A member of Brookhaven’s MIRP team in the new hot cell area used for processing targets to make medical isotopes such as actinium-225. (Photo: BNL)
A refurbished hot cell laboratory is allowing the Department of Energy’s Brookhaven National Laboratory to streamline the production and shipment of actinium-225 to support clinical trials of cancer therapies.
April 21, 2023, 3:19PMNuclear NewsSal Oriti, Ernestina Wozniak, and Max Yang The multimission radioisotope thermoelectric generator for NASA’s Mars 2020 Perseverance rover is tested at NASA’s Kennedy Space Center in 2020. The choice of an MMRTG as the rover’s power system gave mission planners significantly more flexibility in selecting the rover’s landing site and in planning its surface operations. (Photo: NASA)
Under the Radioisotope Power Systems Program, NASA and the Department of Energy have been advancing a novel radioisotope power system (RPS) based on dynamic energy conversion. This approach will manifest a dynamic RPS (DRPS) option with a conversion efficiency at least three times greater than a thermoelectric-based RPS. Significant progress has recently been made toward this end. A one-year system design phase has been completed by NASA industry partner Aerojet Rocketdyne, which resulted in a DRPS with power of 300 watts-electric (We) with convertor-level redundancy. In-house technology development at the NASA Glenn Research Center (GRC) has demonstrated the conversion devices in relevant environments and has shown all requirements can be met. Progress has also been made on the control electronics necessary for dynamic energy conversion. Flight-like controllers were recently upgraded and achieved an 11-percentage-point increase in efficiency. Control architectures have been developed to handle the multiconvertor arrangements in the latest DRPS design. A system-level DRPS testbed is currently being assembled that will experimentally demonstrate the DRPS concept being pursued.
MCRE could be built inside the ZPPR cell (shown here) at INL’s Materials and Fuels Complex. (Photo: INL)
A tiny 200-kWt reactor the Department of Energy says would be the first critical fast-spectrum circulating fuel reactor and the first fast-spectrum molten salt reactor (MSR) could be built and operated inside the Zero Power Physics Reactor (ZPPR) cell at Idaho National Laboratory’s Materials and Fuels Center (MFC). Details included in the Molten Chloride Reactor Experiment (MCRE) draft environmental assessment (EA)—released on March 16 for two weeks of public comment (later extended to four weeks, through April 14)—covered the potential environmental impacts associated with the development, construction, operation, and decommissioning of MCRE at INL, facilitated by the National Reactor Innovation Center (NRIC).
Situated in a 30-foot-deep pool, the 10 MW core of MURR is used to irradiate samples and produce isotopes for medical radiopharmaceuticals and research. (Photo: University of Missouri)
The University of Missouri intends to build a new, larger research reactor to produce medical radioisotopes, announcing that it intends to issue a request for qualification/request for proposal (RFQ/RFP) in April to solicit interest from qualified parties to provide preliminary designs and industry partnerships for the new reactor project, called NextGen MURR.
The UKAEA will provide novel fusion materials to be irradiated in ORNL’s HFIR facility over the next four years. Pictured (from left) are Kathy McCarthy, director of the U.S. ITER Project; Jeremy Busby, ORNL’s associate lab director for fusion and fission energy and science; Mickey Wade, ONRL Fusion Energy Division director; Ian Chapman, chief executive officer of the UKAEA; Cynthia Jenks, ORNL’s associate lab director for physical sciences; and Yutai Kato, ORNL Materials Science and Technology Division interim director.
The Department of Energy’s Oak Ridge National Laboratory (ORNL) and the U.K. Atomic Energy Authority (UKAEA) have formed a strategic research partnership to investigate how different types of materials behave under the influence of high-energy neutron sources. The five-year partnership was announced by ORNL and by the UKAEA on March 13.
A control room monitor at ORNL’s SNS displays the power level of 1,555 kW (1.55 MW), a world record for a linear accelerator used for neutron research. (Photo: Jeremy Rumsey/ORNL)
The Spallation Neutron Source (SNS) at the Department of Energy's Oak Ridge National Laboratory set a world record for accelerator-driven neutron research when its linear accelerator reached an operating power of 1.55 MW, improving on the facility’s original design capability of 1.4 MW. That higher power means more neutrons for researchers who use the facility for neutron scattering research to reach materials science advances, ORNL announced recently.
Artist’s rendering of an Xe-100 plant. (Image: X-energy)
Dow and X-energy announced today that they have signed a joint development agreement (JDA) to demonstrate the first grid-scale advanced nuclear reactor at an industrial site in North America within a decade. As part of the agreement, Dow is now a subawardee under X-energy’s Advanced Reactor Demonstration Program (ARDP) Cooperative Agreement with the Department of Energy.
SHINE’s isotope production building, called the Chrysalis, under construction in October 2022. (Photo: SHINE)
The Nuclear Regulatory Commission has issued its final safety evaluation report (SER) related to the operating license application for SHINE Technologies' large-scale medical isotope production facility, known as The Chrysalis, in Janesville, Wis. The SER documents the results of NRC staff’s technical and safety review of SHINE’s application. SHINE announced the NRC’s decision on February 27.
A record of decision concerning the proposed issuance of the operating license will be published by the NRC at a future date.