R&D OF BRIGHT-AND DARK-FIELD LASER MICROSCOPE TO RECOGNIZE THE CHARGES AND/OR THE ISOTOPES OF CHARGED PARTICLES.

右

基本信息

批准号：
07554075
负责人：
NAKAZAWA Kazuma
金额：
$ 1.09万
依托单位：
GIFU UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
1995
资助国家：
日本
起止时间：
1995 至 1996
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07554075/
关键词：
Nuclear Emulsion Recognition of charges and or isotopes Confocal laser microscope Microscope with two light sources Graphical image analysis 共焦点レーザー走査顕微鏡

项目摘要

1. We have tried to optimize the development condition for the actual size(25*25cm^2) of nuclear emulsion plate. An efficient grain density of -25/100mum was obtained. The darkness of plates, however, shall give a damage for image analysis to recognize the charges and isotopes of low-energy nuclear fragments.2. We found that ready-mede laser Scanning Microscope (LSM) did not give uniform reflected illunination for known (phi0.5mum) crystals in changing the focal plane.3. We modified an ordinal light microscope. Modified one has two light sources and this means that we can observe emulsion by reflected and penetrated lights at once. Position resolutions become 0.3mum for optical direction and 0.2mum for its vertical direction, respectively. This results shuld be compared with 1mum and 0.3mum or more in each directions of ordinal light microscope.4. We have analyzed images of ^3He^<2+> and ^3He^<2+>(13.5MeV) tracks in emulsion taken by a modified microscope. The width of a ^3He^<2+> track is 6-7% narrower than that of a ^4He^<2+> track. Since softwares to automatically pick up the focal plane is not fully made, yet, we need much time and con't discuss systemaically, now. However, we have known how we have to do.5. To recognize the relation between the lost energy and the volume of each tracks. If the grains of each traks reflect the lost energy, linearly, the caliculated volumes by the above width of ^3He^<2+> and ^4He^<2+>(13.5MeV) tracks should be same. The result was that the volume of a short ^4He^<2+> track was -20% smaller than that of a long ^3He^<2+> track. We have understood track volume in emulsion was not on good index to measure lost energy. However, the bigger difference of volumes between a ^3He^<2+> and ^4He^<2+> track would be an good index to recognize the charges and/or isotopes.

1。我们试图优化核乳液板实际尺寸（25*25cm^2）的发育条件。获得了-25/100MUM的有效晶粒密度。但是，板的黑暗应造成图像分析的损害，以识别低能量核碎片的电荷和同位素。2。我们发现，现成的 - 摩德激光扫描显微镜（LSM）在更改焦平面时未对已知（phi0.5mum）晶体的均匀反射不受伤害。3。我们修改了一个顺序光学显微镜。修改后有两个光源，这意味着我们可以立即通过反射和穿透灯观察到乳液。对于光学方向而言，位置分辨率分别为0.3MUM，其垂直方向分别为0.2MUM。将此结果与序数光显微镜的每个方向的1MUM和0.3MUM或更高的比较。4。我们已经分析了 ^3he ^<2+>和 ^3he ^<2+>（13.5mev）曲线的图像，该曲目由修饰的显微镜拍摄。 A ^3he ^<2+>轨道的宽度比A ^4he ^<2+>轨道窄6-7％。由于尚未完全制作软件自动拾取焦平面的软件，因此我们需要很多时间，并且现在没有系统地讨论。但是，我们知道我们必须做的。5。识别损失能量与每个轨道体积之间的关系。如果每个Trak的晶粒线性地反映了损失的能量，则在 ^3he ^<2+>>和 ^4he ^<2+>（13.5mev）轨道的上述宽度上的精细量应相同。结果是，短 ^4he ^<2+>轨道的体积比长 ^3he ^<2+>轨道小-20％。我们已经了解乳液中的轨道体积并不是良好的指数来测量能量损失。但是，A ^3he ^<2+>和 ^4he ^<2+>轨道之间的较大体积差异将是识别电荷和/或同位素的良好索引。