Jefferson Lab Weekly Briefs June 10, 2015

Jefferson Lab Weekly Briefs
June 10, 2015

12 GeV Upgrade

Hall B – CLAS12 Magnets
The seventh Torus Coil (i.e. first of two spare coils) arrived in its coil case from FNAL on May 28 and was prepared for testing at LN2 temperatures. The sixth coil has completed this test and has had its first multi-layer insulation (4K) added followed by the thermal shield. The fifth coil has been welded into its cryostat, moved to Hall B, and mounted on the cold hub as of June 5.
Splices of the conductor running between coils have been completed inside three (of 6) supporting hex beams. The required instrumentation and insulation has been added in preparation for the addition of thermal shields and vacuum jackets later this year. The vendor contracted to build the distribution can for the cryogenics for both the Torus and Solenoid magnets has received the materials and is proceeding with assembly. The fabrication of the cryogenics control can, which will serve as the Torus Service Tower, has commenced in parallel at Jefferson Lab.
The power supplies for the two magnets were delivered and have been located on the space-frame platform upstream of the experiment in preparation for running power and water to them.  Fabrication of the instrumentation chassis and racks, together with the cable harnesses and needed firmware, is also progressing.

The vendor for the Solenoid magnet has finished winding the second of the five major coils needed for that magnet and expects to complete all windings by early Fall.


Hall B SAF111 Safety Awareness Walk Through Training
There will be SAF111 Hall B Safety Awareness Walk through Training on Thursday, June 11, starting at 2 p.m. in the Hall B Counting House control room. To take the training, go to the web-based training site or the Hall B webpage and click the SAF111 link. Read and acknowledge the reading material by clicking the "Click to Update" button at the end of the document. The training will be conducted by Doug Tilles. Please print out the pdf document and bring it with you for the walk through.

Published Journal Articles, June 1-5, 2015
A. Lovato, S. Gandolfi, J. Carlson, Steven C. Pieper, R. Schiavilla.  "Electromagnetic and neutral-weak response functions of He4 and C12."  Phys. Rev. C 91, 062501(R) (2015).

Christian J. Shultz, Jozef J. Dudek, Robert G. Edwards.  "Excited meson radiative transitions from lattice QCD using variationally optimized operators."  Phys. Rev. D 91, 114501 (2015).

Tech note:
Jay Benesch.  "A detailed examination of the MDL field map and the TOSCA model of this '5 MeV' dipole."  JLAB-TN-15-017.

Center for Theoretical and Computational Physics

In a new paper <arXiv:1505.01803> the strange and electromagnetic form factors of the nucleon are computed at a pion mass of 317 MeV. Using a novel numerical methodology (hierarchical probing), developed using SciDAC support, high precision results are obtained for the contributions from quark disconnected diagrams.  The methodologies employed in this calculation are expected to provide the best determinations of nucleon form factors physical quark (pion) masses, once the suitable gauge configuration ensembles currently under development become available.

Computing and Networking Infrastructure

CNI Maintenance Day Tuesday, June 16, from 5-10 p.m.
There will be numerous service outages during the CNI maintenance period planned for June 16, from 5-10 p.m.  During this time, patches and configuration changes will be applied to Jefferson Lab's primary DNS server, ns1, as well as to the Zimbra file servers. These systems will be rebooted between 5:15 and 6 p.m. to finalize these updates. During this time, there will be a short outage to the Zimbra email system as well as a slowdown in internet connectivity while the DNS server is down. All connectivity to the DNS servers as well as to the Zimbra email system will be restored no later than 6 p.m.  In addition, there will be an outage of the MIS applications starting around 5:30. They should be back up by 6 p.m.  There may be intermittent outages of various central services throughout the maintenance period as updates to the central services network switches will be applied. Finally, Linux and Windows patches will be released to the site as well as updates to the core CUE software. Please plan on rebooting your desktop system no later than Friday, June 19, to finalize the patch installations. If you have any comments or concerns, contact the IT Division Helpdesk at, or x7155.

Jefferson Lab Calendar of Events
June 15: Safety-Shoe Truck at Lab
June 17-19: CLAS Collaboration meeting
June 26: Physics Seminar

Summer Science Education/Enrichment Programs
May 26-July 31: SULI/REU summer undergraduate internships
June 1-19: Hampton University Graduate Studies (HUGS) at JLab
June 8-12: Christopher Newport University Lifelong Learners
June 22-July 31: High School Summer Honors Program internships
July 27: Start of UVa/JLab summer teacher program at JLab
July 31: Summer intern poster session

Environment, Safety, Health and Quality

JLab Construction Zone Safety Reminders
With summer weather upon us (rain not withstanding) everyone is seeing more of the construction projects underway around the lab – with more to come! Some jobs are subtle, such as the communication loop behind the buildings around the perimeter of the Accelerator, the soon-to-be-finished new cables for the upgraded Accelerator power system, and the new, larger capacity cooling towers installed for the Accelerator that will be ready to use shortly. Additionally, an improved cooling tower will be installed behind Bldg. 92 as the existing one is being demolished. More obvious improvement projects include new cooling piping that will run from the east side of the Test Lab Addition, along the new pedestrian mall and to the north side of CEBAF Center. A planned expansion to Bldg. 57 will start shortly and will be highly visible along Hadron Drive. And beginning later this summer or early fall, a new office building will rise where the Radiation Control (RadCon) complex stood, also along Hadron Drive.
With all this construction activity underway and planned, Jefferson Lab employees and Users are asked to stay away from and heed the restrictions for entering lab construction zones and to be aware of the unique hazards posed in and around these areas. These sites are properly marked, fenced or barricaded to keep people from inadvertently entering. Over the coming months, these zones will likely impact your normal walking routes; start now to plan alternate paths and allow extra time when walking. One may be tempted to cut through when you don't see people in the construction zone. Don’t. There are dangers related to excavation activities, as well as moving materials, construction equipment, vehicles and building parts. You may not see the workers because they’ve all moved out of the way for safety reasons!

