris for all data collection.

Figure 6

So track 7 had no iris for all data collection.

Figure 7

So track 8 had no iris for all data collection.

Figure 8

So track 9 had and iris for all data collection. Files 6-9 have iris reduced

Figure 9

So track 10 had no iris for all data collection.

Figure 10

So track 11 had and iris for all data collection. Files 7-9 have iris reduced

Figure 11

So track 12 had no iris for all data collection.

Figure 12

So track 13 had and iris for all data collection. Files 8-9 have iris reduced

Figure 13

So track 14 had no iris for all data collection.

Figure 14