French Ambassador Tours JLab

Hall B Leader Volker Burkert (right) explains the workings of the CEBAF Large Acceptance Spectrometer to Ambassador Pierre Vimont and Consul General Michel Schaffhauser (far left).

Among the many ties that Jefferson Lab has with the international science community, some of the strongest exist with the French. In recognition of this fact, French Ambassador Pierre Vimont took a whirlwind tour of Jefferson Lab on Feb. 28. Joining Vimont on the tour were his consul general, Michel Schaffhauser, and Nicole Yancey, the honorary consul of France.

Their visit to JLab was neatly tucked between the ambassador’s speaking engagements at Old Dominion University and an evening dinner at Christopher Newport University. The events were co-sponsored by the World Affairs Council of Greater Hampton Roads and the respective universities.

Vimont and his associates visited Jefferson Lab to gain a better understanding of the Lab's research program and to learn about the close ties between Jefferson Lab and its French collaborators. Over the years, French scientists have played key roles in defining the science program at JLab, in constructing critical equipment and in executing, analyzing and interpreting important experiments at the Lab. French collaborators also are among the key collaborators laying the plans for new equipment associated with the 12 GeV Upgrade.

French involvement in the scientific program at JLab includes:
- French scientists are spokespersons on 14 approved experiments at JLab.
- One hundred and fourteen physicists are collaborators on experiments that have run at JLab.
- Twenty-one postdoctoral candidates have worked or are working on JLab-based research.
- Nineteen students have completed their Ph.D. research based on work at JLab.
- Twelve students have thesis projects in progress.
- Four high school students and 10 master’s students have been involved in JLab research projects.
- Eleven students completed their military service requirement as "cooperant scientifique" at JLab.
While here Ambassador Vimont took the opportunity to tour the accelerator (tunnel), the control room (Machine Control Center), and two of the Lab's cavernous end stations (Halls A and B) where physics experiments are run.
The ambassador was impressed with the depth and breadth of JLab's basic science program. He spoke with senior JLab scientists and several French collaborators currently at the Lab preparing for experiments.

During the 1990s, Vimont served as the European Communities’ director for development and scientific, technical and educational cooperation and then for cultural, scientific and technical relations. He was deputy director general of the entire Cultural, Scientific and Technical Relations Department from 1996 to 1997 and then director of European Cooperation from 1997 to 1999. Vimont was appointed ambassador by French President Nicolas Sarkozy on Aug. 1, 2007. Prior to his present appointment, the ambassador was chief of staff to the minister of foreign affairs, a position he had held since 2002.

Congratulations All! JLab sets New Safety Milestone

The combined efforts of Jefferson Lab staff, users and subcontractors have resulted in the Lab achieving a new safety milestone. On Feb. 3, the Lab passed its previous record of 455 days without a restricted- or lost-workday accident. And by March 1 the Lab had gone 482 days without a restricted- or lost-time injury. That is 16 months, or a little more than 1,500,000 worker hours, without a mishap resulting in someone losing work time or being put on restricted work duties.

Lab Director Christoph Leemann noted the record-breaking achievement in an all-staff e-mail, saying that "outstanding science and safety go hand in hand."

During comments to JLab managers in mid-February, Chief Scientist Anthony Thomas commended the concerted effort of everyone involved in improving JLab's safety programs and encouraged managers to remain focused on safety.

"Keeping it (safety) the top priority is what gets each of us home at the end of the day in the same condition we came to work that morning," Thomas said. "This is a significant accomplishment and everyone should be proud of their part in this achievement."

JLab first achieved 455 days without a restricted- or lost-time injury in the 1980s prior to beginning civil construction on CEBAF, according to ESH&Q Reporting Manager Carter Ficklen.

"The 455-day milestone was a notable achievement back in the '80s, but it is an even more meaningful achievement now because our and DOE's injury avoidance expectations are higher," he commented.

