Scientists use nanowire array laser fusion target material to obtain nuclear fusion experiment efficiency

A team of scientists from Colorado State University (CSU) has made record-breaking progress in the efficiency of microstructure fusion experiments. By using nanowire arrays in the preparation of laser fusion target materials, more than previous nuclear fusion experiments were recorded. Efficiency 500 times the result. Research papers were published in the internationally renowned journal Nature-Communications.

CSU's research team uses a fairly compact laser on the table to emit laser pulses to a fusion target, rather than a larger, higher-power laser. The key to this breakthrough is that the material of the laser fusion target is not a traditional planar structure. The deuterated polyethylene was prepared by a nanowire array structure, and a fusion target of a nanowire array structure was bombarded with a femtosecond high-speed laser pulse to excite an ultra-high-density high-temperature plasma to emit deuterium atomic nuclei and a large amount of neutrons. The scientists report pointed out that their experimental efficiency in this experiment was that the laser energy per Joule could generate 2 million fusion neutrons, which is 500 times more efficient than previous fusion experiments using planar laser fusion target materials. The latest record of the same intensity laser fusion field.

The more efficient fusion neutron production method can benefit neutron imaging technology, and it can also help researchers better understand the interaction between light and matter.

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