Initial study and design on ignition ellipraum
| Autor: | Ke Lan, Xin Li, Dongxian Lai, Yiqing Zhao |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Coupling
Materials science business.industry Radius Condensed Matter Physics Laser Atomic and Molecular Physics and Optics Power (physics) law.invention Ignition system Optics law Hohlraum Deposition (phase transition) Electrical and Electronic Engineering Atomic physics business Energy (signal processing) |
| Zdroj: | Laser and Particle Beams. 30:175-182 |
| ISSN: | 1469-803X 0263-0346 |
| DOI: | 10.1017/s0263034611000772 |
| Popis: | An initial study and design on ignition elliptical hohlraum (ellipraum) is given by using the expended plasma-filling model with criterions. As a result, in an ellipraum with a smaller ratio of major-to-minor axis (a/b), the radius ratio of ellipraum-to-capsule (b/RC) should be larger (hence more sphere-like) to meet the criterions of plasma-filling and laser deposition, meanwhile the required laser energy and peak power are lower and the coupling between different modes is weaker. To produce a 300 eV radiation pulse to ignite a capsule of 1 mm radius, an ellipraum of a/b = 1.6 and b/Rc = 2.8 is superior to a cylinraum with a length-to-diameter ratio of 1.81 and a cylinraum-to-capsule radius ratio of 2.54 in saving more than 10% laser energy and reducing 50% coupling between different modes. |
| Databáze: | OpenAIRE |
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