In-situ TEM observation of nano-dynamics to point defects in crystals by a ultra high-speed CCD camera

2006年，我们利用高速摄影仪研究了SiC/SiC复合材料辐照缺陷和裂纹扩展的纳米动力学。总结了近三年来的瞬变电磁观测成果。我们最初目的的完成可能达到70%，但我认为我已经足够阐明本研究的目的。此外，在德国，基于脉冲激光照射靶的新思想，开发了脉冲电子光源，并产生了高强度的电子。美国研制出一种新型电子显微镜，他们改进了这种电子源，把普通电子显微镜的电子枪改为电子枪，并且在2006年9月在札幌举行的国际显微镜大会上进行了报道。由于已经对材料科学的一些主题进行了研究，并且有口碑和海报公告，因此该研究的国际定位变得清晰。在这项研究中，我们使用了一般的热电子源和场发射电子源，然而，对于美国的设备，脉冲电子源使用。我们的目标是通过高速CCD相机记录一系列事件，但美国团队的目标是通过脉冲电子源记录每个现象作为频闪图像，以了解一系列高速现象。然而，在我们的方法中，知道某种现象的开始是有利的，并且在上述会议中预期了未来的发展。我们在这项研究中探索了一个新的研究领域，我们将在未来继续进行这项研究，并应能够通过上述新项目继续进行。此外，由于通过本研究发现了过去三年的新问题，可以为下一个项目进行反思。

In 2006, We investigated nano dynamics about irradiation defects and crack propagation of SiC/SiC composite material by a high-speed camera. Furthermore, we summarized results of in-situ TEM observation in the past three years. Accomplishment of our original purpose may be reached up to 70%, but it is thought that I clarified the purpose of this study enough. In addition, development of a pulse electron source of light to be based on a new idea by pulsed laser irradiation to a target in Germany, and to generate the electron which was high strength was done. The new electron microscope which they improved this electronic source and changed for electron gun of a normal electron microscope was developed in U.S.A., and it was reported in an international microscope congress held in Sapporo in September, 2006. Because a study was already made about some topics of materials science, and there were word of mouth and announcement with a poster, positioning of international of this study became clear. In this study, we used a general thermo electron source and a field emission electron source, however, for the American device, a pulsed electron source used. We aimed to record a series of events by a high speed CCD camera, but American team aimed to record an each phenomenon by a pulsed electron source as a strobe image to understand a series of high speed phenomena. However, it was advantage in our method to know the initiation of a certain phenomenon, and future development was expected in the above conference. We explored a new research field in this study and we will continue it in future and should be able to go ahead through a new project as mentioned above. In addition, because new issues were found through this study for the past three years, could reflect for the next project.