An investigation progress toward Be-based ablator materials for the inertial confinement fusion

Abstract

The Be-based materials with many particular properties lead to an important research subject. The investigation progresses in the fabrication technologies are introduced here, including main three kinds of Be-based materials, such as Be-Cu capsule, ablator and high-purity Be material. Compared with the pioneer workgroup on Be-based materials, the differences in Be-Cu target fabrication were described, and a grain refinement technique by an active hydrogen reaction for Be coating was proposed uniquely. coatings were first prepared by the DC reactive magnetron sputtering with a high deposition rate . Pure polycrystalline films with uniform microstructures, smooth surface, high density and good optical transparency were fabricated. In addition, the high-purity Be materials with metal impurities in a ppm magnitude were fabricated by the pyrolysis of organometallic Be.