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arXiv 1002.1622physics.ins-detnucl-ex
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射线成像探测器校准用LED参考光源的研制

Development of an LED reference light source for calibration of radiographic imaging detectors

M. Weierganz, D. Bar, B. Bromberger, V. Dangendorf, G. Feldman, M. B. Goldberg, M. Lindemann, I. Mor, K. Tittelmeier, D. Vartsky

摘要:

提出了一种基于LED(发光二极管)的稳定参考光源,用于稳定γ和快中子射线照相和断层成像装置光电系统的转换增益。恒定比例的LED光被传输到相机的图像平面,并提供稳定的参考曝光。这用于在离线图像处理期间对图像进行归一化。我们已经研究了影响LED稳定性的参数,并制定了程序和标准来制备和选择适合于提供稳定的光输出的LED,持续运行100小时。

英文摘要:

A stable reference light source based on an LED (Light Emission Diode) is presented for stabilizing the conversion gain of the opto-electronic system of a gamma- and fast-neutron radiographic and tomographic imaging device. A constant fraction of the LED light is transported to the image plane of the camera and provides a stable reference exposure. This is used to normalize the images during off-line image processing. We have investigated parameters influencing the stability of LEDs and developed procedures and criteria to prepare and select LEDs suitable for delivering stable light outputs for several 100 h of operation.

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。

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