[Halld-tagger] information on tagger vacuum window? TAGM geometry?

[Daniel Sober]

I am working on a detailed Monte Carlo code for the tagger, and realized I
do not know the location and thickness/material of the tagger vacuum
chamber exit window. I need this for multiple scattering.  Can anyone
provide it?

Recently I have exhumed my Hall B code (not run since 2001) which
incorporates the SNAKE subroutines into a free-standing Monte Carlo
framework, and successfully run  trajectories through the Hall D field maps
to the focal plane.  I am just beginning the task of setting up the TAGH
and TAGM geometries.

My initial goal is to calculate the acceptances and energy spectra of the
high-photon-energy counters (TAGH 1-100), since these will be very
sensitive to beampipe collimation and the quadrupole field.

Unless someone else is working on it by some other route, I will also try
to simulate the properties of the TAGM.  To do this, I will need a detailed
geometry of the detector, plus some input about what you think is
important, e.g. energy deposit spectrum for each fiber and correlation
matrices between adjacent fibers with some given pulse height cuts.  If
anyone has started working on such a code, I will happily accept
contributions.  (My code is in fortran, but gfortran will also accept c++
routines.)

Dan
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.jlab.org/pipermail/halld-tagger/attachments/20160612/01e17aab/attachment.html>