公开(公告)号：US20080043923A1

公开(公告)日：2008-02-21

申请号：US11358513

申请日：2006-02-21

申请人： Dimitrios Papaioannou ,  Jose-Luis Spino

发明人： Dimitrios Papaioannou ,  Jose-Luis Spino

IPC分类号： G21K1/02 ,  G01N23/20

CPC分类号： G01N23/223 ,  G01N2223/076 ,  G21K1/06

摘要： A micro collimator for compressing X-ray beams for use in a X-ray diffractometer is described, wherein said collimator has a channel means for providing a channel guiding said X-ray beams, said channel having a channel entrance portion and a channel exit portion. The object of the invention is to provide a micro beam collimator capable of being used in a conventional X-ray diffractometer with the Bragg-Brentano geometry, so as to enable the characterisation of very small sample regions without need of very large radiation sources (synchrotron). For solving this technical problem it is proposed to form the channel means by two opposite, polished, oblong plate means made of or coated with a material selected from the group consisting of the heavyweight metals and materials having total reflection properties comparable to those of the heavyweight metals.

摘要翻译： 描述了用于压缩用于X射线衍射仪中的X射线束的微型准直器，其中所述准直器具有用于提供引导所述X射线束的通道的通道装置，所述通道具有通道入口部分和通道出口部分 。 本发明的目的是提供一种能够在具有布拉格 - 布伦塔诺几何形状的常规X射线衍射仪中使用的微光束准直仪，以便能够对非常小的样品区域进行表征，而不需要非常大的辐射源（同步加速器 ）。 为了解决这个技术问题，提出了通过两个相对的，抛光的，长方形的平板装置形成通道装置，该装置由选自重量级金属和具有与重量级的全反射特性相当的全反射特性的材料制成或涂覆的材料 金属。

公开(公告)号：US20090324953A1

公开(公告)日：2009-12-31

申请号：US12443854

申请日：2007-10-03

申请人： Jose-Luis Spino ,  Hernan Santa Cruz

发明人： Jose-Luis Spino ,  Hernan Santa Cruz

IPC分类号： G21C3/58 ,  G21C21/02

CPC分类号： G21C21/02 ,  G21C3/623 ,  Y02E30/31 ,  Y02E30/32 ,  Y02E30/38 ,  Y10T428/2982

摘要： A sintered nuclear fuel pellet, in particular for use in PWR or BWR nuclear reactors consists of grains having a size of less than 1 μm. A method of manufacturing such pellet is also disclosed.

摘要翻译： 特别是用于PWR或BWR核反应堆的烧结核燃料颗粒由尺寸小于1um的颗粒组成。 还公开了制造这种丸粒的方法。