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Nuclear Sciences Division

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Featured News

illustration showing different scales of boehmite, from atoms to the macroscale
NOVEMBER 21, 2023
Article

Predicting Nanoparticle Assembly Across Scales

Resolving how nanoparticles come together is important for industry and environmental remediation. New work predicts nanoparticle aggregation behavior across a wide range of scales for the first time.
( Read More )
Scientist holds bottle of tank waste with cesium removed
NOVEMBER 16, 2023
Feature

Removing Cesium: Solutions to a Chemically Complex Problem

PNNL chemical engineer Reid Peterson helped develop the process to pretreat Hanford Site tank waste by removing cesium-137.
( Read More )
gender champions
NOVEMBER 28, 2023
Article

PNNL Joins Gender Champions in Nuclear Policy

PNNL has joined Gender Champions in Nuclear Policy, a leadership network that brings together leaders of organizations working in nuclear policy who are committed to breaking down gender barriers.
( Read More )
Aluminum crystals found in radioactive Hanford tank waste
SEPTEMBER 26, 2023
Article

IDREAM Poem Takes First Place in DOE Poetry of Science Art Contest

A poem inspired by radioactive tank waste—“Can a Scientist Dream it Alone?”—was awarded first place in the Department of Energy’s Poetry of Science Art Contest.
( Read More )
Michael Minette extends his hands, each with a different size of muddy sludge that was separated through the puck-like device.
MAY 12, 2022
Feature

Size Matters for Speeding Up Nuclear Waste Cleanup

This PNNL-developed separation system quickly and successfully separates larger particles from smaller ones at various scales, in different solid-liquid mixtures and at different flow rates.
( Read More )
Radioactive Material Transportation Packaging Units
MARCH 29, 2022
Staff Accomplishment

Fabrication of New Radioactive Material Transportation Packaging Under Way

A PNNL team is leading the design, fabrication, and regulatory testing, and delivery of new packaging units that will be used to ship radioactive materials safely and securely.
( Read More )
Edgar Buck
FEBRUARY 23, 2022
Staff Accomplishment

Buck Tapped as Chief Specialty Editor for Frontiers in Nuclear Engineering

Materials scientist joins the editorial board of inaugural journal, Frontiers in Nuclear Engineering.
( Read More )
Photo of Steve Spurgeon standing next to a laboratory instrument.
FEBRUARY 1, 2022
Staff Accomplishment

Spurgeon Receives Affiliate Appointment with University of Washington

Steven Spurgeon, a materials scientist and microscopy researcher at PNNL, has accepted an affiliate associate professorship at the University of Washington Department of Physics.
( Read More )
DOE Secretary's Honor Awards
JANUARY 27, 2022
Staff Accomplishment

PNNL Staff Members Receive Highest DOE Recognition

The annual Secretary’s Honor Awards recognize federal and contractor employees who have shown exceptional creativity, drive, and commitment to projects that have lasting impact on the Department of Energy's mission.
( Read More )
CliffordLackey_Thumb
OCTOBER 27, 2021
Feature

Not so Basic: Advances in pH and Phosphate Monitoring Enhance Safety in Nuclear Fuel Recycling

Two PNNL interns are behind recent innovation in real-time testing and continuous monitoring for pH and the concentration of chemicals of interest in chemical solutions; outcomes have applicability not only to nuclear, but to industries.
( Read More )
Composite image of eight diverse postdoctoral researchers from the shoulders up featuring different colors over each individual
SEPTEMBER 20, 2021
Staff Accomplishment

The Power of Postdocs

PNNL recognizes some of the outstanding postdoctoral researchers that move science forward during National Postdoc Appreciation Week.
( Read More )
SNFHighlight_thumbnail
AUGUST 30, 2021
Feature

Steering the Future of Spent Nuclear Fuel

PNNL report reflects 10 years of dedication to effectively plan for the safe and uneventful removal of radioactive waste from nuclear power plants.
( Read More )
Jennifer Meza, intern
AUGUST 23, 2021
Director's Column

PNNL Interns' Research Runs the Scientific Gamut

Tomorrow’s scientific leaders gain real-world experience contributing to PNNL’s research and development.
( Read More )
WMSPapers
AUGUST 5, 2021
Staff Accomplishment

PNNL Papers Lauded as “Noteworthy,” “Superior”

2021 marks the largest cohort of PNNL authors and co-authors to be recognized at annual Waste Management Symposia for environmental management research.
( Read More )
EED_1421_ILLUS_JEOLmicroscopy_v2
JULY 29, 2021
Feature

