Lifeboat Foundation

New observations at the DIII-D National Fusion Facility offer vital insights into energetic ions in fusion plasmas, key for fusion power development and space plasma understanding, with implications for satellite technology.

In a burning plasma, maintaining confinement of fusion-produced energetic ions is essential to producing energy. These fusion plasmas host a wide array of electromagnetic waves that can push energetic ions out of the plasma. This reduces the heating of the plasma from fusion reaction products and ends the burning plasma state.

Recent measurements at the DIII-D National Fusion Facility provide the first direct observations of energetic ions moving through space and energy in a tokamak. Researchers combined these measurements with advanced computer models of electromagnetic waves and how they interact with energetic ions. The results provide an improved understanding of the interplay between plasma waves and energetic ions in fusion plasmas.

Alternative ways of powering, cooling, and constructing reactors could help get more nuclear energy on the grid.

I’ve got nuclear power on the brain this week.

Large, low-background detectors using xenon as a target medium are widely used in fundamental physics, particularly in experiments searching for dark matter or studying rare decays of atomic nuclei. In these detectors, the weak interaction of a neutral particle—such as a neutrino—with a xenon-136 nucleus can transform it into a cesium-136 nucleus in a high-energy excited state.

The gamma rays emitted as the cesium-136 relaxes from this excited state could allow scientists to separate rare signals from background radioactivity. This can enable new measurements of solar neutrinos and more powerful searches for certain models of dark matter. However, searching for these events has been difficult due to a lack of reliable nuclear data for cesium-136. Researchers need to know the properties of cesium-136’s excited states, which have never been measured for this isotope.

This research, appearing in Physical Review Letters, provides direct determination of the relevant data by measuring gamma-ray emission from cesium-136 produced in nuclear reactions at a particle accelerator. Importantly, this research reveals the existence of so-called “isomeric states”—excited states that exist for approximately 100ns before relaxing to the ground state.

They’re working on it.

A Chinese company has announced they’re planning to mass-produce tiny nuclear batteries that can last up to 50 years, possibly beating both a British and an American company who have tried to put those on the market for several years. What does that mean? Will we soon all power our phones with nuclear power? Let’s have a look.

Continue reading “This New Nuclear Battery Could Soon Go On the Market” »

Betavolt wants to create batteries that will last a lifetime by 2025.

A Chinese startup called Betavolt has cooked up this itty-bitty nuclear battery — about the size of a little coin — which they claim can crank out electricity for 50 years straight, with no charging pit stops needed.

As the company leaps from development to the pilot stage, they’re gearing up for full-scale production and a grand entrance into the market pretty soon.

Continue reading “China’s nuclear battery powers your smartphone for 50 years straight” »

The design uses China’s first diamond semiconductor material.

I want this.

A Chinese company called Betavolt Technology has started working on nuclear batteries, and if this turns into something that actually works, you can say goodbye to smartphone charging. Based on the information we have received, the company is working on batteries across several devices.

The nuclear batteries are able to hold a charge for 50 years. Yes, you have heard this right. If this technology ever sees the light of day and hits the mainstream, it is safe to say that our smartphone batteries will outlive many of us.

Continue reading “China is Working on Bringing Nuclear Batteries to Smartphones, Making Charging Absolutely Obsolete” »

Fusion’s success as a renewable energy depends on the creation of an industry to support it, and academia is vital to that industry’s development.

A new study suggests that universities have an essential role to fulfill in the continued growth and success of any modern high-tech industry, and especially the nascent fusion industry; however, the importance of that role is not reflected in the number of fusion-oriented faculty and educational channels currently available. Academia’s responsiveness to the birth of other modern scientific fields, such as aeronautics and nuclear fission, provides a template for the steps universities can take to enable a robust fusion industry.

Insights from Experts.

The possible emission rate of particle-stable tetraneutron, a four-neutron system whose existence has been long debated within the scientific community, has been investigated by researchers from Tokyo Tech. They looked into tetraneutron emission from thermal fission of ²³⁵ U by irradiating a sample of ⁸⁸ SrCO₃ in a nuclear research reactor and analyzing it via γ-ray spectroscopy.

Tetraneutron is an elusive atomic nucleus consisting of four neutrons, whose existence has been highly debated by scientists. This stems primarily from our lack of knowledge about systems consisting of only neutrons, since most atomic nuclei are usually made of a combination of protons and neutrons. Scientists believe that the experimental observation of a tetraneutron could be the key to exploring new properties of atomic nuclei and answering the age-old question: Can a charge-neutral multineutron system ever exist?

Two recent experimental studies reported the presence of tetraneutrons in bound state and resonant state (a state that decays with time but lives long enough to be detected experimentally). However, theoretical studies indicate that tetraneutrons will not exist in a bound state if the interactions between neutrons are governed by our common understanding of two or three-body nuclear forces.