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Science/Tech See other Science/Tech Articles Title: Directed energy weapons making jump from sci-fi to real world WASHINGTON — Five Pelican dropships and two Phantom troop carriers glide into view near snowcapped hills on a world with biomes similar to Earth’s. A handful of the warplanes break formation, ultimately bound for farther-flung targets, as volleys of neon green anti-aircraft fire erupt. Despite some dodging, the fire proves accurate, and one of the Pelicans is hit. It veers violently forward and smacks into another just in front. A cry for help is heard; then, an explosion. A voice over the radio warns of the dicey disembark to come. “Brace yourselves.” And, as players of Bungie’s smash-hit video game “Halo 3" regain control of Master Chief Petty Officer John-117, the virtual super-soldier hoists to his shoulder what millions of gamers have affectionately nicknamed the “Spartan Laser,” a hulking, fearsome weapon powered by futuristic battery cells. An E3 attendee wears Master Chief's helmet during an Xbox briefing. (Robyn Beck/AFP via Getty Images) When primed with a squeeze and hold of the controller’s trigger, the device unleashes a blast of directed energy capable of devastating multiple targets, virtual infantry and armored opponents. Heat management forces downtime between shots, a nod to the realities that often limit fire in real weapons. While such immensely powerful devices have long been a staple of computer games, movies and science-fiction novels, success in fielding practical weapons that can zap targets on real-world battlefields has eluded governments, scientists and defense contractors for more than a half-century. At least until recently. “The hundreds of systems in the field? It’s coming,” Andy Lowery, the chief operating officer of defense company Epirus, a developer of directed-energy and counter-drone systems, said in an interview. “You’ll see tens of billions of dollars, I think, being applied once we get into production, manufacturing and then operations and sustainment.” State of play The U.S. Department of Defense is spending an average $1 billion a year on developing directed-energy weapons with the goal of using them to defeat threats including drones and missiles. It requested at least $669 million in fiscal 2023 for unclassified research, testing and evaluation and another $345 million for unclassified procurement, the Congressional Research Service reported. Under Secretary of Defense for Research and Engineering Heidi Shyu included directed energy on a list of 14 critical and emerging defense technologies released in February 2022. Potential applications abound. High-energy lasers, HEL, and high-power microwave, HPM, systems can be used for short-range air defense, SHORAD, and to counter unmanned aerial systems, C-UAS, as well as rockets, artillery and mortars, C-RAM. “What does a laser do to impart damage on the set target, utilizing directed energy? It just basically heats up and melts, right? Just a ton of energy. There’s no, really, wave interaction,” Lowery said. “With HPM, you’re actually trying to use the electro-magnetics in the air to cease the ability for anything that uses voltage and current to work, and you’re trying to do that as efficiently as possible, because it’s not easy.” Post Comment Private Reply Ignore Thread
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