Optimization of Compact Hohlraum Design to ICF Studies

V. I. Kantsyrev , Alexandre S. Chuvatin (1) , V. V. Shlyaptseva , Alla S. Safronova , Ishor Shrestha , I. E. Golovkin , A. Stafford , C. Butcher , K. A. Schultz

1 LPP - Laboratoire de Physique des Plasmas

Proposed optimization of a compact hohlraum design with parallel-driven Z-pinch x-ray sources is discussed. This design was jointly proposed earlier by SNL and UNR [1] and was experimentally demonstrated in full configuration at the 1.7 MA UNR Zebra generator [2]. A parallel driven multiple Z-pinch sources scheme was a significant advance in terms of driver requirements compared to a traditional double-ended cylindrical pinch scheme. Considering only geometric arguments from [1], it became evident that the new scheme could be more efficient by a factor of ~ 4.5 in terms of energy requirements. The prospective results of compact hohlraum scheme optimization are described: improvement of geometry of a compact hohlraum with parallel driven multiple Z-pinches sources; application of Au wires (Za = 79) instead of traditionally used W (Za = 74) wires; and employment of double planar foils liner (DPFL) instead of DPWA in hohlraum’s x-ray sources. This work was supported by NNSA under DOE grant DE-NA0003047. References [1] B. Jones et al., Physical Review Letters 104, 125001 (2010) [2] V.L. Kantsyrev et al., Physical Review E 90, 063101 (2014) ORAL CONTRIBUTION

Domaines: Physique des plasmas [physics.plasm-ph]

V. I. Kantsyrev, Alexandre S. Chuvatin, V. V. Shlyaptseva, Alla S. Safronova, Ishor Shrestha, et al.. Optimization of Compact Hohlraum Design to ICF Studies. 10th International Conference on Inertial Fusion Sciences and Applications, IFSA 2017, Sep 2017, Saint-Malo, France. ⟨hal-02894235⟩