Starting in 2004 and running through August 2005, the Lab reached nearly 400 days without a restricted- or lost-time injury; and during 2007 the Lab racked up 319 days straight without a recordable mishap.

"The Lab's safety numbers for the last three years have been good and are consistently improving," Ficklen noted. "JLab's efforts to continuously improve ESH&Q across the facility and to keep it a top priority have resulted in the Lab keeping both its recordable accident rate (TRC) and the restricted- and missed-work time rate (DART) low."

The turnaround began in 2006 with a concerted effort on the part of work groups across the Laboratory to implement a behavior-based safety process. One notable area of improvement included Engineering, then a part of the Accelerator Division. This was further strengthened by additional safety leadership training that occurred during 2007.

What are Department of Energy TRC and DART rates?
TRC (Total Recordable Case) is the number of recordable accidents per 200,000 hours worked. 200,000 hours is about 100 person-years of work – 40 hours per week for 50 weeks times 100. A recordable accident is one that requires more than first aid treatment.
DART (Days Away, Restricted or Transferred) is the number of incidents that result in lost work days, restricted work days (the worker cannot perform all of his/her normal duties) or days in which the worker is transferred to alternate duties to accommodate the injury per 200,000 hours worked.
TRC and DART are lagging indicators of a laboratory's safety performance. The rate for both numbers resets at the beginning of every fiscal year; JLab currently has a 0.00 TRC rate and a 0.00 DART rate for FY 2008.

DOE's TRC and DART rate goals for FY08 are: DART = 0.25 and TRC = 0.65 or lower.

Teen Researching FEL Improvements Named Intel Science Talent Search Semi-Finalist

Newport News native Anne Watson is one busy teen.

There's her part-time job working for SandSecurity, a computer security firm in Poquoson, and her violin lessons. She’s a member of the National Honor Society and the French Club, and produces the morning live news show at Menchville High School. When not at Menchville she's at the New Horizons Governor's School for Science and Technology, taking additional classes. She studies Cuong Nhu, a Vietnamese form of self-defense through her church, and she mentors middle-school students.

Two mornings a week and part of the day on Friday, she's at Jefferson Lab, working with scientist Michelle Shinn in the Free-Electron Laser Division.

Anne Watson is pictured here with her "apodization test stand" - some of the equipment she used to conduct her FEL research.

Watson's not just doing a lot – she's achieving as well. In January, she placed as one of the 300 semi-finalists out of a pool of 1,602 applicants in the 2008 Intel Science Talent Search, often referred to as the "Junior Nobel Prize." Being named a semi-finalist earned her a $1,000 scholarship award.

Her application for the scholarship contest, included a paper about her work at JLab's FEL, titled "Apodizing Apertures to Optimize Laser Performance." Her project had two parts: first, a modeling stage where she used computer code, after first ensuring that it accurately reflected reality, to model how a laser beam would diffract around a circular object with smooth "unapodized" or jagged "apodized" edges, and then a testing stage where she set up and took data from the same optical setup that she had modeled and derived results from before.

In summarizing her work for the panel of distinguished judges, Watson wrote: "Lasers play an increasingly important role in diverse areas of study such as medicine or defense. In order to maximize their output, it is essential to have efficient optical equipment. Apodization of optical apertures is a valuable technique to reduce harmful diffraction while still retaining intensity. The most commonly used apodization function, the Bartlett function, was investigated through modeling and physical testing. A code called the Optical Propagation Code was utilized to assist in theoretical analysis, and experimentation took place using a Helium-Neon laser. The beam's intensity was analyzed to determine that the Bartlett function provided a significant improvement."

It is important research, according to Watson, because lasers are playing an increasingly important role in commercial applications, medicine and defense. In order to maximize a laser's light output it is essential that the optical system is functioning as efficiently as possible. The research that Shinn has mentored Watson through is helping to identify ways to improve laser optics efficiencies.

