Time-of-Flight Neutron Imaging on IMAT@ISIS: A New User Facility for Materials Science
Time-of-Flight Neutron Imaging on IMAT@ISIS: A New User Facility for Materials Science
复制标题
DOI：
10.3390/jimaging4030047
复制
发表时间：
2018-03-01
影响因子：
3.2
通讯作者：
Nightingale, Jim
中科院分区：
文献类型：
--
作者：
Kockelmann, Winfried;Minniti, Triestino;Nightingale, Jim
脉冲中子源ISIS第二个靶站的冷中子成像和衍射仪器IMAT目前正在调试，准备供用户使用。IMAT将使白束中子射线照相术和断层摄影术成为可能。在脉冲源上操作的益处之一是通过飞行时间测量来确定中子能量，从而实现能量选择性和能量色散中子成像，用于最大化给定材料之间的图像对比度以及用于映射结构和微结构特性。我们调查的硬件和软件组件的数据收集和图像分析的IMAT，并提供了一个循序渐进的程序，操作仪器的能量色散成像使用两相金属测试对象作为一个例子。
The cold neutron imaging and diffraction instrument IMAT at the second target station of the pulsed neutron source ISIS is currently being commissioned and prepared for user operation. IMAT will enable white-beam neutron radiography and tomography. One of the benefits of operating on a pulsed source is to determine the neutron energy via a time of flight measurement, thus enabling energy-selective and energy-dispersive neutron imaging, for maximizing image contrasts between given materials and for mapping structure and microstructure properties. We survey the hardware and software components for data collection and image analysis on IMAT, and provide a step-by-step procedure for operating the instrument for energy-dispersive imaging using a two-phase metal test object as an example.