Electron Microscopy in the Age of Automation

PNNL’s data-infused approach to electron microscopes’ use in scientific experimentation will help researchers and industry interpret large data streams and drive down costs.
( Read More )
Amy Qiao
JULY 1, 2021
Staff Accomplishment

Qiao Lending Expertise in Science of Light

PNNL senior electrical engineer, Amy Qiao, tapped to serve IEEE Photonics Society Emerging Technologies Task Force.
( Read More )
PNNL chemical engineer Amanda Casella
MAY 25, 2021
Director's Column

PNNL Nuclear Technologies Fueling Carbon-Free Energy Future

Researchers delivering new solutions to speed development and deployment of advanced reactor concepts.
( Read More )
This illustrated map of Washington state shows the diversity of energy sources, including nuclear, hydro, solar, wind, and coal, plus energy storage
MAY 25, 2021
News Release

Small Modular Reactors Competitive in Washington’s Clean Energy Future

A new report finds small modular reactors could provide competitively priced electricity in Washington state's future electricity market.
( Read More )
Photo of bolt hole and peeling paint on decommissioned RPM shell
APRIL 6, 2021
Staff Accomplishment

Unexpected Art

PNNL's Brenda Wiesner creates one-of-a-kind artwork using peeling paint and rusty scraps from decommissioned RPM shells.
( Read More )
probe
MARCH 2, 2021
Feature

Real-Time Monitoring Tool Speeds Up Advanced Nuclear Reactor Development

Innovative technology combines continuous, remote, real-time testing and monitoring of byproduct gasses, paving the way for faster advanced reactor development and testing.
( Read More )
Patricia Paviet
FEBRUARY 25, 2021
Staff Accomplishment

Fuel Cycle Expert Leads DOE Molten Salt Reactor Effort

PNNL radiochemist and research manager Patricia Paviet named National Technical Director for the Molten Salt Reactor (MSR) Program by the U.S. Department of Energy’s Office of Nuclear Energy.
( Read More )
Image of barrel containers
FEBRUARY 10, 2021
Staff Accomplishment

NNSA Commends PNNL Team for Steadfast Support of Material Removal

In a December press release, the National Nuclear Security Administration (NNSA) announced the safe and secure removal of 50 sample containers of plutonium-239 and americium-241.
( Read More )
Nick Klymyshyn
JANUARY 27, 2021
Staff Accomplishment

Klymyshyn Earns Engineer of the Year for Columbia Basin

Klymyshyn was recognized as “Engineer of the Year” by the American Society of Mechanical Engineers, Columbia Basin Section for his technical, professional, and community contributions.
( Read More )
cement
DECEMBER 18, 2020
Feature

Ettringite Cements Its Potential

Ettringite, a mineral found in cement, can latch on to and detain the wily and worrisome radioactive contaminant, pertechnetate.
( Read More )
RamAccomplishment
DECEMBER 18, 2020
Staff Accomplishment

Devanathan Leads Pioneering Review at the Forefront of Multiscale Modeling

Interdisciplinary review blends advanced scientific understanding to help predict how materials behave in extreme operating conditions.
( Read More )
Close-up of chemical plant featured on cover of C&E News journal
NOVEMBER 25, 2020
Staff Accomplishment

C&E News Features PNNL Materials Science Capabilities

Magazine cover article—“Combating corrosion in the world’s nuclear reactors”—features PNNL research leaders Mark Nutt, Aaron Diaz, and Mychailo Toloczko.
( Read More )
Iron and technetium
NOVEMBER 17, 2020
Feature

Ironing Out Technetium Contamination

Researchers at Pacific Northwest National Laboratory (PNNL) are closer to understanding how iron may pave the way for sequestration of technetium-99 contaminants in the subsurface.
( Read More )
Spurgeon
NOVEMBER 24, 2020
Staff Accomplishment

Spurgeon Elected to Lead Microscopy Society of America Interest Group

PNNL’s Steven Spurgeon, a materials scientist, was recently elected leader of the Microscopy Society of America (MSA) aberration-corrected microscopy focused interest group.
( Read More )
Iron and technetium
NOVEMBER 17, 2020
Feature

Ironing Out Technetium Contamination

Researchers at Pacific Northwest National Laboratory (PNNL) are closer to understanding how iron may pave the way for sequestration of technetium-99 contaminants in the subsurface.
( Read More )
An illustration showing the concept of how a large electron microscope solves scientific mysteries.
OCTOBER 27, 2020
Feature

