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XENONnT Dark Matter Detector Captures Faintest Solar Neutrino Signal Ever Observed

September 1 news - The XENONnT dark matter detection experiment at the Gran Sasso National Laboratory in Italy has achieved new progress. The XENON collaboration research team announced that the detector has captured low-energy solar neutrino collision signals never observed before, lowering the neutrino detection energy threshold to approximately 17 kiloelectron-volts (keV). The research team's analysis indicates that the probability of the signal being merely a statistical fluctuation is less than one in a million. Neutrinos are elementary particles with no electric charge and extremely small mass, which can be produced in processes such as nuclear fusion reactions in the solar core, supernova explosions, and nuclear fission in reactors. Due to the extremely weak interaction between neutrinos and matter, vast numbers of neutrinos can pass through the Earth, which also makes detection...

2026-09-02

Major Breakthrough in Residual Stress Research on Key Aviation Materials in China

Nickel-based single-crystal superalloys are key materials for manufacturing turbine blades in aviation engines. Recently, the neutron scattering team from the Department of Nuclear Physics at the China Institute of Atomic Energy (CIAE) under CNNC, leveraging the Engineering Science Stress Spectrometer at the China Advanced Research Reactor (CARR), overcame technical challenges in residual stress measurement of single-crystal superalloys and established a precise three-dimensional residual stress testing method based on neutron diffraction. This provides an effective solution for residual stress assessment of critical aviation materials and lays a solid methodological foundation for the in-depth application of the CARR Engineering Science Stress Spectrometer in high-end manufacturing. During high-temperature heat treatment or service of nickel-based single-crystal superalloys...

2026-09-02

Russia to Conduct Comparative Measurements in Radiation Monitoring and Individual Dose Monitoring

In September, NIIEFA (D.V. Efremov Scientific Research Institute of Electrophysical Apparatus), a subsidiary of Rosatom, will jointly conduct comparative measurements in the fields of radiation monitoring (RM) and individual dose monitoring (IDM) with Ritverts JSC and the A.M. Nikiforov All-Russian Center for Emergency and Radiation Medicine. The work will be carried out under the supervision and support of experts from the D.I. Mendeleev All-Russian Research Institute for Metrology. The focus of these comparative measurements is to verify the accuracy, reliability, and consistency of measurement results obtained by different radiation safety monitoring methods and equipment. Through unified comparison, the performance of various instruments in workplace radiation level assessment, surface contamination monitoring, and individual exposure dose recording can be further confirmed, thereby enhancing the credibility of final radiation dose assessments.

2026-08-15

DXA Screening Among U.S. Medicare Population Declines 35% Over Nearly Two Decades

A new study shows that between 2005 and 2023, the rate of dual-energy X-ray absorptiometry (DXA) examinations among U.S. Medicare beneficiaries declined significantly, by 35%. DXA is commonly used for bone density testing and osteoporosis-related screening, and the findings suggest that disparities in screening access across different populations are widening. Researchers analyzed claims data from more than 5 million Medicare beneficiaries. The results showed that DXA utilization fell from 7,255 exams per 100,000 beneficiaries in 2005 to 4,690 per 100,000 beneficiaries in 2023. The study was published in Osteoporosis International. The decline was not uniform across populations...

2026-08-08

China's First Homegrown Radiopharmaceutical Receives Dual FDA Breakthrough Therapy and Fast Track Designations

On August 6, Nuoyu Medical announced that the U.S. Food and Drug Administration (FDA) has officially granted Breakthrough Therapy Designation (BTD) and Fast Track Designation (FTD) to the company's independently developed 68Ga-NYM096. This marks the first product in China's original radiopharmaceutical field to receive FDA Breakthrough Therapy Designation, and the first to receive both FDA Breakthrough Therapy and Fast Track designations simultaneously, creating a milestone breakthrough in the radiopharmaceutical field. 68Ga-NYM096 is a small-molecule diagnostic radiopharmaceutical for renal cancer that specifically binds to CAIX, suitable for positron emission tomography (PET) imaging of suspected or confirmed metastatic clear cell renal cell carcinoma (c...

2026-08-08

Researchers at the Institute of Modern Physics, Chinese Academy of Sciences, reveal the dual-directional role of shell effects in multinucleon transfer reactions

Recently, the research team from the State Key Laboratory of Heavy Ion Science and Technology at the Institute of Modern Physics, Chinese Academy of Sciences, together with collaborators, revealed the dual-directional mechanism of shell effects in multinucleon transfer reactions and proposed optimized reaction systems. This study provides new insights for the efficient synthesis of neutron-rich nuclides in the laboratory. The results were published in Physics Letters B. The synthesis and study of neutron-rich nuclides near the neutron magic number 126 are of special scientific significance, as the properties of these nuclides are directly related to how heavy elements such as gold and platinum in the universe are formed. However, efficiently producing these nuclides has long been an experimental challenge. Traditional fusion-evaporation...

2026-08-04