Institute of Modern Physics, Chinese Academy of Sciences

The Institute of Modern Physics (IMP) of the Chinese Academy of Sciences was founded in l957. As of 2013, the institute had 892 staff members including 403 researchers, as well as 284 master's and doctoral students.IMP operates the Heavy Ion Research Facility in Lanzhou (HIRFL), which consists of the Sector Focusing Cyclotron

  • Highly Efficient and Selective Dissolution Separation of Fission Products by an Ionic Liquid [Hbet][Tf2N]: A New Approach to Spent Nuclear Fuel Recycling

    Reprocessing of spent nuclear fuel has became the key issues for the environmentally friendly and sustainable development of nuclear energy. With the help of the external neutron source, the rest spent nuclear fuel after removing the part fission products will be refabricated to new nuclear fuel and burned. For those volatiles and semi-volatile fission products would be easily removed by using a dry-processing technique processes. For lanthanides, which accounts for about 1/3 of the fission products, must be separated from minor actinides before next transmutation step because the high neutron capture cross sections of some lanthanides, named as neutron poisons, inhibit efficient transmut...Learn more

  • Generalized isobaric multiplet mass equation and its application to the Nolen-Schiffer anomaly

    The Wigner isobaric multiplet mass equation (IMME) is the most fundamental prediction in nuclear physics with the concept of isospin. However, it was deduced based on the Wigner-Eckart theorem with the assumption that all charge-violating interactions can be written as tensors of rank two. This should be generalized for a general situation. In addition, the Nolen-Schiffer anomaly is a longstanding historical problem, which is an anomaly because when all the corrections were taken into account, there remained a consistent underestimate of theCoulomb displacement energy by about a few to ten percent. The Coulomb displacement energy—the difference in binding energy between two members of a ...Learn more


CiADS will be the world's first megawatt-class accelerator-driven subcritical system research facility.


In China, the Heavy Ion Research Facility at Lanzhou (HIRFL) is one major national research facility fo...

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