Enabling the Data-Driven Future of Microscopy

Infusing data science and artificial intelligence into electron microscopy could advance energy storage, quantum information science, and materials design.
( Read More )
CarolynPearceimage
OCTOBER 26, 2020
Feature

PNNL Gets X-Ray Vision

PNNL has three small-scale spectroscopy devices that are speeding up the testing and analysis of candidate novel materials used in energy storage research and environmental remediation.
( Read More )
collage of eight postdoctoral researcher and the PNNL logo
SEPTEMBER 22, 2020
Feature

Praises for Postdocs

PNNL recognizes researchers during National Postdoc Appreciation Week.
( Read More )
Vicky Freedman, a computational subsurface hydrologist, stands at a podium next to a big screen showing the title slide of her presentation
SEPTEMBER 8, 2020
Staff Accomplishment

Waste Management Symposia Picks PNNL “Superior Papers”

Five papers co-written by 23 PNNL researchers were named Superior Paper Award Winners by the Waste Management Symposia.
( Read More )
Scientist Steven Spurgeon sits at a desk with a keyboard and multiple monitors while he controls a huge microscope in the room.
SEPTEMBER 1, 2020
Feature

Exploring Oxidative Pathways in Nuclear Fuel

An international team used PNNL microscopy to answer questions about how uranium dioxide—used in nuclear power plants—might behave in long-term storage.
( Read More )
IDRAM
AUGUST 25, 2020
Feature

Extreme Chemistry of Nuclear Wastes

The PNNL-led IDREAM Energy Frontier Research Center is exploring complex chemical phenomena to enable innovations in radioactive waste processing.
( Read More )
Ram_Dave
AUGUST 18, 2020
Staff Accomplishment

American Chemical Society National Meeting Honors Two PNNL Scientists

PNNL materials scientist Ram Devanathan named Fellow and chemist Dave Heldebrant keynotes at the American Chemical Society (ACS) Fall 2020 meeting.
( Read More )
radioactively stable MOF noble gas capture
AUGUST 5, 2020
Feature

Trapping and Reusing Noble, Yet Volatile, Gases

A new radiation-resistant material for the efficient capture of noble gases xenon and krypton makes it safer and cheaper to recycle spent nuclear fuel.
( Read More )
Nuclear clues
AUGUST 3, 2020
Feature

Tracking the Neural Network’s Nuclear Clues

A 2011 earthquake and tsunami in Japan that knocked out a nuclear power plant helped inspire PNNL computational scientists looking for clues of future nuclear reactor mishaps by tracking radioactive iodine.
( Read More )
Devanathan
JULY 23, 2020
Staff Accomplishment

Handbook of Materials Modeling Edited by Ram Devanathan

International editing team provided 15-year update, with Devanathan focused on intersection of nuclear science, materials science, and multiscale modeling.
( Read More )
Shipping Container 9977 Package
JULY 8, 2020
Staff Accomplishment

PNNL Team Receives National Nuclear Security Administration Award

A strong interdisciplinary team with a high-performance track record recently received their third Award of Excellence in five years from the National Nuclear Security Administration (NNSA).
( Read More )
Lumetta
JUNE 23, 2020
Staff Accomplishment

Chemistry Paper makes Top 100 for High-Impact Journal

A chemistry paper on the used nuclear fuel recycling process, led by PNNL lab fellow Gregg Lumetta, ranked 18th in Scientific Reports for downloads in 2019
( Read More )
O'Hara and Grate
APRIL 29, 2020
Staff Accomplishment

‘Go-To’ Radioactivity Handbook Features Chapter by O’Hara and Grate

PNNL research scientists Jay Grate and Matthew O'Hara co-authored a chapter in the fourth edition of the Handbook of Radioactivity Analysis. 
( Read More )
Noble Metal
APRIL 16, 2020
Feature

Rad Revelations from Noble Metals

Nuclear Process Science Initiative researchers at PNNL gain insights into the formation and rupture of high-pressure gas bubbles in nuclear fuel.
( Read More )
PNNL researcher Dave Senor
APRIL 8, 2020
Staff Accomplishment

David Senor joins Texas A&M Nuclear Engineering Advisory Council

David Senor, PNNL researcher and tritium expert, has been named to the Texas A&M University Nuclear Engineering Advisory Council. This appointment follows Senor’s eight consecutive years of mentoring Texas A&M’s nuclear engineering senior
( Read More )
Scientists Sue Clark and Amanda Lines use a laser for nuclear chemistry research.
JANUARY 10, 2020
Feature

