The U.S. Department of Energy's Thomas Jefferson National Accelerator Facility
Jefferson Lab's Open House is just around the corner, and this year's event will be bigger than ever, says Michelle Lechman, Open House planning committee chair.
Volunteer sign-up to help with the lab's 2012 Passport to Science Open House is underway and will continue through April 16. Hourly employees will be paid, with advance approval from their supervisors. Sign up online at: http://www.jlab.org/openhouse/volunteer.html.
Each volunteer will receive a T-shirt to wear while at the Open House. When signing up, be prepared to provide your T-shirt size and your cell phone number. There will be mandatory volunteer briefings scheduled by functional areas.
The sign up webpage lists volunteer positions by work location and functional assignment. Most positions offer morning and afternoon shifts for the Saturday, May 19, event. If you plan to work all day, be sure to sign up for a morning shift and an afternoon shift. Staff and users are encouraged to sign up as soon as possible. You may sign up adult family members, and your children over age 13 for volunteer positions that don't require JLab safety training. A JLab login is required to access the volunteer webpage.
Volunteers leading tours or staffing displays or activities for specific programs or locations should consult with that area's volunteer coordinator. Area volunteer coordinators are listed with taskings on the web sign up page.Please direct general-event volunteer questions to Open House Volunteer Coordinator Tina Menefee, ext. 5490, cell 768-4030 or email email@example.com.
Very few people can claim to be the first to see a new state of matter. Sarah Phillips wants to join those select few. Phillips took a step closer to that goal when she was named the recipient of the 2012 Jefferson Science Associates Postdoctoral Research Grant in mid-February.
Phillips, a research scientist at the University of New Hampshire, was selected for the grant by the Jefferson Lab Users Group Board of Directors, the governing body of the group that represents the scientists who use lab facilities to conduct research. In making the award, the board judged each applicant on his or her record of accomplishment in physics, proposed use of the research grant and the likelihood of further accomplishments in the research fields pursued at Jefferson Lab.
"Now in its 5th year, the JSA Postdoctoral Research Grant competition has once again attracted outstanding candidates who proposed truly innovative and unique projects to be funded by the prize money. The User Group Board of Directors had a difficult choice to make – we wish we could have funded them all!" said Sebastian Kuhn, users group board chairman and a professor of physics at Old Dominion University.
"Jefferson Lab has many outstanding scientists. We are pleased to support Sarah's research and all of us look forward to the results from her challenging experiment," said Hugh Montgomery, JSA president and Jefferson Lab director.
Phillips will use the $10,000 grant to build a piece of equipment for an experiment to see a predicted, but never-before-seen state of matter called true muonium. True muonium can be thought of as a rare atom made out of two particles that are similar to electrons, called muons. Muons are produced high above Earth when cosmic rays strike the atmosphere. Two types of muons, a muon and an antimuon, combine to form true muonium.
"It's quite rare. And I think that's probably why it hasn't been observed before. Unless you were specifically looking for it, you'd just completely miss it," Phillips says.
She hopes to add the search for true muonium to an existing experiment that will slam energetic electrons from Jefferson Lab's CEBAF accelerator into a target made of tungsten to produce heavy photons, which are particles that may interact with dark matter. According to theoretical calculations, this experiment is also likely to produce true muonium.
"We're expecting to only produce around 100 or 150 in the standard setup. It seems that you can produce more if you change your target to optimize it for true muonium, so that's what the proposal is for: To try to optimize it so that we can make more of the true muonium atoms, to have a better chance at not only proving them, but trying to study them," Phillips explains.
The project's unique focus impressed the board, according to Kuhn.
"In the end, the proposal by Sarah Phillips stood out because it appeared to be literally a 'one-person project' that pushes a completely new experimental initiative. The board also noted Sarah's outreach efforts and her role in inspiring younger students," Kuhn said.
Phillips says mentoring the next generation of scientists is an important part of her duties at the University of New Hampshire, and she looks forward to working daily with students in the lab.
"For a lot of them, it's the first time that they actually get to do any research. They really get the opportunity to get their hands dirty and do some things in the lab, and they just love it," she says.
Phillips earned her B.S. in physics at Mississippi State University and her M.S. and Ph.D. at The College of William & Mary.
The JSA Postdoctoral Research Grant has been awarded annually since 2008 by the Users Group Board of Directors. The research grant is one of the funded projects of the JSA Initiatives Fund program, provided annually by the owners of JSA to support programs, initiatives, and activities that further the scientific outreach, and promote the science, education and technology missions of Jefferson Lab and benefit the lab's user community. Information about the JSA Initiatives Fund is online at: http://www.jsallc.org/IF/IFIndex.htmlBy Kandice Carter
Patrizia Rossi, a well-respected physicist from Italy with extensive experience in experimental physics, has been named deputy associate director for nuclear physics at Jefferson Lab.