Being named a semi-finalist of the Intel Science Talent Search "added an element of accomplishment to my and Michelle's work," Watson notes. "I knew the research on apodization was going to be important by increasing the efficiency of the laser, and it felt good to be recognized nationally to that effect. I have earned other awards at regional and state science fairs on my work in other areas, specifically computer science (wireless networks, cryptography), but this award from Intel was very special. Part of the process of sending in my research included answering questions about my views on scientific reasoning, applications of research, and similar items; this helped me think about and broaden my views concerning research and where I might potentially go with science for the rest of my life.

"Michelle of course has always been there to explain, encourage, and question with me (not for me) topics that arose throughout this investigation of laser light diffraction and related areas."

Watson first came to JLab last year as a high school junior and started to work in the FEL Division as part of her studies at New Horizons. She was hired this past summer to continue working part-time through this school year.

"While Anne has not officially graduated from high school, her talents and maturity are on par with most graduate students I've worked with," comments Shinn. "It speaks well for her individually, the efforts of her family, the Newport News public school system, and the opportunities afforded her by the Commonwealth. I think Anne has a very exciting and rewarding career ahead of her, and I feel privileged to have gotten to know her as well as work with her."

The middle child of Chip and Peggy Watson (He is JLab’s High Performance Computing Group leader), Anne has applied to numerous colleges, but said she doesn’t have her heart set on any particular one. What she hopes, however, is to follow her passion for working in computer security and encryption/decryption, and to have the opportunity to study in France, where her family lived for a year while her dad was on sabbatical at CERN.

By Judi Tull
Feature Writer

'Skinny' Pions Sail Through Nucleus

In the experiment, scientists used JLab’s electron beam to produce pions inside the nucleus of the atom.

"An electron hits a proton, creating a pion from it. And then this pion has to travel through the rest of the nucleus before it can come out and be detected," says Dipangkar Dutta, an assistant professor at Mississippi State University and a spokesperson for the experiment.

Like protons and neutrons, pions are built of smaller subatomic particles called quarks. These quarks are held together by the strong force, sometimes called the color force. Thus, each quark has a color charge and can feel color charges from other quarks; like color charges repel and different color charges attract.

Skinny particles. An electron (bright green) has just scattered from a nucleus and created a pion (green-skinned particle). This pion's quarks are so tightly packed that they nearly cancel each other's color charge, allowing the pion to slip through the nucleus without interacting, an effect now seen at the lowest possible energies. Click here to view the animation of this transaction. Graphic and animation J. Griffin, JLab

Normally, pions traveling through the nucleus feel the color charges from the quarks inside the protons and neutrons they encounter. These pions are often absorbed back into a proton or neutron before they can exit the nucleus. Theory predicted that if pions were made in smaller and smaller sizes, eventually the pions would be so small, that the color charges of the two quarks inside would not feel the color charges of the other quarks outside, making the pion invisible to protons and neutrons. According to this theory, pions of different sizes are produced by adjusting the momentum exchanged in the electron-nucleus collision.

In this manner, scientists produced pions of different sizes and measured how many of each size escaped the nucleus. The result was published in the Dec. 14 issue of Physical Review Letters. The experimenters found that as the size of the pions decreased, the number that made it out of the nucleus increased.

Eventually, the pions produced should become small enough that all of them escape the nucleus.

"The pion doesn't see the protons and neutrons anymore. So the pion moves as if there are no longer any nucleons. This unique phenomenon is known as color transparency, and it’s been used to describe high-energy scattering experiments. Witnessing the onset of this phenomenon has, however, remained elusive until now," Dutta says.

He says finding the onset of color transparency bridges the gap between traditional nuclear physics, which considers the nucleus as protons and neutrons, and traditional high-energy physics, where smaller particles such as quarks are primarily studied.

Jan Ryckebusch is a staff member in the Department of Subatomic and Radiation Physics of Ghent University in Belgium. He and his colleagues calculated the nuclear physics view of what would happen as pions were produced in the nucleus.

