Details

Autor(en) / Beteiligte

• Awe, T J
• Peterson, K J
• Yu, E P
• McBride, R D
• Sinars, D B
• Gomez, M R
• Jennings, C A
• Martin, M R
• Rosenthal, S E
• Schroen, D G
• Sefkow, A B
• Slutz, S A
• Tomlinson, K
• Vesey, R A

Titel

Experimental Demonstration of the Stabilizing Effect of Dielectric Coatings on Magnetically Accelerated Imploding Metallic Liners

Ist Teil von

• Physical review letters, 2016-02, Vol.116 (6), p.065001-065001, Article 065001

Ort / Verlag

United States: American Physical Society (APS)

Erscheinungsjahr

2016

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• Enhanced implosion stability has been experimentally demonstrated for magnetically accelerated liners that are coated with 70  μm of dielectric. The dielectric tamps liner-mass redistribution from electrothermal instabilities and also buffers coupling of the drive magnetic field to the magneto-Rayleigh-Taylor instability. A dielectric-coated and axially premagnetized beryllium liner was radiographed at a convergence ratio [CR=Rin,0/Rin(z,t)] of 20, which is the highest CR ever directly observed for a strengthless magnetically driven liner. The inner-wall radius Rin(z,t) displayed unprecedented uniformity, varying from 95 to 130  μm over the 4.0 mm axial height captured by the radiograph.