AI Article Synopsis
- The study reports the first observations of weakly seeded Brillouin sidescatter in indirect-drive inertial confinement fusion experiments.
- Two mechanisms for seeding were identified: reflections from beams (known as "glint") and backscatter from adjacent beams at different angles.
- Understanding these processes is vital because they significantly impact energy loss and help in analyzing conditions inside fusion targets.
Article Abstract
We present the first observations of multibeam weakly seeded Brillouin sidescatter in indirect-drive inertial confinement fusion (ICF) experiments. Two seeding mechanisms have been identified and quantified: specular reflections ("glint") from opposite hemisphere beams, and Brillouin backscatter from neighboring beams with a different angle of incidence. Seeded sidescatter can dominate the overall coupling losses, so understanding this process is crucial for proper accounting of energy deposition and drive symmetry. Glint-seeded scattered light could also be used to probe hydrodynamic conditions inside ICF targets.
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| http://dx.doi.org/10.1103/PhysRevLett.114.125001 | DOI Listing |
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