[Shms_users] SHMS-HMS Users Group Newsletter #11

Donal Day dbd at cms.mail.virginia.edu
Thu Jun 2 08:13:15 EDT 2011 

                      SHMS-HMS Users Group Newsletter
                      -------------------------------
                               June 2011

Newsletter edited by: Donal Day

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SHMS-HMS User's Board
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SHMS-HMS User's Board has held frequent phone meetings to discuss SHMS development and progress as well as issues associated with the 12 GeV upgrade in Hall C.

Meetings have been held on:

November 9, 2010
December 8, 2010
January 20, 2011
March 17, 2011
May 5, 2011
May 23, 2011


If you have any comments or suggestions on issues of relevance for the SHMS-HMS, or if you have news that you would like to contribute to future issues of this news letter, please contact any SHMS-HMS User's Board Member:

  John Arrington         johna at anl.gov
  Donal Day              dbd at virginia.edu
  Tanja Horn             hornt at jlab.org
  Garth Huber            huberg at uregina.ca
  Mark Jones             jones at jlab.org
  Ioana Niculescu        ioana at jlab.org
  

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Since the last newsletter
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HMS detector-builders working meeting was held on January 13, 2011 at JLAB. 
The agenda included the following talks:

Project Status Overview	Howard Fenker	
SHMS Calorimeter		Arthur Mkrtchyan
Heavy Gas Cerenkov		Garth Huber 
Drift Chambers			Peter Monaghan
Scintillator Hodoscope	Ioana Niculescu	
Quartz Hodoscope		Abdellah Ahmidouch
Detector Support Frames	Charles Perdrisat
Cerenkov Gas Systems	Brad Sawatzky

Documents can be found at:
https://hallcweb.jlab.org/doc-private/DisplayMeeting?conferenceid=25

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Hall C Summer Workshop will be held August 19-20, 2011
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The Hall C summer workshop will be held August 19 & 20, 2011 at JLAB.

Meeting topics include a an update on Hall C running and progress in preparations for 12 GeV era.

The main body of the meeting will be revolve around three physics sessions:

1) Hadrons in the Nuclear Medium

2) Polarized Structure Functions

3) The 3D Structure of Hadrons. 

The fourth session will address the SHMS Commissioning.

A web page that will serve as a vessel for all the relevant information about the meeting can be found at: http://www.jlab.org/Hall-C/talks/08_19_11/


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SHMS Project Update (provided by H Fenker)
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Project Management
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Walter Kellner has provided an updated installation schedule which respects constraints placed on how much removal of legacy equipment from Hall-C can be done in 2011.  This is being incorporated into the overall project plan. The detector installation period remains at six months duration, beginning in September, 2013.  The period following this, defined as "detector checkout", has been shortened to two months since most detector checkout with cosmics can occur during the installation period.  Beam for the most basic commissioning of the SHMS is scheduled for the week beginning September 26, 2014.

Magnets
-------

  Both HB dipole coils have been wound and cured. MSU is now working on mechanical design details, identifying sources for the type of stainless steel required, and subcontracting some of the engineering consultation, machining and welding. The Q1 vendor has overcome some financial difficulties and is now working at full speed again. It has wound, cured, and electrically tested the first coil (all successfully) and is proceeding on winding the remaining three coils. The copper extrusion needed to stabilize the superconductor for the Q2, Q3, and Dipole magnets has been extruded and has passed QA checks. The vendor for these three magnets will soon meet with JLab engineers to determine if any further preparation of the copper and superconducting cable is necessary. Procurement packages for the Q2, Q3, and Dipole steel yokes and supports have been prepared and await (hopefully early) funding.

Support Structure and Shield House
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 The 3D CAD model, which was completed some months ago, is being turned into shop drawings section-by-section. Procurement packages for these components are being placed and await funding. This work is roughly half done. Designs for most of the cryogenic distribution system has been completed and some of the parts are on order. The designers are currently re-evaluating the plans for access to the detectors and how to install them within the shield house. At issue is how to support the shielding on the beam-side of the shield house where it extends above the beamline.

SHMS Detectors Update
---------------------

Howard Fenker has collected input from all those responsible for the construction fo the SHMS Detectors and has created a status report that will be soon  shared with the 12 GeV management and posted to the Hall-C document database. 

In a word things are going well with no preceived problems with technical performance or schedule.

As a reminder the detector team is:
Howard Fenker, JLab Hall‐C 12 GeV Assistant Project Manager
Donal Day, University of Virginia
Dipangkar Dutta, Mississippi State University
Tanja Horn, Catholic University of America
Garth Huber, University of Regina
Hamlet Mkrtchyan, NSL (Yerevan)
Peter Monaghan, Hampton University
Ioana Niculescu, James Madison University
Charles Perdrisat, College of William and Mary
Brad Sawatzky, JLab


SHMS Software Working Group
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Gabriel Niculescu is heading up the development of a C++/Root based analyzer. He is working with Simon Zhamkachyan to get a full version of the calorimeter software implemented in the HANA framework to serve as a test model for the
other detectors.  Volunteers are still needed.  Those who are interested in working on the 12 GeV software development should contact either Gabi (gabriel at jlab.org) or John Arrington (johna at anl.gov).

For more information, please see the Software Wiki at:
   http://hallcweb.jlab.org/wiki/index.php/Hall_c_soft_main
   
   
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SHMS Commissioning Plan
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On May 27, 2011 the Hall Users group mailing list was sent a letter by Hall C leader, Steve Wood, inviting representatives of any experiment that wished to be considered a commissioning or early experiment to make a short presentation at the Hall C Summer Workshop (see above) in which they would address the suitability and readiness of their experiments to run early in the 12 GeV era. In this letter it was pointed out that though scheduling was a lab management responsibility, it was hoped that "these presentations and discussions will ultimately lead to a consensus among Hall C users of the choice and ordering of the initial experiments."

Be sure to pass the word to all those involved in the already approved 12 GeV Hall C experiments and encourage them to contact Steve Wood by June 30.


Useful Weblinks
---------------
Hall C Publications:   		https://hallcweb.jlab.org/publications/
Hall C Ph.D. Theses:   		http://www1.jlab.org/ul/generic_reports/thesis.cfm
Hall C Home Page:      		http://www.jlab.org/Hall-C/
Hall C Wiki:           		https://hallcweb.jlab.org/wiki/
Hall C 12 GeV Upgrade: 		http://www.jlab.org/Hall-C/upgrade/

SHMS-HMS Users Group:   	http://www.jlab.org/Hall-C/upgrade/shms_users_group.html

Previous Newsletters: 		http://www.jlab.org/Hall-C/upgrade/newsletter.html

Conference listing page:        http://cnr2.kent.edu/~manley/BRAGmeetings.html

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