Abstract
The time-of-flight (TOF) of an associated white neutron beam line exploiting back-streaming neutrons (Back-n) at China Spallation Neutron Source (CSNS) was obtained using a scintillator detector consisting of stilbene crystal, a photomultiplier tube (PMT), a screening can, and a high sampling rate oscilloscope. An original energy-count spectrum was acquired based on the time-of-flight method. Four kind of stilbene crystals were placed at different angles and distances from the polyethylene scattering target, with different sizes of Φ15 mm × 5 mm, Φ25 mm × 10 mm, Φ50 mm × 10 mm and Φ50 mm × 30 mm. The detection efficiency of multiple energy points was calculated based on the reference energy spectrum, and 10 detection efficiency response curves between 0.5 MeV and 20 MeV were obtained in accordance with a Monte Carlo simulation. The results demonstrated the feasibility of using a scintillator detector for neutron detection efficiency at a white neutron source. This method shows great potential in neutron detection efficiency calibration for all organic scintillation detectors.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
