Doering D, Chuang Y-D, Andresen N, Chow K, Contarato D, Cummings C, Domning E, Joseph J, Pepper J S, Smith B, Zizka G, Ford C, Lee W S, Weaver M, Patthey L, Weizeorick J, Hussain Z, Denes P
Engineering Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, California 94720, USA.
Rev Sci Instrum. 2011 Jul;82(7):073303. doi: 10.1063/1.3609862.
The designs of a compact, fast CCD (cFCCD) camera, together with a resonant soft x-ray scattering endstation, are presented. The cFCCD camera consists of a highly parallel, custom, thick, high-resistivity CCD, readout by a custom 16-channel application specific integrated circuit to reach the maximum readout rate of 200 frames per second. The camera is mounted on a virtual-axis flip stage inside the RSXS chamber. When this flip stage is coupled to a differentially pumped rotary seal, the detector assembly can rotate about 100°/360° in the vertical/horizontal scattering planes. With a six-degrees-of-freedom cryogenic sample goniometer, this endstation has the capability to detect the superlattice reflections from the electronic orderings showing up in the lower hemisphere. The complete system has been tested at the Advanced Light Source, Lawrence Berkeley National Laboratory, and has been used in multiple experiments at the Linac Coherent Light Source, SLAC National Accelerator Laboratory.
介绍了一种紧凑型快速电荷耦合器件（cFCCD）相机的设计，以及一个共振软X射线散射终端站。cFCCD相机由一个高度并行的定制厚高电阻率电荷耦合器件组成，通过一个定制的16通道专用集成电路进行读出，以达到每秒200帧的最大读出速率。该相机安装在RSXS腔室内的虚拟轴翻转台上。当这个翻转台与一个差动泵浦旋转密封件相连时，探测器组件可以在垂直/水平散射平面内旋转约100°/360°。借助一个六自由度低温样品测角仪，这个终端站有能力检测在下半球出现的电子有序的超晶格反射。整个系统已在劳伦斯伯克利国家实验室的先进光源进行了测试，并已在SLAC国家加速器实验室的直线加速器相干光源上用于多次实验。
