Development of analysis method of X-ray circular dichroism onmagnetic resonance excitation using a high power terahertz radiation in high magnetic field

高磁场下高功率太赫兹辐射磁共振激发X射线圆二色性分析方法的发展

• 批准号: 23656236
• 负责人: IDEHARA Toshitaka
• 金额: $ 2.5万
• 依托单位: University of Fukui
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23656236/
• 关键词: テラヘルツ光; X線円二色法; 磁気共鳴; ジャイロトロン; 国際研究者交流、フランス; ESR計測; YAGレーザー; 2次高調波動作

Measurement with high time resolution on excitation process of magnetic resonance phenomenon in THz frequency region is important for analysis of basic behavior of material in high magnetic field. In this research subject, a high power THz radiation generated by a stable THz radiation source- gyrotron is irradiated on the sample installed in the high magnetic field and the behavior of the sample is analyzed by an X-ray circular dichroism with high time resolution. Obtained results are as follows, 1) Using a THz radiation source-Gyrotron FU II developed in University of Fukui and an ESR device installed in the European Synchrotron Radiation Facility (ESRF) in Grunoble, France, we have carried out successfully the operation test of the measurement device with high time resolution for analysis of excitation process of magnetic resonance by use of an X-ray circular dichroism. We are intending to advance the application of the developed device to material science in the world. In addition, we will develop the device further to higher frequency region and combined quantum beam technology between an X-ray and a THz radiation beam.

在THZ频率区域中磁共振现象的激发过程的高时间分辨率的测量对于分析高磁场中材料的基本行为很重要。在这项研究主题中，由稳定的THZ辐射源产生的高功率THZ辐射在安装在高磁场中的样品上受照射，并通过具有高时间分辨率的X射线圆形二色性分析样品的行为。获得的结果如下，1）使用福克大学开发的THZ辐射源 - 埃及福也是福克斯福音fu II，以及在法国Grunoble的欧洲同步加速器辐射设施（ESRF）中安装的ESR设备，我们已经成功地进行了操作测试具有较高时间分辨率的测量装置，用于分析磁共振激发过程，通过使用X射线圆形二色性。我们打算将开发设备应用于世界材料科学的应用。此外，我们将在X射线和THZ辐射梁之间进一步开发到更高频率区域并组合量子束技术。

项目成果

Application of Continuously Frequency-Tunable 0.4 THz Gyrotron to Dynamic Nuclear Polarization for 600 MHz Solid-State NMR

• DOI: 10.1007/s10762-012-9890-1
• 发表时间: 2012-07-01
• 期刊: JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES
• 影响因子: 2.9
• 作者: Matsuki, Yoh;Ueda, Keisuke;Fujiwara, Toshimichi
• 通讯作者: Fujiwara, Toshimichi

Development of sub-terahertz gyrotrons for novel applications

• DOI: 10.1109/irmmw-thz.2011.6105098
• 发表时间: 2011-12
• 期刊: 2011 International Conference on Infrared, Millimeter, and Terahertz Waves
• 作者: S. Sabchevski;T. Idehara

High power terahertz technologies Opened by High Power Radiation Sources-Gyrotron FU CW Series

高功率辐射源开启的高功率太赫兹技术-Gyrotron FU CW系列

• 发表时间: 2011
• 作者: T. Idehara;Torii;Y.Fujii;I. Ogawa;T.Saito; T.Fujiwara;T.Suehara and R.Dupree
• 通讯作者: T.Suehara and R.Dupree

X-ray Detected Magnetic Resonance at sub-THz Frequency Using a High Power Gyrotron Source, J

使用高功率回旋管源 J 的亚太赫兹频率 X 射线检测磁共振

• 发表时间: 2012
• 期刊: Infrared, Millimeter and Terahertz Waves
• 作者: A. Rogalev;J. Goulon;T;Idehara;I.Ogawa
• 通讯作者: I.Ogawa

Direct measurement of Positronium HyperFine Structure: A New horizon of Precision Spectroscopy using Gyrotrons S.Asai · T.Yamazaki · A

正电子超精细结构的直接测量：使用回旋管的精密光谱学的新视野 S.Asai·T.Yamazaki·A

• 发表时间: 2012
• 期刊: J Infrared Milli Terahz Waves
• 作者: Fumitaka Horii;Toshitaka Idehara,1 Yutaka Fujii;Isamu Ogawa;Akifumi Horii;George Entzminger;and F. David Doty;S.Asai · T.Yamazaki · A.Miyazaki · T.Suehara · T.Namba · T.Kobayashi · H.Saito · T.Idehara · I.Ogawa · S.Sabchevski
• 通讯作者: S.Asai · T.Yamazaki · A.Miyazaki · T.Suehara · T.Namba · T.Kobayashi · H.Saito · T.Idehara · I.Ogawa · S.Sabchevski