Three-electron-wave interference method for direct observation of electromagnetic micro-fields

直接观测电磁微场的三电子波干涉法

• 批准号: 09650029
• 负责人: OHSHITA Akinori
• 金额: $ 1.54万
• 依托单位: MIE UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09650029/
• 关键词: electron biprism; three-electron-wave interference; phase measurement; barium ferrite; interference pattern; electric field; magnetic field; equal-phase line; 干渉; 3波干渉

1. Computer simulation method of three-electron-wave interference patterns is established.2. Three-electron-wave interference patterns are simulated for the electric field generated by a uniformly charged latex sphere on a thin carbon film. Comparison of the simulated patterns with the experimental one enables us to estimate the amount of electric charge.3. Three-electron-wave interference patterns are simulated for the magnetic field produced by a magnetic dipole.4. Three-electron-wave interference patterns are simulated for a magnetic field around a single magnetic-domain particle of barium ferrite. The magnetic field is modeled by a magnetic dipole. The simulated patterns are compared with the interference micrograph obtained by T.Hirayama et al, and the density of the magnetic flux originating from the barium feritte is determined. The computer simulations allow us to extract the reliable quantitative information from thee xperimental three-wave interference patterns.5. The direct observation method of electromagnetic micro-fields with an electron biprism is proposed. This interference method is simpler and more effective than the three-wave interference one.

1.建立了三电子波干涉图样的计算机模拟方法.模拟了均匀带电乳胶球在碳薄膜上产生的电场的三电子波干涉图样。比较模拟图案与实验图案，使我们能够估计电荷量。模拟了磁偶极子产生的磁场的三电子波干涉图样.模拟了钡铁氧体单磁畴粒子周围磁场的三电子波干涉图样。磁场由磁偶极子模拟。模拟的图案与平山等人获得的干涉显微照片进行了比较，并确定了来自钡铁氧体的磁通密度。计算机模拟使我们能够从实验三波干涉图样中提取可靠的定量信息.提出了用电子双棱镜直接观测电磁微场的方法。这种干涉法比三波干涉法简单有效。

项目成果

Toshiyuki Yokota and Akinori Ohshita: "Computer simulation of three-electron-wave interference patterns (II)" Record of 1997 Tokai-section joint confer.of the seven institutes of electrical and related engineers. 184 (1997)

Toshiyuki Yokota和Akinori Ohshita：“三电子波干涉图案的计算机模拟（II）”1997年东海部门七所电气及相关工程师联合会议记录。

大下昭憲,鏑木泉: "ミクロな電磁場の直接観察" 平成10年度電気関係学会東海支部連合大会講演論文集. 171 (1998)

Akinori Oshita、Izumi Kaburagi：“微观电磁场的直接观察”1998 年电气协会东海分会会议记录 171 (1998)。

鏑木泉, 大下昭憲: "3電子波干渉法の計算機シミュレーション(III)" 平成10年度電気関係学会東海支部連合大会講演論文集. 180 (1998)

Izumi Kaburagi，Akinori Oshita：“三电子波干涉方法的计算机模拟（III）”1998年电气工程学会东海分会会议记录180（1998）。

Izumi Kaburagi and Akinori Ohshita: "Computer simulation of three-electron-wave interference patterns-Magnetic field around a barium ferrite particle-" Proc.55th Annunal Meeting of the Japanese Society of Electron Microscopy. (in print). (1999)

Izumi Kaburagi 和 Akinori Ohshita：“三电子波干涉图案的计算机模拟 - 钡铁氧体颗粒周围的磁场 -”日本电子显微镜学会第 55 届年会 Proc.

横田稔征, 鏑木泉, 大下昭憲: "3電子波干渉パターンの計算機シミュレーション" 日本電子顕微鏡学会第54回学術講演会発表要旨集. 103 (1998)

Minoruyuki Yokota、Izumi Kaburagi、Akinori Oshita：“三种电子波干涉图案的计算机模拟”日本电子显微镜学会第 54 届学术会议摘要 103（1998）。