Comments on draft talk

[Elton Smith <elton@jlab.org>]

Hi George,

I have gone over the talk you posted. I have a few comments/questions

o Please number slides for ease of reference

o The beginning of your talk should briefly talk to the requirements of
the design. It is clear that Alex goes over calorimetry goals from the
physics point of view, but a brief (one-page) summary should be included
to set the goals for bcal specifically.

o Slide on construction Module 2. Note that 13.5 cm are vertical layers
(not length of fibers)

o Slide on status of module construction. List of expanded clean room,
second press, second swagging machine. These items should be checked as
part of the P3e schedule. See
http://www.jlab.org/Hall-D/gluex_secure/schedule_final_eir-review.pdf

Statements about funding profile should also be reviewed relative to the
baseline schedule.

o Slide Energy resolution results. I assume your statement on 'no
deterioration of resolution for photons closer to one end' refers to
normally incident photons --an unphysical situation for photons from the
target.

o Comparison with KLOE. This focus of this talk is on the final bcal.
Therefore, during this presentation you want to clearly put forth what we
anticipate for the final design. The prototypes and beam test data should
be shown and used to extrapolate to the final calorimeter. For example in
the table 'comparisons with KLOE' you should have the number expected for
the final detector in addition to the column on what was obtained in the
prototypes. This will help clarify what has been achieved and what we are
aiming for (if they are different).

Cheers, Elton.



Elton Smith
Jefferson Lab MS 12H5
12000 Jefferson Ave
Suite # 16
Newport News, VA 23606
elton@jlab.org
(757) 269-7625
(757) 269-6331 fax