Tuesday, Nov. 12, 2013

Have a safe day!

Tuesday, Nov. 12

3:30 p.m.


Wednesday, Nov. 13

1:30 p.m.
Theoretical Physics Seminar (NOTE DATE, TIME, LOCATION) - WH3NE
Speaker: Yang Zhang, Niels Bohr Institute
Title: Multi-Loop Unitarity via Computational Algebraic Geometry

3:30 p.m.

4 p.m.
Fermilab Colloquium - One West
Speaker: Eszter Hargittai, Northwestern University
Title: Connected but Confused? How People's Internet Skills Influence What They Do - and Do Not Do - Online

Click here for NALCAL,
a weekly calendar with links to additional information.

Ongoing and upcoming conferences at Fermilab


Take Five

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Current Security Status

Secon Level 3

Current Flag Status

Flags at full staff

Wilson Hall Cafe

Tuesday, Nov. 12

- Breakfast: All-American breakfast
- Breakfast: bacon, egg and cheese bagel
- Ranch chicken breast
- Smart cuisine: pork piccata with lemon sauce
- Chicken curry
- California turkey panino
- Taco salad
- Minnesota chicken and rice soup
- Chef's choice soup

Wilson Hall Cafe menu

Chez Leon

Wednesday, Nov. 13
- Herb roasted cornish hen
- Sage and onion stuffing cups
- Roasted broccoli
- Pumpkin pie with whipped cream

Friday, Nov. 15
- Spinach and strawberry salad
- Grilled mahi mahi with roasted red-pepper sauce and cilantro pesto
- Green rice
- Sugar snap peas
- Coconut cake

Chez Leon menu
Call x3524 to make your reservation.


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SeaQuest sees first beam of 2013

The SeaQuest experiment, run jointly by 15 institutions including Argonne Lab and Fermilab, saw beam last week for the first time in more than a year. While the beam was shut down during Fermilab's accelerator upgrade, experimenters and technicians made updates to the spectrometer, shown here. Photo: Sarah Witman

Scientists from Fermilab, Argonne and 13 other international institutions on the SeaQuest experiment are in good spirits now that the experiment has seen beam for the first time in more than a year. Beam was delivered to SeaQuest on Friday, Nov. 8.

The experiment, based at Fermilab, studies the structure of protons and the behavior of the particles that compose them.

Protons contain a constantly simmering sea of particles called quarks and antiquarks, all bound together by the aptly named strong force, the strongest of the four fundamental interactions of nature. SeaQuest aims to shed light on the structure of protons, specifically, the ratio of up antiquarks to down antiquarks — two types of antiquarks with different properties. The experiment is also intended to study how the strong force binds particles and how those effects are modified when the proton is inside an atom’s nucleus rather than isolated and separated from the rest of the atom.

In the experiment, Fermilab's Main Injector sends a beam of protons into liquid hydrogen or deuterium or into solid carbon, iron and tungsten every minute. The burst of beam lasts 5 seconds.

The initial goal of SeaQuest is to confirm the results of the NuSea experiment, its predecessor, using lower-energy and higher-luminosity beam. NuSea results indicated that the ratio of down antiquarks to up antiquarks trends toward less than one, shaking up current assumptions about symmetry between these particles.

“We think in several months we will have enough data to confirm what NuSea saw,” said Paul Reimer, Argonne physicist and SeaQuest spokesperson. “Then we of course want to do better, which will take a year or more after that.”

The last time SeaQuest saw beam, it lasted about six weeks, from March 8 to the end of April 2012. The data from that run, Reimer says, was useful for debugging the detector and hammering out the algorithms they need to take data this time around.

During the roughly 17 months beam was turned off, researchers and technicians used the downtime to make technical improvements: replacing the vacuum beamline pipe and extraction septa, two critical pieces of equipment, and making several updates to the spectrometer, which collects data on the particles released in each interaction, allowing physicists to examine their behavior. They hope to achieve higher beam quality and smoother delivery of protons this time around, which should result in greater accuracy.

Reimer is pleased that the various postdocs and graduate students working on SeaQuest will now be able to complete their theses on the experiment. 

“I’m really excited to get stuff out for them,” he said.

One such student is Josh Rubin, a postdoc from the University of Michigan. Rubin looks forward to exploring new possible uses for the now-updated spectrometer.

“We feel like, especially after this accelerator shutdown period, we have a really nice detector and experiment now,” Rubin said. “We are all excited at the chance to study the sea of quarks.”

Sarah Witman

In Brief

Computer Security Awareness Day - today at 9 a.m.

Learn about today's computer security risks and how you can protect yourself online. The Computing Sector will host a number of sessions today in Wilson Hall. At the IT doctor booth, Dell Services will show you how to use the password reset service for Fermi Windows and service domains.

View the Computing Security Awareness Day schedule.

Photos of the Day

Veterans Day Celebration

Volunteers dish out a hot meal for attendees of the Veterans Day event at Kuhn Barn, complete with a festive sheet cake. Photo: Sarah Witman, DO
Each year, Fermilab hosts an event at Kuhn Barn to commemorate Veterans Day and recognize Fermilab employees who have served in the armed forces. Photo: Sarah Witman, DO
The Color Guard for the event comprised four students from East High. This traditional ceremony is meant to represent protecting the flag, therein guarding a nation's colors. Photo: Sarah Witman, DO
In the News

The experiments most likely to shake up the future of physics

From Wired, Nov. 11, 2013

Editor's note: This image gallery discusses many current and future particle physics experiments, including CMS, NOvA, LBNE and the Dark Energy Survey.

