Publication Date:
2012-06-16
Description:
China Spallation Neutron Source (CSNS), one project of the 12 th Five-Year-Plan scheme of China, is under construction in Guangdong province. Three neutron spectrometers will be installed during the first phase of the project, and two-dimensional position sensitive thermal neutron detectors are required. Before the construction of the neutron detectors, a prototype of a two-dimensional 200 mm×200 mm Multi-wire Proportional Chamber (MWPC) with Ar/CO 2 (90/10) flowing gas has been constructed. In 2009, the prototype was tested with the 55 Fe X-ray using part of the electronics, and performed well. Following the test in 2009, the neutron detector was constructed with the complete electronics and filled with the 6 atm. 3 He+2.5 atm. C 3 H 8 gas mixture in 2010. The neutron detector has been primarily tested with an Am-Be source. In this paper, new developments of the neutron detector including the design of the high p...
Print ISSN:
1674-1137
Topics:
Physics
