Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun physics A cavity whose walls are in thermodynamic equilibrium with the radiation emitted by the cavity

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

Borrowing from German Hohlraum ("hollow area").

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Examples

  • "What we would like to do is take the laser and shine the laser onto what we call a hohlraum,

    Media Newswire 2009

  • The target will be held inside a tiny gold cylinder called a hohlraum, about the size of a pencil eraser.

    SFGate: Top News Stories 2010

  • In inertial confinement fusion (ICF) experiments, the energy of 192 powerful laser beams is fired into a small cylinder called a hohlraum, which contains a tiny spherical target filled with deuterium and tritium, two isotopes of hydrogen.

    TG Daily 2010

  • The historic level of laser energy delivered is about 30 times the energy delivered by any other group of lasers in the world and was achieved by focusing the energy of 192 powerful laser beams into a pencil-eraser-sized cylinder containing a tiny spherical target called a hohlraum (pictured below).

    Gizmag Emerging Technology Magazine 2010

  • The target will be held inside a tiny gold cylinder called a hohlraum, about the size of a pencil eraser.

    SFGate: Top News Stories 2010

  • A tiny chamber made of gold, called a hohlraum, is used to contain the pellet of heavy hydrogen fuel at the center of a fusion reaction at the National Ignition Facility.

    PhysOrg.com - latest science and technology news stories 2010

  • A tiny chamber made of gold, called a hohlraum, is used to contain the pellet of heavy hydrogen fuel at the center of a fusion reaction at the National Ignition Facility.

    PhysOrg.com - latest science and technology news stories 2010

  • Inside the hohlraum is a tiny pellet containing an extremely cold, solid mixture of hydrogen isotopes

    BBC News | News Front Page | World Edition 2010

  • A tiny chamber made of gold, called a hohlraum, is used to contain the pellet of heavy hydrogen fuel at the center of a fusion reaction at the National Ignition Facility.

    PhysOrg.com - latest science and technology news stories 2010

  • A tiny chamber made of gold, called a hohlraum, is used to contain the pellet of heavy hydrogen fuel at the center of a fusion reaction at the National Ignition Facility.

    Signs of the Times 2010

  • The 192 ultraviolet beams entered the target through plastic windows at the top and bottom of a pencil-eraser-sized gold cylinder, known as a hohlraum.

    How the world’s biggest laser smashed a nuclear-fusion record Jeff Tollefson 2024

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