Lattice Confinement Fusion (LCF) Technology Utilized By Astral Systems Ltd
Theresa L Benyo · Lawrence Forsley
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NASA Glenn’s lattice confinement fusion team — Theresa Benyo as principal investigator, Lawrence Forsley as deputy — wrote this short report to record something new for the field: a company selling a working device built on their physics. Lattice confinement fusion runs fusion inside a metal solid. Deuterium fuel is packed into the gaps between the metal atoms, the lattice’s own electrons screen the repulsion between the nuclei, and a trigger such as a gamma beam sets the reactions off. The lattice holds that fuel indefinitely at about a billion times the density of magnetic confinement fusion, and it does it at ambient temperature. The British firm Astral Systems applied the two Physical Review C papers Glenn published in 2020 and got at least fifty times more deuterium–deuterium fusion neutrons than the commercial generator it replaced, with 99 percent of the reactions coming from the lattice rather than from the plasma. The prototype fits on a desktop. Astral told Glenn it planned to deliver devices in 2025 for the global medical radioisotope market.
Why it matters hereThis is chapter 12’s evidence that lattice confinement fusion has left the laboratory — the NASA Glenn result carried into a British company’s product line with a fifty-fold neutron gain and a delivery date, which is what screening physics looks like once it becomes hardware someone can buy.
What it claims
01Lattice confinement fusion accomplishes fusion reactions in a metal solid: deuterium fuel is confined to the space between metal atoms and, with the electrons in the metal lattice and a trigger such as a gamma beam, fusion reactions are produced.Opening paragraph
Published and peer-reviewed02Fusion products were observed in an electron-screened, deuterated metal lattice by reacting cold deuterons with hot deuterons produced by elastically scattered neutrons originating from bremsstrahlung photodissociation, giving d-D fusion.Opening paragraph, Fig 2
Published and peer-reviewed03Lattice confinement fusion indefinitely maintains deuterium fuel at a billion times the density of magnetic confinement fusion, and does so in a lattice at ambient temperature, creating an energetic quantum mechanical environment in which individual atoms reach fusion-level kinetic energies.Paragraph 2
Published and peer-reviewed04Applying the principles of the two 2020 Physical Review C papers, Astral Systems Ltd boosted d-D fusion neutron output by at least 50 times over a commercially available predecessor generator, and reports that 99 percent of the fusion reactions are produced by lattice confinement fusion within their electrostatic-confinement plasma-based fusion in a single desktop device.Paragraph 4
On the bench now05Astral Systems planned to deliver devices using lattice confinement fusion technology in 2025, generating d-D fusion neutrons and anticipated DT fusion neutrons in quantities that enable new classes of conventional and short-lived radioisotopes to be produced locally for the global medical radioisotope market.Final paragraph
What to watch06NASA’s stated application path for the energy released by lattice confinement fusion is small, compact, controllable power reactors — power for long-duration exploration missions, in-space propulsion, space-based nuclear medicine, Earth-based electrical power and medical radioisotopes — with the research funded by NASA Headquarters’ Planetary Science Division and the NASA Innovative Advanced Concepts programme.Paragraph 3
What to watch
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Lattice Confinement Fusion, the method developed by a GRC research team, accomplishes fusion reactions in a metal solid. Deuterium fuel is confined to the space between metal atoms and with electrons in the metal lattice and a trigger such as a gamma beam, fusion reactions are produced. The team (Fig 1) is currently led by LMN/Dr. Theresa Benyo, LCF Principal Investigator (PI), and Lawrence Forsley, LCF Deputy PI, from Global Energy Corporation and HX5/LMN. Fusion products were observed (Fig 2) in an electron-screened, deuterated metal lattice by reacting cold deuterons (d) with hot deuterons (D) produced by elastically scattered neutrons originating from bremsstrahlung photodissociation resulting in d-D fusion. Previously, the worldwide fusion research community has used deuterium-tritium (DT) fuel for two types of fusion: inertial confinement fusion (ICF) and magnetic confinement fusion (MCF). ICF compresses DT fuel to extremely high levels but for only a few nanoseconds when fusion can occur. In MCF, the DT fuel is heated in a plasma to temperatures much higher than those at the center of the Sun.
Alternatively, LCF indefinitely maintains fusion deuterium fuel in a metal lattice at a billion times the density of magnetic confinement fusion. Yet, LCF fusion occurs in a lattice at ambient temperature. While initially at room temperature, LCF creates an energetic quantum mechanical environment inside the lattice where individual atoms achieve fusion-level kinetic energies.
NASA researchers are seeking new energy sources for deep-space exploration missions. The energy created by LCF could be harnessed to power various NASA missions requiring small, compact, controllable power reactors. With more study and LCF development, future applications could include power systems for long-duration space exploration missions, in-space propulsion, or space-based nuclear medicine. LCF could also enable both Earth-based electrical power and produce medical radioisotopes. LCF research has been funded by HQ’s Planetary Science Division (PSD) and the NASA Innovative Advanced Concepts (NIAC) Program. At the last NIAC User Symposium, Lawrence Forsley and Leonard Dudzinski from NASA PSD met with two Astral System Ltd team members to discuss how using the LCF technology improved their neutron generator.
Utilizing the principles outlined in the two Physical Review C papers published in 2020 by the LCF research team at GRC, Astral Systems Ltd., has been able to boost d-D fusion neutron output by at least 50 times compared to a commercially available neutron generator predecessor. Astral Systems Ltd., reports that 99 percent of the fusion reactions are produced by LCF within their Electrostatic Confinement plasma-based fusion in a single device. Their LCF-infused operating prototype fits on a desktop (Fig 3). LCF makes their devices significantly more effective at generating practical neutrons than any other devices on the market. With their devices, LCF initiated d-D fusion neutrons and anticipated DT fusion neutrons will be generated in significant quantities, enabling new classes of conventional and short-lived radioisotopes to be locally produced serving important new medical and industrial applications. Astral Systems Ltd., visited GRC in September (Fig 4), and noted they plan to deliver their devices using Lattice Confinement Fusion technology in 2025. These devices will serve the global medical radioisotope market.
The way in
https://ntrs.nasa.gov/citations/20240014095
How to cite it
Theresa L Benyo, Lawrence Forsley (2024) Lattice Confinement Fusion (LCF) Technology Utilized By Astral Systems Ltd. https://ntrs.nasa.gov/citations/20240014095
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