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GlueX meeting Time - round 3
Hi All,
Well, it turns out after some more thought, we realized that a
9:00am EST time places and undue burden on our collaborators in the more
western time zones. That (coupled with a dentist's appointment I
forgot about this week) means that this weeks's meeting is canceled.
Hence, we need to try and find a new regular meeting time again. This time
we will start from scratch. So ...
Could I please ask everyone to go to the following website one
more time to fill out the times they a NOT available to meet during the
week. Please be conservative in checking off times as we are having
trouble finding a suitable opening. Also, if you have some flexability in
your schedule (i.e. you could move some things around to open up a time
you've marked by closing up another time) just send me an e-mail noting
that.
http://www.jlab.org/~davidl/HallD/ScheduleIt/scheduleit.html
To view the curent schedule at any time, please go to:
http://www.jlab.org/~davidl/HallD/ScheduleIt/cgi-bin/printit.php
For your reading pleasure, I've included the minutes from last week's
meeting below.
Regards,
-Dave
GlueX Weekly Softwae Meeting
Feb. 4, 2005
Attendees: David L. Elliott W. Rafael H. Nokolay K. Zisis P. Joachim K.
Richard J. Greg R. Curtis M. Matt B.
Agenda:
1. New meeting time
2. GlueX Data storage requirements
3. CDC Tracking (Joachim)
4. Rafael Hakobyan (Regina): standalone GEANT MC for BCAL module
simulations
http://www.phys.uregina.ca/~rafael/BCal/
5. Nikolay Kolev (Regina): report on SURA Grid Workshop, Atlanta,
Jan.5-7, 2005
http://www.phys.uregina.ca/halld/software/GridNotes.html
------------
1. We decided on a new meeting time of Tuesdays 9:00am to 10:00am.
(Since the meeting, we have realized that this time places an undue
burden on our collaborators in more western time zones and are
revisting the issue again via electronic polling.)
2. We discussed briefly the numbers in the design report and Elton's
spreadsheet regarding the total CPU and isk space requirements for
GlueX. We agreed that the total data produced by GlueX per year would
be 3PB. We also agreed that current number of 925-950 CPUs for
generation and analysis of simulated data was still our current best
estimate.
3. Joachim described some work he has done for CDC tracking. He has
generated straight tracks in the CDC. By using the distance of
closest approach and the position of the wire, he can determine the
phi angle. He does this by histogramming the angle assuming the
hit was on the left(right) side of the wire. One of the two angles
entered for each hit will line up at the actual phi angle. This will
appear as a sharp peak in the histogram which can be fit to determine
the actual angle of the track. This is being done under several ideal
conditions for the track. Joachim will continue this work by
sequentially adding more complicating factors (Magnetic field, vertex
off the beamline, ...). You can see the pictures he showed at:
http://www-meg.phys.cmu.edu/~kuhnj/Plots. Look at Fit004_CDChits.ps
and Fit004_CDCview.ps.
4. Rafael reported on a simulation of the BCAL he has begun working on
at Regina. He has written a comletely independant Monte Carlo based
on GEANT3 to study shower development in the BCAL. One result obtained
so far is that less than 6% of the energy appears to be deposited in
the fibers. Most of it is deposited in Pb. This project is
still in the early stages, but there is a plan for a series of things
they intend to study. See the link Rafael provided at the top for
more info.
5. Postponed.
------------------------------------------------------------------------
David Lawrence Ph.D.
Staff Scientist Office: (757)269-5567 [[[ [ [ [
Jefferson Lab Pager: (757)584-5567 [ [ [ [ [ [
http://www.jlab.org/~davidl davidl@jlab.org [[[ [[ [[ [[[
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