Brandy N. Gartman YOU? Author Swipe

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Lithium isotope analysis on the Neoma MS/MS MC-ICP-MS Open

Sean Scott, G. W. Turner, Brandy N. Gartman, Sonia Alcantar Anguiano, Kali M. Melby , et al. · 2025

Accurate and precise lithium isotopic composition measurements are achieved on the Neoma MS/MS after careful tuning of the prefilter lenses to allow both Li ion beams to pass through unimpeded.

Impact of Radiolysis on Iodine Speciation in a Variety of Matrices Open

Brandy N. Gartman, Shirmir D. Branch, Sandra Pratt, Andrew M. Ritzmann, Anjelica Bautista , et al. · 2023

Spectroscopic features of dissolved iodine in pristine and gamma-irradiated nitric acid solutions Open

Trent R. Graham, Brandy N. Gartman, Anjelica Bautista, Lindsay E.I. Irwin, Eden Shelby , et al. · 2023

Gravitational vortex disruption in mesofluidic separators Open

Leonard F. Pease, Brandy N. Gartman, Catrin A. Law, Carolyn A. Burns · 2023

Typically, bump array devices separate submicrometer particles where gravitational effects remain small. However, as particle size increases from a few micrometers to hundreds of micrometers, gravitational effects become important and sett…

Update of the Cesium-136 Cumulative Fission Yields at Multiple Neutron Energies Open

Nicolas Uhnak, Evan Warzecha, Morgan Haney, Bruce Pierson, L.R. Greenwood , et al. · 2023

Nuclear data is foundational to several fields, including nuclear forensics. Nuclear forensics investigations of fission events, relies heavily on the cumulative fission yields, however several highly useful fission products suffer from ve…

Detection of Fallout in Smoke from Forest Fires along the Pacific Coast: A Study of Actinide and Fission Product Transport Open

Brandy N. Gartman, Karen Noyes, Jane Estrada, Judah I. Friese, Norbert Gajos , et al. · 2022

Measurement of Iodine, Iodide, and Iodate in Hanford Tank Waste: Technology Transfer from PNNL to Hanford 222-S Laboratory Open

Chuck Z. Soderquist, Shirmir D. Branch, Brandy N. Gartman, Matthew Fountain, Susan Asmussen , et al. · 2021

This report summarizes the measurement of the inorganic chemical forms of iodine in Hanford tank waste. The Hanford tank wastes have roughly a part per million iodine. Part of the iodine is the long-lived beta emitter 129I, and the rest is…

Combined Technologies for In Situ Remediation of Tc-99 and U in Subsurface Sediments Open

Brandy N. Gartman, E. M. Arnold, James E. Szecsody, Christopher E. Bagwell, Christopher L. Brown , et al. · 2021

In this study, combinations of chemical remedies were tested in bench-scale batch experiments to evaluate a two-step reduction-sequestration approach to effectively stabilize high concentrations of inorganic contaminant mixtures. Bench tes…

Influences on Subsurface Plutonium and Americium Migration Open

Hilary P. Emerson, Carolyn I. Pearce, Calvin H. Delegard, Kirk J. Cantrell, Michelle M.V. Snyder , et al. · 2021

Plutonium (Pu) has been released to the environment worldwide, including approximately 1.85 × 1015 Bq (200 kg) of Pu from process waste solutions to unconfined soil structures at the Hanford Site in Washington State. The subsurface mobilit…

In situ reductive dissolution to remove Iodine-129 from aquifer sediments Open

Jim E. Szecsody, Hilary P. Emerson, Carolyn I. Pearce, Brandy N. Gartman, Charles T. Resch , et al. · 2020

Evaluation of the Change in Uranium Mobility in Sediments from the Hanford 300-FF-5 Stage B Polyphosphate Field Injection Open

James E. Szecsody, Hilary P. Emerson, Robert Mackley, Charles T. Resch, Brandy N. Gartman , et al. · 2020

The purpose of this study was to evaluate the change in uranium mobility in the periodically re-wetted zone (PRZ) and upper unconfined aquifer of the Hanford Site’s 300-FF-5 operable unit as a result of Stage B polyphosphate (PO₄

Correction to: International inter-comparison exercise on 153Sm Open

Mark Jackson, Chris Gilligan, A. V. Davies, R. Britton, J. I. Friese , et al. · 2019

