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"... The laser defense system, developed by Rafael Advanced Defense Systems, which is the prime contractor for the laser program, includes three main systems.
The first and largest is Iron Beam 450, an upgrade to the original system, which includes a 450 millimeter aperture beam director instead of 250 millimeters. This provides the system with an upgraded operating range, higher accuracy and extremely high efficiency. Iron Beam is the only system of its kind in the world with laser power as high as 100 kilowatts. The combination of high energy with the aperture beam director allows a range of about 10 kilometers, and high accuracy despite the limitations of the laser.
These limitations include a significant decrease in efficiency during cloudy and hazy conditions, while its major advantage is that each interception costs $5-$10 compared with $30,000 for each Iron Dome interception. Iron Beam works using a a single strong beam that diverges. It launches 100-200 such beams and when the system detects that one beam has hit its target, it instructs all the beams to be on an identical frequency and focus on the target.
Due to the limitations of the laser, Iron Beam and Iron Dome will be deployed side by side, complementing each other."
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