| Autor: |
Muneem, Abdul, Yoshida, Junya, Ekawa, Hiroyuki, Hino, Masahiro, Hirota, Katsuya, Ichikawa, Go, Kasagi, Ayumi, Kitaguchi, Masaaki, Muto, Naoto, Mishima, Kenji, Nabi, Jameel-Un, Nakagawa, Manami, Naganawa, Naotaka, Saito, Takehiko R. |
| Předmět: |
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| Zdroj: |
Journal of Applied Physics; 2/7/2023, Vol. 133 Issue 5, p1-16, 16p |
| Abstrakt: |
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 × 100 μ 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 σ 10%–90% edge response using the grayscale optical images of the grating slit with a periodic structure of 9 μ m was 0.945 ± 0.004 μ m. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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