Construction of Four-Dimensional Luminescence-Measuring System for Physico-Chemical Research of Solid Materials

固体材料物理化学研究四维发光测量系统的构建

基本信息

批准号：
14340231
负责人：
HASHIMOTO Tetsuo
金额：
$ 9.41万
依托单位：
Niigata University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2002
资助国家：
日本
起止时间：
2002 至 2004
项目状态：
已结题

项目摘要

Radiation-induced luminescence phenomena from natural white minerals, including quartz and feldspar, are not only available for the radiation dosimetry, but also for archaeological and geological dating purposes. In the latter case, the accumulated radiation doses are used because the doses are proportional to the ages after the last burning or sunlight exposure. In this project, the luminescence phenomena have been investigated from aspects of physico-chemical research tool of solid dielectric materials.A new instrumental system has been developed for four-dimensional luminescence measurements, involving luminescence intensity, wavelength of luminescence, heating temperatures, and positions, using 3-CCD video camera with high sensitivity of light detection. Finally the camera could photograph area of 10x10 mm by selecting suitable lens combination between dark box placed luminescent specimen and sensitive area of video-camera because the radiation-induced luminescence is extremely wea … More k intensity. One picture plane, consisting of 512x672 pixels and 12 bit data of RGB per one pixcel, was realized to be transferred into personal computer memory within 1 second, In the viewpoint of the elimination of dead time loss, the phographic procdure of 2 seconds for every picture was found to be preferable. The final video-camera data-numbers amounted to 350 Mbytes under thermoluminescence observation of every 2-second from 100 to 450℃.By using the compiled luminescence data on the memory, 100 pixcels were selected out from the CRT-surface picture and followed to the desirable analysis and mutual comparison with other pixcel area with respect of glowcurve-behavior of respective RGB-color regions. As a result, it was established that luminescent difference could be easily distinguished from the data-file, for example, between BTL-quartz grains and RTL-ones. This system was found to be very hopeful for the provenance search of soils and the detection of local lattice defects in dielectric material related to material ageing. Less

天然白色矿物（包括石英和长石）的辐射引起的发光现象不仅可用于辐射剂量测定，还可用于考古和地质年代测定的目的，在后一种情况下，使用累积的辐射剂量，因为剂量与在该项目中，从固体介电材料的物理化学研究工具的角度研究了发光现象。开发了一种新的四维发光测量仪器系统，涉及发光。确定发光强度、发光波长、加热温度和位置，使用具有高光检测灵敏度的3-CCD摄像机，通过在暗箱放置的发光样本和敏感区域之间选择合适的镜头组合，最终相机可以拍摄10x10 mm的区域。由于辐射引起的发光强度极弱，因此可以将一个图像平面（由 512x672 像素和每一个像素 12 位 RGB 数据组成）传输到个人计算机内存中。 1秒，从消除死区时间损失的角度来看，每张图片2秒的拍摄过程被发现是优选的，在每2秒的热释光观察下，最终摄像机数据量达到350Mbytes。 100至450℃。利用存储器上编译的发光数据，从CRT表面图像中选出100个像素，并进行所需的分析和相互比较与其他像素区域在各自 RGB 颜色区域的发光曲线行为方面进行比较，结果表明，可以从数据文件中轻松区分发光差异，例如 BTL 石英颗粒和 RTL 石英颗粒之间的发光差异。人们发现该系统对于土壤的来源搜索和与材料老化相关的介电材料中的局部晶格缺陷的检测非常有希望。

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）

Tetsuo Hashimoto: "An automatic system for both red/blue thermoluminscence (TL) and optically stimulated luminescence (OSL) measurement"J. Nucl. Sci. Technol.. 39. 108-109 (2002)

Tetsuo Hashimoto：“用于红/蓝热释光 (TL) 和光受激发光 (OSL) 测量的自动系统”J.

DOI：
发表时间：
期刊：
影响因子：
0
作者：
通讯作者：

Simultaneous determination of radionuclides belonging to three natural decay series using Time Interval Analysis (TIA)

使用时间间隔分析 (TIA) 同时测定属于三个自然衰变系列的放射性核素

DOI：
发表时间：
2004
期刊：
Analytical and Bioanalytical Chemistry 379
影响因子：
0
作者：
Eri Goto;Miho Usuki;Hiroe Takenaka;Ken Sakai;Tomoaki Tanase;Yasuhiro Takagi;Tetsuo Hashimoto
通讯作者：
Tetsuo Hashimoto

Microinfrared reflection spectroscopic mappings : application to the detection of hydrogen-related species in natural quartz.

微红外反射光谱图：应用于检测天然石英中与氢相关的物质。