Sara Pozzi’s Post

Neutron Slowing Down Experiments In the early 1930s, Enrico Fermi, an Italian physicist at the University of Rome, embarked on groundbreaking studies of neutron bombardment. He believed that neutrons, being neutral, could penetrate atomic nuclei more effectively than charged particles and thus generate nuclear reactions. Fermi began bombarding various elements, including uranium, using a simple neutron source made from radon and beryllium. When Fermi bombarded uranium, he noticed some perplexing results—multiple radioactive products were formed, not fitting existing theories. An accidental yet very consequential discovery happened when he used paraffin wax, rich in hydrogen, which slowed down the neutrons, enhancing the nuclear reactions! This idea of neutron moderation would become a key principle in nuclear reactor design, including Fermi's later work on the first controlled use of nuclear fission at the University of Chicago. Fermi's findings, although not fully recognized initially, laid the groundwork for understanding nuclear reactions. It wasn't until 1938, when Lise Meitner and Otto Frisch identified the reaction as nuclear fission, that the significance of Fermi's work was realized. They showed that bombarding uranium could split its nucleus, releasing immense energy, validating Einstein's E=mc². #engineering #science #research #security #graduateschool #graduatestudent  #mtvconsortium #phd #phdstudent #neutron #detection #imaging #safeguards #nonproliferation #history #fission #physics Nuclear Engineering and Radiological Sciences—University of Michigan University of Michigan College of Engineering

Fission neutron spectrum measurements are required to improve existing nuclear data. These data are crucial to validate the accuracy of predictions made by computer codes that model various nuclear phenomena. We are addressing gaps in nuclear data by designing, performing, and analyzing new experiments to measure fission emissions from nuclides of interest, with an emphasis on Pu-240. These experiments will use organic scintillators, whose response must be fully understood. The figure shows a simulated neutron detector response matrix for an organic scintillator by our collaborators at Los Alamos National Laboratory. For more details, see their paper here: https://lnkd.in/dwqueJ64 #engineering #science #research #security #graduateschool #graduatestudent  #mtvconsortium #phd #phdstudent #plutonium #organicscintillator #lanl University of Michigan College of Engineering Nuclear Engineering and Radiological Sciences—University of Michigan National Nuclear Security Administration (NNSA)

The nuclear physics program in the Energy Department’s Science Office wants to use artificial intelligence to help control its advanced accelerators, according to a new solicitation posted to the agency’s website. The request for applications comes as the Energy Department continues to use artificial intelligence to advance its research endeavors, which includes deploying the technology at some of the world’s fastest supercomputers. The goal, overall, is to help reduce the time needed to conduct experiments. https://lnkd.in/eiCYSxh2

And yet good news from the scientific front! 👨⚕️ ⚡ My third grade supervised student Vladislav Susakin (major in Nuclear Engineering and Technologies) became a prize-winner of the VII International (XX Regional) Scientific conference Technogenic Systems and Environmental Risk, organized in cooperation between the Obninsk Institute for Nuclear Power Engineering (MEPhI branch), Institute of Nuclear Physics and Technology in partnership with the Public Council of the CNS Basic Organization for Environmental Education. In the section №1 Nuclear and Thermal Power Engineering, he presented our last findings in multi nodal modelling of the VVER-1200 nuclear reactor for the load-following mode of operation. Moreover, we suggested the novel model of the group 12 of CPS CR using the piecewise approximation, which can influence all the nodes sequentially while insertion or withdrawal. #nuclearengineering #supervision #rosatom #MEPhI #nucleartechnology #education #conference #reactor

Our first Application Seminar 'Multiphase in Nuclear Industry' took place on October 14, 2024. 📚 The seminar featured two impactful conferences: 1️ Professor Jean-Philippe Matas (University Lyon 1 - LMFA) Topic: Two-Phase Flows: Examples of Sprays and Plunging Jets 👉 A deep dive into fluid dynamics and spray behavior with real-world applications. 2️ Bertrand Stepnik (R&D Director from Cerca Framatome) Topic: REP Atomization Process for UMo Particle Synthesis: Application to Research Reactors 👉 An exploration of innovative nuclear research solutions driven by industrial R&D. 💡 The sessions highlighted the importance of collaboration between academic research centers and industrial R&D hubs in addressing complex engineering challenges and also the French industry's need for qualified engineers and Doctors. Thanks to the speakers for sharing their expertise and providing invaluable insights to our students! Framatome École des Mines de Saint-Étienne #EMJM #ErasmusMundus #MultiphaseSystems #SustainableEngineering #FluidDynamics #IndustrialR&D #AcademicResearch #TwoPhaseFlows #UMoParticles #Engineering #Innovation #Collaboration #FutureProblemSolvers #universiteLyon1 #LMFA #PolitecnicodiTorino #TUM #Multiphase #Applicationseminar #DISAT #SPIN #ingchimica_polito

