Link/Search & Gossip > Science/Physics/Energy > National Ignition Facility at Lawrence Livermore National Laboratory (LLNL) announced "nuclear fusion ignition" (Energy: input 2.05 MJ, output 3.15 MJ, 2022)

 

Link/Search & Gossip > Science/Physics/Energy > National Ignition Facility at Lawrence Livermore National Laboratory (LLNL) announced "nuclear fusion ignition" (Energy: input 2.05 MJ, output 3.15 MJ, 2022)

 

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* Gossip: 비교적 최근에... 이런저런 흥미로운 과학/기술 기사들이 나오는데... 이번에 핵융합 건은...
   아직 가장 최근의 결과로는 논문도 나오지 않은 것 같지만, 기자회견 내용 상으로는 그럴듯해 보이고;
   지난번에 웜홀 건은... 기사들만 조금 들여다봐도, 이전부터 있었던... 오래된 얘기들의 포장/과장???
   과학/기술의 전문분야에서 일반인을 위한 대중매체로 넘어올 때, 언론의 필터(?) 역할이 꽤 중요한 점.

Issue > 언론의 역할은? > 대학교 교양/전공 수준, 대학원/전문가 수준, 다른 나라 이야기 등
https://linkandgossip.tistory.com/873

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Link/Search & Gossip > National Ignition Facility at Lawrence Livermore National Laboratory (LLNL) announced "nuclear fusion ignition" (input 2.05 MJ, output 3.15 MJ, 2022)
https://linkandgossip.tistory.com/2971

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Science > Q: Did physicists create a wormhole in a quantum computer? (Nature, 2022) A: No.
https://linkandgossip.tistory.com/2952

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* Gossip: 해당 LLNL 논문들 찾아서 읽어볼 것~!

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Breakthrough in nuclear fusion energy announced
By Esme Stallard
BBC News Climate and Science
https://www.bbc.com/news/science-environment-63950962  

The experiment took place at the National Ignition Facility at the Lawrence Livermore National Laboratory (LLNL) in California.
The National Ignition Facility in California is a $3.5bn (£2.85bn) experiment.
It puts a tiny amount of hydrogen into a capsule the size of a peppercorn.
Then a powerful 192-beam laser is used to heat and compress the hydrogen fuel.
The laser is so strong it can heat the capsule to 100 million degrees Celsius - hotter than the centre of the Sun, and compress it to more than 100 billion times that of Earth's atmosphere.
Under these forces the capsule begins to implode on itself, forcing the hydrogen atoms to fuse and release energy.
On announcing the breakthrough Dr Marvin Adams, deputy administrator for defense programs at the US National Nuclear Security Administration, said that the laboratory's lasers had input 2.05 megajoules (MJ) of energy to the target, which had then produced 3.15 MJ of fusion energy output.

Breakthrough in nuclear fusion energy announced

 

J. Laurea/LLNL
A cryogenic target used for fusion experiments at the National Ignition Facility.

 

Gaining Ground in Nuclear Fusion
December 14, 2022• Physics 15, 195
https://physics.aps.org/articles/v15/195  

Fusion researchers received an early holiday present with the confirmed measurement of a laser-induced fusion reaction that produced more energy than it consumed.

Researchers at the National Ignition Facility (NIF) are celebrating the end of 2022 with a long-awaited result. The team reported yesterday at a press briefing that one of its laser-powered fusion reaction trials produced 1.5 times more energy than it consumed. The result is the second major advance reported this year by the NIF team (see Viewpoint: Fusion Turns Up the Heat). That demonstration produced a gain (the ratio of energy out to energy in) of 0.72, while this experiment achieves a gain greater than one — a first for any fusion experiment. The breakthrough signifies the culmination of over 60 years of work on fusion research, motivated by the dream of clean, abundant energy. However, researchers note that a commercial laser-based fusion reactor remains “decades away.”
The record-breaking fusion experiment occurred at 1:03 a.m. PST on December 5, 2022, when NIF researchers fired 2 MJ of energy at a fuel target and recorded a fusion energy release of just over 3 MJ. At the press briefing, US Secretary of Energy Jennifer Granholm offered a big congratulations to the NIF team for a result that she said “will go down in the history books.” Lawrence Livermore National Laboratory (LLNL) director Kim Budil said that the result is a huge step for fusion research. She added, “I cannot wait to see where it takes us.”
Based at LLNL in California, the $3.5 billion NIF facility studies future energy production as well as nuclear arms capabilities without the need of actual weapons testing. The technique used to generate nuclear reactions is called inertial confinement fusion (ICF). In a typical experiment, researchers fire 192 high-powered laser beams at a millimeter-wide metal cylinder that holds a peppercorn-sized capsule filled with nuclear fuel. The beams heat the cylinder to a few million degrees Celsius, causing it to release a torrent of x rays that heat and crush the capsule. As a result, the fuel — a mixture of two forms of heavy hydrogen, deuterium and tritium — can briefly become hotter and denser than the Sun. Under these conditions, the hydrogen nuclei fuse together to form helium, producing a few-billionths-of-a-second-long burst of energy.

Gaining Ground in Nuclear Fusion

 

Burning plasma achieved in inertial fusion
Published: 26 January 2022
https://www.nature.com/articles/s41586-021-04281-w

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Google > lawrence livermore national lab nuclear fusion energy
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🔎 lawrence livermore national lab nuclear fusion energy: Google 검색

Google Scholar > lawrence livermore national lab nuclear fusion energy
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Google 학술 검색

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Inertial confinement fusion
https://en.wikipedia.org/wiki/Inertial_confinement_fusion

Magnetic confinement fusion
https://en.wikipedia.org/wiki/Magnetic_confinement_fusion

Big science
https://en.wikipedia.org/wiki/Big_science

 

Google > inertial nuclear fusion
https://www.google.com/search?q=inertial+nuclear+fusion 

관성 봉입 핵융합

Google > magnetic nuclear fusion
https://www.google.com/search?q=magnetic+nuclear+fusion 

Magnetic confinement fusion

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Albert Einstein Explaining " E=MC² "
@theshortflims01
https://www.youtube.com/shorts/ecc8vfpm3C0

 

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YouTube > nuclear fusion
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YouTube > nuclear fusion breakthrough 2022
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