Rossi, a senior staff scientist at Laboratori Nazionali di Frascati of Istituto Nazionale di Fisica Nucleare (LNF-INFN), will begin her duties at Jefferson Lab in May.
"Patrizia is an outstanding scientist and a valuable addition to the lab," said Jefferson Lab Director Hugh Montgomery in announcing the selection of Rossi in February. "She brings experience as a manager and extensive knowledge of Jefferson Lab, which will greatly benefit our research efforts as we prepare for the future and the start of our 12 GeV experimental program."
Since 2003, Rossi has served as co-spokesperson and LNF coordinator of the Italian participation at Jefferson Lab. The Italian collaboration is fully involved in the 12 GeV program. Rossi also has served as chair of the service work committee in Jefferson Lab's experimental Hall B since 2004 and has been a member of the Hall B technical and ad hoc committees since 2002. In March 2010, she also served as a member of the lab's Program Advisory Committee, a panel of leading scientists that selects experiments to be run at the lab.
Her research has focused on studying the structure of the nucleon and the strong force, areas of major emphasis at Jefferson Lab. In addition to Jefferson Lab and laboratories in Italy, Rossi also has conducted experiments at DESY Laboratory in Hamburg, Germany and the ESRF Laboratory in Grenoble, France.
Rossi is a referee for such publications as Physics Letters B, Nuclear Physics A, European Physics Journal A, Israel Science Foundation, Applied Radiation and Isotopes, and Science & Technology Facilities Council (UK). She also has been a collaborator on more than 160 refereed journal papers, and has served as a member of numerous conferences and workshops, including those in Italy, Russia, Armenia and Romania.
"Patrizia will be of tremendous value to the overall nuclear physics program at Jefferson Lab, in terms of Physics Division planning, optimizing collaboration and productivity, and increasing JLab science visibility. I am mightily pleased that she chose to join us," said Rolf Ent, associate director for nuclear physics."This is an exciting time to join Jefferson Lab as it grows and becomes an ever more interesting place to do research," Rossi said. "The 12 GeV Upgrade is a reality and is providing a challenge to develop new ideas and proposals to the science program. I am looking forward to becoming part of this dynamic effort."
Jefferson Lab's Deputy Director of Science and Technology, Robert McKeown, while in Beijing in July 2011 signed a collaborative agreement – a memorandum of understanding – with officials from the China Institute of Atomic Energy regarding collaborative research efforts between the two institutions.
The medium- and high-energy physics group at the CIAE has been collaborating with Jefferson Lab for the last decade and has participated in about 20 experiments.
With the new research opportunities to be provided by JLab's 12 GeV Upgrade to the Continuous Electron Beam Accelerator Facility, China's hadronic physicists have joined their U.S. collaborators in proposing experiments for the upgraded CEBAF, including performing measurements on quark transversity, quark trans-helicity distributions and to perform parity violating electron scattering to study electron-weak physics.As a key member of the Chinese collaboration, the CIAE will be responsible for the development and construction of the central part of the GEM (Gas Electron Multipliers) detector and the GEM foils for the Solenoidal Large Intensity Detector (SoLID) apparatus to be sited in Hall A at Jefferson Lab.
Across Jefferson Lab, new telephone handsets are appearing, and eventually the entire system will be updated. The lab's legacy phone system, which is decades old and has not had a full maintenance contract since 2008, is well beyond its anticipated life, according to Bryan Hess, telecommunications manager.
"The deployment of a new phone system is underway and is being driven in large part by the new construction taking place around the lab" he explained. "We needed to be able to install new phones in all the new locations, but the existing system was not adequate to support lab growth and the 12 GeV era."
The upgrade will support new facilities including the Technology and Engineering Development Facility, and the 12 GeV Upgrade which includes the new Hall D complex and the new support buildings.
A multi-disciplinary action team convened to study the options, and sought out information and feedback on telecommunications systems used at other Department of Energy labs before making the decision to use Cisco’s Voice-over-Internet Protocol system – commonly called VoIP. "It allows us to install both phones and networking using a single cable to the desktop," Hess said.
"Because resources are tight, the transition to the new phone system has turned into a multi-year project," he continued. "It's not ideal, but it allows us to make slow progress. In between new installations, we are gradually replacing the old phones in offices and work centers around the lab."
The new system offers a number of benefits for the lab, including common cabling, better systems management and integration with other network services.
