During HAPPEX period (Aug-Oct 09)

• Latest scaler maps: 
• right HRS, left HRS (maintained by Xiaoyan, most complete, including both scaler channels and variable names)
• right HRS, left HRS (maintained by Xiaochao, including scaler channels)
• right HRS, left HRS (maintained by Ramesh).

Installations (July-Aug 09)

• How to run standalone HAPPEX DAQ: text.
• How to run the HRS DAQ: text.
• Map/table for NIM/ECL, scalers, and TDCs on the Right PVDIS setup: PDF.
• Hall A writeup on helicity structure EDT, T1 formation,

Test Runs (2008-June 2009)

• Test run online analysis instructions: HAPPEX/PAN analysis (PDF, ODT); HRS/Analyzer analysis (PDF, ODT);
• Test run run-sheets: HRS (PDF, ODT); HAPPEX (PDF, ODT);
• Test run TOSP and Target instructions (PDF, ODT);
• For our most recent progress from the May-June 2009 running, see our weekly meeting reports.
• To do/fix list for the January 09 down time, click here.
  
• 2008 Test Run Progress (last updated 12/16/2008)
• Ramesh's instruction for adjusting detector HVs;
  
• Xiaoyan's instruction for running the stand-alone (simple) PVDIS scaler analysis;
• Useful Links
• Hall A logbook
  
• HAPlog

DAQ Design

• The current plan is to install the new DAQ HRS-L during the June/July 2009 down time. The DAQ is already installed in HRS-R:
  
• Diagrams for three possible grouping methods for the LHRS: PS, PDF, PNG;
• Diagram for the RHRS DAQ setup: click PS (tabloid size), PDF,  PNG;
• Progress on the JLab-made NIM/ECL Level Translator:
  • (May 21, 2007) First prototype test results by Chris: PDF;
  • (May 14, 2007) Block diagram for the level translator by Chris: PDF;
  • (Mar. 29, 2007) Preliminary cost estimate for the level translator by Chris: PDF;
  • (Mar. 7, 2007) Here is the latest design specification for the NIM-ECL level translator: PDF and the test plan: PDF;

• (Oct 12, 2005, HAPPEX Collaboration Meeting): Report on trigger simulation showing the performance of the trigger schemes proposed.

• (Aug 30, 2006) Here is a detailed proposed trigger from Albert Shayinyan and Bogdan Wojtsekhowski, which are based on the trigger/DAQ schematic of Aug 14 but have full practical detail. Note, it uses the idea of one column of preshower and 4 columns of shower, and the two HRS are identical. Some custom electronics would be needed, easily produced at JLab.
  • Logic idea of AS & BW
  • Grouping of leadglass
  • Trigger for one HRS
  • Layout of racks
  • Custom auxiliary electronics
  
  
• Trigger/DAQ schematic   (Bob's draft 14 Aug 06)

• Earlier DAQ Meeting Minutes
  • 01/25/2005  02/09/2005