Author: WeWorldMedia-admin

Lost Radiography Device

Published: 19 March 2025
Categories: IAEA

RSS feed source: International Atomic Energy Association--Nuclear & Radiological Events

Lost Radiography Device

Print View Posted on: 19 March 2025

Event Date: 06 March 2025 Event Type: Radiation Source Event Location: United States of America, Mentone, Texas / National Inspection Services, LLC INES Rating: 1 (Final)

On March 6, 2025, a radiography crew working approximately 16 km (10 mi) east of Mentone, Texas, reported losing a SPEC 150 exposure device containing a 3.53 TBq (95.4 Ci) iridium-192 source.

Update: On March 13, 2025, a member of the public contacted the licensee stating they had found the exposure device. The device was recovered by and is in the possession of the licensee. The device had remained in a locked shed since being found. The exposure device was found to be intact and no attempt was made to operate or tamper with the device. Exposure levels were normal and no individual would have received any significant exposure due to this event.

NRC EN57596

INES Rating: 1 – Anomaly (Final) as per 19 March 2025

Impact on people and the environment Release beyond authorized limits? No

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Chainmail-like polymer could be the future of body armor

Published: 19 March 2025
Categories: National Science Foundation

RSS feed source: International Atomic Energy Association--Nuclear & Radiological Events

Researchers supported by grants and instrumentation provided by the U.S. National Science Foundation have created the first 2D polymer material that mechanically interlocks, much like chainmail, and used an advanced imaging technique to show its microscopic details. The material combines exceptional strength and flexibility and could be developed into high-performance and lightweight body armor that moves fluidly with the body as it protects it.

The nanoscale material was developed by researchers at Northwestern University and the electron microscopy was conducted at Cornell University. The results are published in a paper in Science. 

Credit: David Muller, Schuyler Shi and Desheng Ma/Cornell University

The microscopic structure of a two-dimensional, mechanically interlocked polymer captured using an advanced electron microscopy technique.

Groundbreaking in more ways than one, the paper describes a highly efficient and scalable polymerization process that could potentially yield high volumes of this material at mass scale. In addition to being the first 2D mechanically interlocked polymer, it also contains 100 trillion mechanical bonds per 1 square centimeter — the highest density of mechanical bonds ever achieved in a material.    

“We made a completely new polymer structure,” says William Dichtel, a researcher at Northwestern University and one of the study’s authors. “It’s similar to chainmail in that it cannot easily rip because each of the mechanical

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Strengthening American Infrastructure (SAI)

Published: 17 March 2025
Categories: NSF Due Dates

RSS feed source: International Atomic Energy Association--Nuclear & Radiological Events

Synopsis

Strengthening American Infrastructure (SAI) is an NSF program seeking to stimulate human-centered, use-inspired, fundamental and potentially transformative research aimed at strengthening America’s infrastructure. Effective infrastructure provides a strong foundation for socioeconomic vitality and broad improvement in quality of life. Robust, reliable and effective infrastructure spurs private-sector innovation, grows the economy, creates jobs, makes public-sector service provision more efficient, strengthens communities, promotes equal opportunity, protects the natural environment, enhances national security and fuels American leadership. Achieving these objectives requires the integration of expertise from across all science and engineering disciplines. SAI focuses on how fundamental knowledge about human reasoning and decision-making, governance, and social and cultural processes enables the building and maintenance of effective infrastructure that improves lives and society and builds on advances in technology and engineering. Successful projects will represent a convergence of expertise in one or more social, behavioral or economic

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Launching Early-Career Academic Pathways in the Mathematical and Physical Sciences (LEAPS-MPS)

Published: 17 March 2025
Categories: NSF Due Dates

RSS feed source: International Atomic Energy Association--Nuclear & Radiological Events

NSF Financial Assistance awards (grants and cooperative agreements) made on or after October 1, 2024, will be subject to the applicable set of award conditions, dated October 1, 2024, available on the NSF website. These terms and conditions are consistent with the revised guidance specified in the OMB Guidance for Federal Financial Assistance published in the Federal Register on April 22, 2024.

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