公开(公告)号：US4398823A

公开(公告)日：1983-08-16

申请号：US268838

申请日：1981-06-01

申请人： Frederick C. Brown ,  Neil C. Lien

发明人： Frederick C. Brown ,  Neil C. Lien

IPC分类号： G01J3/18

CPC分类号： G01J3/1833

摘要： An extended range grazing incidence monochromator is disclosed which utilizes Rowland circle geometry to select a frequency of radiation from a broad spectrum of radiation, with the entrance slit and the gratings of the monochromator being positionable by remote electrical control, such as that provided by a digital computer, while the exit slit of the apparatus remains fixed. The monochromator has an extended range because it includes two different gratings, each of which has an optical characteristic adapted for use in a Rowland circle of a different size, and the apparatus is capable of switching between two gratings without breaking the ultra-high vacuum contained in the interior of the monochromator. The positioning of the entrance slit and the appropriate grating is accomplished both rotationally and linearly through the use of stepping motors which can be precisely remotely controlled for maximum accuracy and control.

摘要翻译： 公开了一种扩展范围的掠入射单色仪，其利用Rowland圆几何形状来选择来自广谱辐射的辐射频率，其中入射狭缝和单色仪的光栅可通过远程电气控制定位，例如由数字 计算机，而设备的出口狭缝保持固定。 单色仪具有扩展的范围，因为它包括两个不同的光栅，每个光栅具有适用于不同尺寸的罗兰圆的光学特性，并且该装置能够在两个光栅之间切换而不破坏包含的超高真空 在单色仪的内部。 入口狭缝和适当光栅的定位通过使用步进电机进行旋转和线性完成，可以精确地远程控制，以实现最大的精度和控制。