Latest News----Institute of Modern Physics

Researchers Find the Threshold Voltage Controlling Nanochannel Ions Rectification

The existence of the threshold voltage which can switch the rectification state of ions in nanochannels was firstly revealed by researchers from the Institute of Modern Physics ( IMP ) .When the threshold electric field is exceeded , the carboxyl-cation bond of the PET molecular chain on the pore surface breaks , which leads to the dissociation of cation and the rearrangement of the molecular c...The existence of the threshold voltage which can switch the rectification state of ions in nanochannels was firstly revealed by researchers from the Institute of Modern Physics (IMP). The result wa...

| 28 10, 2019

DAMPE Achieves High-Precision and High-Energy Cosmic Ray Proton Spectrum Measurement

The Dark Matter Particle Explorer ( DAMPE , also known as " Wukong " ) collaboration recently reported the precise measurement of the energy spectrum of cosmic ray protons from 40 GeV to 100 TeV energies .Precise measurements of the proton energy spectrum are the key to understanding some fundamental questions of cosmic ray physics .The charge resolution can reach a high level of 0.059 @ Z = 1 ...The Dark Matter Particle Explorer (DAMPE, also known as "Wukong") collaboration recently reported the precise measurement of the energy spectrum of cosmic ray protons from 40 GeV to 100 TeV energie...

| 28 10, 2019

Enhancing enzymatic hydrolysis yield of sweet sorghum straw polysaccharides by heavy ion beams irradiation pretreatment

Recently, researchers in the Biophysics Laboratory at the Institute of Modern Physics have made new progress in the study of lignocellulosic pretreatment by 12C6+ irradiation to improve the enzymatic hydrolysis yield and its mechanism, using the experimental platform at the Heavy Ion Research Facility in Lanzhou (HIRFL).Biomass is one of the most widely distributed renewable energy sources on the earth. It plays an irreplaceable role in replacing traditional fossil fuels, alleviating energy crisis and solving envi...

| 17 06, 2019

Endocytosis-mediated mitochondrial transplantation: Transferring normal human astrocytic mitochondria into glioma cells rescues aerobic respiration and enhances radiosensitivity

This study is the first to introduce mitochondrial transplantation into the field of tumor radiotherapy, and propose that autologous mitochondrial transplantation could be a therapeutic intervention that uses mitochondria from patients who are both the donor and recipient. Since mitochondria are processed outside the body and reintroduced into the same patient, this therapy would be of high spe... Recently researchers in the Radiation Medicine Group at the Institute of Modern Physics, Chinese Academy of Sciences obtained new findings on starvation-induced endocytosis via NAD+-CD38-cADPR-Ca2...

| 05 06, 2019

Highly Relativistic Bound Systems Described by a Novel Theoretical Approach

The researchers obtain the pion and the kaon parton distribution functions (PDFs) from the overlap of the eigenstates of an effective confining and chiral Hamiltonian in the valence quark-antiquark representation suitable for low-momentum scale applications. After QCD evolution, the PDF of the pion is shown in Fig.1 which describes the probability of finding a parton (quark, gluon) carrying a (...Pions and kaons, the two lightest mesons, have long been postulated as a combination of a valence quark-antiquark pair strongly bound by the strong nuclear force mediated by gluons. The systems are...

| 08 05, 2019

Important progress of mononuclear rhenium carbonyl complex in the gas phase

Recently, the systematic study on the Group-VII Re carbonyls formed in the gas-phase chemical reactions was carried out. This work was led by the researchers from nuclear chemistry group of IMP in collaboration with the researchers from RIKEN (Japan) and PSI (Switzerland). This work provided a good foundation for future investigation on the superheavy Bh carbonyl complexes.Recently, the systematic study on the Group-VII Re carbonyls formed in the gas-phase chemical reactions was carried out. This work was led by the researchers from nuclear chemistry group of IMP in ...

| 25 04, 2019

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 ...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 s...

| 18 01, 2019

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 longstand...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...

| 12 12, 2018

Neutron Star Cooling with a Dynamic Stellar Structure

Neutron star cooling is a hot topic that connects nuclear physics and astrophysics. The observations combined with theory of neutron star (NS) cooling play a crucial role in achieving the intriguing information of the stellar interior, such as the equation of state, composition, and superfluidity of dense matter. The traditional NS cooling theory is based on the assumption that the stellar stru...Neutron star cooling is a hot topic that connects nuclear physics and astrophysics. The observations combined with theory of neutron star (NS) cooling play a crucial role in achieving the intriguin...

| 12 12, 2018

HHG-XUV Laser Lights in Reaction Microscope for Ultrafast Dynamics Studies in Lanzhou

On 5th December 2018, at the Institute of Modern Physics, Chinese Academy of Sciences in Lanzhou, the Atomic and Molecular Dynamics Team succeeded in putting the XUV laser produced by high-harmonic generation (HHG) method and the associated reaction microscope into operation, and the first kinematically-complete experiment on photoionization of atoms by XUV photon has been initiated which is al...On 5th December 2018, at the Institute of Modern Physics, Chinese Academy of Sciences in Lanzhou, the Atomic and Molecular Dynamics Team succeeded in putting the XUV laser produced by high-harmonic...

| 07 12, 2018