高强度镜面反射仪-第一次实验
High intensity specular reflectometry - first experiments
摘要：
Selene是实现高强度镜面反射测量的新方案的尝试。代替高度准直的光束，使用覆盖大角度范围的会聚光束。然后通过位置敏感检测器执行角分辨率。在这种设置中的离镜散射导致一些背景，但是对于宽参数范围（例如温度、电场和磁场）的筛选，至少一个数量级的强度增益是必要的。如有必要，高旋进测量（即使有非镜面分量），然后执行与传统的设置。这种新装置的核心是一个2米长的椭圆聚焦导向元件。尽管本指南针对SINQ的TOF反射计Amor进行了优化，但它也可以作为独立设备使用，以检查其他中子散射技术的可能应用。对AMOR的第一次测量证实了总的概念和各种操作模式。由于导向器内部对准问题，发生回缩。然而，在TOF模式中，达到了10的增益因子，并且对于改进的引导，可以预期因子25。
英文摘要：
Selene is the attempt to implement a new scheme for high-intensity specular reflectometry. Instead of a highly collimated beam one uses a convergent beam covering a large angular range. The angular resolution is then performed by a position-sensitive detector. Off-specular scattering in this set-up leads to some background, but for screening of wide parameter ranges (e.g. temperature, electric and magnetic fields) the intensity gain of at least one order of magnitude is essential. If necessary, the high precession measurements (even with off-specular components) then are performed with the conventional set-up. The heart of this new set-up is an elliptically focusing guide element of 2\,m length. Though this guide is optimised for the use on the TOF reflectometer Amor at SINQ, it can be used as stand-alone device to check the possible application also for other neutron scattering techniques. The first measurements on AMOR confirmed the general concept and the various operation modes. A draw-back occurred due to problems with the internal alignment of the guide. Nevertheless in the TOF mode a gain factor of 10 was reached, and a factor 25 can be expected for an improved guide.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
