Study of Properties of Simulated Cosmic Matters after Cosmic Irradiation

星际和星周物质被宇宙辐射和几种类型的宇宙射线粒子强烈照射。研究了辐照对模拟星际和星周物质$rm CaCO_3$、$rm MgCO_3$、$rm SiO_2$和$rm AI-2O_3$的影响。特别比较了伽玛射线和中子辐照后的热释光光谱。结果表明，中子辐照后的热释光在蓝色区波长有明显的表现。此外，本文还对围绕它们的一些问题进行了探讨。今年，我们在《行星与空间科学》上发表了一篇关于模拟宇宙物质辐照后热释光的研究综述。此外，我们还研究了辐射对模拟宇宙物质的影响。特别地，我们利用LINAC对晶体硅酸盐的辐照效应进行了研究。然而，由于最近修订的LINAC的一些不稳定性，一些进一步的问题仍然存在。我们还研究了可能通过宇宙射线的照射形成微量元素和精细结构的问题，或进一步研究宇宙粒子的基本结构。

Interstellar and circumstellar matter is known to be strongly irradiated by cosmic radiation and several types of cosmic ray particles. The effects of irradiation on simulated interstellar and circumstellar matters such as $rm CaCO_3$, $rm MgCO_3$, $rm SiO_2$ and $rm AI-2O_3$ are investigated.In particular, thermoluminescence spectra after gamma-ray and neutron irradiation are compared carefully. It is shown that the thermoluminescence after neutron irradiation appears significantly in the wavelength of blue region. Furthermore, some problems around them are investigated.In this year, we have published one of the summaries of our research for thermoluminescence after irradiation on simulated cosmic-matter in Planetary and Space Science. Further, we have studied irradiation effects on simulated cosmic-matter. Especially, we have studied on irradiation effect of crystalline silicate by making use of LINAC. However, some further problems remain because of some instability of recently revised LINAC. We have also researched for possible problem concerning to formation of minor elements and fine structure through possible irradiation of cosmic rays, or further fundamental structure of cosmic particles.