General MaGe Paper:
Right now only the one-page paper is the way to cite MaGe.
Also there will be a Neutrinos06 one-pager. Need to write a
paper, and there needs to be validation since the referee will
not accept a paper without experimental validation. A potential
experiment could involve a Munich Test Stand. Also the paper could
quote work that has been done and hopefully will be published.
Kevin presents the general paper:
This is an outline of how this paper will look in particular:
I. Introduction
II. Concept
III. Structure of MaGe
IV. Physics
V. Features
VI. Example: 18-fold segmented detector
VII. Validation of the Simulation
One section to quote examples (refer to papers)
There is an n-type detector here at Muenchen could be enough
to put in here. Reyco thinks there is a similar detector on
the Majorana side to add to this. These together would be
fairly nice.
Kevin: The message would be that we have a well-verified framework which
is good for low-background experiments.
Reyco: This paper should be more focused on the framework, IMO.
Daniel: Should fixes to Geant4 go in here as well?
Reyco: Probably, it will be referenced, but also what would they do?
Maybe distribute through Luciano to G4 to get comments.
Kevin will edit the paper and be the editor.
Maybe setup another cvs project to house this paper.
Opening MaGe:
should MaGe become an open-source software? Right now it is
closed and dedicated to Majorana/GERDA. We would not provide
support but rather provide it "as-is". A G4-based simulation
for KamLand has been made publicly available.
If we want to do this, how, etc....:
This is much longer term.
Reyco: If you want to open MaGe, you really need to offer
something useful to the low-background community. I think
it's not necessarily the case that we would provide anything
really valuable. Maybe after we fix things like the neutrons?
Also, even if there is no support people will ask questions.
JFW: I think good version control is important before doing this.
Reyco: My suggestion is to postpone this for about 6 months.
Kevin: So KamLand developed something similar and now it's the
standard?
Luciano: Yes.
Also the sampler is another thing that is useful.
Reyco: I do think we should start versioning and get a
release policy in place.
Luciano slide: In any case a very strict release policy
is necessary.
Pulse shape simulation:
Luciano: MaGe should work without this package. Avoid
this dependency.
Reyco: We've already done some of this, but the big deal
is calculating the fields. We have a student at PNNL doing
this, not sure how it's coming along. What we were planning
on doing, was to use Maxwell3D to calculate fields plug-in to
Gretina code in MaGe.
Great thing for Jason to do if he goes to Berkeley-
Build a pulse-shape simulation package.
Kevin: I think we should have one approach.
Reyco: So one package.
Kevin: Yes.
Reyco: I think we really want to do this by writing it ourselves.
We don't have an analysis toolkit.
Kevin: I think the analysis toolkits should be setup separately.
MGM: It's important to have a shared data object that would interface with
Pulse shape simulation, analysis, experimental data. Jason has done
some work here, I've contributed a little.
Maybe Jing and Jason can head this up.
Kevin: I think AGATA has a very flexible set of software tools which
calculates fields. Maybe we could use this?
R: open?
Kevin, Xiang: yes, we think so. Maybe we can make an official request.
R: So, hopefully Jing on GERDA, Jason on Majorana can do this. Also,
maybe we can look at AGATA. Kevin can you talk to these people and
maybe we can explore this option?
Jing, you can Jason should get in contact with Jason as soon as possible.
ILIAS: Our relationship?
They are interested in improving G4, I think it would be useful for us to
join this. There is a meeting coming up; should be some attendees from MaGe.
Luciano: I think ILIAS side is open to us.
Kevin: So do we get something out of this?
Luciano: Maybe we could get some travel money from ILIAS, but probably not in
the
present context of ILIAS. If you want to get money from the EU, you have to
provide a deliverable (i.e. open MaGe).
R: From Majorana funding POV it is difficult to do this. Maybe we can make t
his
a discussion topic on our first "joint" call.
Luciano: A money problem, hard to solve. So with ILIAS, do we an informal in
volvement?
R: Don't want to duplicate work, so ILIAS would probably be a good thing to do.
Luciano: I know a few groups working on similar things to us. Maybe there are some
patches we could use.
R: Also we could bring patches to the table as well.
Documetation of MaGe:
For a new user it is not really easy to install MaGe. Difficult to do this without
reading code.
Daniel: What was thought: have a written documentation that would be separated into two parts
Users:
how to install without programming, etc.
Developers:
physics list, etc.
doxygen code browser documentation.
We have extracted the old DocBook into a latex file. This needs to be updated.
R: Why not DocBook.
Muenchen folks: Hard to install, use. Don't think sgml is under development.
ACTION: Prioritize and distribute work SOON.
Tested doxygen on code, which looks ok. We will write something as to how
this will be done. We will also write some coding guidelines for this and for
updating documentation. Also some of the header files need to have an updated
format. We will install a code/header template into the MaGe CVS
that people can make classes and header files out of.
FORUM:
Setup by Jing in yahoo groups.
Xiang: I know there was a good setup before so that things which concerned ju
st MaGe,
GERDA, Majorana would be separated.
Jing: I don't think it's a large enough user base to do this.
Luciano: People use it, make comments.
Invitation to Geant4:
There will be a meeting in September (in the UK). There will be a specific session
concerning low-background and underground physics. It would be good if someo
ne other
than Luciano could attend. (from Muenchen and from Majorana) Dates are 13-1
9 Sept 07.
Concerning memory leak:
Markus: Commenting out 4 lines of code concerning trajectory cured the mem
ory leak.
Should be fixed in MaGe.
