Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Nuclear Fusion02:45

Nuclear Fusion

18.6K
The process of converting very light nuclei into heavier nuclei is also accompanied by the conversion of mass into large amounts of energy, a process called fusion. The principal source of energy in the sun is a net fusion reaction in which four hydrogen nuclei fuse and ultimately produce one helium nucleus and two positrons.
A helium nucleus has a mass that is 0.7% less than that of four hydrogen nuclei; this lost mass is converted into energy during the fusion. This reaction produces about...
18.6K
Atomic Nuclei: Nuclear Spin State Population Distribution01:14

Atomic Nuclei: Nuclear Spin State Population Distribution

962
Near absolute zero temperatures, in the presence of a magnetic field, the majority of nuclei prefer the lower energy spin-up state to the higher energy spin-down state. As temperatures increase, the energy from thermal collisions distributes the spins more equally between the two states. The Boltzmann distribution equation gives the ratio of the number of spins predicted in the spin −½ (N−) and spin +½ (N+) states.
962

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

A Short-Lived Isotope Counting System (SLICS) to measure reaction cross sections producing light, beta-decaying nuclei on OMEGA.

The Review of scientific instruments·2026
Same author

Enhancements in Laser-Direct-Drive Nuclear Performance with Target Radius.

Physical review letters·2026
Same author

Nuclear activation analysis of zirconium-90 isomeric and ground-state reactions at the OMEGA Laser Facility.

The Review of scientific instruments·2026
Same author

Observation of kinetic mix enhancement in thin-shell OMEGA implosions.

Physical review. E·2025
Same author

A new neutron time-of-flight detector for yield and ion-temperature measurements in DT implosions on OMEGA.

The Review of scientific instruments·2025
Same author

Applications of a Rayleigh-Taylor model to direct-drive laser fusion.

Physical review. E·2024
Same journal

Erratum: Bacterial Turbulence at Compressible Fluid Interfaces [Phys. Rev. Lett. 136, 138301 (2026)].

Physical review letters·2026
Same journal

Unveiling Light-Quark Yukawa Flavor Structure via Dihadron Fragmentation at Lepton Colliders.

Physical review letters·2026
Same journal

Adaptable Route to Fast Coherent State Transport via Bang-Bang-Bang Protocols.

Physical review letters·2026
Same journal

Topological Transition and Emergence of Elasticity of Dislocation in Skyrmion Lattice: Beyond Kittel's Magnetic-Polar Analogy.

Physical review letters·2026
Same journal

Pound-Drever-Hall Method for Superconducting-Qubit Readout.

Physical review letters·2026
Same journal

Coupling a ^{73}Ge Nuclear Spin to an Electrostatically Defined Quantum Dot in Silicon.

Physical review letters·2026
查看所有相关文章

相关实验视频

Updated: Jun 13, 2025

Cryogenic Liquid Jets for High Repetition Rate Discovery Science
08:34

Cryogenic Liquid Jets for High Repetition Rate Discovery Science

Published on: May 9, 2020

3.0K

在低温直驱聚变实验中的持久热点混合.

R C Shah1, D Cao1, I V Igumenshchev1

  • 1Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623-1299, USA.

Physical review letters
|September 13, 2024
PubMed
概括
此摘要是机器生成的。

在加速阶段与质量注入相关的X射线发射特征与实验中较差的热点收和较低的中子产量有关. 这种特征可以通过增加目标质量或adiabats来减少,但随着碎片的增加而增加.

更多相关视频

Laser-heating and Radiance Spectrometry for the Study of Nuclear Materials in Conditions Simulating a Nuclear Power Plant Accident
09:18

Laser-heating and Radiance Spectrometry for the Study of Nuclear Materials in Conditions Simulating a Nuclear Power Plant Accident

Published on: December 14, 2017

10.4K
High-Temperature and High-Pressure In situ Magic Angle Spinning Nuclear Magnetic Resonance Spectroscopy
08:55

High-Temperature and High-Pressure In situ Magic Angle Spinning Nuclear Magnetic Resonance Spectroscopy

Published on: October 9, 2020

5.5K

相关实验视频

Last Updated: Jun 13, 2025

Cryogenic Liquid Jets for High Repetition Rate Discovery Science
08:34

Cryogenic Liquid Jets for High Repetition Rate Discovery Science

Published on: May 9, 2020

3.0K
Laser-heating and Radiance Spectrometry for the Study of Nuclear Materials in Conditions Simulating a Nuclear Power Plant Accident
09:18

Laser-heating and Radiance Spectrometry for the Study of Nuclear Materials in Conditions Simulating a Nuclear Power Plant Accident

Published on: December 14, 2017

10.4K
High-Temperature and High-Pressure In situ Magic Angle Spinning Nuclear Magnetic Resonance Spectroscopy
08:55

High-Temperature and High-Pressure In situ Magic Angle Spinning Nuclear Magnetic Resonance Spectroscopy

Published on: October 9, 2020

5.5K

科学领域:

  • 等离子体物理学的物理学
  • 核聚变是一种核聚变.
  • 天体物理学 天体物理学

背景情况:

  • 在实验核聚变加速阶段的质量注入可以影响热点融合和中子产生.
  • 以前的研究发现了与这种现象相关的X射线发射特征.

研究的目的:

  • 为了研究X射线发射特征与核聚变中的实验结果之间的相关性.
  • 了解目标参数如何影响这种X射线签名.

主要方法:

  • 在加速阶段对X射线发射信号的分析.
  • 签名强度与热点收和中子产量的相关性.
  • 实验参数的变化 (目标质量,阿迪亚巴特,碎片).

主要成果:

  • 该X射线发射标志与热点收差和中子产生减少有关.
  • 增加的目标质量和更高设计的附加剂减少了签名.
  • 目标上的碎片增加增强了签名.
  • 蒸汽区域在减速时可能含有高达假设质量的两倍.

结论:

  • 已识别的X射线发射特征作为低于最佳的核聚变性能指标.
  • 控制目标质量,酸盐和碎片对于减轻这种特征和提高核聚变产量至关重要.
  • 对于精确的建模,需要精确估计蒸汽区域中的质量.