Details

Autor(en) / Beteiligte

• Robey, H F
• Smalyuk, V A
• Milovich, J L
• Döppner, T
• Casey, D T
• Baker, K L
• Peterson, J L
• Bachmann, B
• Hopkins, L F Berzak
• Bond, E
• Caggiano, J A
• Callahan, D A
• Celliers, P M
• Cerjan, C
• Clark, D S
• Dixit, S N
• Edwards, M J
• Gharibyan, N
• Haan, S W
• Hammel, B A
• Hamza, A V
• Hatarik, R
• Hurricane, O A
• Jancaitis, K S
• Jones, O S
• Kerbel, G D
• Kroll, J J
• Lafortune, K N
• Landen, O L
• Ma, T
• Marinak, M M
• MacGowan, B J
• MacPhee, A G
• Pak, A
• Patel, M
• Patel, P K
• Perkins, L J
• Sayre, D B
• Sepke, S M
• Spears, B K
• Tommasini, R
• Weber, C R
• Widmayer, C C
• Yeamans, C
• Giraldez, E
• Hoover, D
• Nikroo, A
• Hohenberger, M
• Johnson, M Gatu

Titel

Performance of indirectly driven capsule implosions on NIF using adiabat-shaping

Ist Teil von

• Journal of physics. Conference series, 2016-05, Vol.717 (1), p.12045

Ort / Verlag

Bristol: IOP Publishing

Erscheinungsjahr

2016

Quelle

EZB Free E-Journals

Beschreibungen/Notizen

• A series of indirectly driven capsule implosions has been performed on the National Ignition Facility to assess the relative contributions of ablation-front instability growth vs. fuel compression on implosion performance. Laser pulse shapes for both low and high-foot pulses were modified to vary ablation-front growth & fuel adiabat, separately and controllably. Two principal conclusions are drawn from this study: 1) It is shown that an increase in laser picket energy reduces ablation-front instability growth in low-foot implosions resulting in a substantial (3-10X) increase in neutron yield with no loss of fuel compression. 2.) It is shown that a decrease in laser trough power reduces the fuel adiabat in high-foot implosions results in a significant (36%) increase in fuel compression together with no reduction in neutron yield. These results taken collectively bridge the space between the higher compression low-foot results and the higher yield high-foot results.