Infrared imaging: Synchrotrons vs. arrays, resolution vs. speed
Infrared imaging: Synchrotrons vs. arrays, resolution vs. speed
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DOI：
10.1016/j.infrared.2006.01.026
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发表时间：
2006-09-01
影响因子：
3.3
通讯作者：
Martin, Michael C.
中科院分区：
文献类型：
--
作者：
Levenson, Erika;Lerch, Philippe;Martin, Michael C.
在 ALS，我们一直在测试 Thermo-Electron 最新的红外成像系统 Continuum XL 显微镜。该显微镜配备 32 元件 NICT (16 x 2) 阵列，可实现固定步长的快速红外成像。该显微镜还具有传统的单元件 MCT-A，可更换为 MCT-B 或 InSb 探测器。该显微镜安装在 ALS Beamline 1.4.4 上，其中同步加速器源为单晶探测器提供高亮度。我们将全球探测器和同步加速器源的每种探测器类型的测量空间分辨率与波长和光学配置的函数进行比较。我们发现同步加速器保留了其最终空间分辨率和信噪比的优势，而阵列检测系统可以快速方便地测量样本的较大区域。因此，在实践中，我们使用阵列系统来获取初始红外图像，这使我们能够找到使用同步加速器源“放大”的感兴趣区域。 (c) 2006 Elsevier B.V. 保留所有权利。
At the ALS we have been testing out Thermo-Electron's newest infrared imaging system, the Continuum XL microscope. This microscope is equiped with a 32-element NICT (16 x 2) array which allows rapid infrared imaging with fixed step sizes. The microscope also has a conventional single element MCT-A, which can be swapped for an MCT-B, or InSb detectors. This microscope is installed on ALS Beamline 1.4.4 where the synchrotron source provides high brightness for the single element detectors. We present comparisons of the measured spatial resolutions available with each of these detector types for globar and synchrotron sources as a function of wavelength and optical configuration. We find that the synchrotron retains its superiority for ultimate spatial resolution and signal-to-noise, while the array detection system is fast and convenient for surveying larger regions of a sample. Therefore in practice we use the array system for initial infrared images which allow us to find the regions of interest where we 'zoom in' using the synchrotron source. (c) 2006 Elsevier B.V. All rights reserved.