"We used a model that tries to describe traditional nuclear physics as well as we could and then see whether it describes the experiment," Ryckebusch says. "You do the best you can in traditional nuclear physics, and at some point you see that the reality deviates from your model."

This experiment found that deviation, the onset of color transparency, where the nucleus appears to be made up of simply quarks and gluons instead of quark-built protons and neutrons.

"Now for the very first time, by looking at smaller objects like the pion, they are starting to see deviations from the traditional nuclear physics view," Ryckebusch comments.

The experiment is described in Massachusetts Institute of Technology Ph.D. student Ben Clasie's doctoral dissertation.

Dutta says the scientists are now planning an experiment to determine the onset of color transparency for particles larger than pions, such as protons. "Now that we've seen it with pions, we expect to continue this program with protons with the 12 GeV Upgrade. And perhaps we'll see it turning on there."

By Kandice Carter
JLab Science Writer

Technical Paper: Measurement of Nuclear Transparency for the A(+) Reaction
B. Clasie et al.

Also featured by Physical Review Focus: Transparent Nuclei, Dec. 21, 2007

Below the Fold

JLab ISM Assessment Teams Report Preliminary Findings

After hundreds of interviews and the review of hundreds of documents, those involved in a review of Jefferson Lab's Integrated Safety Management System have issued their preliminary findings.

The review is part of the Lab's effort to continuously improve its safety culture and to prepare for a Department of Energy inspection of the Lab's ISM System in June.

Approximately 30 JLab supervisors and staff, working in five teams (ISM Core Function teams) reviewed the documents and conducted the interviews, including dozens of work-process interviews. They used the results to assess the Lab's compliance with DOE expectations and to identify areas where the Lab can improve. The team’s report is being reviewed and will be posted on the ISM webpage (http://www.jlab.org/ehs/ISM/) after it is approved later this month.

In a parallel effort, JLab invited three outside ISM experts to study the experimental facilities operated by the FEL and Physics divisions. This focus was chosen primarily because it was these types of activities that received the most scrutiny when DOE conducted an ISM inspection at Brookhaven National Lab. One of the experts was a member of BNL’s ESH&Q staff. A report by these experts will be posted on the ISM webpage when it becomes available.

Although the assessment activities by JLab staff and the experts were conducted independently, both arrived at similar conclusions:

1. There is still general confusion or a lack of knowledge of the meaning and impact of ISM throughout the Lab.
2. That the way the Lab plans and executes its work is not consistent across its organizations, or sometimes within organizations, and that the processes are not always in strict compliance with JLab policies and procedures.
3. That the Lab is not documenting and sharing lessons learned appropriately.
4. That the Lab needs to pay more attention to housekeeping in its workspaces.

Because the Lab has been constantly assessing and improving its safety program since it was established, the findings were not new and activities are in process to address the gaps. The assessments, however, did highlight the need to focus Lab efforts and to make some real changes in a short time period.

"These efforts will impact every staff member, subcontractor and user at JLab, and the continued support of all staff is expected and appreciated," added Lab Director Christoph Leemann.

For more detail on the ISM upgrade efforts and the upcoming DOE inspection, please visit the website.

William & Mary Students Develop THz Business Plans

College of William & Mary students talk with Rhonda Scales (foreground, far right), Legal Counsel, and Teresa Danforth, Contracts, as Gwyn Williams (back, center), FEL Division, listens.

Seven students from the College of William and Mary Mason School of Business and Wythe School of Law, visited Jefferson Lab on Feb. 28.  They had the opportunity to visit the Free-Electron Laser Terahertz laboratory and then ask questions of Rhonda Scales, Legal Counsel, and Teresa Danforth, Contracts.  As part of their course of study, the students will prepare business plans which are related to various THz applications.

