Latest News----Institute of Modern Physics

Physicists Reinvestigate Nuclear Excitation by Electron Capture Using Isomer Beam

To reinvestigate isomer depletion, researchers at IMP and their collaborators used an isomer beam to avoid contamination from the heavy gamma background. The significantly increased experimental sensitivity indicates that it is a promising approach for studying isomer depletion. A “dark” environment was created at the Radioactive Ion Beam Line in Lanzhou (RIBLL), China, to look for a faint flash of light as evidence of isomer depletion. Such depletion is required to harn...

| 23 06, 2022

Researchers Develop a Low-background Neutron Detector Array

A research team at IMP, together with their collaborators from Sichuan University and Chinese Institute of Atomic Energy, has recently developed a high-efficiency low-background neutron detector array, which is essential for the precise cross-section measurement of the 13C(α,n)16O reaction at stellar energies in China Jinping underground Laboratory. The study has been published as a cover arti...A research team at the Institute of Modern Physics (IMP) of the Chinese Academy of Sciences (CAS), together with their collaborators from Sichuan University and Chinese Institute of Atomic Energy, ...

| 22 06, 2022

New Proton Capture Reaction Rate of Copper-57 Changes Nucleosynthesis Paths in Type-I X-ray Burst

An international research team has recently developed a new proton capture reaction rate of copper-57 for the extreme astrophysical environment at the surface of neutron stars. The researchers found that the new reaction rate changes some of the most critical nucleosynthesis paths in Type-I X-ray bursts. An international research team has recently developed a new proton capture reaction rate of copper-57 for the extreme astrophysical environment at the surface of neutron stars. The researchers foun...

| 17 06, 2022

Researchers Reveal Nanohardness and Microstructure Evolution of Nitride Coating Under Irradiation

Researchers at IMP have obtained new results on the nanohardness and microstructure evolution of nano-structured TiAlN coating under irradiation. Researchers at the Institute of Modern Physics (IMP) of the Chinese Academy of Sciences have obtained new results on the nanohardness and microstructure evolution of nano-structured TiAlN coating u...

| 02 06, 2022

Physicists Discover New Isotope Thorium-207 and Odd-Even Staggering in α-decay Energies

A research team at IMP, together with their collaborators, has recently synthesized a new isotope thorium-207, and discovered a regular and distinct odd-even staggering in α-decay energies for nuclei with Z>82 and N<126.A research team at the Institute of Modern Physics (IMP) of the Chinese Academy of Sciences (CAS), together with their collaborators, has recently synthesized a new isotope thorium-207, and discove...

| 24 05, 2022

Researchers Develop New Method to Enrich Uranium in Seawater

Researchers at IMP have developed an innovative method of pre-enriching uranium in seawater by membrane filtration. Researchers at the Institute of Modern Physics (IMP) of the Chinese Academy of Sciences (CAS) have developed an innovative method of pre-enriching uranium in seawater by membrane filtration.
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| 25 05, 2022

Study Reveals High Turnover and Rescue Effect of a Scaffold Protein in Response to Heavy-ion Radiation

Researchers at the Microbeam Technology and Applications Group at IMP have discovered the high turnover and rescue effect of an important scaffold protein in response to heavy charged particle radiation.Researchers at the Microbeam Technology and Applications Group at the Institute of Modern Physics (IMP) of the Chinese Academy of Sciences (CAS) have discovered the high turnover and rescue effect ...

| 20 05, 2022

New Proton Capture Rate of Arsenic-65 Changes Periodic Thermonuclear X-ray Bursts

Researchers have computed a significantly revised proton capture reaction rate of arsenic-65 for the extreme astrophysical environments of accreting neutron stars, permitting astrophysicists to probe the mechanism of periodic thermonuclear X-ray bursts. Figure 1. A sequential two-proton capture on germanium-64 produces arsenic-65 and selenium-66 isotopes in the envelope of accreting neutron star during a thermonuclear X-ray burst. (Image by LU Nin...

| 27 04, 2022

Researchers Report a Surface Modification Method to Improve Corrosion Resistance of Steel to Liquid Lead-bismuth Eutectic

Researchers at IMP used the shot peening process to nanocrystallise the surface of ferrite/martensitic steel SIMP, a candidate structural material for lead-cooled fast reactors. They investigated the corrosion behaviour of the SP samples exposed to liquid LBE, in comparison with that of the original coarse grain (CG) samples. Fig.1 Cross-sectional SEM morphologies of (a) the original and (b) the surface nanocrystallised SIMP steels after exposure to oxygen-saturated liquid LBE at 550℃ for 120 h. (Image by MA Zhiwei)
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| 27 04, 2022

First Mass Measurement Using Rare-RI Ring Reveals Fine Structure of Element Abundance Patterns

Scientists have demonstrated the effectiveness of an innovative nuclear mass measurement method, using the rare-RI ring (R3) facility at Japan’s Radioactive Isotope Beam Factory, and applied this method to the mass measurement of a neutron-rich palladium isotope. Scientists at the Institute of Modern Physics (lMP) of the Chinese Academy of Sciences (CAS) and their collaborators have demonstrated the effectiveness of an innovative nuclear mass measurement me...

mass measurement;rare-RI ring facility | 22 04, 2022