Difference between revisions of "2011 Hall B FCAL Beam Test"
From GlueXWiki
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we should be fine (the total rate on the CLAS tagger should be on this order). | we should be fine (the total rate on the CLAS tagger should be on this order). | ||
* All thresholds on discriminators have been adjusted to 50 mV. | * All thresholds on discriminators have been adjusted to 50 mV. | ||
− | + | * List of electronics to be used, from left to right: | |
+ | ** [http://www.fnal.gov/projects/ckm/jlab/726-spec.htm Phillips 726 ECL/NIM/TTL Translator] - final translation of NIM signal to TTL for input into fADC | ||
+ | ** [http://www-esd.fnal.gov/esd/catalog/main/lcrynim/465-spec.htm LeCroy 465 Triple 4-Fold Logic Unit (I)] - AND of remote trigger and 3 horizontal signals | ||
+ | ** [http://www-esd.fnal.gov/esd/catalog/main/lcrynim/465-spec.htm LeCroy 465 Triple 4-Fold Logic Unit (II)] - AND of remote trigger and 3 vertical signals | ||
== Beam Rates == | == Beam Rates == |
Revision as of 22:19, 19 October 2011
Contents
2011 Hall B FCAL Beam Test
Schedule
Beam
- 2011/11/19 (Sat) beam start
- 11/19/2011 (Sat) 11/20/2011 (Sun) COMMISSIONING
- 11/21/2011 (Mon) 12/04/2011 (Sun) 4446 4 Lin 14
- 12/05/2011 (Mon) 12/18/2011 (Sun) 4446 4 Lin 14
- 12/19/2011 (Mon) 12/21/2011 (Wed) 4446 4 Lin 3
- 12/22/2011 (Thu) 01/03/2012 (Tue) WINTER DOWN
- 01/04/2012 (Wed) 01/13/2012 (Fri) 2528 3 Cir 10 special Hall A Ee
- 01/14/2012 (Sat) 01/24/2012 (Tue) 2254 2 Cir 11
- 01/25/2012 (Wed) 01/26/2012 (Thu) 4446 4 Lin 2 special Hall A
- 01/27/2012 (Fri) 02/10/2012 (Fri) 2254 2 Cir 15
- 02/11/2012 (Sat) 02/24/2012 (Fri) 5542 5 Lin 14
- 02/25/2012 (Sat) 03/09/2012 (Fri) 5542 5 Lin 14
- 03/10/2012 (Sat) 03/23/2012 (Fri) 5542 5 Lin 14
- 03/24/2012 (Sat) 04/06/2012 (Fri) 5542 5 Lin 14
- 04/07/2012 (Sat) 04/14/2012 (Sat) 4446 4 Lin 8
- 04/15/2012 (Sun) 04/16/2012 (Mon) EXCHANGE TARGET, NO BEAM
- 04/17/2012 (Tue) 04/18/2012 (Wed) 4446 4 Lin 2
- 04/19/2012 (Thu) 04/20/2012 (Fri) 4446 4 Lin 2
- 04/21/2012 (Sat) 04/22/2012 (Sun) 4446 4 Lin 2
- 04/23/2012 (Mon) 04/24/2012 (Tue) 5542 5 Lin 2
- 04/25/2012 (Wed) 04/26/2012 (Thu) 5542 5 Lin 2
- 04/27/2012 (Fri) 04/28/2012 (Sat) 5542 5 Lin 2
- 04/29/2012 (Sun) 04/30/2012 (Mon) 5542 5 Lin 2
- 05/01/2012 (Tue) 05/04/2012 (Fri) 2254 2 Cir 4
- 05/05/2012 (Sat) 05/09/2012 (Wed) INSTALL RASTER, SET BEAMLINE, NO BEAM
- 05/10/2012 (Thu) 05/17/2012 (Thu) 2254 2 Lin 8 e+ HD performance tests
- 05/17/2012 (Thu) Start of 12 GEV SHUTDOWN
Construction
- Target date to finish construction - 11/02/2011 (Wed)
- Drive from IU to JLab for installation - 11/03/2011 (Thur)~
Electronics
- Have put together NIM modules at IU, no need to borrow any NIM modules
- Have tested inputs/outputs, all units working
- Output widths of all NIM modules with adjustable widths set to 50 ns. As long as the rate of electrons coming in is less than 20 MHz,
we should be fine (the total rate on the CLAS tagger should be on this order).
- All thresholds on discriminators have been adjusted to 50 mV.
- List of electronics to be used, from left to right:
- Phillips 726 ECL/NIM/TTL Translator - final translation of NIM signal to TTL for input into fADC
- LeCroy 465 Triple 4-Fold Logic Unit (I) - AND of remote trigger and 3 horizontal signals
- LeCroy 465 Triple 4-Fold Logic Unit (II) - AND of remote trigger and 3 vertical signals
Beam Rates
- The difference between the two figures seems to stem from the scintillating fibres having
directional dependence on the incoming electrons. Without any veto on the incoming electron direction, it seems we will be saturated with scattered electrons.
- Also note that these measurements were done near the end of the beam, where there is
lots of scattering as the main beam exits the vacuum.
Links
- Proposal Document on GlueX docDB (contains 1 page executive summary)
- Kei Moriya Talk at GlueX Collaboration Meeting 2011 October@JLab
- Hall B HD-ICE webpage
- Hall B HD-ICE wiki, with link to run schedule
Personnel Available for Datataking
- IU
- Kei Moriya (time centered around November 7th not available due to birth of child)
- Regina