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<big> <font color="" size="+3"> PREX  Wiki </font></big>
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{| cellpadding=5 style="margin:7px 30px 0 30px; <!--
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  --> float:right; border:1px solid #AA6633"
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|- bgcolor="#fbfeff"
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| [[Contact_Information | PREX Contact Information]]
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|-
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| [[Hall A Phone Book | Hall A Phone Book]]
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|-
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|[[PREX_wiki_info | PREX Wiki Info]]
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|-
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|[[Main_Page_2010 | Old Main Page]]
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|-
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|[[Documentation]]
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|-
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| [[HOW TOs | HOW TOs for shift crew]]
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|-
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| [[Expert Tools]]
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|}
  
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<p>The Lead Radius Experiment ("PREX"), experiment number E06002, uses the parity violating
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Welcome to the <big> PREX/CREX Wiki </big>!
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weak neutral interaction to probe the neutron distribution in a heavy nucleus, namely 208Pb,
 
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thus measuring the RMS neutron radius to 1% accuracy, which has an important impact on nuclear
 
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theory. </p>
 
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<br>
 
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<p>Spokespersons:  Krishna Kumar (U. Mass),    Paul Souder (Syracuse),  Robert Michaels (JLab),  Guido Urciuoli (INFN). </p>
 
  
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__FORCETOC__
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The purpose of this Wiki is to organize information relevant to the running experiment, and to foster communication and collaboration. For more information, see the webpage at [http://hallaweb.jlab.org/parity/prex Lead Radius Experiment ("PREX")] or .
  
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<UL>
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If you are looking for the March 18-20th Hall A beam tests information please go to: [[190318BeamTests| webpage]]
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<LI> See also  http://hallaweb.jlab.org/parity/prex 
 
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</UL>
 
  
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'''Please find the PREX II Wiki Main page [[Main_Page_PREXII|HERE]]'''
  
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== Proposal and Updates ==
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'''Find the Covid-19 restoration plan [https://physdiv.jlab.org/2020MedConOps/20200529-ResumptionPlan.pdf here (May 29th)]'''
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__NOTOC__
  
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<UL>
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== CREX Shift Information ==
  
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<LI> [http://hallaweb.jlab.org/parity/prex/pbup2005.ps 2005 Latest Proposal Update] (Postscript), and [http://hallaweb.jlab.org/parity/prex/pbup2005.pdf Same, PDF].
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Contact information
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<LI> [http://hallaweb.jlab.org/parity/prex/pbup2002.ps 2002 Earlier Proposal Update]
 
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<LI> [http://hallaweb.jlab.org/parity/prex/pbpro.ps Original Proposal] (Dec 1999).
 
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</UL>
 
  
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== Related Physics Info ==
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*Direct Counting-House Always-On Bluejeans connection: https://bluejeans.com/779147679. Also by phone dial 18882402560, key in 779147679 ##.
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<font color="Black">
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*RC phone: 757-876-1787
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<UL>
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*Cordless phone (Target Operator): 757-269-5658
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<LI> Paper on [http://hallaweb.jlab.org/parity/prex/neutron_density.ps Parity Violating Neutron Densities] published in <font color="blue">Phys. Rev. C63, 025501 (2001).</font> Cited 100 times according to SPIRES (Oct 2008).
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*Shift leader phone (try not to use this):  757-269-5501
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<LI> 1-Page Experiment Summary for the Public [http://hallaweb.jlab.org/parity/prex/prex_summary.ps Postscript] or [http://hallaweb.jlab.org/parity/prex/prex_summary.pdf PDF]
 
  
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<LI> [http://hallaweb.jlab.org/parity/prex/PREX_EINN05.ppt EINN 2005 Poster] about PREX (powerpoint).
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Useful links
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<LI> [http://cecelia.physics.indiana.edu/Parity/Pb/references.html References from C. Horowitz] (needs to be updated).
 
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<LI> <font color="blue"> The 2008 PREX workshop </font>
 
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<UL>
 
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<LI> List of [http://conferences.jlab.org/prex/program.html 2008 PREX Workshop talks].
 
