From the Director:
Work Planning Moves Forward
Last week, we invited in a team from Oak Ridge and Lawrence Berkeley
National Laboratories, led by Kyle Turner of McCallum-Turner, Inc., to perform an assessment of our ongoing Work Planning and Control program implementation. They focused on how the
WPC program was implemented at the worker level and shared their observations and recommendations with the
associate laboratory directors and me during an out-briefing last Friday.
The good news is that SLAC staff are generally aware of and using elements of WPC, such as understanding the hazards and controls of
your work, and authorization and release. They determined that many of you believe that the release process adds value, your roles as
area or building managers are better clarified and that a commitment to and understanding of Stop Work Authority is strong. They were generally impressed with how the organization was implementing WPC, given the stage of development of our program.
LCLS Team Installs Final Undulator
Mechanical Fabrication Department Mechanical Technicians Jeff Aldrich, Bhupinder Singh and Chris Brown installing the last undulator.
Signatures from the team are just visible at the right. (Photo
by Nicholas Bock.)
The Linac Coherent Light Source put a punctuation mark on recent progress
Wednesday, July 22, as staff
from SLAC's Mechanical Fabrication Department installed the last of the 33 undulator magnets that will be used to drive the LCLS
Team members scribbled their signatures on the undulator shells to mark the occasion, the row of
magnets stretching 433 feet along the length of the Undulator Hall.
The milestone highlights substantial progress this summer, which also saw
the introduction of new diagnostic equipment and first X-rays into the Front End Enclosure.
Wanted: Rogue Bolts
Have you seen one of these?
The SLAC Office of Assurance is on the lookout for stashes of bolts or parts bins, such as
those shown here.
Hidden in these bins may be high strength bolts that are not all they are purported to be; they are considered to be suspect or counterfeit items—S/CI—and can be easily identified by the markings on the bolt heads.
Pictured above are a few S/CI Grade 5 bolts found recently at SLAC.
The Office of Assurance would like to find, isolate, and destroy these bolts so they can’t accidently be used in a situation where failure could cause an accident or injury. If you have a stash of bolts, new or used, please contact Ruth McDunn,
who will help with identification.
Want to learn more about S/CI other than bolts? Visit the
Office of Assurance S/CI Web site.
Word of the Week: Eclipse
Voltage data from the solar-charged battery onboard
the Fermi Gamma-ray Space Telescope for the days prior
to and including the July 22 solar eclipse. (Image:
Fermi Gamma-ray Space Telescope Collaboration.)
During Wednesday's total solar eclipse, the moon
blacked out the sun from vantage points in India,
Asia and the Pacific Ocean for as long as 6 minutes, 39 seconds. Of course, it
also shadowed the intervening space, between the moon and Earth—including
by chance a
swath of the Fermi Gamma-ray Space Telescope's orbit.
The telescope passed
through the eclipse at roughly 3:30 Universal Time (3:30 a.m. at zero
longitude, or 8:30 p.m. PDT). The main power voltage to the Large Area Telescope
took a dip as the sun's power-charging rays hid behind the moon. The eclipse
created a downward spike in the LAT's regular cycle of increasing voltage
as the battery charges in the sun, followed by a drop as the battery discharges
during the telescope's brief night.