Clark Recognized for Nuclear Chemistry Research

The world’s largest scientific society honored Sue B. Clark, a PNNL and WSU chemist, for contributions toward resolving our legacy of radioactive waste, advancing nuclear safeguards, and developing landmark nuclear research capabilities.
( Read More )
Research was done in a hot cell, which is a special glassed-in area to protect researchers from radioactivity. Inside the hot cell has a yellow glow. The person outside controls mechanical arms to do the work in the hot cell.
DECEMBER 4, 2019
Feature

A More Painless Extraction

PNNL and Argonne researchers developed and tested a chemical process that successfully captures radioactive byproducts from used nuclear fuel so they could be sent to advanced reactors for destruction while also producing electrical power.
( Read More )
Patricia Paviet
AUGUST 2, 2019
Staff Accomplishment

Paviet Receives ANS Award, Elected to ANS Board

The ANS award will be presented at the Global Top Fuel 2019 Conference this September in Seattle, and comes amid several recent recognitions for Paviet.
( Read More )
Two female scientists and one male scientist stand by a banner listing the sponsors for the NexTEM workshop.
SEPTEMBER 13, 2019
Feature

Charting the Frontier of Electron Microscopy

A gathering of international experts in Portland, Oregon, explored the future of electron microscopy and surfaced potential solutions in areas including new instrument designs, high-speed detectors, and data analytics capabilities.
( Read More )
Purple and gold atoms show the structure of uranium dioxide
AUGUST 12, 2019
Feature

A Window into the Hidden Nuclear World

A multi-institute team develops an imaging method that reveals how uranium dioxide (UO2) reacts with air. This could improve nuclear fuel development and opens a new domain for imaging the group of radioactive elements known as actinides.
( Read More )
Molecular structure illustrated with blue and yellow circles, connected with red lines.
JUNE 26, 2019
Feature

Tough Materials for Tough Environments

Researchers apply numerical simulations to understand more about a sturdy material and how its basic structure responds to and resists radiation. The outcomes could help guide development of the resilient materials of the future.
( Read More )
Scenic view of a river with a big tree-covered hill in the background
APRIL 24, 2019
Feature

Power Reactor Project is Model for Accelerated Site Review

The U.S. Nuclear Regulatory Commission, U.S. Army Corps of Engineers, and PNNL partnered to complete—in record time—an environmental impact statement for the nation’s first small modular nuclear reactor, to be sited at Clinch River, Tenn.
( Read More )
Scientific illustration of a laser beam
APRIL 23, 2019
Feature

Researchers Study Radioactive Material Behavior—Without the Radioactivity

It’s hot in there! PNNL researchers take a close, but nonradioactive, look at metal particle formation in a nuclear fuel surrogate material. What they found will help fill knowledge gaps and could lead to better nuclear fuel designs.
( Read More )
JEOL GrandARM RPL 2018
MARCH 7, 2019
Feature

New Microscope Reveals Xenon in Fuel Cladding

Xenon search successful! A new scanning transmission electron microscope helps PNNL researchers find xenon deep in a section of nuclear fuel cladding.
( Read More )
Scientific closeup of plutonium. Multicolored.
JANUARY 31, 2019
Feature

Plutonium Experiment Opens New Research Possibilities

Researchers used novel methods to safely create and analyze plutonium samples. The approaches could prove influential in future studies of the radioactive material, benefitting research in legacy, national security and nuclear fuels.
( Read More )
Edgar Buck and Steven Spurgeon, using a large electron microsope to do science research.
DECEMBER 17, 2018
Feature

Radiological Microscopy Suite Enables Innovative Nuclear Science

( Read More )
seawater-yields-first-grams-of-yellowcake
JUNE 13, 2018
News Release

Seawater Yields First Grams of Yellowcake

For the first time, researchers have created a gram of yellowcake — a powdered form of uranium used to produce fuel for nuclear power production — using modified acrylic fibers to extract it from seawater.
( Read More )
huestis_idream-thumb
JULY 30, 2018
Staff Accomplishment

Patricia Huestis Explains Radiation's Roles in Energy Research

( Read More )
pnnl-staff-are-among-the-titans
JUNE 29, 2018
Staff Accomplishment

PNNL Staff Are Among the 'Titans of Nuclear'

( Read More )

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