​​​Biography

2018-Present      Research Scientist, Idaho National Laboratory
2017-Present      Russell L. Heath Distinguished Postdoctoral Research Associate, Idaho National Laboratory
2015-2017           Postdoctoral Researcher, The University of Notre Da​me Radiation Laboratory and California State University Long Beach
2011-2015           Ph.D., The University of Manchester
2007-2011           M.Chem., Chemistry with Industrial Experience, The University of Manchester

Research

My scientific interests lie in the radiation and radiochemistry of nuclear fuel cycle related challenges, with particular emphasis on the effects of radiation on the components of used nuclear fuel reprocessing solvent systems and molten salt media. I focus on understanding the fundamental mechanistic processes occurring in these systems in the presence of an ionizing radiation field, from ultra-fast to steady-state timescales. For example, radiation-induced redox chemistry of the actinides, and the reaction-kinetics of radiolytic transients with novel reprocessing extractants.

Publications (h-index 7)

  1. Toigawa, T.; Peterman, D.R.; Meeker, D.S.; Grimes, T.S.; Zalupski, P.R.; Mezyk, S.P.; Cook, A.R.; Yamashita, S.; Kumagai, Y.; Matsumura, T.; Horne, G.P., Radiation-Induced Effects on the Extraction Properties of Hexa-n-octylnitrilo-triacetamide (HONTA) Complexes of Americium and Europium. Physical Chemistry Chemical Physics, 2021, https://doi.org/10.1039/D0CP05720G.

  2. Horne, G. P.; Zarzana, C. A.; Rae, C.; Cook, A. R.; Mezyk, S. P.; Zalupski, P. R.; Wilden, A.; Mincher, B. J., Does Addition of 1-Octanol as a Phase Modifier Provide Radical Scavenging Radioprotection for N,N,N’,N’-tetraoctyldiglycolamide (TODGA)? Physical Chemistry Chemical Physics, 2020, 22, 24978.

  3. Horne, G.P.; Zalupski, P.Z.; Daubaras, D.L.; Rae, C.; Mezyk, S.P.; Mincher, B.J., Radiolytic Degradation of Formic Acid and Formate in Aqueous Solution: Modeling the Final Stages of Organic Mineralization under Advanced Oxidation Process Conditions, Data in Brief, 2020, 32, 06271.

  4. Horne, G.P.; Zalupski, P.Z.; Daubaras, D.L.; Rae, C.; Mezyk, S.P.; Mincher, B.J., Radiolytic Degradation of Formic Acid and Formate in Aqueous Solution: Modeling the Final Stages of Organic Mineralization under Advanced Oxidation Process Conditions, Water Research, 2020, 186, 116314.

  5. Parker-Quaife, E.H.; Verst, C.; Heathman, C.R.; Zalupski, P.Z.; Horne, G.P., Radiation-Induced Molecular Hydrogen Gas Generation in the Presence of Aluminum Alloy 1100. Radiation Physics and Chemistry, 2020, 177, 109117.

  6. Phillips, W.C.; Gakhar, R.; Horne, G.P.; Layne, B.; Iwamatsu, K.; Ramos-Ballesteros, A.; Shaltry, M.R.; LaVerne, J.A.; Pimblott, S.M.; Wishart, J.F., Design and performance of high-temperature furnace and cell holder for in situ spectroscopic, electrochemical, and radiolytic investigations of molten salts. AIP Review of Scientific Instruments, 2020, 91, 083105-1.​

  7. Horne, G.P.; Zarzana, C.A.; Daubaras, D.L.; Pilgrim, C.D.; Rae, C.; Faulkner, R.F.; Kiddle, J.J.; Mezyk, S.P., Probing activated radioprotection of simple hydrophilic phosphonic acids in aqueous solution. Radiation Physics and Chemistry, 2020, 170, 108636.​

  8. Horne, G.P.; Mezyk, S.P.; Mincher, B.J.; Zarzana, C.A.; Rae, C.; Tillotson, R.D.; Schmitt, N.C.; Ball, R.D.; Ceder, J.; Charbonnel, M.-C.; Guilbaud, P.; Saint-Louis, G.; Berthon, L., DEHBA (di-2-ethylhexylbutyramide) gamma radiolysis under spent nuclear fuel solvent extraction process conditions. Radiation Physics and Chemistry, 2020, 170, 108608.

  9. Horne, G.P.; Wilden, A.; Mezyk, S.P.; Twight, L.; Hupert, M.; Stark, A.; Verboom, W.; Mincher, B.J.; Modolo, G., Gamma Radiolysis of Hydrophilic Diglycolamide Ligands in Concentrated Aqueous Nitrate Solution. Dalton Transactions, 2019, 48, 17005.

  10. Horne, G.P.; Zarzana, C.A.; Grimes, T.S.; Rae, C.; Ceder, J.; Mezyk, S.P.; Mincher, B.J.; Charbonnel, M.-C.; Guilbaud, P.; Saint-Louis, G.; Berthon, L., Effect of Chemical Environment on the Radiation Chemistry of N,N-di-(2-ethylhexyl)butyramide (DEHBA) and Plutonium Retention. Dalton Transactions2019, 48, 14450.