Development of a neutron microscope using Wolter supermirror for magnetic imaging

2017 Fiscal Year Final Research Report

• Project/Area Number: 15H03593
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Quantum beam science
• Research Institution: Japan Atomic Energy Agency
• Principal Investigator: Soyama Kazuhiko 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 J－PARCセンター, 研究職 (90343912)
• Co-Investigator(Kenkyū-buntansha): 林田 洋寿 一般財団法人総合科学研究機構(総合科学研究センター(総合科学研究室)及び中性子科学センター(研究開発, 中性子科学センター, 副主任研究員 (50444477) ; 山村 和也 大阪大学, 工学研究科, 教授 (60240074)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 中性子顕微鏡 / 大気圧マイクロ波プラズマジェット / ウォルターミラー / スーパーミラー / イオンビームスパッタ法 / レプリカ法

Outline of Final Research Achievements

In order to realize a neuron microscope, we are developing Wolter type I supermirror as a magnetic imaging device that is a rotationally symmetric mirror consisting of an elliptical mirror followed by a hyperbolic mirror. In this study, NiC/Ti supermirror device is fabricated by demolding of the multilayer deposited on the surface of the high-precision mandrel. Figure error of the mandrel is corrected by numerically controlled plasma chemical vaporization machining (NC-PCVM) which can correct the figure error deterministically without forming subsurface damage.NC-PCVM had been used to correct the flatness and/or thickness distribution of the plane substrate with nanometer order accuracy. We achieved submicrometer order figure accuracy (230 nm) by applying NC-PCVM figure correction with compensation of surface temperature change caused by plasma irradiation. We found the parameters of the coating, electroforming and demolding processes on the self stand supermirror.

Free Research Field

中性子科学