Alex Zirakparvar R&D Associate - Analytical Chemist Contact ZIRAKPARVANA@ORNL.GOV All Publications Preliminary Insights Into the Feasibility of Determining the Purification Date of Enriched Uranium by Direct Measurement of the 230Th/234U Ratio Using an All-Faraday Detector Configuration on the Neoma MC-ICP-MS Isotopic analysis of Nd nanoparticles using single particle MC-ICP-MS: A comparative study with single particle-ICP-TOF-MS Particle Signal Considerations for Isotope Ratio Analysis with Single Particle Multi-Collector Inductively Coupled Plasma Mass Spectrometry Exploration of metallic interferences pertinent to nuclear safeguards related uranium isotope ratio measurement on the Neoma MC-ICP-MS platform without the MS/MS option Electrothermal vaporization as a new method for pre-inspection check samples A preliminary investigation into the feasibility of laser ablation U–Pb isotope ratio measurement via all-faraday cup detection with 10 11 - and 10 13 -Ω amplifiers on the Neoma multicollector-inductively coupled plasma-mass spectrometer Uranium Single Particle Analysis for Simultaneous Fluorine and Uranium Isotopic Determinations via Laser-Induced Breakdown Spectroscopy/Laser Ablation–Multicollector–Inductively Coupled Plasma–Mass Spectrometry Mapping of uranium particles on J-type swipes with microextraction-ICP-MS Advancing Elemental and Isotopic Analysis of Uranium Mineral Inclusions: Rapid Screening via Laser-Induced Breakdown Spectroscopy and High-Resolution Laser Ablation-ICP-MS Mapping Microextraction–TQ–ICP–MS for the Direct Analysis of U and Pu from Cotton Swipes Faraday detector uranium isotope ratio measurement: Insights from solution- and laser ablation-based sampling methodologies on the Neoma MC-ICP-MS Exploration of LIBS as a novel and rapid elemental mapping technique of nuclear fuels in the form of surrogate TRISO particle... Analytical Report for Nuclear Regulatory Commission High Burnup Fuel Specimens The need for speed – Burnup determination of spent nuclear fuel Industrial garnet as an unconventional heavy rare earth element resource: Preliminary insights from a literature survey of worldwide garnet trace element concentrations Investigation of the 176Yb Interference Correction during Determination of the 176Hf/177Hf Ratio by Laser Ablation and Solution Analysis on the Neoma MC-ICP-MS Determination of fluorine distribution in shark teeth by laser-induced breakdown spectroscopy Direct isotopic analysis of solid uranium particulates on cotton swipes by microextraction-ICP-MS Nuclide Inventory Validation: Radiochemical Assay Data Quality and Modeling Challenges in Benchmark Models Development... Direct analysis of cotton swipes for plutonium isotope determination by microextraction-ICP-MS Insights into secondary ion formation during dynamic SIMS analysis: Evidence from sputtering of laboratory synthesized uranium compounds with a high-energy O− primary beam on a NanoSIMS 50L Direct Uranium Isotopic Analysis of Swipe Surfaces by Microextraction-ICP-MS Rapid and automated separation of uranium ore concentrates for trace element analysis by inductively coupled plasma – optical emission spectroscopy/triple quadrupole mass spectrometry An approach to separating Pu, U, and Ti from high-purity graphite for isotopic analysis by MC-ICP-MS Structural, Spectroscopic, and Kinetic Insight into the Heating Rate Dependence of Studtite and Metastudtite Dehydration Pagination Current page 1 Page 2 Next page ›â¶Äº Last page Last » Key Links Organizations Physical Sciences Directorate Chemical Sciences Division Nuclear Analytical Chemistry Section Chemical and Isotopic Mass Spectrometry Group
News Simultaneous detection of uranium isotopes, fluorine advances nuclear nonproliferation monitoring