Sandia LabNews

‘Friendly’ EMP improves survival for electronics

An EMP emitted by a nuclear weapon exploded high above the U.S. could disable the electronic circuits of many devices vital to military defense and modern living. Fortunately, military equipment is designed to be immune to various levels of EMP, and the validity of those designs has been tested and improved by a “friendly” EMP generator at Sandia.

Larry Luna elected American Society of Mechanical Engineers fellow

Sandia engineer Larry Luna has been elected a fellow of the American Society of Mechanical Engineers for significant achievements during more than 30 years of service and leadership. ASME fellows constitute about 3.5 percent of the organization’s more than 95,000 members. Larry was specifically recognized “for his contributions to the national security of the United States,” according to ASME.

Astra supercomputer at Sandia Labs is fastest Arm-based machine on TOP500 list

Sandia’s Astra is the world’s fastest Arm-based supercomputer according to the just released TOP500 list, the supercomputer industry’s standard. With a speed of 1.529 petaflops, Astra placed 203rd on a ranking of top computers announced at SC18, the International Conference for High Performance Computing, Networking, Storage, and Analysis, in Dallas.

Responders provide technical expertise in case of nuclear weapons accidents

The Accident Response Group provides technical expertise in assessing and safely resolving nuclear weapons accidents or "broken arrows." ARG brings together diverse experts from Sandia and other national labs, each with its own area of expertise. As the nuclear engineering lab, Sandia's focus is on the whole weapon.

Wind tunnel and lasers give nation a hypersonic proving ground

Sandia's hypersonic wind tunnel and advanced laser diagnostic technology are helping U.S. defense agencies understand the physics associated with aircraft flying five times faster than the speed of sound. With potential adversaries reporting successes in their own programs to develop aircraft that can be flown at Mach 5 or greater, U.S. development of autonomous hypersonic systems is a top defense priority.

Majority rules when looking for earthquakes, explosions

Finding the ideal settings for each sensor in a network to detect seismic activity can be a painstaking and manual process. Sandia researchers are working to change that. They have developed an algorithm that automatically adjusts seismic activity detection levels for each network sensor, tuning out everyday vibrations such as traffic or footsteps to better detect earthquakes and explosions.