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Title: Controlling Rayleigh-Taylor Instabilities in Magnetically Driven Solid Metal Shells by Means of a Dynamic Screw Pinch

Journal Article · · Physical Review Letters
 [1];  [2];  [3];  [1]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  2. Naval Research Lab. (NRL), Washington, DC (United States). Plasma Physics Division
  3. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Univ. of Michigan, Ann Arbor, MI (United States). Nuclear Engineering and Radiological Sciences

Magnetically driven implosions of solid metal shells are an effective vehicle to compress materials to extreme pressures and densities. Rayleigh-Taylor instabilities (RTI) are ubiquitous, yet typically undesired features in all such experiments where solid materials are rapidly accelerated to high velocities. In cylindrical shells (“liners”), the magnetic field driving the implosion can exacerbate the RTI. Here, we suggest an approach to implode solid metal liners enabling a remarkable reduction in the growth of magnetized RTI (MRTI) by employing a magnetic drive with a tilted, dynamic polarization, forming a dynamic screw pinch. Our calculations, based on a self-consistent analytic framework, demonstrate that the cumulative growth of the most deleterious MRTI modes may be reduced by as much as 1 to 2 orders of magnitude. One key application of this technique is to generate increasingly stable, higher-performance implosions of solid metal liners to achieve fusion [M. R. Gomez et al., Phys. Rev. Lett. 113, 155003 (2014)]. Finally, we weigh the potentially dramatic benefits of the solid liner dynamic screw pinch against the experimental tradeoffs required to achieve the desired drive field history and identify promising designs for future experimental and computational studies.

Research Organization:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC04-94AL85000; 165746
OSTI ID:
1332916
Alternate ID(s):
OSTI ID: 1331831
Report Number(s):
SAND2016-10869J; PRLTAO; 648656; TRN: US1700122
Journal Information:
Physical Review Letters, Vol. 117, Issue 20; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 17 works
Citation information provided by
Web of Science

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Cited By (6)

Axial magnetic field injection in magnetized liner inertial fusion journal October 2017
A review on ab initio studies of static, transport, and optical properties of polystyrene under extreme conditions for inertial confinement fusion applications journal May 2018
Observations of the magneto-Rayleigh-Taylor instability and shock dynamics in gas-puff Z-pinch experiments journal July 2018
Anisotropy-driven collisional separation of impurities in magnetized compressing and expanding cylindrical plasmas journal December 2018
Design of dynamic screw pinch experiments for magnetized liner inertial fusion journal October 2019
Magneto-Rayleigh–Taylor instability in compressible Z-pinch liner plasmas journal June 2017

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