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Use this interface to pick a CLAS12 task that you would like to contribute to. Everyone can contribute but please pick tasks that match your expertise. At the end of the year, make sure that the tasks that you were responsible for are included into your institute's SoS and reviewed by your IR before the SoS is submitted to the CLAS Service Work Committee.
CLAS12 Task List
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| Subsystem | Task | Description | Category | FTE/year | Contact(s) | Due date | Recurrence | Responsible |
| DC | Drift Chamber Positioning Survey and Torus Field Mapping | Develop methods to place/survey marks on the torus to which the magnetic field
measurements will be referenced, and also to which corresponding marks on the
chambers will be aligned, either visually by surveyors or perhaps using
proximity sensors. Develop equipment and techniques to measure the torus
magnetic field to a part per thousand. Starts in 2014. Expertise required: Not specified |
Hardware | 0.300 | Mac Mestayer | December 31, 2014 | 4 hrs/wk. 2 mo (design); 8 hrs/wk. 8 mo (constr.); 2 mo data+ana | none |
| SVT | SVT tests | Help needed for the SVT project, related to electrical testing of the SVT
modules (cosmic ray tests and data analysis). Currently the SVT project has one
engineer and some technicians. Expertise required: Basic knowledge of c++ and root framework. |
Hardware | 0.500 | Amrit Yegneswaran | December 31, 2014 | 2 days/week | none |
| CTOF | Monte Carlo | MC Simulation of the CTOF readout. Expertise required: PhD student |
Software | 0.500 | Vitali Baturin (Maurizio Ungaro) |
December 31, 2014 | Not specified | none |
| CTOF | Laser Calibration refurbishment | Refurbish the Laser Calibration System (LCS) for 96 channels (possible task for
KNU). Expertise required: PhD Student |
Hardware | 0.500 | Vitali Baturin | December 31, 2014 | Not specified | none |
| Other | Slow controls | This task concerns: FTOF, FCAL, PCAL, DC, SVT, Micromegas, CND, CTOF, Forward
Tagger, RICH, Moeller, Beamline, HTCC.
Define the Slow control requirements in terms of configuration and monitoring.
Write shell scripts or code to do any initialisation of the hardware and any
other slow control tasks.
Develop any GUI's required for monitoring / interacting with the hardware.
Expertise required: PhD student. Basic knowledge of Unix/Linux. Expertise required: PhD student. Basic knowledge of Unix/Linux |
Software | 0.300 | Kenneth Livingston | December 31, 2014 | 3 months between between June 2013 - Dec 2014 | none |
| CTOF | Software for the LCS | Software for the Laser Calibration System. LabView for motor motion and filter
motion. Expertise required: PhD Student |
Software | 0.200 | Vitali Baturin | December 31, 2014 | Not specified | none |
| DC | Monitoring Software | Develop procedures to display relevant track reconstruction parameters during
online data-taking; including histograms of hit wires (raw and used on tracks),
as well as time distributions, and various track-related quantities, such as
number of hits per track, the time-differences of neighboring hits, perhaps the
number of clusters found per event per region, etc. Expertise required: Not specified |
Software | 0.100 | Mac Mestayer | June 30, 2014 | Start in 2014; 4 - 8 hrs/wk. for 1/2 year | none |
| CTOF | LCS tests | Standalone testing of the LCS at JLAB Expertise required: PhD student |
Hardware | 0.200 | Vitali Baturin | April 30, 2014 | Two months in 2014, start time- Feb. 2014. | none |
| DC | Track Reconstruction Software | Write programs to identify clusters of hit wires, to identify possible track
segments within the clusters, and to link the segments from various superlayers
to form the hit ensemble used for track-fitting; also develop codes to produce
trajectories through magnetic field regions and to calculate intersections with
wire planes and to calculate distances of closest approach to wires. Form
methods to estimate the chi-squared of such tracks and to adjust the track
parameters to search for the minimum chi-squared track. Expertise required: Not specified |
Software | 0.200 | Mac Mestayer | Dec 31, 2013 | Start in 2012 or 2013; 4 - 8 hrs/wk. for one year | none |
| FTOF | Develop FTOF timing calibration software suite | Work to develop FTOF timing calibration software suite - replacement of GAMECOCK
software - for panel-1a, 1b, and 2. Expertise required: Programming and code development expertise needed |
Software | 0.300 | Daniel Carman (Dennis Weygand) |
Dec 31, 2013 | Oct. 2012 - Dec. 2013 | CMU (Haiyun Lu) since Apr 3, 2013 |
| DC | Drift Chamber Hit Reconstruction Software | Develop the geometry codes to locate the wires in space with provisions for
misalignments, misplacements and distortions. Also, develop codes to correct raw
time values for fixed cable offsets and time-walks as well as codes to calculate
the likely distance of closest approach of a track to a wire as a function of
the corrected drift time, including corrections for varying ionization
(beta-dependent) and different 'local angle' of the track as it passes through