Information about the voice-over-IP phones is available on the Computer Center webpage (https://cc.jlab.org/). Click on the Telecom tab and scroll down to VoIP and select VoIP FAQ (https://cc.jlab.org/voipfaq).To report Jefferson Lab telecommunication problems: select Telecom Request under the Telecom tab on the Computer Center webpage or go to the IT Division's work request (CCPR) system and fill out the CCPR fields and select Telecom Problems in the Category field, or send an email to firstname.lastname@example.org.
Sometime this spring, your smartphone may get even smarter: Members of Jefferson Lab's Information Technology Division plan to roll out a new, combined calendar and email system that will sync with Android- and iOS-based smartphones.
Senior Unix System Administrator Paul Letta, says the new system will replace Jefferson Lab's current CorporateTime calendar system and, for many users, the nuts and bolts of the lab's email system.
"We want to make the system better," Letta says. "Zimbra is currently a widely used email and calendar collaboration suite. It's a much more modern suite of tools, and it has the potential to remain relevant for a long time. It'll also better keep up with increasing demands on email size and email storage."
Letta says not everyone will be migrated to Zimbra. The system is needed for the roughly 600 people who use the current Jefferson Lab CorporateTime calendar system on a regular basis.
"What we really want to replace is our calendar server. We will move the people that use the calendar into Zimbra," Letta explains. "But if you don't use the calendar, nothing's going to change for you. You're going to stay on the old email system. If you don't have a calendar account now, you won't have a calendar account later."
The new system is already being used by a group of about 40. The beta testing allows Letta and his colleagues to iron out any bugs. Once beta testing concludes, more calendar users will be migrated onto the system.
"We're going to do a behind-the-scenes migration of email accounts into Zimbra, where people will have to make a slight change to their Thunderbird configuration once they're migrated. But, other than that, it'll look just the same as it does now," Letta said.
Calendar users that use other email clients have nothing to fear: their email clients will work with the new email system, too.
Letta says the migration to the new system won't happen overnight. First, calendar users will be slowly migrated to the email portion of the new Zimbra system. After all of these users have been migrated, training will be offered on how to use the new calendar. Then, the calendar portion of Zimbra will be migrated for everyone at once.
While calendar users can choose to continue using their existing email interface, they will only be able to access the calendar though the new Zimbra web interface. The Zimbra web interface will allow calendar users to access their email and calendar in the office and from home in one, robust interface.
Letta says the biggest difference for some will be in performance. Zimbra should markedly speed up the delivery of emails to your inbox. Non-calendar users will also see improvement in email response as more users are moved off of the old email system and onto Zimbra.
Kelvin Edwards, Systems Team Manager, says the new Zimbra system is a culmination of a year of researching and testing systems to find the best fit for lab staff and Users. The IT Division's Letta, Edwards and Sherman White all made major contributions to the procurement, testing and implementation of Zimbra.
"We looked at several other combined email and calendar systems and Zimbra is certainly cheaper than any of them, does at least as good a job, and we can manage it in-house," Edwards says. "A lot of people are using mobile devices now. Zimbra allows you to integrate your Jefferson Lab calendar with your mobile device's calendar app. The current calendar server doesn't allow you to do that."
Edwards says further testing of the system will take several more weeks, with a full rollout planned for the spring.
"There will be a bit of a learning curve with the new calendar system, but once you've learned it, it will be a much nicer and more modern system," Edwards says.Information about Zimbra is available on the Computer Center webpage at: https://cc.jlab.org/zimbra
Elementary- and middle-school teachers interested in learning new and innovative methods for teaching the physical sciences are being invited to attend the annual Region II Teacher Night, scheduled for Wednesday, April 11, at Jefferson Lab.
The event will focus on physical science activities that teachers of fourth- through eighth-grade classes can use in the classroom. The evening's format will imitate a science fair. But instead of students showing off their science projects, more than 50 teachers will share their favorite or most-effective classroom activities with other teachers. The presenting teachers will provide handouts and many will have free teaching supplies to accompany the handouts.
Activities will cover a range of topics, including friction, electrolysis, the water cycle, engineering design challenges, exothermic demonstrations, energy conservation, electricity, polymers, scientific investigation, science games, sound, force and motion, the periodic table, diffraction, the solar system, static electricity, renewable energy, and compounds and mixtures.
Teacher Night will run from 6:30 to 8 p.m. in Jefferson Lab's CEBAF Center, located at 12000 Jefferson Ave., Newport News. To reserve a spot, or for more information, contact Brita Hampton no later than Wednesday, April 4; email email@example.com or call 757-269-7633.
