空间阵列的狭窄波束型引力辐射

本文讨论了质量四极振子空间矩形点阵阵列的引力辐射功率和辐射角分布,并给出了解析表达式。计算表明,这种阵列能产生方向性很强的狭窄引力辐射波束,关英男(Seki)等人提出的行波型引力辐射理论可作为本文的特殊情况而自然地导出。用本文方法对具体数例的计算表明,一百个30×30×0.03cm³的CdS晶体组成的空间阵列,在理想超高频声学共振和完全行波型同步加强的情况下,最优方向引力辐射能流密度可望达2.84×10^-1erg/cm²·s,这个结果显示了 关键词：

NARROW WAVE BEAM-TYPE GRAVITATIONAL RADIATION OF SPACE ARRAYS

This paper touches upon gravitational radiant power and radiant angle distribution of space rectangular lattice arrays of mass quadrupole oscillators, and gives analytic expression. The calculation show that these arrays can generate narrow gravitational radiation wave beam which has the best directional property. The travelling wave typegravitational radiation theory, developed by Seki and his colleagues, may be regarded as a specific case of the work in this paper and can be derived naturally. Under the codition of ideal ultrahigh frequency acoustic resonance and perfect travelling wave type synchronism intensification, an numerical example calculated with our method shows that energy flux density of gravitational radiation of optimum direction of space array which consists of 100 CaS crystals of 30×30×0.03 cm³ would amount to 2.84×10^-1 erg/cm²·s. This result shows the potentiality of crystal space arrays exciting high-frequency gravitational radiation.