Recent developments in GEM-based neutron detectors

International Nuclear Science and Technology Conference 2014

Saenboonruang, K.^1

Kasetsart University, Chatuchak, Bangkok

10900, Thailand^1

关键词: Discharge probability;    Gas electron multipliers;    Gaseous detectors;    High rate capability;    Neutron converters;    Neutron detection;    Nuclear and particle physics;    Radiation hardness;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/611/1/012016/pdf
DOI  :  10.1088/1742-6596/611/1/012016

来源: IOP

【 摘 要 】

The gas electron multiplier (GEM) detector is a relatively new gaseous detector that has been utilized for less than 20 years. Since the discovery in 1997 by F. Sauli, the GEM detector has shown excellent properties including high rate capability, excellent resolution, low discharge probability, and excellent radiation hardness. These promising properties have led the GEM detector to gain popularity and attention amongst physicists and researchers. In particular, the GEM detector can also be modified to be used as a neutron detector by adding appropriate neutron converters. With properties stated above and the need to replace the previous expensive3He-based neutron detectors, the GEM-based neutron detector could be one of the most powerful and affordable neutron detectors. Applications of the GEM-based neutron detectors vary from researches in nuclear and particle physics, neutron imaging, and national security. Although several promising progresses and results have been shown and published in the past few years, further improvement is still needed in order to improve the low neutron detection efficiency (only a few percent) and to widen the possibilities for other uses.