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Nuclear calculations subject of classified colloquium Wednesday

Nothing less than the role calculations have played in decades of nuclear testing will be the topic of a classified Director's Colloquium by a veteran weapons scientist scheduled for Wednesday.

John Hogan, senior scientist at Sandia National Laboratories, will speak on "Slide Rules, Pocket Calculators and Nuclear Effects," at 1:10 p.m., Wednesday in the Administration Building Auditorium at Technical Area 3.

All attendees must be U.S. nationals who hold "Q" clearances and have sigmas 1-10 assigned by line management.

His talk will cover how such calculations were performed and scaling laws that emerged. He will provide several examples of calculational results, focusing on collateral damage, which has been a subject of discussion for decades among those engaged in planning for NATO and experts on tactical weapons.

The goal for the classified colloquium series is to disseminate important and interesting information on classified scientific topics to Los Alamos technical staff. The talks are planned to help inform a wide audience of Los Alamos' major classified scientific research and to stimulate discussions within an appropriate, secure environment, ultimately leading to future ideas and initiatives that will advance classified programs.

Transportation is available by calling 7-TAXI (7-8294) and indicating that you are attending the classified colloquium.

For more information, see Monday's Daily Newsbulletin.

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