This high-resolution still image is from a video taken by several cameras as NASA’s Perseverance rover touched down on Mars on February 18. Credits: NASA/JPL-Caltech

NASA’s Perseverance rover, which successfully landed on Mars on February 18, is powered in part by the first plutonium produced at Department of Energy laboratories in more than 30 years. The radioactive decay of Pu-238 provides heat to radioisotope thermoelectric generators (RTGs) like the one onboard Perseverance and would also be used by the Dynamic Radioisotope Power System, currently under development, which is expected to provide three times the power of RTGs.

Idaho National Laboratory is scaling up the production of Pu-238 to help meet NASA’s production goal of 1.5 kg per year by 2026, the DOE announced on February 17.

Members of the Perseverance rover team in Mission Control at NASA’s Jet Propulsion Laboratory react after receiving confirmation of a successful landing. Photo: NASA/Bill Ingalls

NASA mission control and space science fans around the world celebrated the safe landing of the Mars 2020 Perseverance rover on February 18 after a journey of 203 days and 293 million miles. Landing on Mars is difficult—only about 50 percent of all previous Mars landing attempts have succeeded—and a successful landing for Perseverance, the fifth rover that NASA has sent to Mars, was not assured. Confirmation of the successful touchdown was announced at NASA’s Jet Propulsion Laboratory in Pasadena, Calif., at 3:55 p.m. EST.

“This landing is one of those pivotal moments for NASA, the United States, and space exploration globally—when we know we are on the cusp of discovery and sharpening our pencils, so to speak, to rewrite the textbooks,” said acting NASA administrator Steve Jurczyk. “The Mars 2020 Perseverance mission embodies our nation’s spirit of persevering even in the most challenging of situations, inspiring, and advancing science and exploration. The mission itself personifies the human ideal of persevering toward the future and will help us prepare for human exploration of the Red Planet.”

Only radioisotope thermoelectric generators (RTG) can provide the long-lasting, compact power source that Perseverance needs to carry out its long-term exploratory mission. Perseverance carries an RTG powered by the radioactive decay of plutonium-238 that was supplied by the Department of Energy. ANS president Mary Lou Dunzik-Gougar and CEO and executive director Craig Piercy congratulated NASA after the successful landing, acknowledging the critical contributions of the DOE’s Idaho National Laboratory, Oak Ridge National Laboratory, and Los Alamos National Laboratory.

The RTG used to power the Mars Perseverance rover is shown here being placed in a thermal vacuum chamber for testing in a simulated near-space environment. Source: INL

The Department of Energy’s Idaho National Laboratory is celebrating the scheduled landing of the Perseverance rover on the surface of Mars in just two days’ time with a live Q&A today, February 16, from 3 p.m. to 4:30 p.m. EST).

INL and Battelle Energy Alliance, its management and operating contractor, are already looking ahead to the next generation of plutonium-powered spacecraft: the Dynamic Radioisotope Power System (Dynamic RPS). INL announced on February 15 that it is partnering with NASA and the DOE to seek industry engagement to further the design of this new power system.

The Department of Energy has extended the public review and comment period for the Draft Versatile Test Reactor Environmental Impact Statement (DOE/EIS-0542) through March 2, 2021.

The DOE issued the draft EIS for the Versatile Test Reactor (VTR) for comment on December 21, 2020. The draft document identifies Idaho National Laboratory as the DOE’s preferred location for the VTR, a proposed sodium-cooled fast-neutron-spectrum test reactor that, according to the DOE, will enhance and accelerate research, development, and demonstration of innovative nuclear energy technologies.

In August 2020, Battelle Energy Alliance, which operates INL for the DOE, began contract negotiations with a Bechtel National–led team that includes TerraPower and GE Hitachi Nuclear Energy to support the design and construction of the VTR.

