The demonstration of magnetic field compression to many tens of megagauss in cylindrical implosions of inertial confinement fusion targets is reported for the first time. The OMEGA laser [T. R. Boehly et al., Opt. Commun. 133, 495 (1997)] was used to implode cylindrical CH targets filled with deuterium gas and seeded with a strong external field (>50 kG) from a specially developed magnetic pulse generator. This seed field was trapped (frozen) in the shock-heated gas fill and compressed by the imploding shell at a high implosion velocity, minimizing the effect of resistive flux diffusion. The magnetic fields in the compressed core were probed via proton deflectrometry using the fusion products from an imploding D[subscript 3]He target. Line-averaged magnetic fields between 30 and 40 MG were observed.
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机译：首次报道了惯性约束聚变目标的圆柱内爆中数十兆高斯磁场压缩的演示。 OMEGA激光器[T. R. Boehly等，选项公社133，495（1997）]将内爆的圆柱形CH靶从装有专门研发的磁脉冲发生器的氘气中注入，并注入了强外场（> 50 kG）。该种子场被捕获（冻结）在激波加热的气体填充物中，并由内爆壳以高内爆速度压缩，从而最小化了阻性通量扩散的影响。使用来自内爆D [He] 3目标的聚变产物，通过质子偏折法探测了压缩核中的磁场。观察到线平均磁场在30至40 MG之间。
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