  
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<LI> Here is [http://olivia.iucf.indiana.edu/%7Echuck/prex C. Horowitz's page] on the workshop.
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* [https://docs.google.com/spreadsheets/d/1PmtPS-q1BRj0tm99sO2sphhzQAApJ68pOnop6wm8GQU/edit#gid=0 Restore Crex Checklist] (June-July 2020)
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</UL>
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* [https://misportal.jlab.org/mis/apps/physics/shiftSchedule/index.cfm?experimentRunId=PREX/CREX Shift schedule]
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<LI> The [http://media4.physics.indiana.edu/%7Echarlie/parity/index.html Trento 2000 Workshop] on Parity Violation.
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* [https://docs.google.com/spreadsheets/d/1XL5UY-VVrMkUwjbNzQ7xb6f4rYyqHwUpd034jckEjq0/edit#gid=662941510 Analysis shifts]
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</UL>
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* [[Information for Shift Takers | '''Information for Shift Takers''']]
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</font>
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* [[Run Coordinator Tools]]
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* [[Weekly Analysis Coordinator]]
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* [[RunPlanDaily_CREX | Daily Run Plan (CREX)]]
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* [[CommissioningSummary | PREX2-and-CREX Commissioning Summary]]
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* [[CREXRunPlan-August20 | CREX Summer Global Run Plan ]] and [[CREXAuxiliaryMeasurements-Aug2020 | Auxiliary Run Plan]]
  
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== Status and Plans ==
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== Meetings ==
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{| class="wikitable" border="1" style="width:100%; text-align:center;border-collapse:collapse"
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|-
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! style="width:8%"|  [[Daily Meetings | Daily ]] || style="width:8%"| [[PREX/CREX Collaboration Meetings  | Collaboration]] || style="width:8%"| [[HRS_Optics_Mtg | Optics ]] || style="width:8%"| [[DAQ_Meeting | DAQ ]] || style="width:8%"| [[Analyzer_Meeting | Analyzer ]] ||  style="width:8%"| [[BMOD | BMOD ]] || style="width:8%"| [[PREX2_Analysis | P2 Analysis ]] ||style="width:8%"| [[PREX/CREX Transverse | Transverse]] || style="width:8%"| [[Other meetings | Other]]
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|}
  
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<font color="Black">
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== Planning for 2020 Summer Run ==
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<UL>
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[[File:mascot_2.jpg|thumb|200px|right| PREX Mascot]]
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<li> A [http://hallaweb.jlab.org/parity/prex/worklist.html work list] &nbsp; (updated May, 2009) &nbsp; which supercedes Paul Souder's [http://hallaweb.jlab.org/parity/prex/pb_tasks_0306.pdf old work list] necessary to perform the experiment.  <font color="red">Schedule is March 2010 !</font>
 
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</li>
 
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<li> An index of [http://hallaweb.jlab.org/experiment/HAPPEX/minutes.html Meeting Minutes and Talks]
 
  
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</li>
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* Upcoming Schedule  -- <b><span style ="color:red">updated July 1, 2020</span></b> --
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<li> Working on a new [http://hallaweb.jlab.org/parity/prex/hamc Monte Carlo].
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** CREX Run starts Friday July 31
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</li>
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* [https://docs.google.com/spreadsheets/d/1PmtPS-q1BRj0tm99sO2sphhzQAApJ68pOnop6wm8GQU/edit#gid=0 Restore CREX Checklist] summer 2020
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<li>
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* [[ComingBackJLab|Things to do to come back to JLab after COVID-19]]
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Here are recent (Dec 5, 2007) [http://hallaweb.jlab.org/parity/prex/adc18 diagrams of the 18-bit ADC] &nbsp; and the somewhat older
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* [[Task-List-Landing | TaskList]] for 2019 (somewhat obsolete)
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[http://hallaweb.jlab.org/parity/prex/ADC_18bit.pdf schematic] from Fernando Barbosa.
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* [https://photos.app.goo.gl/4ju3cTnax3BKFgS98 CREX Installation Photo Album]
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</li>
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* [https://photos.app.goo.gl/wYxbx9VZjKDarMuUA PREX Installation Photo Album]
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<li>
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* [[RunPlanDaily_CREX|CREX Daily Run Plan]]
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Here is Paul's [http://hallaweb.jlab.org/parity/prex/paul_transverse.pdf note on slits for transverse] asymmetry systematic (March, 2009). 
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* [[CREXRunPlan-August20|CREX August 2020 Global Run Plan]]
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* [[CREXRunPlan|CREX Global Run Plan]]
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* [[PostTargetRecoveryRunPlan|Post Target Recovery Run Plan]]
  
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</li>
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== Useful Links ==
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<li><font color="green">SEPTUM</font>
 
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<ul>
 
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<li> Here is a [http://hallaweb.jlab.org/parity/prex/prex_magnet.pdf Test plan for Septum] magnet to be done in <font color="blue"> Nov 2009 </font>.
 
