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Category: nuclear energy – Page 60

Power plasma with gigajoule energy turnover generated for eight minutes

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After successful recommissioning in autumn 2022, the Greifswald nuclear fusion experiment has surpassed an important target. In 2023, an energy turnover of 1 gigajoule was targeted. Now the researchers have even achieved 1.3 gigajoules and a new record for discharge time on Wendelstein 7-X: the hot plasma could be maintained for eight minutes.

During the three-year completion work that ended last summer, Wendelstein 7-X was primarily equipped with water cooling for the wall elements and an upgraded heating system. The latter can now couple twice as much power into the as before. Since then, the experiment can be operated in new parameter ranges.

“We are now exploring our way towards ever higher energy values,” explained Prof. Dr. Thomas Klinger, head of the Stellarator Transport and Dynamics Division at the Max Planck Institute for Plasma Physics (IPP) in Greifswald. “In doing so, we have to proceed step by step so as not to overload and damage the facility.”

US to transfer nuclear submarine technology to Australia under new AUKUS deal

The move uses a loophole in the NPT and prompts fears of nuclear proliferation.

The U.S. will lend its advanced nuclear propulsion technology to build nuclear-powered submarines for Australia as it looks to counter the rising influence of China in the Indo-Pacific region. This is the first major agreement under the AUKUS pact, a trilateral arrangement that was set up 18 months ago with the U.K., the U.S., and Australia as signatories.

Back in September 2021, when the AUKUS pact was announced, the U.S. had confirmed that it would help Australia acquire nuclear-powered submarines.

LockieCurrie/iStock.

Under the arrangement, the U.S. will supply its nuclear propulsion technology to Australia, making it the only country in the world after the U.K. to have gained such access. This will help advance Australia’s diesel engine-powered submarine fleet and allow it to carry out long-range strikes.

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Michelle Catts — SVP, Nuclear Programs, GE-Hitachi — Reliable Carbon-Free Power For The World

Reliable carbon-free power for the world — michelle catts, senior vice president, nuclear programs, ge-hitachi nuclear energy.

Michelle Catts is the Senior Vice President of Nuclear Programs at GE-Hitachi (GEH — https://nuclear.gepower.com/) located in Wilmington, NC.

Ms. Catts has over 18 years of demonstrated managerial and technical expertise in nuclear Regulatory Affairs and currently is responsible for ensuring world-class Quality, Continuous Improvement, Regulatory Affairs, and oversight of Environment, Health & Safety programs. She manages a multimillion-dollar budget and over a 30-member organization. She provides licensing and quality leadership and guidance to support nuclear fuel facility licensing, current nuclear fleet fuel reload/outage licensing activities, new reactor and new fuel opportunities, Technical Regulations and Standards, and GE-Hitachis’s Vallecitos and Morris sites.

Prior to joining GE-Hitachi, Ms. Catts worked for the U.S. Nuclear Regulatory Commission (NRC) where she held positions of increasing responsibility including as a nuclear reactor inspector stationed onsite at nuclear power plants up to the Policy Advisor to the Presidential Appointed NRC Chairman.

Ms. Catts holds a B.S. in Nuclear Engineering from North Carolina State University and is currently working on her MBA at UNCW.

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Retro Bio’s $180m backer finally revealed

Retro Biosciences’ mysterious backer has finally been revealed!

In 2021 the longevity industry received one of its largest investments to date, with a $180m investment being made into the pharmaceutical start known as Retro Biosciences, or Retro Bio for short. Not only was this investment cause for celebration within the field of regenerative medicine, but it also came with a tantalising mystery, as the backer, or indeed backer, did not make themselves publicly known. It was assumed that due to the secrecy involved, it was likely that this investment had come from a small number of individuals, potentially just a single backer. This mystery backer, combined with the notable capital investment, led to much media attention at the time, and has since garnered a significant amount of interest in Retro Bio from both the general public and future potential financial backers. That was until last week, when the mystery backer finally decided that now was the right time to reveal their identity to the general public.

