In “indirect drive” inertial confinement fusion (ICF) experiments on NIF, up to 192 laser beams are fired into a centimeter-sized hollow cylinder called a hohlraum. This generates a “bath” of soft x rays that ablate, or blow off, the surface of a peppercorn-sized capsule suspended in …

The National Ignition Facility (NIF) is a laser-based inertial confinement fusion (ICF) research device, located at Lawrence Livermore National Laboratory in Livermore, California, United States. NIF's mission is to achieve fusion ignition with high energy gain .

2024年6月20日 · The repeated achievement of fusion ignition at NIF has established the fundamental scientific feasibility of laser-driven inertial confinement fusion (ICF) as a path toward fusion energy—a potentially transformative technology that could produce electric power without carbon emissions, long-lived nuclear waste, or the risk of meltdowns.

美国的国家点火装置nif，就是一种基于激光的惯性约束聚变(icf) 研究装置，nif 的使命是实现高能量增益的聚变点火。从上面的原理分析看，点火这个名字，取的是恰如其分的。

2022年1月26日 · At NIF 17, 192 lasers deliver up to 1.9 MJ of frequency-tripled light into a high atomic number (Z) ‘hohlraum’ (Fig. 1) that serves the purpose of an X-ray converter generating a nearly ...

NIF Ignition Nova, Omega Halite/Centurion Why do we believe that ignition will work on NIF? •Over 15,000 experiments on Nova, Omega and other facilities have provided an extensive data base to develop confidence in the numerical codes •Benchmarked numerical simulations provide a …

在本综述中，我们描述了美国选择追求的三条主要惯性约束聚变（ICF）路径（即激光间接驱动、激光直接驱动和磁驱动），并讲述了美国ICF计划在实现这些里程碑之前需要克服的应用物理学和工程挑战的一些故事。 为了帮助理解这个故事，我们介绍了几个惯性聚变的关键物理原理，并且展示了许多关键的ICF目标物理可以从 经典力学 和热力学的角度理解。 此外，经典力学和热力学的原理是支撑ICF研究背景下燃烧等离子体、点火等离子体和增益等里程碑科学定义的基础。 特别 …

2008年7月1日 · The National Ignition Facility (NIF) is a 192-beam laser facility that will produce 1.8 MJ and 500 TW of ultraviolet light for performing ignition target experiments. NIF is the most recent Nd-glass laser constructed at LLNL for ICF research.

Summary of X‐ray drive ignition on the NIF Progress in learning how to control drive symmetry • Identified as major factor limiting performance Beginning to apply lessons to understand how far this can scale towards ignition – need time to evaluate

2023年6月16日 · 由美国能源部的国家核安全管理局（National Nuclear Security Administration，NNSA）资助的NIF是目前世界上体量最大、能量最高的激光装置，由192路波长为351 nm的激光组成。 如图1所示，它可将2 MJ以上的能量同时汇聚到靶室中心的毫米级靶丸上，设计和建造始于20世纪90年代，在2003年首次出光，并于2009年进行了第一次全面性实验。 截至目前，NIF仍然是全球唯一一个能够进行ICF点火实验的装置。 图1 NIF黑腔：效果图展示了放置 …