The Beam And Electron Beam Collided Green Laser Pointer
When light shines on an object, some green laser pointer scatter back from the surface of the object. But if the object moves fast enough and the light is strong enough, strange things will happen. For example, electrons shake violently and slow down because they radiate too much energy. This process is called "radiation reaction". Scientists believe that this reaction occurs around objects such as black holes and quasars, so being able to measure the radiation response in the laboratory will help them better understand what is happening in some of the most extreme environments in the universe. Now, a research team led by British Imperial College scientists has observed a radiation reaction in the laboratory for the first time by colliding a laser beam that is trillions of times brighter than the surface of the sun with a beam of high-energy electrons. The study was published in the Physical Review X published on the 8th. Researchers explain that the energy of photons reflected from a moving object near the speed of light increases, so under the extreme conditions of the latest experiments, the reflected light will change from the visible part of the spectrum to high-energy gamma rays. The research author, Dr. Stuart Mungers, Department of Physics, Imperial College of Technology said. When we detected very bright high-energy gamma-ray radiation. We know that the green laser pointer beam and the electron beam collided.
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We also found that the green laser pointer. The energy of successfully colliding electrons was lower than expected. This is clear evidence of the radiation response. This shows that electrons are effectively blocked by a piece of light that is less than one hair thick. In addition, the experimental data also fits better with theoretical models based on quantum electrodynamics principles (rather than Maxwell's equations), which can help scientists better understand quantum electrodynamics. These experiments have also become the basis for high-intensity laser research in the quantum field. The researchers also pointed out that they plan to conduct more experiments next year with higher intensity or higher energy electron beams. This green laser pointers study is confirmed.With the recent introduction of 445nm direct blue laser diodes to the commercial market, high-power handheld lasers with output power up to 1W will now be available at a significantly reduced cost, enabling more people to use a technology that was once exclusive. Custom lasers equipped with 445nm direct blue laser diodes have far greater power output than any other visible handheld laser and can cause serious injury if not handled properly, most likely resulting in permanent visual impairment.
2020-02-24 06:33:13
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