The nuclear physics program in the Energy Department’s Science Office wants to use artificial intelligence to help control its advanced accelerators, according to a new solicitation posted to the agency’s website. The request for applications comes as the Energy Department continues to use artificial intelligence to advance its research endeavors, which includes deploying the technology at some of the world’s fastest supercomputers. The goal, overall, is to help reduce the time needed to conduct experiments. https://hubs.li/Q02W9pDr0

The nuclear physics program in the Energy Department’s Science Office wants to use artificial intelligence to help control its advanced accelerators, according to a new solicitation posted to the agency’s website. The request for applications comes as the Energy Department continues to use artificial intelligence to advance its research endeavors, which includes deploying the technology at some of the world’s fastest supercomputers. The goal, overall, is to help reduce the time needed to conduct experiments. https://hubs.li/Q02WhG4r0

Best invest in Building and talking about Fusion power, space, maritime propulsion systems and industry as data centres are. Great Headline, Guardian on Nuclear fission. https://lnkd.in/g8sMZtpR People talk about Nuclear (meaning Fission) and fail to discuss fusion. https://lnkd.in/ge_aeX7M The nuclear fission industry is ignorant of what's happening around it. It must pull its collective uranium heads out of the sand and prepare to enter the commercially growing fusion energy industry. Fission is moving towards obsolescence at an ever-increasing pace, as it is "out of step, out of time, out of place, and soon to be out of Fuel" and merely temporary. https://lnkd.in/gbd_mZqk By 2028, Helion is expected to start producing electricity from its first fusion commercial power plant, which will provide electricity to Microsoft. The plant will produce at least 50 MWe after an initial ramp-up period. https://lnkd.in/gY9J3MQY Now, see what is happening in the world of the fusion industry. https://lnkd.in/g9hMBD7a As fission trebles, fuel shortage is increasingly real, https://lnkd.in/gze5rwpr

The global increase in energy demand is accelerating the shift towards nuclear energy in our country as well. Industries such as nuclear energy and aviation require innovative materials with superior mechanical properties that can provide protection against gamma and neutron radiation. In my research, I developed two new gadolinium and tungsten-reinforced aluminum-based metal composites using the mechanical alloying method. The effects of the volumetric ratios of tungsten (W) and gadolinium (Gd) particles and the applied heat treatment on the microstructures of Al-Gd2O3 were examined. Material characterization was performed through comprehensive mechanical and thermal analyses. We have demonstrated that these aluminum matrix composites are promising materials suitable for industrial use in radiation shielding. I am pleased to announce that I presented these findings in two papers at the 16th International Ejons Science Congress. Finally, I would like to thank Doc. Dr. Celal Kursun for his support. #NuclearEnergy #MaterialScience #RadiationShielding #Innovation #ScienceCongress #MechanicalAlloying #AviationIndustry #AcademicPublishing

The 24th International Nuclear Graphite Specialists Meeting (INGSM-24), will be held Sept. 8-13, 2024, in Berkeley, California. Researchers, industry experts and early career scientists and engineers are invited to join in discussion about ongoing research, challenges, and future directions for the use of graphite and related materials, such as carbon-carbon composites, matrix graphite in nuclear reactors. The meeting will include panel discussions, oral presentations, and poster presentations, covering contributions including modeling, experimental and theoretical studies. We invite abstracts for oral and poster presentations.   Topical Areas: 1. Irradiation damage, in-pile experiments 2. Oxidation 3. Graphite waste, and graphite assembly and component disassembly and decommissioning 4. Use of graphite in molten salt 5. Properties: thermo-physical, thermo-chemical, and mechanical 6. Microstructure and characterization 7. Standards, licensing, graphite qualification 8. Physisorption and chemisorption of tritium and other gases in graphite 9. Innovations and experience in manufacturing and purification, component and assembly fabrication and installation, and graphite supply chain 10. Functional performance requirements for graphite components Thank you for submitting your abstract by Friday, May 17th, 2024. https://lnkd.in/e6PnwsD6 #carbon #graphene #composites #materials