Gwyn Williams, FEL Division, had earlier given a lecture to the class in which he presented a scientific introduction to the intellectual property contained in the field of high power THz production and applications.  At the end of their course work, 40 percent of the students' grades will be based on these business plans, and Jefferson Lab will help to judge them

Imager Spots and Samples Tiny Tumors

A new medical imager for detecting and guiding the biopsy of suspicious breast cancer lesions is capable of spotting tumors that are half the size of the smallest ones detected by standard imaging systems, according to a new study.

The positron emission mammography/tomography breast imaging and biopsy system was designed and constructed by scientists at Jefferson Lab, West Virginia University and the University of Maryland School of Medicine. The PEM/PET system is designed for detecting and guiding the biopsies of suspicious breast cancer lesions.

"This is the most-important and most-difficult imager we've developed so far," says Stan Majewski, JLab Radiation Detector and Medical Imaging Group leader.

This PEM/PET image of rods inside a plastic breast phantom show the resolution capabilities of the device. The diameters of the rods (in millimeters) are shown. Technical aspects of the image may be found in the paper, cited below. Image: Ray Raylman

How It Works
The PEM/PET system features components designed for imaging the unique contours of the breast. The complete system is the brainchild of Ray Raylman, a professor of radiology and vice chair of Radiology Research at WVU. He says the technology is built on traditional PET imaging, where a drug with a radiation-emitting component is injected into a patient and is then imaged. The system is designed for imaging tumors in women who have indeterminate mammograms because of dense or fibroglandular breasts.

"I got the idea as a postdoc when I was working with some radiologists who wanted to use PET to image breast cancer. They could do it, but they couldn't get the resolution," Raylman says.

In this imaging procedure, a small dose of radioactive molecules that look like sugar, called fluorodeoxyglucose (FDG), are injected into the body, where they're absorbed by cancerous tumors.

"The patient lays on the bed, with one breast at a time falling through a hole in the table that goes to the center of the scanner, which is sort of the standard way to do stereotactic breast biopsies right now," Raylman explains.

The system images the breast with a movable array of two pairs of two flat scanners. The scanners detect the radiation from the drug, and a sophisticated software package produces a three-dimensional image from scanner information. The images are available in about 10 minutes from the start of the scan.

If a suspected lesion is found, a single pair of scanners is then used to guide a needle biopsy of the lesion. The biopsy is performed with a person-controlled robot arm.
"Just before we take the tissue sample, we take a new image. The needle we use has a little radioactive source embedded in its tip, so that we can see the relative position between the biopsy needle and our suspicious lesion," Raylman says.

A Difficult Task
One important difficulty to overcome was the time it takes for the system to combine the information of the individual scanners into a three-dimensional image.

Mark Smith is currently an associate professor in the Department of Radiology at the University of Maryland School of Medicine. While working on the software, he was affiliated with both the JLab Radiation Detector and Medical Imaging Group and UM.

"I developed the image reconstruction algorithms so that we can use the data from the detector system to form a three-dimensional image. And this is challenging, due to the fact that we want image reconstruction to be done within approximately five to 10 minutes after the woman has been imaged with the device," he says.

System Testing
Raylman led the initial testing of the system and is the lead author on the study. His team imaged various radioactive sources to test the resolution of the system. In one test, a series of capillary tubes were imaged to test the resolution capabilities.

To visually demonstrate the capabilities of the scanner, fluorine-18, a radioactive source, was deposited in thin rods of known diameter inside a plastic device used as a proxy for the breast – a breast phantom. In another test, two spheres of radioactive material in a water-filled cylinder, another type of breast phantom, were also imaged.

"We had good performance characteristics, with image resolution below two millimeters. In regular PET, the image resolution is over five millimeters, so we're quite a bit better than that," Raylman says.

In addition, thanks in part to speedy image reconstruction, the initial tests revealed that the PEM/PET system takes about the same amount of time to image cancer and complete a biopsy as it takes to complete a traditional biopsy.

This is a schematic composite image of the PEM/PET imaging and biopsy system. Image: Ray Raylman / J,Griffin.

