Difference between revisions of "October 23, 2013 tracking CDC/FDC"
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== Meeting Time and Place == | == Meeting Time and Place == | ||
Wednesday October 23, 2013 at 11:00am | Wednesday October 23, 2013 at 11:00am | ||
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== Hardware Agenda == | == Hardware Agenda == | ||
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# Calibration Discussion | # Calibration Discussion | ||
| + | #* [https://halldweb.jlab.org/wiki/images/3/31/Tracking_WG-102313.pdf Questions from Sean] | ||
| + | |||
| + | == Minutes == | ||
| + | Present: Curtis, Naomi, Beni, Simon, Sean | ||
| + | |||
| + | #Calibrations | ||
| + | #*Discussion centered on Sean's slides of questions | ||
| + | #*The functions asic_response and cdc_wire_signal HDGeant/hitCDC.c are not used in typical reconstruction | ||
| + | #*It was thought sensible to include wire-dependent gain calibrations, start with all set equal | ||
| + | #*Could approximate wire sag as being the same for all straws. | ||
| + | #*Is there still room for scintillator paddles below and above the magnet? | ||
| + | #*Naomi will send Sean her [[CDC_60_40 | wiki link]] which outlines a routine for finding gas mix and time offset. | ||
| + | #*With the 6 ft x 8" paddles at CMU at least 4 days running is needed to get useful data for resolutions. | ||
| + | #*In a 24 hour run, O(100,000) events are recorded in the FDC | ||
| + | #*It would be useful to record data from cosmics with the magnet on. | ||
| + | #*The position of FDC planes need to be carefully determined once it is inserted, since there seems to be some shifts in the z-direction when looked at with cosmics | ||
| + | #*Sean: It would be good to sit down at some point and review which reconstruction/simulation parameters should be in the CCDB and which should be in the libraries | ||
Latest revision as of 06:39, 1 April 2015
Meeting Time and Place
Wednesday October 23, 2013 at 11:00am At Jefferson Lab, the meeting will be held in F326
Connections
To connect from the outside, please use ESNET
- ) ESNET: 8542553
- )To connect by telephone, dial:
- You can look up toll-free number at http://www.readytalk.com/intl
- US and Canada: (866)740-1260 (toll free)
- International: (303)248-0285 (toll call)
- enter access code followed by the # sign: 3421244#
Hardware Agenda
- Calibration Discussion
Minutes
Present: Curtis, Naomi, Beni, Simon, Sean
- Calibrations
- Discussion centered on Sean's slides of questions
- The functions asic_response and cdc_wire_signal HDGeant/hitCDC.c are not used in typical reconstruction
- It was thought sensible to include wire-dependent gain calibrations, start with all set equal
- Could approximate wire sag as being the same for all straws.
- Is there still room for scintillator paddles below and above the magnet?
- Naomi will send Sean her wiki link which outlines a routine for finding gas mix and time offset.
- With the 6 ft x 8" paddles at CMU at least 4 days running is needed to get useful data for resolutions.
- In a 24 hour run, O(100,000) events are recorded in the FDC
- It would be useful to record data from cosmics with the magnet on.
- The position of FDC planes need to be carefully determined once it is inserted, since there seems to be some shifts in the z-direction when looked at with cosmics
- Sean: It would be good to sit down at some point and review which reconstruction/simulation parameters should be in the CCDB and which should be in the libraries
