[Moller] MOLLER planning for 2011

[Krishna Kumar]

 Hi, Folks. The purpose of this email is to lay out a a plan for MOLLER activities in 2011. These bullets were generated out of the discussion we had at the end of the last collaboration meeting in early December and subsequent conversations I have had with many collaborators. 
Cheers,  KK

1) DoE Proposal: 
The next step in formalizing the MOLLER project is to write a proposal to DoE NP. I will make a plan for figuring out the scope, assemble the group that will put it together and come up with a realistic target date for submission. Rough timescale is late February/early March. The goal is to trigger the first DoE review in the summer, which hopefully will trigger the  process of obtaining CD-0.

Items 2 thru 5 will need periodic meetings and I have requested specific people to take charge of figuring out when and how often to call these meetings and what is the minimum set of people who should call in to these meetings. Each of these meetings should have a mailing list, which the person in charge should launch. If you want to attend any of these meetings, send an email to the person in charge. 

2) Simulations:
Dustin McNulty has agreed to coordinate the activities. Please contact him if you can spare some cycles and wish to participate in the ongoing activities, which includes constructing a detailed modern framework to facilitate coordination of software development by multiple groups, aid in the optimization of the spectrometer optics, re-evaluate the main MC physics process generators with emphasis on EM radiative corrections, launch the detailed design studies for 2-bounce photon collimation, and develop a new generator for weak decay backgrounds.

3) Spectrometer:
Juliette Mammei and I will continue to coordinate these efforts in the near-term, though I must admit that I personally need to hand off coordination to an experienced senior collaborator by the summer. Over the next few months, we plan to complete "optics tweaking", take the first cut at designing a magnet support structure, and work with the simulation group to design the collimation and shielding. We will aim to present the status to the Magnet Advisory Group likely in April or May to get further advice on how to proceed.

4) Beam Monitoring/ Tracking / Detectors
Mark Pitt has agreed to coordinate a periodic meeting of a superset of 3 subgroups:

- Beam Instrumentation: Mark Pitt is in charge of this subgroup. Our primary goal here is to flesh out an R&D plan and define the minimal set of beamline elements needed.

- Tracking: Dave Armstrong is in charge of this group. We need to explore the variety of technology and mechanical choices available for 3 planes of detectors, one set of scanners and launch the necessary simulations to help in these decisions.

- Integrating detectors: Michael Gericke has agreed to coordinate this group, with assistance from Dave Mack. We need to define all the detector systems and their mechanical support structures, put them into a master CAD file launched at UMass, and launch the necessary simulations to help us make appropriate design decisions on geometry, scope and shielding.

5) Source and Polarimetry:
Kent Paschke has agreed to coordinate a periodic meeting of this superset. Whether this "shotgun wedding" between these 2 groups will work is not clear and we may well end up with separate meetings for the two subgroups. The only reason to merge this is to have a common coordinator and reduce the number of independent meetings.

Polarized Source: Gordon Cates in in charge of this subgroup. We need to define the R&D plan to achieve the design specs, start a dialog with the JLab Source group, and articulate what resources might be needed to accomplish them.

Polarimetry: Kent Paschke is in charge of this subgroup. Here the planning is common to MOLLER and SOLID and a detailed plan will be developed for both Compton and Moller polarimetry in the SOLID meeting in 2 weeks.

6)Target: 
J-P Chen has agreed to take on overall coordination. The near-term goals are to review projected costs and plan for the schedule of the necessary resources to design the target.

7) MOLLER Project:
Javier Gomez has launched a dialog with JLab project folks and set up the framework that will be used to formulate the cost and schedule. He will need input from all the subsystems as the apparatus gets better defined over the next few months.