Jefferson Lab Weekly Briefs January 16, 2013
Jefferson Lab Weekly Briefs
January 16, 2013
In Hall C, cutting of the Short Orbit Spectrometer shield house has started, and approximately half of the roof has been removed. In addition, installation of the rails for the Super High Momentum Spectrometer has begun.
The Great Spring Cleanup is Underway
JSA/JLab Graduate Fellowship Program
JSA/JLab Sabbatical and Research Leave Support Program
Preparing for operations last week, the FEL staff completed MIRAM curves for all 24 klystrons and loaded the values into the control electronics to mitigate against premature device failure. FEL staffers have been working with the lab Quality Assurance program to ensure FEL compliance with configuration management requirements. JLab worked this week with an audit to maintain its OHSAS 18001 compliance. Michelle Shinn presented "Exploring the Structure of Matter," at the Second Tuesday Forum at the Commodore Theatre in Portsmouth.
Center for Theoretical and Computational Physics
Members of the Theory Center, in collaboration with researchers in India and the University of Maryland, computed the excited state spectra for the baryons that can be constructed from the light up and down and the heavier strange quarks using lattice QCD. The pattern of the low-lying states revealed a straightforward counting, reflecting a simple symmetry in spin, flavor and color, based on the group SU(6) x O(3). They also found many states in which the gluons played an essential structure role, analogous to "hybrids" in mesons.
Hall D Cryogenics Design and Installation
Central Helium Liquefier-2 Warm Compressor and Warm Gas/Oil/Water/Air Management Systems
CHL2 300K-4.5K Cold Box Systems
CHL1 and Linac Summer Shutdown
End Station Refrigerator and Cryogenic Test Facility Refrigerator
Environment, Safety, Health and Quality
Snow Shoveling at JLab
Snow is not a routine event at JLab. But when it does snow, some people try to help make the sidewalks safe by taking it upon themselves to shovel the snow. Often the snow in Newport News is very heavy. Shoveling heavy snow places a person at increased risk for back injury. Other problems, such as heart attack, can also stem from shoveling.
For the safety of all JLab staff and the Facilities Snow Removal Team, do not arrive at the lab before the announced lab opening following a snow storm. Facilities Management has contract snow removal services to make JLab safely accessible. However, there may be places that the snow or ice has not been yet removed when you arrive for work. If you find such an area that needs attention and there is a sand bucket, you can spread sand on the slippery surfaces.
If there is an area of immediate hazard, submit a Facilities Work Order, mark it as Urgent, and then follow up with a call to x7400.
Computing and Networking Infrastructure
JLab ISDN Video Conferencing Is Changing
JLab Records Management for Everyone
Onsite Blood Drive Set for Friday, Jan. 25
Reminder: General Access RWP Available for Signature
Dog-Friendly Landscaping Tips and Therapy Dog Class
Tracking Thomas at JLab
Congratulations this week go to Sue Witherspoon and Michael Haddox-Schatz, who were the first to correctly identify the location for Jan. 9. Honorable mentions go to Samika Hawkins, Pam Turk and Robert Martin. Check out the Tracking Thomas webpage for a better view of his last location and this week's new mystery photo.
JLab Calendar of Events
Jan. 21: Martin Luther King Day holiday - JLab closed