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首页> 外文期刊>Journal of Applied Physics >Investigation of neutron imaging applications using fine-grained nuclear emulsion
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Investigation of neutron imaging applications using fine-grained nuclear emulsion

机译：Investigation of neutron imaging applications using fine-grained nuclear emulsion

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摘要

Neutron imaging is a nondestructive inspection technique that has a wide range of applications. One of the important aspects of neutron imaging is achieving a micrometer-scale spatial resolution. The development of a high-resolution neutron detector is a challenging task. As one potential solution to this task, we investigate whether neutron detectors based on fine-grained nuclear emulsions are suitable for high-resolution neutron imaging applications. High track density is necessary to improve the quality of neutron imaging. However, the available track analysis methods are difficult to apply under high track density conditions. Simulated images are used to determine the required track density for neutron imaging. A track density of the order of 10(4) tracks per 100 x 100 mu m(2) is sufficient to utilize neutron detectors for imaging applications. Contrast resolution was also investigated for image datasets with various track densities and neutron transmission rates. Moreover, experiments were performed for the neutron imaging of gadolinium-based gratings with known geometries. The grating structures were successfully resolved. The calculated 1 sigma 10%-90% edge response using the grayscale optical images of the grating slit with a periodic structure of 9 mu m was 0.945 +/- 0.004 mu m.

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