Three-dimensional internal structures in the permanent magnets extracted from small-angle neutron scattering patterns

2015 Fiscal Year Final Research Report

• Project/Area Number: 25390136
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Quantum beam science
• Research Institution: Japan Atomic Energy Agency
• Principal Investigator: TAKEDA Masayasu 国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 量子ビーム応用研究センター, 副センター長 (70222099)
• Co-Investigator(Renkei-kenkyūsha): SUZUKI Jun-ich 一般財団法人 総合科学研究機構, 東海事業センター 利用研究促進部, 利用研究促進部長 (40354899) ; YAMAGUCHI Daisuke 国立研究開発法人 日本原子力研究開発機構, 原子力科学研究部門 量子ビーム応用研究センター, 研究副主幹 (60370483)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 中性子小角散乱 / 解析ソフトウエア / 3次元実空間像

Outline of Final Research Achievements

We developed an analysis software of three-dimensional (3D) internal structures of the sintered permanent magnets extracting the two-dimensional (2D) small-angle neutron scattering (SANS) pattern. The 3D structures cannot be directly extracted from the SANS pattern because of so-called phase problem. Therefore, a 3D structure is modeled by several structural parameters, and then the model is fourier transformed into the SANS pattern. This pattern is compared with a real pattern obtained by SANS measurements. The first version of the software was released though it will be further improved in future.

Free Research Field

中性子散乱法による物性研究