Tootfinder

In a quiet corner of southern France, an international mega-project is forging ahead with its mission to demonstrate industrial-scale nuclear fusion. We got to take a look.
https://www.computing.co.uk/feature/2025/fusion-finish-line-inside-iter-giant-tok…

Fusion finish line is in sight: Inside ITER’s giant tokamak
In a quiet corner of southern France, an international mega-project is forging ahead with its mission to demonstrate industrial-scale nuclear fusion. Computing got to take ...

Seit den 1960ern kommt die #Kernfusion in 30 bis 40 Jahren. 🤪
#Google investiert in #Kernfusion und will künftig 200 Megawatt Strom vom Start-up CFS beziehen.
Doch die Technologie wird…

Google bets on fusion power as its greenhouse gas emissions grow
Google has agreed to purchase electricity from a nuclear fusion power plant, but the technology still has to prove that it’s commercially feasible. 

Feasibility study of a mission to Sedna -- Nuclear propulsion and advanced solar sailing concepts.
TL;DR: Solar sails could make the trip take some 7 years, while thermonuclear fusion could take 10 years. Whereas with current engines it would take 30 years.
https://arxiv.org/abs/2506.17732

Feasibility study of a mission to Sedna -- Nuclear propulsion and advanced solar sailing concepts
Exploring the outer reaches of the Solar System presents significant propulsion and mission design challenges. This study assesses the feasibility of a mission to Sedna using two advanced propulsion concepts: the Direct Fusion Drive (DFD) rocket engine, based on D-$^{3}$He thermonuclear fusion, and a solar sail utilizing thermal desorption of its coating for propulsion. Both are evaluated for a one-way Earth-to-Sedna mission; however, due to the different performances the DFD would enable orbit…

"'Holy grail' of limitless clean energy could be here by 2040"
#UK #UnitedKingdom #Energy

'Holy grail' of limitless clean energy could be here by 2040
Hopes are rising of providing near-limitless clean energy in just 15 years

Machine Learning Based Efficiency Calculator (MaLBEC) for Nuclear Fusion Diagnostics
Kimberley Lennon, Chantal Shand, Gemma Wilson, Robin Smith
https://arxiv.org/abs/2507.19425 …

Machine Learning Based Efficiency Calculator (MaLBEC) for Nuclear Fusion Diagnostics
Diagnostics are critical for commercial and research fusion machines, since measuring and understanding plasma features is important to sustaining fusion reactions. The neutron flux (and therefore fusion power) can be indirectly calculated using neutron activation analyses, where potentially large numbers of activation foils are placed in the neutron flux, and delayed gammas from key reactions are measured via gamma spectrometry. In gamma spectrometry, absolute efficiency forms part of the acti…

Ab Initio Study of $^7$Li with Coupled $^6$Li $n$ and $^6$He $p$ Mass Partitions
Jakub Herko (TRIUMF, Lawrence Livermore National Laboratory), Konstantinos Kravvaris (Lawrence Livermore National Laboratory), Petr Navr\'atil (TRIUMF, University of Victoria), Sofia Quaglioni (Lawrence Livermore National Laboratory), Guillaume Hupin (Universit\'e Paris-Saclay, CNRS/IN2P3, IJCLab), Mark A. Caprio (Department of Physics and Astronomy, University of Notre Dame)

Ab Initio Study of $^7$Li with Coupled $^6$Li + $n$ and $^6$He + $p$ Mass Partitions
Background: Lithium plays an important role in nuclear astrophysics, fusion energy generation, and nuclear technology. From a theoretical point of view, the nucleus $^7$Li presents a remarkable challenge, as its bound states and resonances can be understood as being formed by a $^4$He and $^3$H pair, or simultaneously, a single neutron/proton coupled to a $^6$Li/$^6$He core. In light of this complexity, a consistent description of $^7$Li bound-state and continuum properties in a unified model p…

Exploring the Capabilities of the Frontier Large Language Models for Nuclear Energy Research
Ahmed Almeldein, Mohammed Alnaggar, Rick Archibald, Tom Beck, Arpan Biswas, Rike Bostelmann, Wes Brewer, Chris Bryan, Christopher Calle, Cihangir Celik, Rajni Chahal, Jong Youl Choi, Arindam Chowdhury, Mark Cianciosa, Franklin Curtis, Gregory Davidson, Sebastian De Pascuale, Lisa Fassino, Ana Gainaru, Yashika Ghai, Luke Gibson, Qian Gong, Christopher Greulich, Scott Greenwood, Cory Hauck, Ehab …

