Photo: Los Alamos National Laboratory
Scientists at Los Alamos national laboratory (USA) has developed a system that allows you to identify signs of radioactive decay. The device captures particles of uranium or plutonium using the optical trap, after which it is possible to identify fluctuations due to emitting child particles, according to a press release on Phys.org.
Researchers have shown that it is technically possible to determine the exact kinetic energy of a nuclide which was emitted by radioactive particles. To do this, the particle of micrometer or submicron size is placed in “optical tweezers” is a device that allows you to manipulate the object using laser light. It fully absorbs the recoil momentum in the emission of the nuclide and begins to oscillate, which can be easily detected.
Experts plan to improve the method to accurately measure the vibration of a particle and the recoil energy. This will determine the isotopic composition of the radioactive particles the size of the order of a nanometer and less. This approach can be applied in nuclear forensics when you need to determine the sources of radiation that can be used as a weapon of mass destruction.
Video, photo All from Russia.