Nuclear resonant X-ray optics by the use of synchrotron radiation

利用同步加速器辐射的核共振 X 射线光学

• 批准号: 04102001
• 负责人: KIKUTA Seishi
• 金额: $ 133.12万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Specially Promoted Research
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-04102001/
• 关键词: nuclear resonant scattering; synchrotron radiation; time spectrum; Mossbauer spectroscopy; quantum beat; hyperfine interaction; ultra-high monochromaticity; coherence; 核共鳴敬舌; 時間スベクトル; ディケイ・プロファイル; ヘマタイト結晶; 量子ビート

Studies on nuclear resonant scattering by the use of ultra-intense synchrotron ragiation were carried out. Main achievements of these studies are as follows. (1) A New type of monochromator composed of separated four silicon crystals was completed from which an X-ray beam with a band width of a few meV was obtained. In addition a variable energynuclear monochromator was designed and constructed in which the energy of the reflected beam could be scanned by a Doppler motion of the monochromator under the diffraction condition. (2) A time spectrum of nuclear Bragg scattering from ^<57>Fe_2O_3 was observed in a time range extending over 1mus. Using the quantum beat in the decay curve the values of the hyperfine structure parameters of ^<57>Fe were determined. (3) A time spectrum of coherent nuclear forward scattering from a ^<119>Sn-beta tin foil was observed. A time spectum of incoherernt nuclear resonant scattering at a high scattering angle was also observed where a decay time was nearl … More y equal to that of an isolated nucleus. (4) Nuclear forward scattering of ^<169>Tm from a ^<169>TmFeO_3 crystal were obtained. (5) X-ray inelastic scatterin from a silicon crystal oscillated piezo-electrically was analyzed by using the nuclear resonant scattering as a probe beam. (6) X-ray stroboscopic topography was used for the direct observation of magneto-elastic waves in a FeBO_3 crystal to which a RF magnetic field was applied. (7) Time domain Mossbauer spectroscopic studies of pressure-induced transition in SrFeO_3 were performed using a daiamond anvil cell under an external magnetic field. (8) Interferometric studies were made by inserting a Doppler-oscillated nuclear scatterer to a path of an interferometer. (9) An X-ray interferometer with different optical paths was realized by the use of the nuclear scattered beam having a long coherence length. (10) Nuclear excitation of ^<57>Fe nuclei in a liquid was observed for the first time. Here the energy loss due to recoil was compensated by the broad band of synchrotron radiation. (11) Nuclear resonant scattering accompanied by phonon excitaion was observed for the first time by using an ^<57>Fe-iron foil. Less

本文用同步辐射超强辐射研究了核共振散射。这些研究的主要成果如下。(1)研制了一种由四块硅晶体组成的新型单色器，获得了几毫电子伏的X射线束。此外，还设计并制作了一台可变能量核单色器，在衍射条件下，利用单色器的多普勒运动扫描反射光束的能量。(2)在<57>超过1 μ s的时间范围内观察到了^Fe_2O_3的核布拉格散射时间谱。利用衰变曲线中的量子拍频确定了^ Fe的超精细结构参数<57>。(3)观测了Sn-β锡箔的相干核前向散射时间谱<119>。在大散射角下还观察到了非相干核共振散射的时间谱，其衰变时间约为 ...更多信息 y等于一个孤立的原子核。(4)本文报道了^<169>Tm在^<169>TmFeO_3晶体上的核前向散射。(5)用核共振散射作为探测光束，分析了压电振荡硅晶体的X射线非弹性散射。(6)用X射线频闪形貌术直接观测了射频磁场作用下FeBO_3晶体中的磁弹性波。(7)本文用外磁场下的金刚石对顶砧对SrFeO_3的压致跃迁进行了时域穆斯堡尔谱研究。(8)干涉研究是通过在干涉仪的路径上插入多普勒振荡的核散射体来进行的。(9)利用具有长相干长度的核散射光束实现了一种不同光路的X射线干涉仪。(10)首次<57>观察到液态~ 1Fe核的核激发。在这里，由于反冲的能量损失被同步辐射的宽带补偿。(11)用Fe-铁箔首次观察到了伴有声子激发的核共振散射<57>。少

项目成果

C.K.Suzuki: "High perfection a-^<57>Fe203 crystals for nuclear Bragg scattering" Rev.Sci.Instrum.63. 1206-1209 (1992)

C.K.Suzuki：“用于核布拉格散射的高完美a-^<57>Fe2O3晶体”Rev.Sci.Instrum.63。

V.V.Aristov: "Focusing properties of a linear-phase Bragg-Fresnel lens" Jpn.J.Appl.Phys.31. 2616-2620 (1992)

V.V.Aristov：“线性相位布拉格菲涅耳透镜的聚焦特性”Jpn.J.Appl.Phys.31。

K.Huchigami: "Development of ultra-high resolution X-ray energy shifter" Report of High Intensity X-ray (1992-1993) (Japanese). 7. 20-25

K.Huchigami：“超高分辨率X射线能量转换器的开发”高强度X射线报告（1992-1993）（日文）。

K.Hirano: "Transmission-type X-Ray phase retarder using Ge crystal in Laue diffraction geometry" Jpn.J.Appl.Phys.33. L689-L692 (1994)

K.Hirano：“在劳厄衍射几何中使用 Ge 晶体的透射型 X 射线相位延迟器”Jpn.J.Appl.Phys.33。

M.Ando: "Invitation to Synchrotron Radiation Science Tentatively Using the TRISTAN Main Ring as a Super Light Source" BUTSURI. 50 (Japanese). 15-20 (1995)

M.Ando：“邀请同步辐射科学尝试使用 TRISTAN 主环作为超级光源”BUTSURI。