Work crews remove the first column filled with cesium from the Tank Closure Cesium Removal unit by crane in H tank farm at the Savannah River Site. Photo: DOE

Columns filled with cesium have been removed at the Savannah River Site in a demonstration project designed to accelerate removal of radioactive salt waste from underground tanks.

“On the surface, it appeared to be like any other crane lift and equipment transport, which are routinely performed in the tank farms. However, this equipment contained cesium-rich, high-level waste, which was transported aboveground via roadway to an on-site interim safe storage pad,” said Savannah River Remediation (SRR) president and project manager Phil Breidenbach. “It was all handled safely and executed with outstanding teamwork by our highly skilled workforce.”

Operated by liquid waste contractor SRR, a system known as the Tank Closure Cesium Removal (TCCR) unit removes cesium from the salt waste in Tank 10 in the site's H Tank Farm. The TCCR is a pilot demonstration that helps accelerate tank closure at the site, according to a report by the Department of Energy on February 9.

Graphical rendering of Fortis railcar design with spent nuclear fuel cask. Image: DOE

The Association of American Railroads (AAR) recently gave the Department of Energy approval to begin building and testing Fortis, a high-tech railcar designed specifically to transport the nation’s spent nuclear fuel and high-level radioactive waste. Fortis is one of two specialized railcars under development by the DOE that could be operational within the next five years.

Fortis is an eight-axle, flat-deck railcar that will be able to transport large containers of spent fuel and HLW. It is equipped with high-tech sensors and monitoring systems that report 11 different performance features back to the operators in real time. The railcar design was completed earlier this year, with technical support from Pacific Northwest National Laboratory.

According to the DOE, AAR signed off on the design in January, allowing the department to begin fabricating and testing the prototype in compliance with the rail industry’s highest design standard for railcars transporting spent fuel and HLW.

The Department of Energy’s National Nuclear Security Administration has extended to February 18 the public comment period for the scoping of its planned environmental impact statement (EIS) for the Surplus Plutonium Disposition Program, which would dilute and dispose of 34 metric tons of surplus military grade plutonium.

The NNSA on December 16 announced its intent to prepare the EIS, which will examine the agency’s preferred alternative, “dilute and dispose,” also known as “plutonium downblending,” and other alternatives for disposing of the material. The NNSA has been pursuing the dilute-and-dispose approach to managing the surplus plutonium following the cancellation of the MOX Fuel Fabrication Facility at the DOE’s Savannah River Site.

The American Nuclear Society is urging the National Nuclear Security Administration to rethink its “dilute-and-dispose” plan for managing surplus weapons-grade plutonium. In comments submitted to the NNSA, ANS notes that a better solution for the agency’s inventory of surplus plutonium is to convert it to nuclear fuel for advanced reactors, as was originally intended.

The comments are in response to a December 16 Federal Register notice by the NNSA that it intends to prepare an environmental impact statement on the scope of its Surplus Plutonium Disposition Program. According to the notice, the NNSA intends to dispose of the entire 34 metric tons of surplus plutonium using its dilute-and-dispose approach, whereby the material will be downblended and shipped as transuranic waste to the Department of Energy’s Waste Isolation Pilot Plant (WIPP) in New Mexico.

Under the Plutonium Management and Disposition Agreement, signed by the United States and Russia in 2000, the 34 tons of plutonium was to be converted to mixed-oxide nuclear fuel using the MOX Fuel Fabrication Facility at the Savannah River Site, in South Carolina. However, the Obama administration, citing rising costs, halted construction on the facility in 2016, and the project was eventually canceled in 2019.

Budil

Kim Budil has been named director of Lawrence Livermore National Laboratory. The announcement was made to laboratory employees today by Charlene Zettel, chair of Lawrence Livermore National Security (LLNS), which manages the laboratory for the Department of Energy's National Nuclear Security Administration.

Budil will begin her new role on March 2.