In an interview with MIT Technology review, American entrepreneur Sam Altman revealed that he was the sole backer for the pharmaceutical start-up, who single handily provided the entire $180m investment. Sam Altman, who primarily made his fortune in the tech industry (specifically through social media companies such as Loopt) has become somewhat of an angel investor for a slew of world changing, innovative companies which are involved in everything from artificial intelligence to nuclear energy. It is hoped that this significant single investment marks the beginning of a longevity tech boom, similar to what was seen during the dot-com boom (but hopefully without the disastrous ending).

In a breakthrough experiment, fusion gave off more energy than it used

A new test finally ignited a nuclear fusion reaction that unleashed more energy than it took in. This raises hopes that someday the reaction that powers the sun could also cleanly power activities here on Earth.

The experiment took place at the National Ignition Facility in Livermore, Calif. The U.S. Department of Energy announced its achievement on December 13.

“This is a monumental breakthrough,” says Gilbert Collins. This physicist works at the University of Rochester in New York and did not take part in the new research. “Since I started in this field, fusion was always 50 years away,” Collins says. “With this achievement, the landscape has changed.”

First measurements of hydrogen-boron fusion in a magnetically confined fusion plasma

As fusion developers around the world race to commercialize fusion energy, TAE Technologies has pioneered the pursuit of the cleanest and most economical path to providing electricity with hydrogen-boron (also known as p-B11 or p11 B), an abundant, environmentally sound fuel. Today the company is announcing, in collaboration with Japan’s National Institute for Fusion Science (NIFS), a noteworthy research advancement: the first-ever hydrogen-boron fusion experiments in a magnetically confined fusion plasma.

In a paper published by Nature Communications, scientists explain the outcome of the nuclear reaction of hydrogen-boron in an experiment in NIFS’ Large Helical Device (LHD). This paper describes the experimental work of producing the conditions necessary for hydrogen-boron fusion in the LHD plasma and TAE’s development of a detector to make measurements of the hydrogen-boron reaction products: helium nuclei, known as alpha particles.

The finding reflects years of collaborative international scientific fusion research, and represents a milestone in TAE’s mission to develop commercial fusion power with hydrogen-boron, the cleanest, most cost-competitive, and most sustainable cycle for fusion.

Reactor Neutrinos Detected by Water

Researchers have captured the signal of neutrinos from a nuclear reactor using a water-filled neutrino detector, a first for such a device.

In a mine in Sudbury, Canada, the SNO+ detector is being readied to search for a so-far-undetected nuclear-decay process. Spotting this rare decay would allow researchers to confirm that the neutrino is its own antiparticle (see Viewpoint: Probing Majorana Neutrinos). But while SNO+ team members prepare for that search, they have made another breakthrough by capturing the interaction with water of antineutrinos from nuclear reactors [1]. The finding offers the possibility of making neutrino detectors from a nontoxic material that is easy to handle and inexpensive to obtain, key factors for use of the technology in auditing the world’s nuclear reactors (see Feature: Neutrino Detectors for National Security).

The SNO+ detector was inherited from the earlier Sudbury Neutrino Observatory (SNO) experiment. Today the detector is filled with a liquid that lights up when charged particles pass through it. But in 2018, to calibrate the detector’s components and to characterize its intrinsic radioactive background signal after the experiment’s upgrade, it contained water. The antineutrino signal was observed when, after completing those measurements, the researchers took the opportunity to carry out additional experiments before the liquid was switched out.

US-Japan team hails H2-boron plasma fusion breakthrough

An innovative nuclear fusion technology that uses no radioactive materials and is calculated capable of “powering the planet for more than 100,000 years”, has been successfully piloted by a US-Japanese team of researchers.

California-based TAE Technologies, working with Japan’s National Institute for Fusion Science (NIFS), have completed first tests of a hydrogen-boron fuel cycle in magnetically-confined plasma, which could generate cleaner, lower cost energy that that produced by the more common deuterium-tritium (D-T) fusion process.

“This experiment offers us a wealth of data to work with and shows that hydrogen-boron has a place in utility-scale fusion power. We know we can solve the physics challenge at hand and deliver a transformational new form of carbon-free energy to the world that relies on this non-radioactive, abundant fuel,” said Michl Binderbauer, CEO of TAE Technologies.

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