Development of high resolution in-situ electric field observation system in a transmission electron microscope

透射电子显微镜高分辨率原位电场观察系统的研制

• 批准号: 21360307
• 负责人: SASAKI Katsuhiro
• 金额: $ 10.15万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21360307/
• 关键词: 表面; 界面; 粒界物性; 幾何光学; 電子光学; 粒界; 電子工学

A new method to visualize the electric and magnetic field in a transmission electron microscope named" Shadow Image Distortion" method which was invented by the author was modified in spatial resolution in order to be applicable for the nanoscale specimen. A new type of aperture and a computer software which obtained the digital image by using a CCD camera and analyze it automatically were developed. Highest spatial resolution and fastest analysis time were obtained to be 74 nm and 20 sec, respectively. Refinement of the theory using the geometrical electron optics gave the method to control the sensitivity and image magnification separately with the current applied to the condenser and objective lens of the transmission electron microscope. Also the method was found to be applicable to a high voltage electron microscope and the sensitivity was determined to be in the same order of a medium voltage electron microscope.

本文对作者提出的透射电子显微镜电场和磁场显示的新方法--”阴影像畸变法”进行了空间分辨率的改进，使之适用于纳米样品。研制了一种新型的光阑，并开发了一套利用CCD摄像机获取数字图像并进行自动分析的计算机软件。最高的空间分辨率和最快的分析时间分别为74 nm和20 sec。用几何电子光学理论对透射电子显微镜的灵敏度和像放大率进行了理论上的改进，给出了用电流分别控制透射电子显微镜的聚光镜和物镜透镜的方法。该方法也适用于高压电子显微镜，其灵敏度与中压电子显微镜相同。

项目成果

In-situ Heating Experiment of the Micro-Sampled Specimen using Kamino-Saka Heating Holde

Kamino-Saka 加热支架对微量样品的原位加热实验

• 发表时间: 2010
• 期刊: Proc.17th Int.Cong.Microsc
• 作者: K.Sasaki;K.Kuroda;T.Tokunaga;S.Arai;C.Morita
• 通讯作者: C.Morita

In-situ Cross-sectional Observation of Solid-Liquid Interface

固液界面的原位截面观察

• 发表时间: 2012
• 期刊: Conference proceedings APMC 10
• 作者: K.Sasaki;M.Hattori;S.Arai;N.Tanaka;K.Kuroda;T.Yamamoto
• 通讯作者: T.Yamamoto

Geometrical Electron Optics of the Shadow Image Distortion Method in a Transmission Electron Microscope

透射电子显微镜中阴影图像畸变方法的几何电子光学

• 发表时间: 2010
• 期刊: International Journal of Advanced Microscopy and Theoretical Calculations Letters
• 作者: Katsuhiro Sasaki;Nobuyuki Tanaka;Hiroto Mori;Hidekazu Murata;Chiaki Morita;Hiroshi Shimoyama;Kotaro Kuroda
• 通讯作者: Kotaro Kuroda

TEM studies of nanostructure in melt-spun Mg-Ni-La alloy manifesting enhanced hydrogen desorbing kinetics

• DOI: 10.1016/j.jallcom.2008.11.031
• 发表时间: 2009-06-10
• 期刊: JOURNAL OF ALLOYS AND COMPOUNDS
• 影响因子: 6.2
• 作者: Tanaka, K.;Miwa, T.;Kuroda, K.
• 通讯作者: Kuroda, K.

金属融解・凝固・反応過程の透過電子顕微鏡内その場観察

使用透射电子显微镜原位观察金属熔化、凝固和反应过程

• 发表时间: 2011
• 作者: 佐々木勝寛;服部雅史;荒井重勇;徳永智春;田中信夫;山本剛久
• 通讯作者: 山本剛久