The Next Steps
The next steps for the team include minor improvements in the detector systems and image reconstruction software and the addition of components for taking X-ray computed tomography (CT) scans. Initial clinical trials are planned after completion of system testing.

"The system is another example of nuclear physics detector technology that we have put a lot of time and effort into adapting for the common good," Majewski says.

Smith agrees, explaining, "I'm continuing to collaborate with Jefferson Lab and Ray Raylman on this project, because I feel very strongly it's something I'd like to see clinically implemented."

Other Radiation Detector and Medical Imaging Group members that worked on the project include Brian Kross, John McKisson, Vladimir Popov (now with the JLab Radiation Control Group), James Proffitt and Drew Weisenberger.

The work was supported by a National Cancer Institute grant to West Virginia University and by DOE's Office of Science. Construction of the JLab portion of the imager was supported through a subcontract from WVU.

By Kandice Carter
JLab Science Writer

The results of these tests were published in the journal Physics in Medicine and Biology on Feb. 7.
Technical Paper: The positron emission mammography/tomography breast imaging and biopsy system (PEM/PET): design, construction and phantom-based measurements
Raymond R Raylman, Stan Majewski, Mark F Smith, James Proffitt, William Hammond, Amarnath Srinivasan, John McKisson, Vladimir Popov, Andrew Weisenberger, Clifford O Judy, Brian Kross, Srikanth Ramasubramanian, Larry E Banta, Paul E Kinahan and Kyle Champley

Further Reading:
Nuclear Physics Technology Saves Lives
Jefferson Lab Medical Imager Spots Breast Cancer
JLab news release: Device Zeroes in on Small Breast Tumors

Jefferson Lab Accelerator Physics Featured in Physics Today

Graphic by J. Griffin, JLab.

Electron beams are essential in microwave ovens, radio transmitters and medical X-ray scanners. They're also important in the more exotic world of nuclear and high-energy physics. Read more about the exotic uses of electron beams in accelerators and free-electron lasers in "Electron Sources for Accelerators," an article in Physics Today written by Jefferson Lab authors Carlos Hernandez-Garcia and Marcy L. Stutzman and co-author Patrick G. O'Shea from the University of Maryland.

The article appears in the February issue of Physics Today. If you don’t have access to an electronic subscription to Physics Today, a copy of the magazine has been put on reserve in the JLab Library (1th floor, ARC).

Property Custodians: Property Validation Season is Here; Refresher Training Required

Tom Briggs, JLab's Property Manager, asks all Property Custodians to complete their annual validation and take their refresher training before the April 15 deadline.

Nearly every employee at JLab is a property custodian, whether you are responsible for one item or 100. A property custodian is responsible for proper use, control, physical protection and disposition of assigned property. Custodians will be pleased to see that some lower-dollar-value items are coming off their property lists, which should make the annual validation process go more smoothly, according to Tom Briggs, JLab's property manager.

The validation process started on March 10 and continues through April 15. During this period, each custodian must validate all of the items on his or her inventory list and take the Property Custodian Refresher GEN 150 training (about 5 minutes).

In preparation for the annual validation process and the annual property inventory that will follow, Briggs asks custodians to review their property lists, make sure they know what is on their lists and where everything is. He reminds all everyone to take the time to review JLab's Property Manual and to follow Tom's Guidelines for Better Property Management.