Evaluation of In Situ and Ex Situ Remediation Technologies for Iodine-129: Final Bench Scale Results Open

James E. Szecsody, Guohui Wang, Carolyn I. Pearce, Amanda R. Lawter, Kirk J. Cantrell , et al. · 2019

At the U.S. Department of Energy’s (DOE’s) Hanford Site, located in southeastern Washington State, iodine-129 (I-129) was produced as a byproduct of nuclear fission in the site’s nine Pu production reactors. Currently, there are large dilu…

Evaluation of Remediation Technologies for Iodine-129: FY18 Bench Scale Results Open

James E. Szecsody, Carolyn I. Pearce, Kirk J. Cantrell, Nikolla Qafoku, Guohui Wang , et al. · 2018

At the U.S. Department of Energy’s (DOE’s) Hanford Site, located in southeastern Washington State, ¹²⁹I was produced as a byproduct of nuclear fission in the site’s nine Pu production reactors. Currently, there are large dilute …

Evaluation of Perched Water Post-Extraction Remedy Technologies: Interim Status Report Open

Sarah A. Saslow, Amanda R. Lawter, Brandy N. Gartman, Z. Fred Zhang, Michelle M.V. Snyder , et al. · 2018

In the 200-DV-1 Operable Unit at Hanford, a perched water zone is located in a fine-grained unit a few meters above the water table within the B, BX, and BY Tank Farms area. The perched water contains elevated concentrations of uranium (U)…

Geochemical, Microbial, and Physical Characterization of 200-DV-1 Operable Unit B-Complex Cores from Boreholes C9552, C9487, and C9488 on the Hanford Site Central Plateau Open

James E. Szecsody, Michael J. Truex, Brady D. Lee, Chris Strickland, James Moran , et al. · 2018

The 200-DV-1 Operable Unit (OU) is in the process of characterizing the vadose zone to support a remedial investigation and feasibility study. Contaminants disposed of at the land surface must migrate through the vadose zone before enterin…

Deep Vadose Zone Treatability Test of Uranium Reactive Gas Sequestration for the Hanford Central Plateau: Final Report Open

Michael J. Truex, James E. Szecsody, Chris Strickland, David A. St John, Michelle M.V. Snyder , et al. · 2018

The uranium reactive gas sequestration (URGS) test described herein was conducted as an element of the Deep Vadose Zone Treatability Test Plan for the Hanford Central Plateau. The URGS technology was tested as a potential remedy to decreas…

International inter-comparison exercise on $${}^{153}\hbox {Sm}$$ Open

Mark Jackson, Chris Gilligan, A. V. Davies, R. Britton, J. I. Friese , et al. · 2018

Contaminant Attenuation and Transport Characterization of 200-UP-1 Operable Unit Sediment Samples Open

Brady D. Lee, James E. Szecsody, Nikolla Qafoku, Erin M. McElroy, Steven R. Baum , et al. · 2017

Contaminants disposed of at the land surface migrate through the vadose zone, forming plumes in groundwater. Processes that occur in the groundwater can attenuate contaminant concentrations during transport through the aquifer. For this re…

Contaminant Attenuation and Transport Characterization of 200-DV-1 Operable Unit Sediment Samples Open

Michael J. Truex, James E. Szecsody, Nikolla Qafoku, Chris Strickland, James Moran , et al. · 2017

A laboratory study was conducted to quantify contaminant attenuation processes and associated contaminant transport parameters that are needed to evaluate transport of contaminants through the vadose zone to the groundwater. The laboratory…

Contaminant Attenuation and Transport Characterization of 200-DV-1 Operable Unit Sediment Samples Open

Michael J. Truex, James E. Szecsody, Nikolla Qafoku, Chris Strickland, James Moran , et al. · 2017

Efficacy of acetate-amended biostimulation for uranium sequestration: Combined analysis of sediment/groundwater geochemistry and bacterial community structure Open

Jie Xu, Harish Veeramani, Nikolla Qafoku, Gargi Singh, Maria V. Riquelme , et al. · 2016

Uranium fate in Hanford sediment altered by simulated acid waste solutions Open

Brandy N. Gartman, Nikolla Qafoku, James E. Szecsody, Ravi Kukkadapu, Zhe-Ming Wang , et al. · 2015