"The teachers presenting activities and demonstrations at Science Night are former and current participants in a teacher enrichment program conducted at the lab," notes Lisa Surles-Law, a Jefferson Lab Science Education administrator. "They will be sharing many of the activities they have used in their classrooms. These teachers have spent a great deal of time and energy learning new science and teaching methods, and they want to share them with the larger teaching community."
"More than 100 teachers attended each of the four previous events," Surles-Law adds. "Teacher Night is a great opportunity for sharing and learning and finding something new to take back to the classroom."
The teacher enrichment program, dubbed JLab Science Activities for Teachers, and this teacher workshop are supported by the JSA Initiatives Fund, a grant program funded annually by Jefferson Sciences Associates, LLC.An informational flyer, including driving instructions may be downloaded at: http://education.jlab.org/teachernight/flyer.pdf. For additional Teacher Resources visit Jefferson Lab's science education website.
Competition was intense among the 22 schools vying for top honors at the Virginia Regional High School Science Bowl held at Jefferson Lab on Feb. 4.
The Thomas Jefferson High School for Science and Technology team from Alexandria defended its title as the reigning Virginia champ. The team answered its way through the morning round-robin matches and the double-elimination playoffs in the afternoon undefeated.
The TJHS team squared off against the Princess Anne High School team from Virginia Beach in Round 6 of the semi-finals, and gave the Virginia Beach team its first loss of the afternoon. This resulted in a final rematch between the two teams that ended with TJHS winning 56 to 4.
With a string of difficult Toss-Up questions and grueling Bonus questions, the less experienced Princess Anne team found it difficult to score. The TJHS team used strategy and knowledge to pull ahead, and earned most of its points on the Toss-Up questions.
The TJHS team, led by Coach Sharon Webb, included three veteran team members. The Princess Anne team, coached by Clare Ellen Kerr, included four new team members and only one returning team member.
Following TJHS and PAHS in third place was the Langley High School team from McLean. And the Piedmont Governor's School for Math, Science, and Technology team from Danville finished in fourth.
For finishing first, the TJHS team won an expense-paid trip to the U.S. Department of Energy Science Bowl Nationals to be held in Washington, D.C., April 26-30. The team also took home a $750 check for its school, the regional banner that the team will carry to nationals, a team trophy and individual medals.
The Princess Anne team received a $500 check for its school and a team trophy. The Langley High School team, coached by Leah Puhlick, earned a $300 check for its school and a team trophy. And the Piedmont Governor's School team, coached by Susan Propst, took home the fourth-place team trophy.
The National Science Bowl tournament – sponsored by the Department of Energy since 1991 – is an annual competition among teams of students. The teams face off in an intense question-and-answer format where contestants are quizzed on their knowledge in all science disciplines, including earth and space science, biology, chemistry, general science, and physics as well as mathematics.
Teams that didn't advance to the afternoon semi-finals were invited to compete in a problem-solving challenge dubbed the Stay All Day Contest. Teams were presented with a design challenge and an engineering challenge. The team with the best combined results for the two activities was Woodbridge Senior High School from Woodbridge and coached by Kathy Voehl. Team members won individual prizes and received a $300 check for their school.
"The Science Bowl program champions an interest in science, technology, engineering and math among our nation's youth," said Jan Tyler, Jefferson Lab's Science Education manager. "It encourages students to further their education and to pursue careers that will use this knowledge."The efforts of more than 55 volunteers were needed to carry out the day-long event. Most of the volunteers were Jefferson Lab staff members who performed as competition moderators, scientific and rules judges, timekeepers and scorekeepers during matches. Robert McKeown, the lab's deputy director for science and technology, kicked off the event with a welcome address to the students, coaches and family members in the auditorium.
Jefferson Lab is seeking qualified individuals for a range of technical, engineering and scientific positions. College student summer co-op positions are currently listed. All current employment opportunities are posted at: http://www.jlab-jobs.com/
Osamu Hashimoto, a professor at Tohoku University in Japan, passed away on Feb. 3 in Sendai, Japan, after a long and courageous battle with pancreatic cancer. He was 64.
He will be missed by his colleagues and friends around the world, and especially by his colleagues in the community of scientists studying strangeness in nuclear physics. His work in this area, particularly at KEK and Jefferson Lab, resulted in many important contributions to the field that are well recognized and will be well remembered.
