sPHENIX HCal discussion

[John Haggerty <haggerty AT bnl.gov>]

Very soon, we need to agree to changes in the "reference design" of the 
calorimeters engendered by the descoping exercise.

In particular, I think the next prototypes we test should be as close to 
the final design as possible.  In the case of the HCAL, there are not 
that many changes to the reference design.  The main one, which I 
believe has only been discussed in engineering meetings, is that the 
Inner HCAL would be made of 4 flat plates per tower instead of 5 tapered 
plates.  There have already been some studies of this design by John 
Lajoie and others, but we should all agree that this is how we wish to 
proceed.

If we can agree on this design change in the next week or so, it should 
be possible to build a new Inner HCAL prototype in time for the next 
beam test.

Since not everyone attends every meeting, I think it's important that we 
discuss this with a wide audience on the lists.  So fire away.

--
John Haggerty
email: haggerty AT bnl.gov
cell: 631 741 3358