Attending: Stan, Steve S., Ed, Chris, Josh, Tim, Dan, Wesley, Matt
I have a conflict so I will not be able to attend. However, a quick
update. Thanks to Jason Detweiler, the Braidwood decay chain code has been
generalized to work in GEANT4. Specifically, one can simulate the decay
schemes of U & Th (or others if you wish), inlcuding the betas and alphas
from the decay chain.
Next week or so I will submit it for people to use.
From Tim Bolton:"Here's a summary of what we're trying to do at KSU with RAT, etc: 1. We have four part-time undergrads: Tom, Wesley, Dan, and Arthur. 2. We have a decent RAT/GLG4Sim/G4 setup in place here on our Linux cluster. 3. The students have all started projects: -- Tom is working towards extending event reconstruction work into RAT. He'll probably repeat part of work Chris may be doing with Dave's FSim code just to get some orientation (if Chris still has time for any of this!). The goal is to try to extend the single vertex/energy fit to a few other cases (can we fit two vertices, a straight line, a straight line and a vertex, etc.), and to study more some of the systematics that Dave was struggling with, especially the effect of noise. -- Arthur will work on extending simpleDAQ to a fuller DAQ model, probably bringing into RAT some of the structures that exist in GLG4sim already for photon hits and adding pedestal, noise, and digitization. -- Wesley is working on studying the response of the detector to fast neutrons. He will provide an interface for Noel into RAT studies. -- We have found that there are enough tools to keep track of, plus issues related to keeping our system spruced up, that we need Dan to be a local Braidwood system manager to take some of the stress off our grad student sysadmin Jasmine Foster. We're playing around with some of the visualization tools. I'm beginning to like WIRED, and more particularly WIRED4, which can be easily installed anywhere, even a Windows PC. What you actually do is install slac's JAS3 product, which has it's aficionados here. The installation is beyond idiot-proof; it is professor-proof! I have also discovered binary heprep files, which WIRED4 can read and which are MUCH smaller than heprep, zipped or unzipped. You just need to set up Geant4 with ZLIB and name the file file.bheprep.zip in the /vis/scene/create command. What I have not figured how to do, in any format, is to display the whole detector in WIRED 3 or 4 with all the PMT. It seems to be just too darn big a file and chews too much memory. 4. We also trap Glenn in a room once a week to go over progress."
Chris has copied and installed Dave's reconstruction algorithms into RAT and has been tweaking constants and parameters to be consistent with the RAT code. He will post links to his work and commit his new reconstruction processor to RAT.
Josh has been working on a trigger model along the lines of Arthur's DAQ model.
Stan has committed a parameter storing system, RATDB, based on GLG4Param and added unit tests and logging. It is not clear how the parameters in RAT or the logging with interface with GLG4sim.
Steve has committed a version of the Veto code and will move the code he submitted to GLG4sim up one level to RAT.
Matt will commit a macro to run the IBD events from the generator and continue working on the Gd+n capture physics. Getting the Gd physics into G4 is a very high priority.
A list of possible new work was discussed:
Matthew Worcester Last modified: Thu Sep 22 15:29 CDT 2005