the cell. Expertise required: Please specify the expertise required from the person who volunteers for this task |
Software | 0.200 | Mac Mestayer | Dec 31, 2013 | Start in 2012 or 2013; 4 - 8 hrs/wk. for one year | none |
| FTOF | Software development | Work to develop code to combine timing information from panel-1a and 1b to
optimize timing resolution. Expertise required: Programming and code development expertise needed |
Software | 0.100 | Daniel Carman (Dennis Weygand) |
Dec 31, 2013 | Oct. 2012 - Dec. 2013 | unknown (Guest) since Apr 2, 2013 |
| DC | Databases creation | Create several data-bases:
1) a calibration data-base which holds the various time offsets needed to
convert raw TDC time to drift time, as well as the parameters needed to convert
drift time to drift distance, 2) an equipment malfunction data-base which keeps
a record of the status of various pieces of hardware: high voltage, low-voltage,
on-chamber boards, ADB/TDC boards, individual channels; the status will include
dates of change of status to allow Monte Carlo programs to follow the status of
parts of the chamber which might change mid-run-period, 3) a construction
data-base which records the receipt and acceptance testing of the components;
especially the electronics; it should also record the time-dependent measurement
of wire tensions, and, ideally, the results of various surveys of the chambers Expertise required: Not specified |
Software | 0.200 | Mac Mestayer | Dec 31, 2013 | Start in 2012 or 2013; 4 - 8 hrs/wk. for one year | none |
| FTOF | Analysis of cosmic ray data | Assist few days/week periodically on analysis of cosmic ray data Expertise required: Not specified |
Software | 0.100 | Daniel Carman | Dec 31, 2013 | Few days/week periodically | none |
| CTOF | Magnetic Shield Tests | Dynamical Magnetic Shield Tests at 1500G fringe fields (possible task for
Saclay, we have no space to run our SC Solenoid at Jlab). Expertise required: At least PhD student |
Hardware | 0.200 | Vitali Baturin | Nov 30, 2013 | Two months in 2013, start time Sep 2013. | none |
| FTOF | HV calibration software | Work to update existing HV calibration suite for online HV setting and gain
matching - replacement of tofHVcalib software. Expertise required: Programming and code development expertise needed |
Software | 0.200 | Daniel Carman (Dennis Weygand) |
Sep 27, 2013 | Oct. 2012 - Dec. 2012, 6 to 8 m-w of effort | none |
| FTOF | Time walk correction | Work to develop time walk correction code based on existing USC algorithms using
cosmic ray tracks. Expertise required: Programming and code development expertise needed |
Software | 0.100 | Daniel Carman | Sep 27, 2013 | Oct. 2012 - Mar. 2013 | ODU (Chandra Nepali) since October 15, 2012 |
| DC | Commissioning Team Member | Help with the myriad jobs during commissioning time: connecting cables,
connecting and monitoring gas systems, turning on systems, looking at signals on
'scopes, setting discriminator voltages, minimizing noise, looking at raw TDC
output, checking channel to wire maps, looking at online monitoring plots and
finally at the output of tracking from either cosmics or beam-produced particles. Expertise required: Not specified |
Hardware | 0.250 | Mac Mestayer | Jun 30, 2013 | Start in 2014; 20 hrs/wk. for 1/2 year | none |
| FTOF | Software for timing calibration | Work to develop software suite for timing calibration using 3-bar method for
FTOF cosmic ray test stand. Expertise required: Not specified |
Software | 0.500 | Daniel Carman (Dennis Weygand) |
May 31, 2013 | Nov. 2012 - May 2013, 16 to 20 m-w of effort | none |
Completed CLAS12 Service
Completed tasks are listed here and should be copied to the SoS of the contributing institute at the end of the year. Completed tasks can not be deleted from this table.
| Subsystem | Task | Description | Category | Contact(s) | Start Date | End date | Recurrence | Responsible | FTE Accumulated |
| PCAL | QC Measurements | Assist 1 day/week for 1 year on QC measurements. | Hardware | Stepan Stepanyan | September 28, 2012 | Apr 3, 2013 | 1 day/week for one year | YEREVAN (Gegham Asryan) | 0.200 |
| PCAL | Database management of QC data | Assist 1 day/week for 1 year on database management of QC data | Hardware | Stepan Stepanyan | December 31, 1969 | Apr 3, 2013 | 1 day/week for 1 year | none | 0.200 |
| FTOF | Refurbishment | Assist with work on refurbishment and testing of panel-1a and panel-2 arrays. | Hardware | Daniel Carman | December 31, 1969 | Apr 3, 2013 | Aug. 2012 - Jun. 2013 | none | 0.500 |
| CTOF | Software for the LCS | Software for the Laser Calibration System. LabView for motor motion and filter motion. | Software | Vitali Baturin | Apr 1, 2013 | Apr 1, 2013 | Not specified | JLAB (Volker Burkert) | 0.000 |
| FTOF | Software suite for HV setting | Work to develop software suite for HV setting and gain matching for FTOF cosmic ray test stand. | Software | Daniel Carman | December 31, 1969 | December 31, 2012 | Aug. 2012 - Dec. 2012; 4 m-w of effort | none | 0.100 |
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