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</li>
 
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<li> Some [http://www.jlab.org/%7Emhodges drawings of the 5 degree septum] &nbsp; courtesy M. Hodges. &nbsp; See also sept*.pdf in &nbsp;  [http://hallaweb.jlab.org/parity/prex/pics pics]
 
  
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</li>
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[https://docs.google.com/spreadsheets/d/1SngpqgLLULtcuKD0t9k-A2Cpmxy1jb5bIYnnP8f8zPM/edit?usp=sharing opticsSpreadSheet]
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</ul>
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[https://prex.jlab.org/wiki/images/f/fc/Shift.pdf Table for offline runlist]
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</li>
 
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<li><font color="green">COLLIMATOR</font>
 
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<ul>
 
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<li> Overview of [http://hallaweb.jlab.org/parity/prex/paul_collim.xfig.pdf collimator] to put in the mouth of Q1.
 
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</li>
 
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<li> Some [http://hallaweb.jlab.org/parity/prex/paul_collim_spec.xfig.pdf specs for collimator] to help engineer it.
 
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</li>
 
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<li> Possible way to [http://hallaweb.jlab.org/parity/prex/photon_top.xfig.pdf stop 2-bounce photons]
 
  
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</li>
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[[P2ComptonAnalysis | ComptonAnalysisSummary]]
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<li> The specification to [http://hallaweb.jlab.org/parity/prex/paul_collim_taper.xfig.pdf taper the sides] to reduce slit scattering.
 
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</li>
 
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</ul>
 
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</li>
 
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<li><font color="green">TARGET</font>
 
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<ul>
 
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<li> <font color="blue">Oct 2009</font> &nbsp; Proposed target ladder:
 
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<ul>
 
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<li> During the &nbsp; [http://hallaweb.jlab.org/parity/prex/prex_target_optics.xfig.pdf optics and calibration phase]
 
  
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</li>
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{| class="wikitable" border="1" style="width:100%; text-align:center;border-collapse:collapse"
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<li> During the &nbsp; [http://hallaweb.jlab.org/parity/prex/prex_target.xfig.pdf production mode]
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|-
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</li>
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! style="width:10%"| [https://prex.jlab.org/wiki/index.php/Category:HOW_TO HOWTO]
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</ul>
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! style="width:9%"| [https://hallaweb.jlab.org/rcdb/ RCDB]
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</li>
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! style="width:9%"| [https://logbooks.jlab.org/book/halla HALOG]
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<li> [http://hallaweb.jlab.org/parity/prex/prex_tgt.doc Target info] for the Jan 2008 test run.
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| style="width:9%"| [http://ace.phys.virginia.edu/HAPPEX/ HAPLOG]
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</li>
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| style="width:9%"| [https://prex.jlab.org/cgi-bin/DocDB/private/DocumentDatabase DocDB]
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<li>Here are
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| style="width:9%"| [https://hallaweb.jlab.org/wiki/index.php/Main_Page Hall A Wiki]
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[http://www.jlab.org/%7Emiller/PREX_E06002 Design Drawings from J. Miller]. &nbsp; And here are [http://hallaweb.jlab.org/parity/prex/pics/pbtgt.html assembly pics] (was for the Jan 2008 test run)
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| style="width:9%"| [https://hallaweb.jlab.org/dvcslog/compton/ compton]
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| style="width:9%"| [https://hallaweb.jlab.org/equipment/moller/ Moller Main], [https://hallaweb.jlab.org/equipment/moller/data Moller Data]
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</li>
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| style="width:9%"| [https://logbooks.jlab.org/book/polog POLOG]
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<li> Early tests Pb target.  &nbsp; See [http://hallaweb.jlab.org/parity/prex/lead_target.ps diagram of target] &nbsp; and &nbsp; [http://hallaweb.jlab.org/parity/prex/pbtgt_test.ps writeup about test] (postscript) &nbsp; and [http://hallaweb.jlab.org/parity/prex/pbtgt_test.pdf same, PDF]
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| style="width:9%"| [https://hallaweb.jlab.org/halog/screen_snapshots/controls/ Live Status], [https://hallaweb.jlab.org/halog/screen_snapshots/target/ Target]
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</li>
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| style="width:9%"| [https://hallaweb.jlab.org/parity/prex/onlinePlots/ Online Prompt]
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</ul>
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|}
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[[Category:Task List]]
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</li>
 
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<li> Polarimetry is crucial.
 
