| Autor: |
Xingfen Jiang, Qinglei Xiu, Jianrong Zhou, Jianqing Yang, Jinhao Tan, Wenqin Yang, Lianjun Zhang, Yuanguang Xia, Xiaojuan Zhou, Jianjin Zhou, Lin Zhu, Haiyun Teng, Gui-an Yang, Yushou Song, Zhijia Sun, Yuanbo Chen |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Nuclear Engineering and Technology, Vol 53, Iss 6, Pp 1942-1946 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
1738-5733 |
| DOI: |
10.1016/j.net.2020.12.009 |
| Popis: |
Gadolinium oxysulfide (GOS) is regarded as a novel scintillator for the realization of ultra-high spatial resolution in neutron imaging. Monte Carlo simulations of GOS scintillator show that the capability of its spatial resolution is towards the micron level. Through the time-of-flight method, the light output of a GOS scintillator was measured to be 217 photons per captured neutron, ∼100 times lower than that of a ZnS/LiF:Ag scintillator. A detector prototype has been developed to evaluate the imaging solution with the GOS scintillator by neutron beam tests. The measured spatial resolution is ∼36 μm (28 line pairs/mm) at the modulation transfer function (MTF) of 10%, mainly limited by the low experimental collimation ratio of the beamline. The weak light output of the GOS scintillator requires an enormous increase in the neutron flux to reduce the exposure time for practical applications. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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