Osamu received his Ph.D. from the University of Tokyo. He became an assistant professor in 1975 and then an associate professor in 1986 at the university’s Institute for Nuclear Study (INS). He was a leader of the KEK hypernuclear physics program for many years. Among his many contributions to the program was the design and construction of the SKS spectrometer, which was used for a broad range of hypernuclear physics experiments, including mass spectroscopy using the (p+,K+) reaction, and studies of the weak decay and g-ray spectroscopy of hypernuclei. The SKS spectrometer was moved from KEK to the J-PARC hadron hall and now serves as the main spectrometer for the strangeness physics program there.
In 1995, Osamu became a full professor at Tohoku University and led the nuclear physics group there in a major involvement in the Jefferson Lab program of electro-production of hypernuclei. This program began with the HNSS, the first high precision electro-production spectroscopy experiment, which completed data taking in 2000. Having demonstrated the feasibility and promise of the electro-production of strangeness, he then set out to push this approach to its ultimate limit, proposing the construction of a pair of dedicated spectrometers (the HKS and HES) for the "HKS experiments" (E01-011 and E05-115). He obtained funding from Japan (>$6M) for this instrumentation, and played a strong leadership role in the construction of the apparatus, its installation at Jefferson Lab and its use in carrying out proposed measurements.
Osamu also made many contributions to education at Tohoku University, beginning with his research group and continuing while serving as chair of the Physics Department, dean of the Graduate School of Science and vice president of the university. He was a believer in international exchange in science, as can be seen from his group’s involvement at Jefferson Lab and elsewhere, and his service as the executive director of the Center for International Exchange at Tohoku University. But perhaps most of all, the many people who had the pleasure and privilege of working with Osamu will remember him as an outstanding scientist who valued and recognized the contributions of each person on the large teams needed for major experiments, such as the HKS. We can never forget his kindness and friendship, his enthusiastic and dedicated spirit, and his many contributions to our science.
His funeral was held in Sendai on Feb. 7 (vigil ceremony) and 8 (funeral ceremony). Osamu's many friends in the Jefferson Lab community are planning to create a modest memorial to him in the form of a cherry tree planted near the Hall C counting house. There also will be a plaque inside the counting house identifying the tree as a memorial to him and to his many contributions to our science and the international community of nuclear physicists.A remembrance by friends and collaborators
John Brawley, 73, retired Jefferson Lab staff member and respected colleague, died on March 9 due to pulmonary fibrosis, his wife, Peggy, was at his side.
At that time, he and his family relocated to Virginia, where he worked for Jefferson Lab (then CEBAF) as the electron beam welder in the SRF group. Upon retiring in 2003, he and his wife moved to Gloucester.
Jefferson Lab staff heralded the arrival of the first of two Cold Boxes, needed to upgrade the CEBAF accelerator's refrigeration plant, after it arrived at the lab on March 7. The 100,000 pound cylindrically shaped system, made by Linde Corporation, made its debut just before mid-day.
It had taken about a week to transport the 38 ft. long, 11.5 ft in diameter system cross country from the Port of Catoosa, just east of Tulsa, Okla., on a carriage system supported by 54 tires and pulled by a semi tractor.
Over the course of several hours after its arrival at the back entrance to the Accelerator Site, the Cold Box had to be transferred to a Goldhofer transport trailer with 48 tires mounted on 16 hydraulically controlled and rotatable axles – so that it could be delivered to the south side of the Central Helium Liquefier, or CHL. Two heavy-lift rated cranes – one for 300 tons and one for 120 tons – were used to lift and move the Cold Box.
After the switch, the transport trailer and both cranes moved to the back side of the refrigeration plant, where the cranes then lifted and moved the Cold Box into place.
This unit and a second Cold Box will provide the additional refrigeration capacity necessary for CEBAF to operate at 12 GeV, or 12 billion electron volts. The second Cold Box departed the Linde production plant in Oklahoma on March 7 and is scheduled to arrive at the lab during the week of March 12; when subcontractors and lab engineering, accelerator and facilities management staff will repeat the delivery and installation process undertaken with the first Cold Box.
A Cold Box cools and purifies compressed helium for distribution and liquefaction, then warms the return flow to the compressors.
The CHL provides the cryogenic refrigeration needed to cool the accelerator's superconducting radiofrequency components that are used to accelerate the high-precision electron beam for experiments.
The On Target newsletter is published monthly by the Thomas Jefferson National Accelerator Facility (Jefferson Lab), a nuclear physics research laboratory in Newport News, Virginia, operated by Jefferson Science Associates, LLC, for the U.S. Department of Energy's Office of Science. Possible news items and ideas for future stories may be emailed to firstname.lastname@example.org, or sent to the Jefferson Lab Public Affairs Office, Suite 15, 12000 Jefferson Avenue, Newport News, VA 23606