Study of Properties of Simulated Cosmic Matters after Cosmic Irradiation

模拟宇宙物质经宇宙辐照后的性质研究

• 批准号: 15540384
• 负责人: KOIKE Kazuo
• 金额: $ 1.92万
• 依托单位: Kagawa University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15540384/
• 关键词: Simulated Cosmic Matter; Extended Red Emission; forsterite; Neutron beam; Gamma-ray; LINAC; Majorana構成子模型

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.

已知星际和星际物质会受到宇宙辐射和几种类型的宇宙射线粒子的强烈照射。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。特别是比较了伽马射线和中子辐照后的热释光光谱小心。结果表明，中子辐照后的热释光明显出现在蓝色区域的波长内。并对其周围的一些问题进行了研究。 今年，我们在《行星与空间科学》杂志上发表了模拟宇宙物质辐照后热释光的研究摘要之一。此外，我们还研究了辐射对模拟宇宙物质的影响。特别是，我们利用直线加速器研究了结晶硅酸盐的辐照效果。然而，由于最近修改的直线加速器的一些不稳定，仍然存在一些进一步的问题。我们还研究了可能通过宇宙射线照射形成微量元素和精细结构的问题，或者进一步研究宇宙粒子的基本结构。

项目成果

On the Weak Decay of Composite System based on Majorana Partners

基于Majorana Partners的复合系统弱衰变

• 发表时间: 2004
• 期刊: E-print arXiv hep-ph/0412375 0412-375
• 作者: M.Aoki;K.Koike
• 通讯作者: K.Koike

K.Koike et al.: "Irradiation Effect on Simulated Cosmic Dust in Infrared Region"KURRI Progress Report. 2002. 75 (2003)

K.Koike 等人：“红外区域模拟宇宙尘埃的辐射效应”KURRI 进展报告。

K.Koike et al.: "Photo-Luminescence and Possible Forsterite nanoparticle Model of Extended Red Emission"E-Print Archive astro-ph. 04-0345. 1-5 (2004)

K.Koike 等人：“光致发光和可能的镁橄榄石纳米颗粒模型的扩展红色发射”E-Print Archive astro-ph。

Irradiation of Electron-beam and Amorphization of Simulated Cosmic Matter

电子束辐照与模拟宇宙物质的非晶化

• 发表时间: 2004
• 期刊: KURRI Progress Report 2003 Prog.Rep2003
• 作者: K.Koike;M.Nakagawa;C.Koike;H.Chihara;M.Okada
• 通讯作者: M.Okada

Proton Decay and Sub-Structure

质子衰变和亚结构

• 发表时间: 2006
• 期刊: E-Print Archive hep-ph 0601153
• 作者: H.Taniguchi;Y.Morita;Y.Hatsugai;K.Koike
• 通讯作者: K.Koike