The current era of particle physics is over. When scientists at CERN announced last July that they had found the Higgs boson — which is responsible for giving all other particles their mass — they uncovered the final missing piece in the framework that accounts for the interactions of all known particles and forces, a theory known as the Standard Model.

And that's a good thing, right? Maybe not.

Read more

From ESH&Q

Winter weather: road closures and parking restrictions

These lime-green cones will mark the special no-parking areas during the winter.

Green cones will soon begin popping up in the parking lots — a sure sign that Fermilab is preparing for winter. It's time to take more care walking in parking lots and in choosing where to park. Just like last year, there will be some road closures.

Employees have suggested that we wait until the first significant snowfall to close roads. Based on their suggestions, we will close some roads starting with the first significant snowfall and then for the remainder of winter. These roads will reopen some time in late March, depending on weather forecasts. With the road closures, crews can maintain the same level of service in critical areas and extend the life of older roads.

North Eola Road from Batavia Road to Road C East and Wilson Road from McChesney to Road B will be closed. In addition, Main Ring Road will be closed to all traffic except emergency and service vehicles. Limited snow removal service in the Main Ring will provide access for only these vehicles. Service levels and access will not change in the F4/AZero and CZero areas.

Parking during the winter can also be more complicated. Every winter, FESS Roads and Grounds crews clear more than 85 parking lots across the Fermilab site.

In an effort to streamline parking lot plowing operations without jeopardizing safety, FESS Roads and Grounds, in cooperation with building managers, mark unneeded areas in about 25 parking lots that will not receive snow removal service. These areas are highlighted with lime-green safety cones.

The cones will designate the areas as no-parking zones throughout the winter season. They will remain in place until the second half of March. Fermilab security personnel will monitor the no-parking areas. Establishing these no-service areas will allow for effective and frequent snow removal efforts in high-priority snow removal locations while keeping costs low. In addition, the use of less salt and less fuel will have a beneficial environmental effect.

With more than 400 building entrances on site, it is challenging for snow crews to keep every entrance snow- and ice-free all winter. Employees and users are encouraged to walk more slowly, to take smaller steps, and to look closely for snow and ice. Uneven surfaces can complicate matters. Chunks of ice and snow or even coarse rock salt can cause normally smooth surfaces to become uneven. Wear footwear that provides traction on snow and ice, slow down, and don't let yourself become distracted while walking in winter conditions.

If you have questions about parking during the winter season, please contact the building manager for your work area.

Mike Becker, FESS

Construction Update

Temporary chilled-water lines keep progress flowing

Temporary chilled water pipes are now installed between NML and the Cryomodule Test Facility building. Photo: Jerry Leibfritz, AD

A creative solution was recently implemented at the NML SRF test facility complex to keep multiple projects moving forward.

Continued progress on the construction of the PXIE accelerator, located in the Cryomodule Test Facility, will soon require the use of low-conductivity cooling water. Since the completion of the permanent low-conductivity water system for CMTF is still more than a year away, the Accelerator Division had a plan to reuse a portable low-conductivity water skid, or movable system, for PXIE's initial commissioning. However, using this skid would require the purchase of a new chiller at a cost of approximately $200,000, and scientists would use it only for roughly one year.

To save money, the Accelerator Division proposed a creative solution to use the excess capacity from the existing large chiller located in the NML building next door to CMTF. This required installing more than 600 feet of PVC piping through the NML building, outside across the field and drainage culvert between the two buildings, and into the CMTF building. A couple of the NML SRF technicians developed a plan and installed the piping for a fraction of the cost of procuring a new chiller.

This solution proved to be a good decision in another important way. During the commissioning of the new CMTF cryogenic plant, there was a need for additional chilled water. AD technicians, who installed the original piping, devised a plan to tap into the newly installed PVC chilled-water piping and run a branch line to the CMTF compressor building. They completed the installation work over a weekend and were able to get the system fully operational in a little over a week.

Jerry Leibfritz

The white water pipes run from NML to the Cryomodule Test Facility, and the black pipes run to the cryoplant compressor building (through the brown building wall). Photo: Jerry Leibfritz, AD

Today's New Announcements

Local "administrator" accounts to be disabled

Take 5 and win a prize

Yoga begins today

CSADay 2013 training opportunities - today

Certified Administrative Professional - Lunch and Learn - Nov. 13

Lunch & Learn about Supplements and Cholesterol - Nov. 13

Butts & Guts begins Nov. 13

Physics Slam 2013 - Fermilab Arts & Lecture Series - Nov. 15

Artist reception for Fermilab Photography Club exhibit - Nov. 20

University of Chicago Tuition Remission program deadline - Nov. 21

Argonne-Fermilab-UChicago event: Clean Energy 2030 - Dec. 4

LabVIEW seminars offered Dec. 5

Labwide party - Dec. 6

Cisco AnyConnect client upgrade

Springer e-books available sitewide

Scottish country dancing returns to Kuhn Barn Tuesday evenings

International folk dancing returns to Kuhn Barn Thursday evenings