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In this issue:
Growing Roots
Safety Review: Defining Scope

SLAC Today

Monday - July 28, 2008

(Photo - GLAST launches)
The GLAST spacecraft launches from Cape Canaveral. (Photo courtesy of NASA.)


As the Gamma-ray Large Area Space Telescope (GLAST) rocketed gloriously from the launch pad on June 11, it faded into the blue sky and out of sight. But GLAST isn't totally out of view: you can still see it soaring overhead in the southwest sky many nights. Check out this satellite tracking website to watch GLAST crawl around the globe. Click "5 Day Predictions" to find out exactly when GLAST should be visible from your home location. The website will also give you second-by-second updates of GLAST's altitude and speed.

GLAST is visible from the SLAC area for about 8 minutes at a time, so be sure to set your watch with care. The satellite circles the globe about 15 times per day with slightly alternating positions each time; on average you can see it one to three times per night. This week, early risers can look for GLAST at these times from the Palo Alto area:

• Thursday, July 31, 5:38–5:39 a.m.
• Friday, August 1, 5:30–5:35 a.m.

Growing Roots

(Photo - new Valley Oak tree outside building 40)
Photo by Zoë Macintosh.
Click for larger image.

Though SLAC's new Valley (or White) Oak may take 600 years to develop fully, according to Facilities Department Head Liam Robinson, it is "picturesque at any stage." Insusceptible to Sudden Oak Death, this genus will not fall to the fate of its predecessor, dead for years and removed last Monday.

Centuries in the future may be too far ahead to imagine the state of physics research, but for a sense of how large this tree could grow, visit this site.

Safety Review:
Defining Scope

This article is the first in a five-part series examining each of the five core functions of SLAC's Integrated Safety Management System. The core functions are hands-on tools to help you plan and conduct work in a safe manner. Their relationships are depicted in this handy diagram:

Click for larger image.

Defining the scope of a job, task or activity to be undertaken is the first core function in the ISMS safe work cycle. It's easy to follow this step by asking yourself "What do I want to do?" This step includes defining not only the work to be accomplished, but also any potential risks and means to alleviate them, as well as any safety or environmental policies that must be followed. Examples of work tasks might include welding a girder, draining a low-conductivity water pipe, testing a pressurized cooling system, changing out a beam line section or moving a concrete block with a forklift. Once the scope is identified, you should then check to ensure that the scope is permitted within the Radiation Protection Program, the Worker Safety Health Plan, the Environment, Safety & Health Manual, and any other safety requirements that might apply.

Supervisors, please discuss this core function with your team members. Ask them to think of their own examples of defining work, then have them check the examples against safety rules and regulations. This will be a great first step toward leading SLAC workers to think of safety in a truly integrated fashion.

Tomorrow's article will discuss the second core function, "Analyze Hazards."

See the Integrated Safety and Environmental Management Systems Web site for more helpful hints. Please call Steve Frey (x3839) if you have any questions.

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