LLE Review 170

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• Review 170 Editor

Highlights

This volume of LLE Review 170, covering the period January–March 2022,

Highlights of research presented in this volume include the following:

• S. C. Miller and V. N. Goncharov model instability seeding mechanisms caused by internal defects in inertial confinement fusion targets (p. 1).
• A. Colaïtis et al. present detailed calculations that capture the persistent low-mode asymmetries evident in laser-direct-drive implosions on the OMEGA Laser System (p. 5).
• V. Gopalaswamy et al. present an analysis of limited coverage effects on areal-density measurements in inertial confinement fusion implosions on the OMEGA Laser System (p. 10).
• P. V. Heuer et al. report on diagnosing magnetic fields in cylindrical implosions with oblique proton radiography on the OMEGA Laser System (p. 16).
• L. S. Leal et al. model the effect of laser preheat in magnetized liner inertial fusion at the Omega Laser Facility (p. 19).
• K. M. Woo et al. present an analysis of core asymmetries in inertial confinement fusion implosions using 3-D hot-spot reconstruction of experimental data from the OMEGA Laser System (p. 21).
• J. R. Davies and P. V. Heuer conduct an evaluation of the direct inversion of proton radiographs in the context of cylindrical implosions (p. 24).
• H. Wen et al. report particle-in-cell modeling of plasma-jet merging in the large-Hall-parameter regime (p. 27).
• K. Weichman et al. present progress in modeling relativistic laser–plasma interaction with kilotesla-level applied magnetic fields (p. 30).
• G. Bruhaug et al. report the first single-shot electron radiography images using an electron beam from a 100-J-class laser-plasma accelerator (p. 35).
• G. Bruhaug et al. present on the development of a hardened THz energy meter for use on the kilojoule-scale, short-pulse OMEGA EP laser (p. 38).
• C. Dorrer and J. L Shaw demonstrate a single-shot cross-correlator based on the sum–frequency generation of counter-propagating beams in SBN61 (SrxBa1–xNb206 with x = 0.61) using the Multi-Terawatt laser (mA = 1053 nm) and the idler of the MTW-OPAL laser (mB = 1170 nm) (p. 41).
• K. L. Marshall et al. report on the multiparameter laser performance characterization of liquid crystals for polarization control devices in the nanosecond regime (p. 44).
• M. Sharpe, W. T. Shmayda, and J. Ruby report on the experimentally determined influence of heat treatments on the near-surface tritium concentration profiles in 316 stainless steel (p. 47).
• G. Chen et al. experimentally determine the electron effective mass in highly resistive GaAs by exploiting the influence of a magnetic field on optically excited transient THz surface emissions (p. 50).
• J. L. Peebles et al. provide an assessment of generating quasi-static magnetic fields using laser-driven “capacitor” coils (p. 53).
• R. B. Spielman discusses pulsed-power innovations for next-generation, high-current drivers (p. 57).
• J. Puth et al. summarize operations of the Omega Laser Facility during the second quarter of FY22 (p. 60).