Left: Laser-generated proton source; Right: Laser microchannel experiment. Photo credit by Gerrit Bruhaug and the LLE.
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Physics
The study of how the world works at a fundamental level.
| Theory of space and time, either not or in the influence of gravity.
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| How and why things move the way they do.
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| Study of fundamental particles and interactions that make up matter & radiation -- up to nucleons.
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Engineering
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Check Category:Physics & Math & Engineering for now
Citations
- ↑ Laboratory for Laser Energetics. The photo is also found in Mr. Bruhaug's thesis: Laser-Driven Relativistic Electron and Terahertz Radiation Sources for HED Experiments.
Summary: The picture on the left is a laser-generated Target Normal Sheath Acceleration proton source. A relativistically intense laser hits a foil and blows out a huge jet of protons (and electrons) at MeV energies.
The reddish one on the right is a laser-microchannel experiment. A relativistically intense laser is shot at so-called "microchannel array" targets that have ultratiny tubes that experimenters try and get the beam down. Crazy physics then proceeds to happen with high-energy electrons, lots of THz and lots of x-rays made.
