Isotopes & Radiation

International Atomic Energy Agency researchers have helped scientists on the Indian Ocean island nation of Mauritius to develop a variety of cauliflower that is resistant to black rot disease. The cauliflower was developed through innovative radiation-induced plant-breeding techniques employed by the Joint Food and Agriculture Organization (FAO)/IAEA Centre of Nuclear Techniques in Food and Agriculture.

In August, there was much buzz about the Food and Drug Administration ordering a recall on frozen shrimp imported from Indonesia that was found to be contaminated with cesium-137. While the level of radioactivity in the shrimp was orders of magnitude below a level that would cause any measurable harm to consumers, the concentration of Cs-137 was nonetheless unusual.

The Office of Radiological Security of the Department of Energy’s National Nuclear Security Administration has partnered with Texas A&M University to fight the New World screwworm (NWS), a devastating pest that damages—and sometimes kills—livestock, wildlife, pets, and humans.

Ranchers in Texas, alongside the U.S. Department of Agriculture, have been bracing for the return of the New World screwworm (NWS), a parasitic fly that lays its eggs in the wounds of warm-blooded animals and, once newly hatched, eats living flesh.

Media outlets have been abuzz this week with news of cesium-137 contamination in Great Value (Walmart’s private-label brand) frozen shrimp, according to a Food and Drug Administration report.

After two years of testing, the International Atomic Energy Agency and the University of the Witwatersrand in Johannesburg, South Africa, have begun officially implementing the Rhisotope Project, an innovative effort to combat rhino poaching and trafficking by leveraging nuclear technology.

The news is abuzz with recent stories about four radioactive wasp nests found at the Department of Energy’s Savannah River Site in South Carolina. The site has been undergoing cleanup operations since the 1990s related to the production of plutonium and tritium for defense purposes during the Cold War. Cleanup activities are expected to continue into the 2060s.

The day before the 2025 ANS Annual Conference officially began in Chicago, the air was abuzz with the crackle of Geiger counters at Argonne National Laboratory in neighboring Lemont, Ill., where about 100 visitors from across the country attended an outreach and education event hosted by the American Nuclear Society.

Workers with Oak Ridge Office of Environmental Management contractor Isotek have surpassed a significant milestone in the supply of medical radioisotopes, extracting more than 15 grams of rare thorium-229 through the Department of Energy’s Thorium Express Project.

Framatome announced that it has inaugurated a new workshop dedicated to the fabrication of fuel for research reactors and targets for medical isotopes at the company’s Romans-sur-Isère site in France. The workshops are part of Framatome’s CERCA division, which manufactures fuel and irradiation targets for research reactors.

Despite its significant benefits, the public perception of radiation is generally negative due to its inherent nature: it is ubiquitous yet cannot be seen, heard, smelled, or touched—as if it were a ghost roaming around uncensored. The public is frightened of this seemingly creepy phantom they cannot detect with their senses. This unfounded fear has hampered the progress of the nuclear industry and radiation professions.

Two research scientists from Japan’s Kyoto University and Kochi University of Technology visited the West Valley Demonstration Project in western New York state earlier this fall to test their novel radiation detectors, the Department of Energy’s Office of Environmental Management announced on November 19.

Oklo Inc. has that it has signed a letter of intent to acquire Atomic Alchemy Inc., a U.S.-based radioisotope production company. The two companies announced a strategic partnership earlier this year.

Workers recently completed an 18-month project replacing 11 hot cell windows at the 222-S Laboratory at the Department of Energy’s Hanford Site in Washington state. Hanford contractor Navarro-ATL manages the lab.

Key developments, emerging trends, challenges, and innovations in the field of health physics are the topic of a recently published article in Health Physics Journal. The authors of “The Future of Health Physics: Trends, Challenges, and Innovation,” Lekhnath Ghimire and Edward Waller, write that they hope to “foster dialogue and collaboration for the unpredictable yet exciting journey ahead” in health physics.

TerraPower Isotopes, a subsidiary of Bellevue, Wash.–based TerraPower, announced it is now producing actinium-225 at commercial scale, making the medical isotope available to the pharmaceutical industry through weekly production runs. As a result, TerraPower Isotopes said its actinium, after further manufacturing, is now used in multiple drug developers’ radiopharmaceuticals in human clinical trials across the globe.

Kasparov

More than 80 percent of the territory that has been surveyed around the Chernobyl nuclear power plant “can be returned to agricultural production,” said Valery Kashparov, director of the Ukrainian Institute of Agricultural Radiology (UIAR) of the National University of Life and Environmental Sciences of Ukraine.

Kashparov’s team of researchers reported in a recent article in New Scientist the results of its radiation surveys of areas around the site of the 1986 nuclear power plant accident. The group concluded that radiation measurements on much of the land are now below levels regarded as unsafe by Ukrainian regulators.

Decades of research: Kashparov, who has been with the UIAR since 1998, has spent the past 37 years conducting research related to Chernobyl, focusing on the physical-chemical and nuclear-physical properties of radioactive fallout in the area.

Kilindini Harbor in Mombasa, Kenya, is East Africa’s largest international seaport. But rapid development of the Kenyan coastal zone is changing sediment distribution and dispersal patterns in the region, and shifting sediment poses safety and efficiency risks to ships in the harbor. With help from the International Atomic Energy Agency, a team of researchers from Kenya and South Africa has deployed a unique system to measure natural radionuclides in beach and aquatic sediments and map sediment transportation in the region. The IAEA described the mission in a photo essay published August 21.

QSA Global, a provider of radioisotope products, and Niowave, a Michigan-based producer of medical radioisotopes, announced that the companies will codevelop a scalable radium purification process using Niowave’s radium-226 processing technology to meet the demand for actinium-225, an alpha-emitter used in the treatment of cancer. According to the companies, the strategic partnership marks a significant advancement in the field of radiopharmaceutical technology, enhancing the supply chain for critical radioisotopes, including Ac-225.

Niowave uses a closed-loop cycle to produce high-purity Ac-225 and other alpha emitters from Ra-226 using a superconducting electron linear accelerator. According to the company’s website, the electron beam impinges on a photon converter to irradiate the Ra-226, inducing a photon-neutron reaction to Ra-225, which decays to Ac-225.

The Defense Advanced Research Projects Agency (DARPA) Defense Sciences Office (DSO) wants to mimic and accelerate the natural half-life decay chain of alpha-emitting radioisotopes and plans to invite proposals for experimental or theoretical research tracks under Decay on Demand—a new DARPA disruptioneering opportunity. The solicitation was published in draft form on June 27.