权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Development of 3-D DX-ray Analytical Microscope and micro-nano analysis under actual environment

3D DX射线分析显微镜及实际环境下微纳分析的研制

基本信息

批准号：
15350048
负责人：
TSUJI Kouichi
金额：
$ 9.66万
依托单位：
Osaka City University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2004
项目状态：
已结题

项目摘要

By using a polycapillary x-ray lens, micro-XRF instrument was developed. This polycapillary x-ray lens enables us make a micro x-ray beam of about several tens micro meters, leading to elemental analysis of micro region. Using this instrument, following research subjects were studied :1) Elemental x-ray mapping with changeable areaThe spot size obtained by polycapillary lens critically depends on distance from the output end of the lens. Therefore, it is possible to change the spot size by changing the distance from the lens. Thus, we proposed that a large area could be measured a large spot size, while a small area could be measured by a small spot size. BY using this technique, a total measuring time could be reduce,2) Elemental mapping of quinoa seedXRF has unique advantages : non-destructive elemental analysis at ambient air pressure (that is, high vacuum conditions are not required). This advantages are very helpful for analysis of living sample, because the living sample cannot be installed in vacuum condition. Thus, we took the x-ray elemental maps for quinoa seed at ambient air pressure during growth. The seed was put on the cotton on the sample holder, whose end was put into the water tank ; therefore, the seed could grow up during the x-ray measurement. As a result, it was found that K moved from the seed to stem, while Ca still remained in the seed during the growth.3) Combination of micro XRF with AFMAFM (atomic force microscope) enables us take surface morphology with atomic level ; however, it is difficult to take chemical information, that is, distinguish of elements. Therefore, it is very attractive to combine AFM and XRF. Actually, we demonstrated that the combined instrument worked well.4) 3-D XRF instrumentWe prepared two polycapillalry lens for excitation and detection. By adjusting the focusing points of two lens exactly at one position, it is possible to analyze a small region in 3 dimensional space. We have investigated this technique.

利用多毛细管X射线透镜研制了微区X射线荧光光谱仪。这种多毛细管X射线透镜使我们能够产生大约几十微米的微X射线束，从而导致微区域的元素分析。利用该仪器，研究了以下研究课题：1）可变面积的元素X射线成像多毛细管透镜获得的光点大小关键取决于距透镜输出端的距离。因此，可以通过改变距透镜的距离来改变光斑尺寸。因此，我们提出了一个大的面积可以测量一个大的光斑尺寸，而一个小的面积可以测量一个小的光斑尺寸。通过使用这种技术，可以减少总的测量时间。2）藜麦种子的元素图谱具有独特的优势：在环境空气压力下（即不需要高真空条件）的非破坏性元素分析。这一优点对于活体样品的分析非常有帮助，因为活体样品不能安装在真空条件下。因此，我们在生长过程中的环境空气压力下的藜麦种子的x射线元素图。将种子放在样品保持器上的棉花上，样品保持器的端部放入水箱中;因此，种子可以在X射线测量期间生长。结果表明，在生长过程中，K从种子向茎中迁移，而Ca仍保留在种子中。3）显微XRF与AFMAFM（原子力显微镜）的结合使我们能够从原子水平上获取表面形貌，但很难获取化学信息，即元素的区分。因此，将联合收割机与X射线荧光光谱技术结合起来是非常有吸引力的。实际上，我们证明了组合仪器工作良好。4）三维XRF仪器我们制备了两个多毛细管透镜用于激发和检测。通过将两个透镜的焦点精确地调整在一个位置，可以分析三维空间中的小区域。我们研究了这项技术。

项目成果

期刊论文数量（68）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Micro-Trace X-ray Analysis -Development of Grazing-Exit-Micro X-Ray Fluorescence (GE-□-XRF) in Combination with Atomic Force Microscope (AFM)-

微量X射线分析 -与原子力显微镜（AFM）相结合的掠射式微量X射线荧光（GE-□-XRF）的开发-

DOI：
发表时间：
2004
期刊：
The proceedings of the 12^<th> Osaka City University, International Symposium, 27-29 October, 2004
影响因子：
0
作者：
X.Peng;N.Aratani;A.Takagi;T.Matsumoto;T.Kawai;I.-W.Hwang;T.K.Ahn;D.Kim;A.Osuka;K.Tsuji
通讯作者：
K.Tsuji

辻幸一, 早川慎二郎: "微小部X線分析"理学電機ジャーナル. (印刷中). (2004)

Koichi Tsuji、Shinjiro Hayakawa：“显微 X 射线分析”Rigaku Denki Journal（出版中）。