Development of isotope microscope for proto-solar system survey

用于原太阳系调查的同位素显微镜的研制

• 批准号: 06554021
• 负责人: YURIMOTO Hisayoshi
• 金额: $ 5.12万
• 依托单位: Tokyo Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research (B)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-06554021/
• 关键词: Isotope microscope; Solid-state device; Ion beam; Charged particle; Secondary ion mass spectrometry; Meteovite; イオン検出素子; 半導体素子; 二次イオン質量分析; 同位体; 微量元素; 二次元分析

A novel solid-state area detector for charged particles has been developed in this study. The detector called AMI is based on semiconduct or theory for Si substrate. Pixel electrodes for bombardment of ions and electrons with the energy from eV to keV were deposited on the semiconductor device A prote-type model of isotope microscope has also been developed. The isotope microscope is combination system of the AMI detector with stigmatic secondary ion mass spectrometer.The isotope microscope applied to the study of isotope imaging of solid sample. Spatial resolution of the image achieved to 1 mum. The image size is 512 (H) x 250 (V) pixels. Dynamic range of one pixel is four orders of magnitude. The imaging area is controlled by zooming system of the mass spectrometer. The zooming area is over the range of 25 to 400 mum. We are planning to get isotope ratio image of meteoritic materials. The isotope image may make clear the origin and evolution of the solar system and planets. The AMI detector and isotope microscope are also effective tool for material sciences and high energy physics.

本研究开发了一种新型带电粒子固态区域探测器。称为 AMI 的探测器基于半导体或硅衬底理论。在半导体器件上沉积了用于轰击 eV 至 keV 能量的离子和电子的像素电极。还开发了同位素显微镜的原型模型。同位素显微镜是AMI探测器与斑二次离子质谱仪的组合系统。同位素显微镜应用于固体样品的同位素成像研究。图像的空间分辨率达到1μm。图像尺寸为 512 (H) x 250 (V) 像素。一个像素的动态范围是四个数量级。成像区域由质谱仪的变焦系统控制。缩放范围为25至400μm。我们计划获取陨石材料的同位素比图像。同位素图像可以阐明太阳系和行星的起源和演化。 AMI探测器和同位素显微镜也是材料科学和高能物理的有效工具。

项目成果

圦本尚義: "国体惑星科学の基礎的手法と応用。イオンマイクロプローブ" サイエンスハウス, 229 (1994)

Naoyoshi Hajimoto：“国家行星科学的基本方法和应用。离子微探针”《科学之家》，229（1994）

Yurimoto,H.: "In-situ oxygen isotope analysis by SIMS." U.S.Geological Survey Circular. 1107. 363 (1994)

Yurimoto,H.：“通过 SIMS 进行原位氧同位素分析。”

Yurimoto,H.: "Oxygen isotope distribution in Allende CAI." Lunar Planet.Sci.XXV. 25. 1539-1540 (1994)

Yurimoto,H.：“阿连德 CAI 中的氧同位素分布。”

Inoue,T.,Yurimoto,H.and Kudoh,H.: "Hydrous modified spinel,Mgl.75SiHO 504 : a new water reservoir in the mantle transition region" Geophy.Res.Lett.22. 117-120 (1995)

Inoue,T.,Yurimoto,H.和Kudoh,H.：“含水改性尖晶石，Mgl.75SiHO 504：地幔过渡区的新水库”Geophy.Res.Lett.22。

Nagasawa,H.,Yurimoto,H.and Morioka,M.: "Hf-Zr interdiffasion in single crystal Zircon II : determination by back-scatterd electron image." Geochem.J.29. 155-161 (1995)

Nagasawa,H.、Yurimoto,H. 和 Morioka,M.：“单晶锆石 II 中的 Hf-Zr 互扩散：通过背散射电子图像测定。”