| Autor: |
Jianrong Zhou, Xiaojuan Zhou, Jianjin Zhou, Xingfen Jiang, Jianqing Yang, Lin Zhu, Wenqin Yang, Tao Yang, Hong Xu, Yuanguang Xia, Gui-an Yang, Yuguang Xie, Chaoqiang Huang, Bitao Hu, Zhijia Sun, Yuanbo Chen |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
Nuclear Engineering and Technology, Vol 52, Iss 6, Pp 1277-1281 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
1738-5733 |
| DOI: |
10.1016/j.net.2019.11.021 |
| Popis: |
A novel ceramic Gas Electron Multiplier (GEM) has been developed to meet the demand of high counting rate for the neutron detection which is an alternative to 3He-based detector at China Spallation Neutron Source (CSNS). An experiment was performed to measure the neutron transmittance of ceramic-GEM and FR4-GEM at the small angle neutron scattering (SANS) instrument. The result showed the ceramic-GEM has higher transmittance and less self-scattering especially for cold neutrons. One single ceramic GEM could give a gain of 102-104 in the mixture gas of Ar and CO2 (90%:10%) and its energy resolution was about 27.7% by using 55Fe X ray of 5.9 keV. A prototype has been developed in order to investigate the performances of the ceramic GEM-based neutron detector. Several neutron beam tests, including detection efficiency, spatial resolution, two-dimensional imaging, and wavelength spectrum, were carried out at CSNS and China Mianyang Research Reactor (CMRR). The results show that the ceramic GEM-based neutron detector is a good candidate to measure the high intensity neutrons. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