Tom's Guidelines for Better Property Management
-- Keep track of your property.
-- Don't sign for equipment or materials you haven't seen or don't know where it is.
-- Make sure all equipment is tagged or marked appropriately. (Make sure anything personally owned is marked with your name.)
-- If you make a new piece of equipment, contact the Property Office to get it tagged or marked appropriately.
-- If you have visitors or users bringing their own equipment on campus, it must be appropriately marked. The Property Office can provide property tags for visitor/user equipment and materials.
-- Don't take government property off campus without the appropriate Property Office paperwork.
-- Don't leave government property unattended in your personal vehicle or anywhere that it could be stolen.
-- If you think something has been stolen, notify JLab Facility Security Officer Kris Burrows, ext. 7548, or email burrows@jlab.org.
-- If you discover something is missing, notify JLab Property Manager Tom Briggs, ext. 5430, or email tbriggs@jlab.org.
-- If you are shipping something off campus for repairs, first notify the Property Office; send it off campus through Shipping and Receiving.
-- If you are loaning a piece of equipment to another lab or institution, first complete the appropriate paperwork through the Property Office.
-- Don't throw away old or broken equipment or unused materials. Contact the Property Office to determine the appropriate way to dispose of all equipment and unused or leftover materials.
-- Anything that could be perceived as "scrap" material must be turned in to the Property Office.
-- Don't cannibalize equipment unless you first get approval from the Property Office.
-- Don't trade materials or equipment with other work sections. Turn the items in and have the other work section get the items assigned to it through the Property Office.
-- DOE prohibits allowing anyone outside of JLab's Computer Center to access your computer hard drive, this includes for repair or replacement. Always contact the Computer Center if your computer isn't functioning properly.
-- DOE has a moratorium on hard drive disposal. Specifically, no government-purchased hard drives can leave JLab for disposal, warranty exchange, repairs etc. If you have a hard drive for disposal, drop it off at Shipping and Receiving (east side of bldg. 90). Do not toss it in the trash.

New Tool Crib is Open: Borrow Items Instead of Buying Them

Lawrence Ferbee, Jr., tool crib manager, shows off some of the tools and equipment available to sign out and use while conducting JLab work.

In an effort to make certain types of tools and equipment more readily available to staff and users conducting JLab work, a tool crib has been set up.

"As you plan your work, if you don't have the right item to do a job, check the tool crib before ordering that new tool or piece of equipment," says Lawrence Ferbee, Jr., tool crib manager.

"A tool crib is great because it can reduce the amount of money your work group spends on tools or specialized equipment – especially items that you use infrequently. It also reduces the number of tools that you (as a property custodian) need to manage and the space required to store them," Ferbee adds. "The tool crib has items to support simple jobs as well as some specialized tasks."

The JLab Tool Crib is located in the back of Shipping and Receiving (Bldg. 90, the Experimental Equipment Lab), and has hundreds of items on hand. The shelves hold items ranging from hammers, screwdrivers and flashlights to soldering stations, portable band saws, oscilloscopes and pulse generators. Tools may be signed out for as little as one day or for as long as six months, and must be used for JLab work.

After finding the item(s) you need in the inventory listing or to browse the shelves, contact Ferbee, ext. 6297 or email ferbee@jlab.org, to set up a time to meet him at the tool crib. There you will sign the paperwork and pick up the item(s). Users are asked to have their JLab sponsor make their loan requests. Contact Ferbee to access the crib Monday through Friday, 7 a.m. to 4 p.m.

"We started setting up the tool crib last year," Ferbee notes. "A few work groups donated tools and equipment that they weren't fully using – making those items available for others to sign out on an as-needed basis."

He asks all workers and work groups to look over their tools and equipment. "If you have items that you seldom or never use, please donate them to the tool crib. I can even accept some types of items that may be in need of repair," Ferbee adds. He sends out a "big thanks" to Jack Segal, Physics Division and Ken Boyes, Facilities Management, for their tool and equipment contributions that helped set up the tool crib.

More items are coming into the tool crib; so check the inventory regularly. "Don't spend money if you don't have to. If we have what you need in the tool crib, sign it out, use it and return it," Ferbee says.

Free Stock: Leftover Work Materials Available For Use; Already Paid For

Check out Free Stock before you order supplies or materials for that small JLab job, or if you run short during a bigger job. Free Stock is located adjacent to the JLWS Stockroom in Building 90, the Experimental Equipment Lab.

