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Physics Informatics (PIF) Lab
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The lab analyzes the plasma physics of laser fusion with computer simulation.
AboutAbout the lab
Analyzing implosion and heating in fusion through simulation
The Physics Informatics Lab studies the implosion in laser fusion and the related fundamental laser-plasma physics through computer simulation.
In the newly proposed fast ignition scheme, compression lasers implode the target, and the resulting dense plasma is further heated by an ultra-intense laser to aim for ignition.
Because these are strongly nonlinear phenomena, simulation is important in addition to theoretical analysis, and the lab also develops computational codes best suited to the analysis.
In the institute's list of research groups, the lab is introduced as a group that uses computational science and AI to understand plasmas from fundamentals to applications.
Key terms
- Implosion
- Compressing a target a few millimeters in radius to a radius reduced by a factor of several tens
- Fast ignition scheme
- A scheme in which the dense plasma created by implosion with compression lasers is further heated with an ultra-intense laser to aim for ignition
- Particle code
- A simulation code that treats the motion of electron and ion particles, taking relativity into account
ResearchResearch themes
The lab studies the physics of the fast ignition scheme in laser fusion and the related fundamental laser-plasma physics. Its main research themes are the physics of implosion, heating, and ignition and burn, which it investigates through computer simulation and the development of analysis codes.
*Illustrative imagePhysics of implosion in laser fusion
During implosion, hydrodynamic instabilities grow on the shrinking target and greatly degrade performance. The lab analyzes a variety of phenomena while developing fluid-based analysis codes.
*Illustrative imagePhysics of ultra-intense lasers and plasmas
When an ultra-intense heating laser interacts with plasma, electrons move relativistically at speeds close to the speed of light, and strong electromagnetic fields can also be generated. The lab develops and analyzes with particle codes, which treat the motion of electrons and ions, as its core tool.
Physics of nuclear burn and heating
Nuclear burn, which occurs in the final stage of implosion, determines the performance of laser fusion. The challenge is how to heat and burn fuel that has been compressed into a complex shape, and the lab develops particle codes, Fokker-Planck codes, and fluid codes.
Integrated code for fast ignition
The lab is developing a code that calculates consistently from implosion through heating to burn. This makes it possible to describe the initial and boundary conditions of each individual simulation more accurately. Applications to the analysis of particle acceleration and EUV generation are also expected.
MembersFaculty
The members of the Physics Informatics Lab are faculty members.
- ProfessorHideo Nagatomo
- Assistant ProfessorKazunori Shibata
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Lampe plasma premiere generation - simulation solaire” Lumieresuisse / CC BY-SA 3.0 (cropped)
- Physics of implosion in laser fusion: “Rayleigh-Taylor instability” Lawrence Livermore National Laboratory / Public domain (cropped)
- Physics of ultra-intense lasers and plasmas: “Filaments inside a plasma tube” Bravemimoza / CC BY 4.0 (cropped)
- Related lab (Open-System Plasma Theory (TOP) Lab): “Orion laser hall” Colin N. Danson et al. / CC BY 4.0 (cropped)
- Related lab (Nonequilibrium Radiative Plasma Theory (THR) Lab): “High Power Laser Energy Research Facility drawing” Colin N. Danson et al. / CC BY 4.0 (cropped)
- Related lab (Ultra-Intense Field Science (LF) Lab): “Plasma without and with magnetic field” Gerritse / CC BY-SA 3.0 (cropped)
- Related lab (Extreme Plasma (KGP) Lab): “The moment a high-power laser pulse interacts with a target to produce a plasma is captured at the Vulcan PW facility ( )” Science and Technology Facilities Council / CC BY-SA 2.0 (cropped)
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