Jefferson Lab Weekly Briefs
July 30, 2008
12 GeV Upgrade
At the request of the Office of Nuclear Physics, Daniel Lehman, Director of the Office of Project Assessment in the DOE Office of Science, led a team of 24 experts in an Independent Project Review of the 12 GeV Upgrade at JLab on July 22-24. The purpose of the review was to assess all aspects of the project – technical, cost, schedule, management and ES&H – with regard to satisfying the requirements for Critical Decision-3, Approve Start of Construction. The review team concluded that the project meets all requirements and endorsed approval of CD-3. The next steps are a follow-up JSA Earned Value Management System implementation review by DOE OECM, which is scheduled for Aug. 12-13, and a CD-3 meeting with the Office of Science Acquisition Executive anticipated in September.
The installation of the polarized helium-3 target is proceeding smoothly. Three pairs of Helmholtz coils have been successfully mounted on the pivot and are being surveyed. Although the helium leakage in the Hall A cryosystem was measured to be much lower than expected, the cryo-leads on Q3 of the right High Resolution Spectrometer are in the process of being repaired.
The G0 superconducting magnet was removed from Hall C and has been relocated to the the lead storage building.
The consolidated repair effort of transformer LN1 is currently in procurement. The Gun 3 lifetime test was completed, and a Pockels cell for Gun 3 was installed and aligned. A breaker in the south linac was replaced along with a defective cable; work at repairing various problems with NL04 and NL06 cryomodules continued. Planned maintenance on the arc box supplies is well underway. Additionally, use of klystron lifting devices has been halted until safety certification and documentation can be assessed.
Free-Electron Laser (FEL)
After working though an oxygen deficiency hazard assessment that shut the gun test stand down for seven weeks, FEL staff now has a stop work so folks can find documentation for previously approved lift fixtures. Installation of the final three sextupoles and upgraded optical transport cans is on hold.
JLab's Safety Numbers
289 Days since Last Recordable Accident (JLab record: 319)
JLab Calendar of Events
Aug. 1: Summer Student Programs Poster Session
Environment, Safety, Health & Quality
Recently, there have been two notable events involving slip and fall incidents. According to the Centers for Disease Control, falls are the leading cause of injury, death and emergency department visits for people over age 65. Fortunately, both of our colleagues were treated and released with no restrictions.
Remember to maintain awareness of potential hazards while moving in or around the site. Contributing factors such as rain, deviating from a normal pace, or movement between uneven surfaces can increase the risk of injury to yourself and others. The CDC recommends these tips for preventing falls:
JLab's five core functions of Integrated Safety Management include analyzing the hazards, using the appropriate hazard controls and performing the work within those controls. This applies to seemingly benign tasks as well, so be aware of the hazards no matter what the task.
Savannah River Site Lesson Learned
Property Management Reminder: Removing Property
An Employee Property Pass or loan agreement with another institution is required from the Jefferson Lab Property Office before property is removed from the lab. While offsite, the safe keeping of the property is the responsibility of the employee or institution having temporary custody. For more information, consult the JLab Property Manual.
JLab Colloquium and Public Lecture: Sustainable Energy
Summer Student Poster Session
Performance Appraisals are Approaching
Training classes are being conducted this week. New employees and supervisors are encouraged to attend, as well as anyone involved in the matrixing process. To sign up, visit the training page and click on "All On-Site Training."