PROJECT RESEARCH ON JAPANESE NATIONAL LARGE TELESCOPE AND ITS OBSERVATIONAL INSTRUMENT

对建造8米级望远镜的各种项目的现状以及大型望远镜及其观测仪器制造的最新发展和专业知识进行了调查，并用于指定和改进JNLT的当前设计概念。个人成绩如下：1.对JNLT的施工现场进行了土壤调查，以提供测量数据来指定望远镜的支撑结构。2.调查了在莫纳克亚山顶部建造JNLT的法律的程序。3.通过对7.5m镜坯制备现状的调查，验证了该方法的可行性。4.对目前7.5米镜面的加工工艺进行了研究，结果表明，该工艺是完全可行的。5.主动光学系统作为JNLT技术的主要创新被证明是实际可行的工程研究的结果，使用原型模型。这一成就的结果已向世界电信界报告 ...更多信息 范围技术。6.针对JNLT跟踪系统的要求，研究了地平式望远镜的高精度跟踪控制问题。7.研究了光学干涉测量技术的发展，确定了JNLT干涉测量模式的测量方案。8.观测仪器的新发展，介绍了弱目标光谱仪、近红外光谱仪和自适应光学系统。这些信息用于改进这些仪器的当前计划。9.对世界上最大的国际天文台莫纳克亚、拉西拉和拉帕尔马的设施和运营和发展计划进行了调查，以优化JNLT及其基础设施的建设计划。10.为提高主镜支撑系统的稳定性，分析了风载荷对主镜的影响。11.针对现代望远镜的特点，研究了大开口望远镜罩的新设计理念，并对JNLT望远镜罩进行了深入的热设计研究。12.该研究计划取得的一些科学成果已在新技术光学望远镜国际会议上报告。少

Present status of various projects to construct 8m-class telescopes as well as the state-of-the-art developments and expertises in fabrication of large telescopes and their observational instruments were investigated and were used to specify and improve the current design concepts of JNLT. Individual achievements were as follows.1. Soil survey of the construction site for JNLT was carried out to provide measured data to specify the support structure of the telescope. 2. Legal procedures to construct JNLT a top of Mauna Kea were surveyed. 3. Current status of fabricating 7.5m mirror blank was investigated to verify the feasibility. 4. Current expetise of figuring the 7.5m mirror surface was investigated and was shown to be quite feasible. 5. The active optics system as the primary innovation of the JNLT technology was shown to be practically feasible by the results of an engineering study using a protype model. The results of this achievement were reported to the world community of tele … More scope technology. 6. High precision tracking control of alt-azimuth mount telescopes was investigated to specify the requirements for JNLT tracking system. 7. Developments of optical interferometry were investigated to define instrumentation plan for JNLT interferometric mode. 8. New developments of observational instruments, e.g., faint object spectrogrogh, near-infrared spectrograph and adaptive optics system were surveyed. These informations were used to improve the current plans for these instrumentations. 9. The facilities and the plans for operation and development of the world largest international observatories, Mauna Kea, La Silla,and La Palma were surveyed to optimize the construction plan for JNLT and its infrastructure. 10. The effects of wind loading as primary mirror was analyzed to improve the stability of the mirror support system. 11. New design concepts for wide opening telescope domes developed for modern telescopes were investigated and intensive thermal design study of JNLT dome enclosure was carried out. 12. Some of the scientific results achieved by this Research Program were reported at the international conference on New Technology Optical Telescopes. Less