Lise Meitner and Otto Hahn in their lab in Germany in 1913.
Comparing matter to a “lush tapestry, woven from a complex assortment of threads,” physics writer Emily Conover traces the evolution of our understanding of the atom over the past century in the recent Science News article, “How matter’s hidden complexity unleashed the power of nuclear physics.” Conover uncovers how our vision of matter changed from that of a “no-nonsense plaid” to one of an “ornate brocade,” ultimately transforming nuclear physics from an arcane academic pursuit to something that forever changed the world.
The Indian Point nuclear power plant
With a blunt but indisputably accurate headline, an article from yesterday’s New York Times on the imminent closure of Indian Point makes it immediately clear what will happen when Unit 3, the nuclear plant’s last operating reactor, is shut down at the end of this month: The state of New York will be forced to rely more heavily on fossil fuels for electricity generation.
Following the retirement of Indian Point-2 last April, the share of New York’s power coming from gas-fired plants rose to about 40 percent, from about 36 percent in 2019, the piece notes, adding that the share from renewables moved up only slightly, to about 30 percent.
A current picture of the Fukushima nuclear power station with the more than 1,000 water storage tanks on site. Photo: Courtesy of TEPCO.
The Japanese government will soon announce the decision to dispose of stockpiled Fukushima wastewater into the Pacific Ocean, according to an AP News story published last Friday. The decision is years in the making and follows the guidelines from a panel of government-appointed experts named the Subcommittee on Handling of the ALPS-Treated Water (ALPS Subcommittee).
Construction of Norman was completed in 2017. Photo: TAE Technologies
TAE Technologies has announced that it has produced a stable plasma of over 50 million degrees celsius inside a fusion device using a beam-driven, field-reversed configuration. “By generating such stable high-temperature plasmas, TAE has now validated that the company’s unique approach can scale to the conditions necessary for an economically viable commercial fusion power plant by the end of the decade,” the company declared in its April 8 press release. The company added that the results indicate the design’s linear configuration improves plasma confinement as temperatures rise.
In this illustration of the effects of two neutron yields (50 kt and 1 Mt) and two neutron energies (14.1 MeV and 1 MeV), the black dots represent the location of a nuclear device. Dark blue indicates where the asteroid remains solid, while all other colors show where material has been melted or vaporized. The illustration depicts asteroids with 0.8-m and 5-m diameters—much smaller than the 300-m asteroid simulated in the study—to enhance the visibility of the area of the energy deposition. Image: LLNL
A research collaboration between Lawrence Livermore National Laboratory and the Air Force Institute of Technology (AFIT) has investigated how the neutron energy generated by the detonation of a nuclear device could affect the path and speed of an asteroid on a collision course with Earth by melting and vaporizing a portion of the asteroid. The research, which compared the deflection caused by two different neutron energies—14.1 MeV and 1 MeV, representing fusion and fission neutrons, respectively—is described in an article published by LLNL on April 8.
Crews move equipment used to inspect drums holding diluted plutonium into a storage site in K Area at the Savannah River Site. Photo: DOE
Workers at the Department of Energy’s Savannah River Site in South Carolina recently finished transferring equipment to the site’s K Area in preparation of shipping downblended plutonium to the Waste Isolation Pilot Plant in New Mexico for disposal. The plutonium is part of the 34 metric tons of surplus plutonium the National Nuclear Security Administration plans to ship to WIPP under the “dilute and dispose” option the department adopted following the cancellation of the MOX Fuel Fabrication Facility project.
NCSU: Site of the 2021 ANS Student Conference
North Carolina State University was finally able to host the ANS Student Conference, April 8 to 10. After the 2020 event was canceled due to the global coronavirus pandemic, the 2021 version is being held virtually for the first time.
The conference's opening session is available for registered attendees to view online.
Florida’s Turkey Point nuclear plant. Photo: FPL
The Nuclear Regulatory Commission on April 6 issued a violation notice and proposed a $150,000 civil penalty to Florida Power & Light Company for falsifying plant records and recording inaccurate data in maintenance records at its Turkey Point nuclear power plant near Homestead, Fla.
Point Beach Units 1 and 2. Photo: NRC
An atomic safety and licensing board has been established to address a hearing request filed on behalf of an antinuclear group regarding the subsequent license renewal (SLR) application for NextEra Energy’s Point Beach reactors, located near Two Rivers, Wis. The Nuclear Regulatory Commission published notice of the panel’s formation in the April 2 Federal Register.
The Maryland University Training Reactor, one of 12 TRIGA reactors currently operating at universities in the United States. Photo: University of Maryland
TRIGA International, the only supplier of TRIGA reactor fuel in the world, recently completed a major renovation project at its fuel fabrication facility in Romans, France. The Department of Energy, which provided both technical and financial support for the project, said the upgrades ensure the continued operation of 36 TRIGA reactors around the world, including 18 in the United States.
Workers remove asbestos siding panels from a Portsmouth Gaseous Diffusion Plant building. Photo: Business Wire
Fluor-BWXT Portsmouth, a joint venture of Fluor and BWX Technologies, along with engineering company Jacob, have received a contract extension valued at up to $690 million, including options, from the Department of Energy. The contract, announced April 6, is for environmental management work at the former Portsmouth Gaseous Diffusion Plant near Piketon, Ohio.
Byron Generating Station. Photo: Exelon
The University of Illinois Student Section and Chicago Local Section of the American Nuclear Society hosted a webinar, The Role of Nuclear Power in Illinois, on Wednesday, March 31. The webinar provided information for state lawmakers and the general public about the potential consequences of closing the Byron and Dresden Generating Stations, two of the nuclear power plants in the state of Illinois.
The webinar recording has been archived and is available for viewing for free at the above link.
Dry cask storage at the closed San Onofre Nuclear Generating Station in Southern California. Photo: Southern California Edison
Saying they are cautiously optimistic that the Biden administration can change the U.S. trajectory on nuclear waste, some Stanford University experts have offered their recommendations on how it can be done in a recent Stanford news posting.