DARPA tested an awesome plan to find dirty bombs

The Defense Advanced Research Projects Agency held a massive scavenger hunt in the nation’s capitol to collect data on how to find dirty nuclear bombs planted by terrorists.

DARPA-youtube-SIGMA-scavenger-hunt-nuclear-dirty-bomb-detection

Photo: YouTube/DARPA

Participants in the scavenger hunt, mostly ROTC cadets and midshipmen from the nearby Naval Academy, were playing a game to find a geneticist who was “mysteriously abducted.” But they carried cell-phone sized sensors that sniffed out radioactive material as they moved around the city for hours, allowing DARPA to test the ability of the sensors to search for a covert nuke.

The sensors, part of DARPA’s SIGMA program, are low-cost gamma and neutron radiation sniffers that are networked with smartphones so they can relay information to a central point.

DARPA-youtube-SIGMA-nuclear-dirty-bomb-detection

Photo: YouTube/DARPA

Before this scavenger hunt, DARPA had only tested up to 100 sensors at a time. But the network of sensors is supposed to provide coverage of entire cities or regions, allowing law enforcement to search for and find stolen or smuggled nuclear material before it can be used in a weapon.

In a real attack, police would need to scan vast areas using hundreds or more sensors. So, the Nov. 10 test featured 1,000 sensors feeding their information into the program’s software.

The scavenger hunt scenario was developed to keep the cadets and midshipmen engaged as they carried the devices around Washington, D.C., for hours. Even larger tests are planned for 2017 and DARPA partners hope to push the final version of SIGMA to local, state, and federal police in 2018.

Dirty bombs are conventional explosives with nuclear material mixed in or layered on top of the main charge. The nuclear material does not significantly add to the total blast force of the weapon, but it is spread over a large area to frighten residents and to force a costly and time-consuming cleanup process.

Dirty bombs are easier to make than standard nuclear devices, and the government has worked to prevent a dirty bomb terrorist attack for years.

TOP ARTICLES
This vehicle is bristling with weapons to shoot down Kim Jong-un's aerial menace

Whether the plane is carrying bombs, rockets, missiles, or some of Kim Jong-un's goons, the Hybrid BIHO will make sure they never get through.

That time two luxurious ocean liners fought an intense old-time naval battle

The German ship Cap Trafalgar disguised itself as the HMS Carmania to lure and destroy British merchant ships. Its first victim was the real HMS Carmania.

This is the dummy's guide to the rail gun

Designed to double the muzzle velocity of all naval artillery weapons to hypersonic speeds up to Mach 6, the Navy's rail gun system uses advanced technology that is a pain in the butt to understand

This is what Sikorsky thinks should replace the Blackhawk

The Defiant is fast, it can carry a lot of troops, and it's armed to the teeth.

How one vet learned to actually appreciate his deployment to Iraq

This veteran believes God used the Iraq war to fulfill Biblical prophesies, and he's written a four part series to explain it.

Combat Controller receives Air Force Cross for valor in Afghanistan

Air Force Staff Sgt. Richard Hunter was awarded the Air Force Cross Oct. 17 for actions during an eight-hour firefight in Kunduz Province, Afghanistan.

This is what Iran will do if the US pulls out of the nuke deal

President Trump is threatening to back out of the Iran nuclear deal — in direct opposition of the other five countries involved. Here is what Iran thinks.

Why Hollywood prescribes pot to its veteran characters with PTS

A new Netflix comedy takes a lighthearted look at the growing use of medical marijuana to treat veterans who suffer from post-traumatic stress.

Does this picture show the US covertly moving SEALs into Korea?

The USS Michigan stopped in Busan for a "routine port visit," but pictures of the event suggest a more clandestine purpose that may involve US Navy SEALs.

How ISIS became a 'pathetic and a lost cause' after the fall of Raqqa

Special presidential envoy for the Global Coalition to Defeat ISIS, Brett McGurk tweeted photos of a mass ISIS surrender.