Details: Budil is the 13th director of LLNL since it was established in 1952 and its first woman director. She will also serve as president of LLNS, replacing Bill Goldstein, who announced his plans to step down last July, pending the successful search for his successor.

Granholm. Photo: Steve Jennings/Getty Images for TechCrunch

Jennifer Granholm, President Joe Biden’s nominee for energy secretary, told a Congressional panel that the administration disapproves of Yucca Mountain as the country’s nuclear waste repository, preferring a consent-based strategy as proposed by President Barack Obama’s Blue Ribbon Commission on America’s Nuclear Future.

“The administration opposes the use of Yucca Mountain for the storage of nuclear waste,” Granholm told Sen. Catherine Cortez Masto (D., Nev.), during a confirmation hearing before the Senate Energy and Natural Resources Committee on January 27.

Granholm, a Democrat, served two terms as Michigan governor from 2003 to 2011. According to reports, Granholm was twice considered a candidate to be energy secretary under President Obama, but ultimately was not picked.

Crews cleaned and demolished COLEX equipment on the west end of the Alpha-4 building at the Y-12 National Security Complex. Photo: DOE

The Department of Energy’s Oak Ridge Office of Environmental Management and its contractor UCOR have found a way to reuse instead of dispose of mercury collected from a cleanup project at the Y-12 National Security Complex, near Oak Ridge National Laboratory in Tennessee. “This questioning attitude and innovative thinking by our workforce is a major contributor to how our program is able to accomplish its projects under budget and ahead of schedule on a consistent basis,” said OREM manager Jay Mullis.

The DOE is conducting a number of projects to address mercury contamination—the most significant environmental risk is at Y-12, according to the agency. The work includes the cleanout and removal of equipment at Y-12's Alpha-4, a building that was used initially for uranium separation in 1944 and 1945. Ten years later, the building started being used for lithium separation, a process that required large amounts of mercury and involved column exchange (COLEX) equipment. Over the years, a significant amount of mercury from the process leached into the equipment, buildings, and surrounding soils.

Workers at LANL's RANT facility load the first comingled TRU waste shipment from the DOE and the NNSA. Photo: DOE

The Los Alamos field offices of the Department of Energy's Office of Environmental Management and the National Nuclear Security Administration have completed their first comingled shipment of transuranic (TRU) waste from Los Alamos National Laboratory to the Waste Isolation Pilot Plant in New Mexico.

"Comingling NNSA and EM waste allows for more efficient shipments to WIPP," Kirk Lachman, EM Los Alamos field office manager, said on January 14. "Reducing LANL’s above-ground waste inventory is an important issue to our local communities and is one of our mission priorities.”

The comingled shipment consisted of one Transuranic Package Transporter Model 3 container with a total of 28 drums and containers inside.

An aerial view of the Salt Waste Processing Facility at SRS. Photo: DOE

The hot commissioning testing phase of operations at the Salt Waste Processing Facility (SWPF) has been completed, signaling the facility’s entrance into fully integrated operations with the other liquid waste facilities at the Department of Energy’s Savannah River Site in South Carolina.

Radiation shielding, environmental emissions, and product waste acceptance requirements were all tested and validated during the commissioning phase of the SWPF, the DOE announced on January 19. The SWPF will treat the approximately 31 million gallons of remaining salt waste currently stored in underground tanks at SRS.

Parsons Corporation, the contractor that designed and built the first-of-a-kind facility, will operate the SWPF for one year, beginning this month. It is anticipated that the facility will process up to 6 million gallons of waste during the first year of operations.

President Biden has appointed Joyce Connery as chair of the Defense Nuclear Facilities Safety Board (DNFSB). Connery, an ANS member since 2012, was appointed to the board in August 2015 for a term ending in October 2019. She was confirmed again by the Senate as a DNFSB member on July 2, 2020, for a term expiring on October 18, 2024. Connery previously held the chairmanship from August 2015 until January 2017.

