With the National Science Foundation’s $2 million investment, the world’s most powerful laser will be doubled or even doubled. Researchers at the University of Michigan and collaborators from all over the world plan to upgrade the Hercules laser to upgrade its launch power from 300 TW to 500 TW and even 1,000 TW. (1 terawatt=1,000,000,000,000/10^12 watts)
With more concentrated laser energy, researchers can develop desktop-sized, smaller particle acceleration devices that can create high-energy particle beams or X-rays for medical and national security applications. They can also explore puzzles that have not yet been answered in astrophysics and quantum mechanics. .
According to the University of Michigan, Hercules' laser energy comes from five embedded laser pumps. In order to upgrade Hercules, the researchers will replace three of the customized laser pumps with commercial laser pumps. If the Hercules laser's launch power can reach 1,000 terawatts, it will once again become one of the most powerful lasers in the United States. In 2008, it won the Guinness World Records title of “the highest intensity laserâ€.
The upgraded Hercules will double or even triple the current launch power. When researchers first built Hercules in 2007, lasers built using commercial laser pumps were still unable to achieve a power of 300 TW. Therefore, researchers had to create their own laser pumps.
Nowadays, with the constant increase in the demand for commercial projects, commercial laser pumps nowadays have completely surpassed the customized laser pump used by Hercules. More powerful lasers can be used to create desktop-sized accelerators. Traditional particle accelerators are hundreds of kilometers long. For example, the European Nuclear Research Council’s Large Hadron Collider has 27 kilometers.
Lasers can accelerate particles and produce higher-energy beams of particles, such as X-rays. Particle beams and X-rays can be used to determine if nuclear material is present in port ship cargoes. They can also be used in the medical field for radiation therapy. High-energy X-rays generated by laser accelerators can also be used to create advanced X-ray imaging devices that allow doctors to identify the boundaries between different soft body tissues. Traditional X-rays can only recognize dense materials such as bones.
The researchers said that this method is also faster and cheaper than traditional MRI scans. In addition to these applications, more dense aurora energy can be used to explore more secrets of astrophysics and quantum mechanics. Karl Krushelnick, professor of nuclear engineering and radiology at the University of Michigan, said: “This upgrade will allow us to conduct a wide range of different experiments. This is a very exciting application and it also opens a new door for quantum physics. ."
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