Solar Energy News  
Test Results Show Active Denial System As Nonlethal Weapon

An operational version of the Active Denial System is shown. It is an invisible, counter personnel, directed-energy weapon. (U.S. Air Force photo)
by Dr. Gordon Hengst
Human Effectiveness Directorate
Wright-Patterson AFB OH (AFPN) Sep 30, 2008
Air Force Research Laboratory officials here recently completed an extensive bioeffects research program for an invisible, counter personnel, directed-energy weapon known as the Active Denial System.

Data showed that millimeter waves do not promote cancer or cause reproductive problems, and researchers also defined skin and eye exposure thresholds, as well as levels at which effective repel occurs.

Results demonstrate that the Denial System, or ADS, can be used operationally while maintaining a significant safety margin, thus making the device a landmark nonlethal weapon.

The bioeffects research effort also assisted hardware developers in their design of the novel weapon. The ADS program marks the first instance wherein a nonlethal weapon was founded on bioeffects research occurring prior to, rather than subsequent to, the weapons development process.

AFRL officials have been involved in researching the operationally useful effects of millimeter waves for almost 20 years.

These wavelengths occur in the one to 10 mm (0.04-0.4 in.) region of the electromagnetic spectrum, which means they are larger than infrared waves but smaller than radio waves or microwaves. Millimeter waves correspond to radio band frequencies of 30-300 GHz.

In the late 1980s, AFRL researchers discovered a particular effect of 94 GHz energy that ultimately became the basis for the ADS.

The system focuses a beam of millimeter waves occurring at this 94 GHz frequency.

The effect is a rapid heating of the human target's (adversary's) skin that is extremely uncomfortable and ultimately prompts the individual to flee the beam. The AFRL Joint Nonlethal Weapons Directorate, Air Force Force Protection Battlelab, and Office of the Secretary of Defense Advanced Systems and Concepts Office funded ADS development through an Advanced Concept Technology Demonstration.

This produced two versions of the system: a mobile version that has since served as a technology demonstrator and a containerized version that is suitable for operational deployment.

Related Links
The latest in Military Technology for the 21st century at SpaceWar.com



Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News


EADS announces delay in first flight of A400M military plane
Paris (AFP) Sept 25, 2008
European aerospace group EADS said Thursday the first flight of its A400M military transporter, planned for the end of the year, is now postponed to an indefinite date.







  • France's Areva eyes deal to supply two reactors to India
  • France and India vow to boost civil nuclear cooperation
  • Venezuela wants to work with Russia on nuclear energy: Chavez
  • US House approves historic India nuclear deal

  • Growth In The Global Carbon Budget
  • Emissions Rising Faster This Decade Than Last
  • China biggest carbon polluter, world levels at record: scientists
  • Researchers Find Animal With Ability To Survive Climate Change

  • Cadbury recalls China-made sweets from Hong Kong, Australia
  • France relaunches stormy debate on EU fishing quotas
  • Under Mao and Deng, milk was unknown in China
  • Cover-up as eight newborns die in Chinese hospital: report

  • Researchers Study Acoustic Communication In Deep-Sea Fish
  • Researchers Find Animal With Ability To Survive Climate Change
  • Formula Discovered For Longer Plant Life
  • America's Smallest Dinosaur Uncovered

  • Outside View: Reusable rocket breakthrough
  • Grant For Eco-Friendly Rocket Engine
  • College Students Develop Rocket Motors In Tamil Nadu
  • US marks Ares milestone in next chapter of manned space flight

  • Nuclear Power In Space - Part 2
  • Outside View: Nuclear future in space
  • Nuclear Power In Space

  • Students And Astronauts Use Powerful New Tool To Explore Earth From Space
  • Raytheon Completes Ground Segment Acceptance Testing For NPOESS
  • NRL HICO-RAIDS Experiments Ready For Payload Integration
  • Infoterra Adds High Resolution City Datasets

  • Microsoft courts Chinese consumers with slashed software price
  • Oracle, HP unveil computer to cope with digital explosion
  • Study Spotlights Anti-satellite And Space Debris Threats
  • Australian company launches 3D Internet tool

  • The content herein, unless otherwise known to be public domain, are Copyright Space.TV Corporation. AFP and UPI Wire Stories are copyright Agence France-Presse and United Press International. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space.TV Corp on any Web page published or hosted by Space.TV Corp. Privacy Statement