Image: Purdue University/Maria Okuniewski

A team of researchers led by Purdue University has used X-ray imaging conducted at Argonne National Laboratory’s Advanced Photon Source to obtain a three-dimensional view of the interior of an irradiated nuclear fuel sample. The use of synchrotron micro-computed tomography could lead to more accurate modeling of fuel behavior and more efficient nuclear fuel designs, according to the researchers.

The Department of Energy is considering disposing of contaminated process equipment from its Savannah River Site (SRS) at a commercial low-level waste facility using its recent interpretation of the statutory term “high-level radioactive waste,” which classifies waste generated from the reprocessing of spent nuclear fuel based on its radiological content rather than its origin.

A hot fire test of the core stage for NASA’s Space Launch System rocket at Stennis Space Center in Mississippi was not completed as planned. The SLS is the vehicle meant to propel a crewed mission to the moon in 2024. Source: NASA Television

Among the executive orders President Trump issued during his last weeks in office was “Promoting Small Modular Reactors for National Defense and Space Exploration,” which builds on the Space Policy Directives published during his term. The order, issued on January 12, calls for actions within the next six months by NASA and the Department of Defense (DOD), together with the Department of Energy and other federal entities. Whether the Biden administration will retain some, all, or none of the specific goals of the Trump administration’s space nuclear policy remains to be seen, but one thing is very clear: If deep space exploration remains a priority, nuclear-powered and -propelled spacecraft will be needed.

The prospects for near-term deployment of nuclear propulsion and power systems in space improved during Trump’s presidency. However, Trump left office days after a hot fire test of NASA’s Space Launch System (SLS) rocket did not go as planned. The SLS rocket is meant to propel crewed missions to the moon in 2024 and to enable a series of long-duration lunar missions that could be powered by small lunar reactor installations. The test on January 16 of four engines that were supposed to fire for over eight minutes was automatically aborted after one minute, casting some doubt that a planned November 2021 Artemis I mission can go ahead on schedule.

Slaybaugh

The Department of Energy’s Lawrence Berkeley National Laboratory recently named Rachel Slaybaugh, ANS member since 2003 and associate professor of nuclear engineering at the University of California–Berkeley, to lead the lab’s Cyclotron Road Division.

Get to know her: Prior to coming to Berkeley, Slaybaugh served as a program director for the DOE’s Advanced Research Projects Agency-Energy (ARPA-E), whose mission is to advance high-potential and high-impact energy technologies. From 2017 through 2020 at ARPA-E, Slaybaugh led programs supporting research in advanced nuclear fission reactors, agriculture technologies, and sensing and data analytics for four years.

The Department of Energy launched a 14-day public review and comment period on January 11 on a draft environmental assessment for a proposal to construct the Microreactor Applications Research Validation & EvaLuation (MARVEL) project microreactor inside Idaho National Laboratory’s Transient Reactor Test (TREAT) Facility.

The basics: The MARVEL design is a sodium-potassium–cooled thermal microreactor fueled by uranium zirconium hydride fuel pins using high-assay, low-enriched uranium (HALEU). It would be a 100-kWt reactor capable of generating about 20 kWe using Stirling engines over a core life of about two years.

The DOE proposes to install the MARVEL microreactor in a concrete storage pit in the north high bay of the TREAT reactor building. Modifications to the building to accommodate MARVEL are anticipated to take five to seven months. Constructing, assembling, and performing preoperational testing are expected to take another two to three months prior to fuel loading.

Baranwal

The Electric Power Research Institute today announced Rita Baranwal as its new vice president of nuclear energy and chief nuclear officer. Baranwal succeeds Neil Wilmshurst, who was promoted to senior vice president of energy system resources in November.

Baranwal most recently served as the Department of Energy’s assistant secretary for its Office of Nuclear Energy, where she managed the DOE's portfolio of nuclear research for existing and advanced reactors and new designs. Baranwal unexpectedly resigned from that position late last week.