Unless you are properly trained, have the correct Personal Protective Equipment (PPE) including a contrasting vest, and have a purpose to be there, you should not enter any construction zone. And yes, JLab employees have been observed taking short cuts through these zones – endangering themselves and work progress in the process. Stay out of JLab Construction Zones; don't become an injury statistic.


JLab Announces New Chief Information Officer
Amber Boehnlein, the current division head of Scientific Computing Applications at SLAC National Accelerator Laboratory, has been named Jefferson Lab’s new Chief Information Officer and head of the lab’s Information Technology Division. She comes to Jefferson Lab with a wealth of knowledge, skills and experience from her years at SLAC, a Department of Energy appointment, and at Fermi National Accelerator Laboratory.  She is scheduled to arrive at JLab on June 22.
She has held the division head position at SLAC since 2011, where she gained expertise in computational physics relevant to light sources and large scale databases for astrophysics, as well as overseeing the hardware computing systems for the HEP program.  Prior to her time at SLAC, she served a three-year assignment as the Department of Energy’s Office of High Energy Physics program manager for the U.S. Large Hadron Collider Detector Operations program. During that time she also managed three Scientific Discovery Through Advanced Computing, or SciDAC, programs in the HEP office.
Prior to the DOE assignment, Boehnlein worked at Fermi National Accelerator Laboratory as a staff scientist in the Computing Division, ultimately being responsible for the computing and application support for all Fermilab-based experiments. From 1991-2013, Boehnlein was a member of the DØ experimental collaboration at Fermilab, which included serving as the collaboration’s computing and software coordinator from 1999-2006.
She has a particular interest in issues concerning the management and use of research data. She serves on national and international advisory boards in areas related to research computing and particle physics.

Python Training Planned for June 17
Jefferson Lab is going to hold Python Training in the ARC Auditorium Room 125 starting on June 17.  It will be held from 12:30 - 2 p.m. every Wednesday from June 17 through July 22 (six classes).  Python is a programing language.  Individuals interested in taking this training should register at:
The instructor will be Mike Collins from Christopher Newport University.  The course is meant to be an introduction into the Python programming language.  

LabVIEW User Group:  Using Ladder Logic in LabVIEW
Do you ever wish CompactRIO could be programmed or maintained with Ladder Logic? Learn about a new NILabs offering on the NI Linux RT based CompactRIO allowing the LabVIEW system designer the option to deploy ladder logic (or other IEC 61131 languages) applications on the NI platform. This is an exciting and experimental option to allow technicians the ability to interact with CompactRIO using tools they already understand, and a great way for LabVIEW developers to extend the usefulness of the CompactRIO and eliminate redundant PLC hardware from their system. This session will be held on Wednesday, June 24, from 12-noon – 1 p.m. in CEBAF Center conference room F224/225. The event is open to all members of the JLab community. Questions about LabVIEW may be directed to Christiana Grenoble, x5850

Weight Loss Support Group Weekly Meeting Update
The Weight Loss Support Group is currently at week 9 of its 12 week program.  The group’s total weight loss – as a group of 14 – is currently 119 pounds.  The group will start another 12 week session starting July 2.  If you are interested in joining, for support and advice on losing weight and getting in shape, call Barbara Rice at x 7238 for more information.

Discount Entertainment Tickets Available
Jefferson Lab offers a link to Tickets at Work, a website that offers employee discounts and corporate prices for entertainment. Locally, discounts include savings of more than 20 percent off at Busch Gardens and Water Country USA, as well as discounts on movie tickets. The site also offers discounts on tickets to other major theme parks, tickets to Broadway shows, hotels and rental cars.

Rad Worker I and Rad Worker II Classes Planned for July 7 and 14
A full day Radiation Worker I class (SAF801C) is being offered on Tuesday, July 7, from 9 a.m. to 5 p.m. A half-day Radiation Worker II class (SAF802) is being offered on Tuesday, July 14, from 9 a.m. to 12 p.m. Class locations will be announced.
If interested, please sign up through the Jefferson Lab Learning Management System (LMS) online at or contact Maya Keller at (x6021).

Be Sure to Get Credit When Completing Online Radiation Worker Training
When completing web-based training, such as Rad Worker I, SAF801C, you must click on the link at the end of the training to get credit for completing the online module.  Recently, Radiation Control has experienced a flood of individuals who indicate they went through the online training program but did not get credit.

All Members of JLab Community Asked to Take Employee Concerns Program Survey
Jefferson Lab is requesting all members of the lab community: employees, users and subcontractors to complete a quick survey about the Employee Concerns Program (ECP).  The lab's ECP is available to all employees, users, subcontractors, and others who interact with Jefferson Lab.  The survey is anonymous and participants are asked to respond no later than Friday, June 12. Human Resources staff thanks you in advance for your time and participation. 

Click on the following link to access the survey: and click on the DONE button when completed with the survey.

JLab Weekly Briefs is an ongoing publication providing information on the status of safety, accelerator operations, experiments, free-electron laser, reviews, upcoming activities and special events. Deadline for submission is every Tuesday by 10 a.m. Submit new items to: Public Affairs or contact Kandice Carter at x7263.