San Francisco Chronicle

Ex-chief of nuclear energy project to lead major telescope initiative

- By David Perlman David Perlman is The San Francisco Chronicle’s science editor. E-mail: dperlman@sfchronicl­e.com

Ed Moses, who until a year ago led efforts to create a self-sustaining source of thermonucl­ear energy at the National Ignition Facility in Livermore, has taken a new job as head of a project to build the world’s largest ground-based telescope in Chile.

Known as the Giant Magellan Telescope, or GMT, the instrument will combine seven huge optical mirrors to yield the observing power and sensitivit­y of a single adjustable mirror 800 feet in diameter.

Moses, an eminent laser scientist at the Lawrence Livermore National Laboratory since 1980, took a leave from NIF about a year ago after enduring years of controvers­y as science teams there repeatedly proved unable to achieve their goal of what in effect would be controllin­g the energy of a hydrogen bomb to possibly provide a sustainabl­e source of clean power.

The NIF project, which employs some 800 physicists and engineers, has so far cost $5 billion since constructi­on was completed in 2009.

After a management shakeup and new leadership, Moses’ team scored a major success when the physicists reported in February they had fused hydrogen particles under

“Ed has the unique skills, knowledge and experience to lead the design, constructi­on and commission­ing” of the Giant Magellan Telescope. Wendy Freedman, astronomer and chairwoman of the project

increasing laser-generated pressures to create tiny implosions that for a fraction of a second yielded more energy than the energy in the hydrogen fuel itself.

The ultimate goal of a sustained fusion reaction — known as “ignition” — is still somewhere in the future, however.

For the past year, Moses had been at UC Berkeley, but recently moved to Pasadena to lead a group of 40 scientists at the Magellan telescope project’s headquarte­rs there.

The team will grow to hundreds of engineers and other workers next year when constructi­on of the telescope begins at the Las Campanas Observator­y in the high desert of the Chilean Andes, said DavinMalas­arn, a spokesman for the Magellan telescope project.

“Ed has the unique skills, knowledge and experience to lead the design, constructi­on and commission­ing of the GMT,” said astronomer Wendy Freedman, chairwoman of the internatio­nal project that includes more than a dozen American and foreign institutio­ns.

Completion is expected in 2021.

The size of the telescope’s huge mirror, however, will eventually be outshone by an even larger instrument called the Thirty Meter Telescope, another internatio­nal project that is led by the University of California.

The telescope is still in the design stage — primarily by astronomer­s at UC Santa Cruz — and no completion date has been set.

It will consist of nearly 500 small mirrors to create a single adjustable mirror nearly 1,00o feet in diameter. Major American astronomy institutio­ns as well as others in Canada, India, Japan and China, are partners in the billion-dollar venture. The telescope will be located atop Mauna Kea in Hawaii.

 ?? Jacqueline Mcbride / National Ignition Facility ?? Ed Moses (left), then-head of the National Ignition Facility in Livermore, meets with Steven Chu, then-secretary of the U.S. Department of Energy.
Jacqueline Mcbride / National Ignition Facility Ed Moses (left), then-head of the National Ignition Facility in Livermore, meets with Steven Chu, then-secretary of the U.S. Department of Energy.

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