The Free Stock inventory currently includes wiring, cabling, switches (resistors, connectors and other electronic items), fasteners (nuts, bolts and washers), and some general office supplies.

The items in Free Stock are left over from various JLab work activities and projects, and are available at no cost to the person or work group that can use them. With nearly 850 different types of items currently available in Free Stock, what you need just might be there, according to Lawrence Ferbee, Jr., Free Stock clerk. The next time you visit the JLWS Stockroom or the new Tool Crib, stop by Free Stock to see what is available, he says.

These materials and supplies must be used to conduct JLab work. For more information contact Ferbee, ext. 6297 or email ferbee@jlab.org.

Likewise, individuals and work groups may submit usable or reusable, excess or leftover materials to Free Stock. Say you've finished a job, moved your office, or cleaned out a storage cabinet and have usable quantities of materials or supplies you have no further use for – not trash, but stuff others can use – give them to Free Stock, Ferbee asks. "It's a great way to use up leftover materials and supplies that the Lab has already paid for. After all, one person's junk can be another's treasure."

Individuals with purchase accounts may access the list of Free Stock items; visit webstock by clicking here. Once on the main webstock page, click on the "Adv Search" button (lower right of screen). A small screen will pop up that lists the acronym for all the vendors. Unselect all, then select only FREESTK (green check mark √). In the blank "Keyword" block at the top of the screen, type in keywords describing the item you are looking for. Then click on the "Search" button.

Milestones

Hello – Dec. 2007 through Feb. 2008

Mindy Carman, Hall B Technician, Experimental Nuclear Physics Division
Silviu-Doru Covrig, Hall C Post Doctoral Fellow, Experimental Nuclear Physics Division
Stephen Furches, Mechanical Designer, Experimental Nuclear Physics Division
Abhishek Gupta, Electrical/Electronics Engineer, Experimental Nuclear Physics Division
Paul Hansen, Mechanical Designer, Engineering Division
Derrick James, Mechanical Designer, Engineering Division
Mitchell Laney, Sr. Subcontracting Officer, Chief Operating Officer Division
Christopher Larrieu, Scientific Computing Programmer Analyst, Information Technology Division
Stephanie Schatzel, Public Affairs Associate (previously with Staff Services), Chief Operating Officer Division
Alexander Somov, Hall D Staff Scientist, 12 GeV Upgrade Project

Goodbye – Nov. 2007 through Feb. 2008

William Brooks, Associate Project Manager, 12 GeV Upgrade Project (joined JLab's User community)
Tanest Chinwanawich, Electrical/Electronics Engineer, Experimental Nuclear Physics Division
Richard Cothren, Project Services Manager, Office of Project Management & Integration
Adam Crosby, Cyber Security Analyst, Information Technology Division
Richard Dickson, Computer Scientist, Accelerator Operations, R&D Division
Barbara Donovan-Swanick, Procurement Administrator, Chief Operating Officer Division
Craig Ferguson, Associate Director, Environment, Safety, Health & Quality Division
Donna Gilchrist, Administrative Assistant, Free-Electron Laser Division & Office of the Chief Technology Officer
Eduardo Gutierrez, Student Intern, Engineering Division
Patricia Hunt, EH&S Engineer, Environment, Safety, Health & Quality Division (now an Environmental Scientist with JLab's DOE Site Office)
William Rust, Electrical/Mechanical Maintenance Section Manager, Chief Operating Officer Division
Diane Sarrazin, Administrative Assistant, 12 GeV Upgrade Project
Stephen Scheithauer, Project Planner, Office of Project Management & Integration
Gevorg Stepanyan, Student Intern, Experimental Nuclear Physics Division
Shyla Thomas, Student Intern, Engineering Division
Karen White, Business Manager, Accelerator Operations, R&D Division

These Milestone entries, listed alphabetically, are actions posted by Human Resources from November 2007 through February 2008. Current JLab career opportunities are posted at: https://careers.peopleclick.com/careerscp/client_jeffersonlab/external/search.do