Exploring the Capabilities of the Frontier Large Language Models for Nuclear Energy Research
The AI for Nuclear Energy workshop at Oak Ridge National Laboratory evaluated the potential of Large Language Models (LLMs) to accelerate fusion and fission research. Fourteen interdisciplinary teams explored diverse nuclear science challenges using ChatGPT, Gemini, Claude, and other AI models over a single day. Applications ranged from developing foundation models for fusion reactor control to automating Monte Carlo simulations, predicting material degradation, and designing experimental progr…

Molecular dynamics simulation of the effects of neutron irradiation on Caesium Lead Bromide
Zhongming Zhang, Samuel Murphy, Michael Aspinall
https://arxiv.org/abs/2506.00675

Molecular dynamics simulation of the effects of neutron irradiation on Caesium Lead Bromide
With the development of fast neutron reactors and nuclear fusion reactors, it is necessary to find new radiation-hardened high-flux core neutron detectors. The use of perovskite Caesium Lead Bromide (CsPbBr$_3$) for neutron radiation detection is a new research direction. However, at high temperatures, the effects of neutron radiation, especially the Primary Knock-out Atom (PKA) and Displacement Per Atom (DPA), and the defect distribution at the molecular level have not been reported. This stud…

Feasibility study of a mission to Sedna -- Nuclear propulsion and advanced solar sailing concepts
Elena Ancona, Roman Ya. Kezerashvili, Savino Longo
https://arxiv.org/abs/2506.17732

Feasibility study of a mission to Sedna -- Nuclear propulsion and advanced solar sailing concepts
Exploring the outer reaches of the Solar System presents significant propulsion and mission design challenges. This study assesses the feasibility of a mission to Sedna using two advanced propulsion concepts: the Direct Fusion Drive (DFD) rocket engine, based on D-$^{3}$He thermonuclear fusion, and a solar sail utilizing thermal desorption of its coating for propulsion. Both are evaluated for a one-way Earth-to-Sedna mission; however, due to the different performances the DFD would enable orbit…

Probing surface vibration of spherical nuclei in relativistic heavy-ion collisions
Kouichi Hagino, Masakiyo Kitazawa
https://arxiv.org/abs/2508.05125 https://

Probing surface vibration of spherical nuclei in relativistic heavy-ion collisions
There has been increasing interest in recent years in using relativistic heavy-ion collisions to probe nuclear structure, such as static nuclear deformation. Here we discuss the role of quantum zero-point fluctuations of the surface vibration of spherical nuclei in relativistic heavy-ion collisions. To this end, we employ an approach to describe the vibration in the space-fixed frame, which has been well established in the field of low-energy heavy-ion fusion reactions. We particularly consider…

Theoretical novel medical isotope production with deuterium-tritium fusion technology
Lee J. Evitts, Philip W. Miller, Chiara Da Pieve, Andrew Turner, Stefano Borini
https://arxiv.org/abs/2506.16817

Theoretical novel medical isotope production with deuterium-tritium fusion technology
Background: The emergence and growth of fusion technology enables investigative studies into its applications beyond typical power production facilities. This study seeks to determine the viability of medical isotope production with the neutrons produced in an example large fusion device. Using FISPACT-II (a nuclear inventory code) and a simulated fusion spectrum, the production yields of a significant number of potentially clinically relevant (both in use and novel) medical isotopes were calcu…

Replaced article(s) found for cs.CL. https://arxiv.org/list/cs.CL/new
[2/3]:
Automated Construction of a Knowledge Graph of Nuclear Fusion Energy for Effective Elicitation an...

This https://arxiv.org/abs/2503.17189 has been replaced.
initial toot: https://mastoxiv.page/@a…

Bayesian optimisation of poloidal field coil positions in tokamaks
The tokamak is a world-leading concept for producing sustainable energy via magnetically-confined nuclear fusion. Identifying where to position the magnets within a tokamak, specifically the poloidal field (PF) coils, is a design problem which requires balancing a number of competing economic, physical, and engineering objectives and constraints. In this paper, we show that multi-objective Bayesian optimisation (BO), an iterative optimisation technique utilising probabilistic machine learning m…

Development of an Atomic Layer Deposition System for Deposition of Alumina as a Hydrogen Permeation Barrier
Zachary R. Robinson, Jeffrey Woodward, Alexander C. Kozen, Joshua Ruby, Tyler Liao, Luke Herter, Rashad Ahmadov, Mark D. Wittman, Matthew Sharpe
https://arxiv.org/abs/2507.00958

