Fast X-ray/γ-ray imaging using electron multiplying CCD-based detector
Fast X-ray/γ-ray imaging using electron multiplying CCD-based detector
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使用基于电子倍增 CCD 的探测器进行快速 X 射线/γ 射线成像
DOI：
10.1016/j.nima.2006.01.063
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发表时间：
2006
影响因子：
1.4
通讯作者：
V. Gaysinskiy
中科院分区：
文献类型：
--
作者：
V. Nagarkar;I. Shestakova;Bipin Singh;V. Gaysinskiy
电子倍增电荷耦合器件（EMCCD）的新设计将传统CCD的上级空间分辨率和低噪声与雪崩光电二极管（APD）的内部增益相结合。内部增益的存在不仅增强了器件的灵敏度，而且几乎消除了与当前CCD相关的读取噪声，即使器件以每秒100帧或更高的非常高的帧速率读取时也是如此。因此，EMCCD可以同时提供非常高的灵敏度和高信噪比（SNR）。在RMD，我们正在利用EMCCD的这些特性用于放射性核素和X射线成像。具体地说，我们已经开发了一个系统，使用的EMCCD与512 × 512，16 × 16μm像素。设计了特殊的光纤异径管以增强探测器的敏感区域。系统增益可通过软件选择，范围为1至1000。本文介绍了探测器的设计沿着及其γ射线/X射线成像性能。
New designs of electron multiplying charge coupled devices (EMCCDs) combine superior spatial resolution and low noise of a conventional CCD with the internal gain of an avalanche photodiode (APD). The presence of internal gain not only enhances the device sensitivity, but virtually eliminates the read noise associated with current CCDs, even when the device is read at very high frame rates of 100 frames per second or higher. Thus, the EMCCDs can simultaneously provide very high sensitivity and a high signal-to-noise ratio (SNR). At RMD we are exploiting these properties of EMCCD for use in radionuclide and X-ray imaging. Specifically, we have developed a system that makes use of an EMCCD with 512 × 512, 16 × 16μm pixels. Special fiberoptic reducers have been designed to enhance the detector sensitive area. The system gain is software selectable and may be varied from 1 to 1000. This paper describes the detector design along with its γ-ray/X-ray imaging performance.
使用 CCD 探测器和同步加速器辐射进行高分辨率大分子结构测定。
DOI：
10.1016/s0969-2126(01)00218-0
发表时间：
1995
期刊：
Structure (London, England : 1993)
影响因子：
--
作者：
Walter,RL;Thiel,DJ;Barna,SL;Tate,MW;Wall,ME;Eikenberry,EF;Gruner,SM;Ealick,SE
通讯作者：
Ealick,SE