The successful determination of the nuclear life of 94 species of abundant nucleons helps to understand the mystery of the synthesis of heavy elements of rare earths.

TOKYO, Feb. 22 (Reporter Chen Chao) A joint team from the Japan Institute of Science and Chemistry and Peking University recently used heavy ion accelerators to successfully determine the life of 94 kinds of rich nucleuts with mass numbers A to 144 to 174.
these abundant nucleuts are associated with the generation of rare earth-like elements.
team published the results recently in the online edition of Physical Review Express.
They first irradiated the nucleus of 13 elements from cesium (Cs, atomic number 55) to(Ho, atomic number 67) with a high-strength uranium beam, and then measured its lifespan, successfully measuring the life of 94 types of prolifying nucleus, 75 of which were first measured.
systematic analysis of the obtained data, it is found that the decay rate of the elements of the n-97 and N-105 has accelerated rapidly.
the synthesis of heavy elements in the solar system through theoretical calculations of the r process (fast-middle-to-middle-capture process), 57 new data have been found to play a very important role in the composition of rare earth elements.
rare earth elements, including radon, are widely used in mobile phone electronic parts, automotive engines, laser optics and other high-tech products.
about the origin of rare earth-like elements, it is generally believed to have originated from supernova explosions that occurred at the end of their lives.
supernova explosion produces a large number of neutres, and the nucleus of the element in the star that is lighter than iron absorbs the neutre, while beta decays to form a stable heavy nucleus.
a series of explosive heavy element synthesis processes called the "r process."
recently, some scientists believe that it is possible that neutr stars may have combined to produce large numbers of abundant neutre super-elements, which are produced by a nuclear fission reaction.
the time, scale, and amount of heavy elements produced by the r-process, the life of the nucleus needs to be understood.
the theoretical calculations so far, so experiments are needed to verify them.
the results of this study have greatly improved the uncertainty of the synthesis of rare earth elements, and taken a big step towards solving the mystery of the origin of the synthesis of heavy elements.
Source: ScienceDaily.