TETI team publishes paper on quantum materials in nuclear fuels

I am pleased to share that our review paper on "Total Ionizing Dose in Nano-Scaled CMOS Technologies" is now available in early access in IEEE Transactions on Nuclear Science. This work reviews many years of research into TID effects in CMOS transistors, highlighting how the continuous scaling down of technologies has evolved these effects. The reduction in gate oxide thickness has progressively improved transistor tolerance to TID. However, phenomena related to defect accumulation in other surrounding oxides—such as spacers and STI oxide—have become more prominent and often dominate the radiation response of nano-scaled devices. Notably, both planar MOSFETs and FinFETs exhibit a sensitive region near the upper part of the STI, known as the STI corner. As technology scales down, the complexity of TID effects increases significantly. I hope this paper will be useful to researchers and students in the radiation effects community. More information can be found in the paper here: https://lnkd.in/eDzY5veb I warmly thank my co-authors, Dr. Federico Faccio and Dr. Giulio Borghello from CERN, Switzerland, for their engaging discussions and valuable contributions that helped clarify many aspects of this complex topic. #TID #CMOS #reliability #radiation #radiationeffects #scalingdown #technologies #finfet #mosfet

I am pleased to share my recent publication in the European Journal of Engineering and Technology insights. This work explore the development of eco-friendly alternatives to conventional lead-based shielding materials by investigating the gamma radiation attenuation properties of dysprosium oxide (Dy2O3) doped magnesium sulfoborate glass systems. Our findings demonstrate the potential of Dy-doped glass systems as sustainable shielding materials for medical, industrial, and nuclear applications. I sincerely appreciate the guidance and mentorship of my advisor, Prof. Idris Ahmad, through out this research journey . Find the link to the paper: https://lnkd.in/dKBgqakY #RadiationPhysics #NuclearEngineering #MedicalPhysics #RadiationShielding #GlassScience

The search for dark matter and other elusive cosmic relics receives a significant boost from new research demonstrating a pathway to dramatically enhance detection rates using the collective behaviour of atomic nuclei. Marios Galanis, from the Perimeter Institute for Theoretical Physics, Onur Hosten of the Institute of Science and Technology Austria (ISTA), and Asimina Arvanitaki, also at the Perimeter Institute, alongside Savas Dimopoulos from the Leinweber Institute for Theoretical Physics at Stanford, present a protocol that achieves an unprecedented level of signal amplification. Their work leverages a process akin to superradiance, where the combined effect of numerous nuclear spins dramatically increases the interaction with weakly interacting particles, potentially revealing the existence of dark matter candidates like axions and dark photons. https://lnkd.in/eeV5Y5zy

The MARATHON experiment has achieved the most precise measurement to date of the neutron-to-proton structure function ratio, providing new insights into the momentum distribution of quarks within nucleons. Utilizing advanced techniques and rare tritium targets, the experiment also delivered the first measurement of the EMC effect in tritium and helium-3 mirror nuclei. These results are expected to refine models of nucleon structure and quantum chromodynamics, offering significant implications for nuclear and particle physics. Future investigations at Jefferson Lab aim to further advance understanding of nucleon dynamics and subatomic interactions.

Excited to share our latest research on diamond-based quantum sensors and their role in advancing NMR spectroscopy at the microscale. 🔍 In many real-world samples, especially solids, it's been tough to extract clean nuclear magnetic resonance (NMR) signals because of the complex interactions between nuclei. Our new approach overcomes this by using a combination of radio frequency (RF) and microwave (MW) control, synchronized precisely to "quiet" those interactions and reveal spectroscopic data. The method is designed for deployment on nitrogen-vacancy (NV) centers in diamond 💎 and to operate at high magnetic fields, where enhanced nuclear polarization naturally boosts signal strength. This technique allows for more accurate and high-resolution analysis of solid-materials, something that impacts material science. Thanks to my amazing co-authors Carlos Munuera Javaloy and Ander Tobalina who made this work possible! https://lnkd.in/dSUdeaA3

