透過型電子顕微鏡における電子線と試料ー電磁ポテンシャルとの相互作用: 電子波の伝播に対する磁気ベクトルポテンシャルの影響などの新しい洞察

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DOI[10.15102/1394.00002407]to the data of the same series

透過型電子顕微鏡における電子線と試料ー電磁ポテンシャルとの相互作用: 電子波の伝播に対する磁気ベクトルポテンシャルの影響などの新しい洞察

Persistent ID (NDL): info:ndljp/pid/13801769

Material type: 博士論文

Author: Schreiber, Makoto

Publisher: -

Publication date: 2022-07-01

Material Format: Digital

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Name of awarding university/degree: Okinawa Institute of Science and Technology Graduate University,Doctor of Philosophy

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Note (General)：: The interaction between electrons with electromagnetic potentials is the basis for electron microscopy. To build electron microscopes and interpret th...

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Material Type: 博士論文
Title: 透過型電子顕微鏡における電子線と試料ー電磁ポテンシャルとの相互作用: 電子波の伝播に対する磁気ベクトルポテンシャルの影響などの新しい洞察
Author/Editor: Schreiber, Makoto
Author Heading: Schreiber, Makoto
Publication Date: 2022-07-01
Publication Date (W3CDTF): 2022-07-01
Alternative Title: Diffraction-Based Experiments in Transmission Electron Microscopy: Lensing, Charging, and Amorphous Structures
Degree grantor/type: Okinawa Institute of Science and Technology Graduate University
Date Granted: 2022-07-01
Date Granted (W3CDTF): 2022-07-01
Dissertation Number: 甲第95号
Degree Type: Doctor of Philosophy
Text Language Code: eng
Target Audience: 一般
Note (General): The interaction between electrons with electromagnetic potentials is the basis for electron microscopy. To build electron microscopes and interpret the data collected through them, it is necessary to understand how electrons are influenced by potentials and how they influence the potentials within samples. By further understanding the information encoded in an electron wave after passing through a sample, new techniques for analyzing materials can be developed. Here, several methods to extend the capabilities of electron microscopy are proposed. It is demonstrated that a new form of electromagnetic lens can be produced by a torus-shaped lens with a poloidal current flow. The lensing effect is due to the magnetic vector potential in the absence of electromagnetic fields and can produce convex and concave lensing. The dynamics of charge buildup on insulating samples from the moment they are exposed to an electron beam are measured. These measurements reveal a non-uniform charge distribution in the illuminated area whose temporal development is dose-rate dependent. These results may be used to improve the resolution achievable in protein structure reconstructions. Finally, a new method to experimentally determine the structure of dominant short-range order structural motifs in amorphous materials is explored.
DOI: 10.15102/1394.00002407
https://doi.org/10.15102/1394.00002407
Persistent ID (NDL): info:ndljp/pid/13801769
https://dl.ndl.go.jp/pid/13801769
Collection: 障害者向け資料
Collection (Materials For Handicapped People:1): テキストデータ
Collection (particular): 国立国会図書館デジタルコレクション > デジタル化資料 > 博士論文
https://dl.ndl.go.jp/collections/A00014
Acquisition Basis: 博士論文（自動収集）
Date Accepted (W3CDTF): 2024-11-12T17:29:41+09:00
Format (IMT): application/pdf
Access Restrictions: 国立国会図書館内限定公開
Service for the Digitized Contents Transmission Service: 図書館・個人送信対象外
Availability of remote photoduplication service: 可
Periodical Title (URI): https://doi.org/10.15102/1394.00002407
https://oist.repo.nii.ac.jp/records/2668
Data Provider (Database): 国立国会図書館 : 国立国会図書館デジタルコレクション
https://dl.ndl.go.jp