Development of an Atomic Layer Deposition System for Deposition of Alumina as a Hydrogen Permeation Barrier
Tritium permeation into and through materials poses a critical challenge for the development of nuclear fusion reactors. Minimizing tritium permeation is essential for the safe and efficient use of available fuel supplies. In this work, we present the design, construction, and validation of custom atomic layer deposition (ALD) and deuterium permeation measurement systems aimed at developing thin-film hydrogen permeation barriers. Using the ALD system, we deposited conformal Al2O3 films on coppe…

An unusual type-I X-ray burst from the neutron star X-ray binary IGR J17591-2342: a double-photospheric-radius-expansion burst?
Sudip Bhattacharyya, Akshay Singh, Andrea Sanna
https://arxiv.org/abs/2506.16632

An unusual type-I X-ray burst from the neutron star X-ray binary IGR J17591-2342: a double-photospheric-radius-expansion burst?
Type-I X-ray bursts observed from neutron stars originate from intermittent unstable thermonuclear burning of accreted matter on these stars. Such bursts, particularly those reaching the Eddington luminosity and having a temporary photospheric radius-expansion due to radiation pressure, provide a testbed to study nuclear fusion processes in intense radiation, gravity, and magnetic fields. Here, we investigate time-resolved spectroscopic properties of a type-I burst from the accretion-powered mi…

Superatomic hydrogen: achieving effective aggregation of hydrogen atoms at pressures lower than that of metallic hydrogen
Jia Fan, Chenxi Wan, Rui Liu, Zhen Gong, Hongbo Jing, Baiqiang Liu, Siyang Liu, Zhigang Wang
https://arxiv.org/abs/2506.03463

Superatomic hydrogen: achieving effective aggregation of hydrogen atoms at pressures lower than that of metallic hydrogen
Metal hydrogen exhibiting electron delocalization properties has been recognized as an important prospect for achieving controlled nuclear fusion, but the extreme pressure conditions required exceeding hundreds of GPa remain a daunting challenge. Here, we propose a model of superatomic hydrogen, aiming to reduce the pressure conditions required for the effective aggregation of elemental hydrogen atoms. High-precision ab initio calculations indicate that the pressure required to compress the H13…

Multi-Timescale Dynamics Model Bayesian Optimization for Plasma Stabilization in Tokamaks
Rohit Sonker, Alexandre Capone, Andrew Rothstein, Hiro Josep Farre Kaga, Egemen Kolemen, Jeff Schneider
https://arxiv.org/abs/2506.10287

Multi-Timescale Dynamics Model Bayesian Optimization for Plasma Stabilization in Tokamaks
Machine learning algorithms often struggle to control complex real-world systems. In the case of nuclear fusion, these challenges are exacerbated, as the dynamics are notoriously complex, data is poor, hardware is subject to failures, and experiments often affect dynamics beyond the experiment's duration. Existing tools like reinforcement learning, supervised learning, and Bayesian optimization address some of these challenges but fail to provide a comprehensive solution. To overcome these limi…

Nuclear Quantum Many-Body Dynamics: From Collective Vibrations to Heavy-Ion Collisions (2nd edition)
C\'edric Simenel
https://arxiv.org/abs/2506.04261 …

Nuclear Quantum Many-Body Dynamics: From Collective Vibrations to Heavy-Ion Collisions (2nd edition)
New edition of the review [EPJA 48, (2012) 152]. The increase in computational power has naturally led to new applications of mean-field (and beyond) methods. This is particularly the case of quasi-fission reactions. Since the first edition, significant progress has also been made in treating pairing correlations dynamically, leading to realistic applications in multi-nucleon transfer, fusion and fission reactions. A new section has been added on fission dynamics. A summary of recent researches…

Hot pygmy dipole strength in nickel isotopes
Amandeep Kaur, Esra Y\"uksel, Nils Paar
https://arxiv.org/abs/2506.13354 https://ar…

Hot pygmy dipole strength in nickel isotopes
At finite temperatures, nuclear excitations are significantly modified, most notably through the emergence of additional low-energy dipole strength, which can critically impact astrophysical reaction rates. Ongoing fusion-evaporation experiments on Ni isotopes provide a unique opportunity to investigate the hot pygmy dipole strength (HPDS), underscoring the need for reliable theoretical predictions and a comprehensive understanding of this emerging phenomenon. In this work, the HPDS is investig…