US withdraws 'heat ray' gun from Afghanistan
Page last updated at 10:50 GMT, Tuesday, 27 July 2010 11:50 UK
A heat ray gun developed by the US military has been withdrawn from Afghanistan, army chiefs have confirmed.
The Active Denial System (ADS) is a non-lethal weapon that heats up the skin "intolerably" but, according to tests, causes no permanent damage.
Its invisible beam is designed to repel enemies and disperse violent crowds, causing anyone targeted to immediately move away.
US military commanders in the country have had the weapon at their disposal but have now decided against using it.
The weapon was never actually deployed in a 'real life' scenario.
"The ADS was not used and was shipped from Afghanistan. The operational need for the device was not approved by commanders", confirmed Colonel Shanks, Chief of Public Affairs for ISAF.
The beam produced by the ADS can travel more than 500m (1,640ft) and is seen as a potential way to limit war zone fatalities in the future.
It's already been tested more than 11,000 times on around 700 volunteers, including journalists.
The US military says the chance of injury is 0.1% as the beam only penetrates the skin to the equivalent of three sheets of paper
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Source: Pasadena Star News
CASTAIC - A high-tech ray gun built for the military that fires an invisible heat beam capable of causing unbearable pain will be tested on unruly inmates in the sheriff's detention facility in Castaic, officials said Friday at an unveiling event.
The "Assault Intervention System" (AIS) developed by the Raytheon Co., could give the Sheriff's Department "another tool" to quell disturbances at a 65-inmate dormitory at the Pitchess Detention Center's North County Correctional Facility, said Cmdr. Bob Osborne, head of the technology exploration branch of the sheriff's Department of Homeland Security Division.
The 600-pound, 7-foot-tall device won't replace traditional methods such as tear gas, rubber bullets and batons, Osborne said.
"We're looking to see if we can exploit this science for the benefit of the Corrections Department," he said.
AIS fires a directed beam of invisible "millimeter waves" that cause an unbearable burning sensation by penetrating 1/64 of an inch into the skin, where pain receptors are located, said Mike Booen, Raytheon's vice president of advanced security and directed energy systems.
The beam, which is about the diameter of a compact disc, causes an instant and intolerable burning sensation when it touches skin, but the sensation stops instantly when the device is turned off or the target moves out of the beam.
At a news conference, several people volunteered to feel the effects of the machine first-hand.
Sheriff's Deputy David Judge manned the controls and fired the beam, using a joystick and a monitor, not unlike a video game, to aim the ray gun's camera.
Judge simply aligned cross-hairs in the center of the screen with his target and pulled the trigger. The beam can be targeted very precisely, allowing deputies to single out one person or even a specific body part.
One volunteer was able to stand in the beam's path for just 1.8 seconds before the heat sensation forced him to step out of the way.
"I don't care if you're the meanest, toughest person in the world. This will get your attention," Booen said.
The machine is designed to emit a burst of no more than three seconds with each trigger pull, but deputies can repeatedly fire the weapon as needed.
Similar devices have already been sold to the U.S. military, however the machine demonstrated Friday is the first to be placed in an American correctional institution, sheriff's officials said.
It is being installed as a test case at no cost to the Sheriff's Department, as part of a program through the National Institute of Justice, officials said.
"Millimeter wave" devices have been tested on more than 10,000 subjects so far and has been shown to cause no lasting injuries, Booen said.
"It's very, very safe," he said.
The unit at the Pitchess Detention Center has a range of 80 to 100 feet, which is more than enough for the dormitory space it's to be used in.
Raytheon, as a matter of policy, does not disclose the cost of the machines, Booen said, adding that he could not comment on how the military has used the devices.
When asked if the public can expect to see similar AIS devices mounted on patrol cars in the future or attached to deputies' utility belts, Osborne said, "not in my lifetime."
But Booen said his company is working on much smaller versions of the AIS. Progress on that research is a closely held secret, he added.
"That's our vision," said Booen. "We want to get to the point where it is a hand-held device."
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