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<ul>
 
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<li> Here is a [http://hallaweb.jlab.org/parity/prex/mollfadc.pdf specification for Moller FADC] DAQ.
 
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</li>
 
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<li> In 2003 JLab held a [http://www.jlab.org/polarimetry/program.html Polarimetry Workshop]
 
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</li>
 
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<li> There is an idea to use [http://www.jlab.org/%7Egen/hyd atomic hydrogen polarimetry].
 
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</li>
 
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<li> Here is a [http://hallaweb.jlab.org/parity/prex/compton_upgrade.pdf draft of plans to upgrade] &nbsp; the &nbsp; [http://hallaweb.jlab.org/compton Compton polarimeter].
 
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</li>
 
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</ul>
 
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</li>
 
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<li> In Nov 2005 we had a 2 day run to test all aspects of the experiment at ~850 MeV. &nbsp; Results were explained in the 2005 propsal update (see talks, below).
 
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</li>
 
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</UL>
 
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</font>
 
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== Talks (including seminars and PAC Defenses)==
 
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<font color="Black">
 
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<UL>
 
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<li> Here was the recent [http://conferences.jlab.org/prex/program.html PREX workshop 2008] held at [http://www.jlab.org JLAB].
 
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</li>
 
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<li> Here are some [http://hallaweb.jlab.org/parity/prex/prextalks.html talks] about PREX at workshops, etc.
 
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</li>
 
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<li> An index of [http://hallaweb.jlab.org/experiment/HAPPEX/minutes.html Collaboration Meetings and Weekly  Meetings] &nbsp; plus some [http://hallaweb.jlab.org/parity/mtg older stuff].
 
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</li>
 
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</UL>
 
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</font>
 
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== Slides ==
 
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<font color="Black">
 
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<UL>
 
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<LI>
 
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Here are some [http://hallaweb.jlab.org/parity/prex/oldslides.html old transparencies].
 
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</LI>
 
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</UL>
 
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</font>
 
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== External Links ==
 
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<UL>
 
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<LI> [http://hallaweb.jlab.org/parity/prex PREX experiment web site]
 
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<LI> [http://conferences.jlab.org/prex/program.html 2008 PREX Workshop]
 
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</UL>
 
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== Contributing to this PREX wiki ==
 
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* To get a new account: click login.
 
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* Where the page invites you to obtain an account click "request one" and follow the instructions.
 
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* I'll get an e-mail, will approve you and you'll get a password by e-mail.
 
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Consult the [http://meta.wikimedia.org/wiki/Help:Contents User's Guide] for information on using the wiki software.
 
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div class="right"><a href="">Top of page</a></div>
 
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<big>'''MediaWiki has been successfully installed.'''</big>
 
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== General Info about Wiki ==
 
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* [http://www.mediawiki.org/wiki/Manual:Configuration_settings Configuration settings list]
 
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* [http://www.mediawiki.org/wiki/Manual:FAQ MediaWiki FAQ]
 
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* [https://lists.wikimedia.org/mailman/listinfo/mediawiki-announce MediaWiki release mailing list]
 

Latest revision as of 14:51, 1 November 2022

PREX Contact Information
Hall A Phone Book
PREX Wiki Info
Old Main Page
Documentation
HOW TOs for shift crew
Expert Tools

Welcome to the PREX/CREX Wiki !

The purpose of this Wiki is to organize information relevant to the running experiment, and to foster communication and collaboration. For more information, see the webpage at Lead Radius Experiment ("PREX") or .

If you are looking for the March 18-20th Hall A beam tests information please go to: webpage

Please find the PREX II Wiki Main page HERE

Find the Covid-19 restoration plan here (May 29th)


CREX Shift Information

Contact information

  • Direct Counting-House Always-On Bluejeans connection: https://bluejeans.com/779147679. Also by phone dial 18882402560, key in 779147679 ##.
  • RC phone: 757-876-1787
  • Cordless phone (Target Operator): 757-269-5658
  • Shift leader phone (try not to use this): 757-269-5501

Useful links

Meetings

Daily Collaboration Optics DAQ Analyzer BMOD P2 Analysis Transverse Other

Planning for 2020 Summer Run

PREX Mascot

Useful Links

opticsSpreadSheet Table for offline runlist

ComptonAnalysisSummary

HOWTO RCDB HALOG HAPLOG DocDB Hall A Wiki compton Moller Main, Moller Data POLOG Live Status, Target Online Prompt
Retrieved from "https://prex.jlab.org/wiki/index.php?title=Main_Page&oldid=12919"