[Cuga] JLab Weekly Briefs - a message from Kandice Carter

[Kandice Carter]

To access the full version of the JLab Weekly Briefs, visit: https://www.jlab.org/news/briefs/latest 

February 8 Briefs Excerpts: 

12 GeV Upgrade - Hall B Update 
Starting on Feb. 3, high-energy beam was delivered to the upgraded CLAS12 spectrometer for the first time. The beam delivery and the performance of the new Hall B spectrometer was quite impressive, as was the commitment of the Accelerator Operations crew and the CLAS12 collaboration in reaching this important event. Beam delivery throughout the weekend was of high quality. All components of CLAS12 (Torus, Detectors, Electronics, Data Acquisition) worked well, and the CLAS12 team was poised for real-time analysis, monitored through event displays and histograms that had been vetted in advance using cosmic rays. This beam run was focused on demonstrating the Key Performance Parameter (KPP) required for completion of this part of the 12 GeV Upgrade Project. The CLAS12 data from the weekend run has been reviewed by DOE, and concurrence that the KPP has been met was received on Feb. 7, 2017. Congratulations to everyone involved in the achievement of this important milestone! 

12 GeV Upgrade - Hall C Update 
Thanks to the talented efforts of many hard-working individuals during a dedicated period of leak-checking, pressure-tests and welding, the in-place assembly of the Super High Momentum Spectrometer dipole magnet in Hall C has been completely finished. The magnet is now being slowly cooled down, a process that is expected to take about two weeks. The Q3 quadrupole magnet was also pressure-tested and is cooled down. It is filled with liquid helium, fully instrumented and connected to its power supply. Following verification of the interlocks and instrument readings, the low-power testing of Q3 has begun. Final alignment is underway for all of the SHMS magnets, the target scattering chamber, and the upstream and downstream beam pipes. When all five spectrometer magnets are tested and operational, all vacuum systems closed, and the last detector and concrete blocks installed, Hall C will be ready for its beam run to demonstrate the KPP required for completion of this part of the 12 GeV Upgrade Project. 

Physics - Hall D Update 
The first physics run of the GlueX experiment started a week ago, one year after the engineering run demonstrated that the experiment had achieved the designed parameters. A limited amount of physics-quality data collected during the engineering run has already superseded the existing polarized photoproduction data in the given energy range. It allowed the GlueX collaboration to study beam asymmetry effects in pseudoscaler photoproduction, resulting in the first GlueX physics paper recently submitted to Physical Review Letters. This also happens to be the first Jefferson Lab physics result from the 12 GeV upgrade. 

Critical CUE Software Updates Set for Thursday, Feb. 9 
Several critical patches will be released early Thursday morning to all Jefferson Lab Windows desktop systems managed through the Common User Environment (CUE). These patches address critical vulnerabilities in Firefox, Thunderbird, Adobe Flash Player, Adobe Acrobat Reader and Java. Plan to reboot your desktop or restart software, as necessary, to finalize these patch installations. If you have any questions or concerns about these patches, contact the IT Division Helpdesk at helpdesk at jlab.org or x7155. 

Jefferson Lab Encourages Digital Literacy with Hour of Code Event 
To help raise awareness of the need for digital literacy, volunteers from Jefferson Lab’s Information Technology Division and Science Education staff joined forces in December to provide more than 60 local students with the opportunity to experience basic computer programming through the lab’s Hour of Code campaign during the 2016 Computer Science Education Week. Read the full story here: https://www.jlab.org/news/stories/jefferson-lab-encourages-digital-literacy-hour-code-event 

Physics Seminar: From Light Hadrons to Charm: Early Results from the GlueX Experiment 
The primary goal of the GlueX experiment is to study gluonic degrees of freedom in QCD by mapping the light meson spectrum, with a focus on searching for and studying hybrid mesons. Sean Dobbs, Northwestern University, will discuss the current status of the experiment, present several results from the commissioning run, including the first observation of the charmed meson J/psi at Jefferson Lab, and discuss the future outlook of the experiment. The seminar will be held in the CEBAF Center auditorium at 4 p.m. on Thursday, Feb. 16. 

Jefferson Lab Benefits Open Enrollment Begins Wednesday, Feb. 15 
Attention all regular and term employees: The 2017 Benefits Open Enrollment starts on Feb. 15 and will continue through Feb. 28. This is the time of the season for you to review and, if necessary, modify your benefits options. More information is coming soon. 

Reminder: TIAA-CREF Individual Counseling Sessions Offered 
TIAA-CREF is offering Individual Counseling Sessions, where you can discuss your personal financial situation with a TIAA-CREF financial consultant on a confidential basis. The consultant will be available at Jefferson Lab on Feb. 9, March 14 and April 19 in Support Service Center room 22i. To schedule an appointment, call TIAA-CREF at (800) 732-8353, Monday through Friday, 9 a.m.–8 p.m. (ET). 

To access the full version of the JLab Weekly Briefs, visit: https://www.jlab.org/news/briefs/latest 

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