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In this issue:
Good Calibrations
Safety Today: ES&H Service Requests and Safety Issue Reporting
STAR Program Receives Boost

SLAC Today

Tuesday - March 18, 2008

Georg Gassner, at the SLAC Calibration Facility, with a laser tracker mounted on a calibration device.

Good Calibrations

Like most men with work trucks, SLAC Geodetic Engineer Georg Gassner uses his for hauling equipment. However, when he transports the most accurate field instrument in the world, he takes extraordinary precaution. He places the $140,000 laser tracker in a strapped down case, padded with a 5-inch layer of foam.

Portable laser trackers provide incredibly accurate measurements—up to 30 micrometers for distance and 1 arc second for angles. Laser trackers' measurements make them ideal tools for aligning large mechanisms in endeavors demanding extreme precision. At SLAC, laser trackers will allow the heavyweight machinery of the Linac Coherent Light Source (LCLS) to be positioned down to 80 micrometers over short distances and to 300 micrometers over the machine's 140-meter length.

"It would be virtually impossible to meet the geometrical requirements for the LCLS without the help of laser trackers," Gassner said.  Read more...

(Column - Safety Today)

ES&H Service Requests and the Reporting of Safety Issues


The Environment, Safety and Health (ES&H) division recently reviewed the way it handles service requests and safety issue reporting. The lab currently has three telephone numbers relating to safety: emergencies (911), safety service requests (x4554), and hotline issues (x4641). These numbers will remain in service, but their functions have shifted slightly.

All environmental, safety and health emergencies should be reported by calling 911. 911 is our lifeline to internal and external emergency assistance and will bring in medical, fire or police assistance, as needed. Please note that calling 9-911 and calling 911 will both connect you to emergency response.

By dialing the second number (x4554), a caller reaches the Safety Service desk, where he or she can report any environmental, safety or health concerns not considered to be an emergency or life threatening. This phone number remains in service, ringing in the safety offices and, in the event no one is there, ringing at Security.

The third number (x4641) has in the past been known as the "safety hotline." It was originally established to provide SLAC employees with a way to report an anonymous safety issue. As with x4554, this number remains in service, however it is not for emergency use and thus will no longer be considered a "hotline." The 4641 extension is now to be used only if there is an issue you wish to report anonymously, and will from now on be referred to as the "anonymous report line."

Remember: Dial x4554 for safety related concerns of a non-emergency nature, x4641 for anonymous reports and 911 for all emergencies.

STAR Program
Receives Boost


California Polytechnic State University President Warren Baker welcomes members of the STAR Program last summer.

SLAC will soon begin bringing future science teachers to the lab for a summer of research through the Science Teacher and Researcher (STAR) program, thanks to outside funding from the S.D. Bechtel, Jr., Foundation.

The STAR program awards stipends to California State University undergraduate students planning a career in science education. Paid laboratory research internships will be provided to the prospective science teachers in the hope that the experience will translate into excellence in the classroom.

"We have so many people who go into teaching biology, but very few who go into chemistry and physics," SLAC Education Officer Susan Schultz said. "This is an attempt to bolster the number of high-quality teachers in those content areas."

SLAC will offer five undergraduate students an 8-week internship beginning in late June. Another forty interns will be divided between Livermore National Laboratory, Berkeley National Laboratory and the NASA Ames Research Center, in addition to a handful of other private research groups.

The STAR program is unique in that it offers long-term support to undergraduates with an interest in teaching. Once accepted into the program, students will be invited back to the laboratory on two more occasions: once during their credential year and again after teaching a few years in the classroom.

"The ultimate goal is to help prepare quality science teachers who have engaged in research with the hope that they will transfer their knowledge and excitement about science to their students," said Schultz.

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