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Title: Digital Data Acquisition Techniques forFast Neutron Detection UsingLiquid Scintillator
Author: Jaffar, Ghulam
Awarding Body: University of Surrey
Current Institution: University of Surrey
Date of Award: 2007
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The motivation of this project is to explore the use of digital pulse processing techniques for fast neutron and gamma ray detection in liquid scintillator. Digital techniques can simplify the performance of scintillation detectors where both timing information and pulse-height spectroscopy are required. Software based pulse shape discrimination (PSD) and timing algorithms have been developed that can be used in various neutron experiments in the time-of-flight (TOF) mode over a wide neutron energy range. These algorithms can be applied to current pulses produced directly from the photomultiplier tube and thus removing the need for processing electronics, which are typically required in an analog pulse shape system. The digital techniques developed in this study were applied to a large volume 'Demon' liquid scintillator detector. The Demon detector has a high intrinsic efficiency over a large energy range that is 50% for neutrons of 10 MeV and about 50% for y-rays of 1275 keV. During the normal Demon experiments the energy of fast neutron is measured using analog TOF methods.
Supervisor: Not available Sponsor: Not available
Qualification Name: Not available Qualification Level: Doctoral
EThOS ID:  DOI: Not available