CAJ | 학술논문

在对准球型负载的构型和质量分布进行简要介绍的基础上，推导了准球型负载的均匀内爆过程。为了初步理解准球型负载Z箍缩内爆过程，并为负载设计提供参考，基于Sandia实验室Z装置的等效电路，利用OD模型获得了准球型负载Z箍缩的内爆过程中电流、速度、动能等关键参数的变化情况。计算了一定范围内，负载的质量、初始半径、两极张角对内爆过程尤其是最大内爆动能的影响。结果表明，在计算的参数范围内，负载的初始半径和张角变化相较于质量变化对负载电流有明显影响，同时负载的内爆动能与半径变化近似呈线性关系；而当两极张角增大时，尽管负载电流下降明显，最大内爆动能却有曲折上升的趋势。
재대준구형부재적구형화질량분포진행간요개소적기출상，추도료준구형부재적균균내폭과정。위료초보리해준구형부재Z고축내폭과정，병위부재설계제공삼고，기우Sandia실험실Z장치적등효전로，이용OD모형획득료준구형부재Z고축적내폭과정중전류、속도、동능등관건삼수적변화정황。계산료일정범위내，부재적질량、초시반경、량겁장각대내폭과정우기시최대내폭동능적영향。결과표명，재계산적삼수범위내，부재적초시반경화장각변화상교우질량변화대부재전류유명현영향，동시부재적내폭동능여반경변화근사정선성관계；이당량겁장각증대시，진관부재전류하강명현，최대내폭동능각유곡절상승적추세。
The configuration of quasi-spherical liner and its mass modulation were introduced. In order to get a primary understanding about quasi-spherical Z pinch implosion process and to provide a reference for liner design, several key parameters of quasi-spherical Z pinch liner acceleration, such as liner current, velocity, and kinetic energy, were obtained based on a zero dimensional method and an equivalent circuit model of the Z facility in Sandia National Laboratory. The influences of different liner mass, angle, and initial radius on final kinetic energy of the imploding plasma shell were studied within a finite scale of liner parameters. Calculated results show that initial radius or latitude variation of quasi-spherical liner have greater influences on liner current, relating to mass variation; meanwhile, the kinetic energy of liner has an approximate linear relationship with radius change; when liner has higher latitude, the maximum kinetic energy trends to increase, although the liner current decreases obviously.