Latest News----Institute of Modern Physics

Researchers Obtain New Results on Solar Wind Ion Charge Exchange

Charge exchange is one of the important mechanisms of soft X-ray emission in many celestial environments. Soft X-rays caused by charge exchange are important basic data for diagnosing plasma evolution and celestial plasma modeling. The researchers at IMP and their collaborators have recently obtained new results on the solar wind ion charge exchange. The researchers at the Institute of Modern Physics (IMP) of the Chinese Academy of Sciences (CAS) and their collaborators have recently obtained new results on the solar wind ion charge exchange. T...

| 14 04, 2021

Researchers Propose New Method to Improve Power Supply Control for High Intensity Heavy-ion Accelerator Facility

The project team of High Intensity Heavy-ion Accelerator Facility (HIAF) has recently achieved great results in research on power supply control with high power, high precision and fast cycle. The team has proposed a new analytical model with optimal control method and kinetic inductance fine-tuning method. The results were published in IEEE Transactions on Industrial Electronics. The project team of High Intensity Heavy-ion Accelerator Facility (HIAF) has recently achieved great results in research on power supply control with high power, high precision and fast cycle. The ...

| 14 04, 2021

Researchers Obtain New Analytical Solution to Quantum Chromodynamics Evolution Equation

A group led by Prof. CHEN Xurong at IMP has recently made new progress in the study of quantum chromodynamics (QCD) evolution equations and the gluon condensation. For the first time, researchers have successfully applied the "homogeneous balance method" to the QCD evolution equation and obtained an analytical solution of the Balitsky-Kovchegov (BK) evolution equation.A group led by Prof. CHEN Xurong at the Institute of Modern Physics (IMP) of the Chinese Academy of Sciences (CAS) has recently made new progress in the study of quantum chromodynamics (QCD) evolut...

| 15 03, 2021

Researchers Report Convenient Approach of Preparing Sub-Nanoporous Polymer Membranes

In a recent study published in ACS Applied Materials & Interfaces, researchers at IMP reported a convenient approach to prepare sub-nanoporous polycarbonate membranes. The new approach of preparing sub-nanoporous membrane is simple and controllable, and the prepared membrane can exhibit excellent ionic sieving property.Ion-tracked membranes have been widely used in the fields of water treatment, medicine sieving, molecular detection and preparation of nanomaterials due to their features of uniformity of channel d...

| 11 03, 2021

Scientists Reveal Reaction Mechanism of ⁸B Nucleus

Scientists have lately made new progress in the study of the reaction mechanism of the proton drip-line nucleus 8B. The study will help understand the effect of exotic structures such as the proton halo on the reaction characteristics.Scientists from the Institute of Modern Physics (IMP) of the Chinese Academy of Sciences (CAS) and their collaborators have lately made new progress in the study of the reaction mechanism of the pr...

| 09 02, 2021

Studies Reveal Irradiation Effect of MAX Phase

The behavior of materials in extreme environment is one of the problems which restricts the application and development of nuclear energy. Researchers from IMP have made important progress in a series of systematic studies on 312-MAX phase materials, including the irradiation performance evaluation, the mechanism of irradiation resistance, irradiation-induced phase transformation and its evolut...Fig. 1 Schematic diagram of Ti3AlC2 series of phase transformations induced by irradiation, each of phase components, and their structures from TEM images. (Image by SUN Jianrong)
　　The behavior ...

| 09 02, 2021

Scientists Establish a New Model of α-cluster Formation in Heavy α-emitters

Researchers at IMP and their collaborators have established a new model—multistep model, and calculated the corresponding formation probability of some typical α-emitters. The present work may help scientists to get more information of superheavy nuclei, and provide a distinctive way to clarify the neutron-proton pairing properties in N≈Z nuclei. As one of the most important decay modes for heavy and superheavy nuclei, α-decay was regarded as a quantum-tunneling effect firstly in the pioneering works of Gamov, Condon and Gurney in 1928, wh...

| 07 02, 2021

Researchers Obtain New Results on Dielectronic Recombination Precision Spectroscopy

Researchers at IMP and their collaborators recently obtained new results on dielectronic recombination precision spectroscopy. The precision spectrum obtained in this work can not only be used to study the energy level structure of highly charged ions and thereby test the theory, but also provide high-precision benchmark data for the diagnosis and modeling of astrophysical and fusion plasmas. Researchers at the Institute of Modern Physics (IMP) of the Chinese Academy of Sciences (CAS) and their collaborators recently obtained new results on dielectronic recombination precision spectrosc...

| 08 01, 2021

Half-aperture Prototype of Superconducting Combined-function CCT Magnet for HIAF-HFRS Successfully Completes Cryogenic Test

The half-aperture CCT (Canted-Cosine-Theta) superconducting Quadrupole-Sextupole-Combined-Function magnet prototype, which is independently developed by the High Intensity heavy-ion Accelerator Facility (HIAF) team, has completed its first time full-load current excitation test on December 25. The half-aperture CCT (Canted-Cosine-Theta) superconducting Quadrupole-Sextupole-Combined-Function magnet prototype, which is independently developed by the High Intensity heavy-ion Accelerator Fac...

| 31 12, 2020

Researchers Clarify Role of Nucleon-nucleon Correlation in Transport Coefficients and R-mode Instability of Neutron Stars

Researchers at IMP have recently clarified the role of the nucleon-nucleon correlation in the thermal conductivity and shear viscosity in the AK (Abrikosov and Khalatnikov) framework. The result was published in Physical Letters B. As a class of compact objects, neutron stars (NSs) contain extreme neutron-rich matter at supranuclear density in their interiors. And a rapidly rotating NS is regarded as a gravitational wave sour...

| 29 12, 2020