Materials scientists have uncovered how diamond — the material used to encase fuel for fusion experiments at the National Ignition Facility (NIF) in Lawrence Livermore National Laboratory — can develop tiny structural flaws that may limit fusion performance. At the NIF, powerful lasers compress diamond capsules filled with deuterium and tritium to the extreme pressures needed for nuclear fusion. This process must be perfectly symmetrical to achieve maximum energy output. By using a high-power pulsed laser to simulate these extreme conditions, researchers found that diamonds can form a series of defects, ranging from subtle crystal distortions to narrow zones of complete disorder, or amorphization. These imperfections can disrupt the implosion symmetry, which in turn can reduce energy yield or even prevent ignition. The findings can help guide improved capsule designs and models to achieve more uniform implosions, and thus maximize the energy output of fusion experiments. The work brings researchers a step closer to harnessing fusion as a practical energy source. The work, published in Matter, was led by Boya Li and Marc Meyers. Full study: https://lnkd.in/gpqY8dhG UC San Diego Program in Materials Science and Engineering

On this day in science Ernest Rutherford was born A consummate experimentalist, Rutherford was responsible for a remarkable series of discoveries in the fields of radioactivity and nuclear physics. He discovered alpha and beta rays, set forth the laws of radioactive decay, and identified alpha particles as helium nuclei. Most important, he postulated the nuclear structure of the atom: experiments done in Rutherford’s laboratory showed that when alpha particles are fired into gas atoms, a few are violently deflected, which implies a dense, positively charged central region containing most of the atomic mass. #onthisday #chemistry #science #scienceandtechnology #sciencecommunication #infographic via Compound Interest | Chemistry infographics

Soon after winning the Nobel Prize in Chemistry in 1908 for his investigations into the disintegration of the elements and the chemistry of radioactive substances, Ernest Rutherford penned the entry about radioactivity for the soon-to-be-published Encyclopaedia Britannica (its 11th edition). Considered to be one of the best experimental physicists ever to have lived, Rutherford discovered alpha and beta radiation, postulated the concept of the nucleus and founded the field of nuclear physics. Learn more about his life and work: https://bit.ly/2LCdvFl

📢 📢 📢  Sub-THz Characterization of Technical Surfaces for Particle Accelerator Vacuum Chambers 🧑🔬: Andrea Passarelli*,Maria Rosaria Masullo,Zahra Mazaheri and Antonello Andreone 🏫:National Institute for Nuclear Physics-Naples Unit, Monte Sant’Angelo University Complex and University of Naples Federico II 👓:Coatings play a crucial role in the functionality of vacuum chambers in particle accelerators, serving a dual goal by efficiently facilitating pumping and mitigating electron cloud effects. However, their impact on the surface impedance of the chamber walls raises concerns, potentially affecting the machine performance and imposing limitations on achievable energies and currents. Therefore, an electromagnetic characterization is essential for a comprehensive study of accelerator structures, particularly in the context of the next-generation machines where the demand for extremely short particle bunches accentuates the importance of evaluating material responses in the very-high-frequency region. We present a technique for probing the sub-THz response of coating materials by measuring pulsed signals passing through a specifically designed waveguide, in which is placed a slab with the deposited material under test. The proposed methodology allows for a comprehensive exploration of the electromagnetic properties of the most used technical surfaces (substrate plus coatings) in accelerators under realistic conditions, providing valuable insights into their behavior in the sub-THz frequency range. The experimental data of three different Non-Evaporable Getter coating samples, prepared on a copper substrate at the CERN deposition facilities under different sputtering conditions, are discussed. The findings contribute to a deeper understanding of the complex interactions between coatings and accelerator structures, with the aim of optimizing performance and efficiency in the evolving landscape of particle acceleration technologies. The limitations and advantages of the technique are also reported. 👉:https://lnkd.in/gMJ_wg82

Scientists at Lawrence Livermore National Laboratory have solved a decades-old puzzle: why delta-plutonium contracts instead of expanding when heated. 🔬⚛ Using a first-principles free-energy model that incorporates dynamic magnetism, the team has finally explained this counterintuitive behavior—opening new possibilities for understanding complex metals and improving nuclear material stewardship. . Learn how this breakthrough changes our understanding of plutonium, why magnetic fluctuations are the missing piece, and how this model could apply to other advanced materials: https://lnkd.in/eNTAtBKR #Plutonium #DeltaPlutonium #ThermalContraction #MagneticFluctuations #FreeEnergyModel #NuclearMaterials #AdvancedMaterials #MaterialsScience #LawrenceLivermore #QuantumServerNetworks