Latest News----Institute of Modern Physics

First Slow Extraction of Beam with Maximum Magnetic Rigidity at HIRFL-CSRm

On January 1，the beam with the energy of 150 MeV/u was extracted smoothly within 3 seconds from the main cooling storage ring (CSRm) at the Heavy Ion Research Facility in Lanzhou (HIRFL). It is the first time that the beam with the maximum magnetic rigidity has been extracted by the slow extraction system at HIRFL-CSRm. This great improvement will benefit users in material research, bioscience...On January 1, the Bi36+ beam with the energy of 150 MeV/u was extracted smoothly within 3 seconds from the main cooling storage ring (CSRm) at the Heavy Ion Research Facility in Lanzhou (HIRFL).
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| 08 01, 2020

Researchers Find an Isomeric State in ²¹⁸Pa

Researchers from the Institute of Modern Physics (IMP) of the Chinese Academy of Sciences and their collaborators have recently found an isomeric state in 218Pa for the first time. Isomeric transitions in nuclei near closed proton or neutron shells are of special interest, for they provide relatively pure and detailed information on the single-particle structure of these nuclei.The result remov...Researchers from the Institute of Modern Physics (IMP) of the Chinese Academy of Sciences and their collaborators have recently found an isomeric state in 218Pa for the first time. The result was p...

| 03 01, 2020

Scientists Reveal Type II Shell Evolution in Odd-Z Nuclei

The mass measurement collaboration of the Cooler Storage Ring at the Heavy Ion Research Facility in Lanzhou ( HIRFL-CSR ) lately revealed the type-II shell evolution in odd-Z nuclei for the first time. The shell structure may vary in a phenomenon called shell evolution, which is one of the research frontiers of nuclear physics. On November 27, the results were published in Physical Review C as ...The mass measurement collaboration of the Cooler Storage Ring at the Heavy Ion Research Facility in Lanzhou (HIRFL-CSR) lately reported first precision mass measurements of the isomeric and ground ...

| 25 12, 2019

HIRFL Begins Operation with Continuous Wave Linac Injector

China ' s first beam commissioning of SSC-Linac as an injector of the Separate Sector Cyclotron ( SSC ) was performed successfully by researchers from the Institute of Modern Physics ( IMP ) of the Chinese Academy of Sciences .On December 17, the particle energy of 5.98MeV/u was obtained at the exit of SSC at the Heavy Ion Research Facility in Lanzhou (HIRFL). China's first beam commissioning of SSC-Linac as an injector of the Separate Sector Cyclotron (SSC) with the 40Ar7+ beam was performed successfully by researchers from the Institute of Modern Phys...

| 20 12, 2019

First In-ring Nuclear Reaction Experiment Conducted at HIRFL-CSR

Recently , the first in-ring nuclear reaction experiment at the Cooler Storage Ring at the Heavy Ion Research Facility in Lanzhou ( HIRFL-CSR ) has been operated successfully .The results provide new research opportunities for the nuclear matter distribution studies on exotic nuclides by using the in-ring nuclear reaction setup at the HIRFL-CSR facility .Recently, the first in-ring nuclear reaction experiment at the Cooler Storage Ring at the Heavy Ion Research Facility in Lanzhou (HIRFL-CSR) has been operated successfully.
　　Nuclear matter distr...

| 18 12, 2019

Scientists Reveal Reaction Mechanisms of Weakly Bound Projectiles

Scientists from the Institute of Modern Physics ( IMP ) of the Chinese Academy of Sciences and Universidade Federal Fluminense of Brazil lately made progress in the study of reaction mechanisms of weakly bound projectiles .Scientists from IMP launched studies of reaction mechanism of the 9Be + 197Au system , and the systematic properties of 9Be induced reactions at above barrier energies .It wa...Scientists from the Institute of Modern Physics (IMP) of the Chinese Academy of Sciences and Universidade Federal Fluminense of Brazil lately made progress in the study of reaction mechanisms of we...

| 27 11, 2019

Researchers Set New World Records of Beam Intensity of Highly Charged Uranium Ions

Research in nuclear reaction plays a vital role in our quest to understand microstructures of atomic nuclei and the mechanisms involved in their interactions .The highly charged uranium ion beams used in the research were produced by SECRAL-II , which was developed independently by IMP and was one of the best performing ECR ion sources for highly charged ion beams in the world .Research in nuclear reaction plays a vital role in our quest to understand microstructures of atomic nuclei and the mechanisms involved in their interactions. However, some important nuclear reacti...

| 12 11, 2019

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

First Slow Extraction of Beam with Maximum Magnetic Rigidity at HIRFL-CSRm

Researchers Find an Isomeric State in 218Pa

Scientists Reveal Type II Shell Evolution in Odd-Z Nuclei

HIRFL Begins Operation with Continuous Wave Linac Injector

First In-ring Nuclear Reaction Experiment Conducted at HIRFL-CSR

Scientists Reveal Reaction Mechanisms of Weakly Bound Projectiles

Researchers Set New World Records of Beam Intensity of Highly Charged Uranium Ions

Researchers Find the Threshold Voltage Controlling Nanochannel Ions Rectification

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

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

Researchers Find an Isomeric State in ²¹⁸Pa