Design and verification of a radiation detector's electronics system

• Main Authors: Siming Guo, Jinjie Wu, Jian Zhang, Panfeng Wang
• Format: Article
• Language: English
• Published: Wiley 2019-10-01
• Series: The Journal of Engineering
• Subjects: radiation monitoring; preamplifiers; neutron detection; nuclear electronics; semiconductor counters; proportional counters; operational amplifiers; nuclear radiation monitoring; nuclear radiation detector whose performance; electronics system; designed electronic system; cosmic neutrons; main amplifier; multisim simulation software; amplitude-versus-frequency curves; preamplifier; neutron detector
• Online Access: https://digital-library.theiet.org/content/journals/10.1049/joe.2018.9047

The electronics system is a crucial component of a nuclear radiation detector whose performance directly affects the accuracy of nuclear radiation monitoring. The design of a neutron detector's electronics system is introduced here. Two sets of preamplifiers are designed, the amplitude-versus-frequency curves of the preamplifiers are compared using Multisim simulation software, and a better preamplifier is determined through the comparison. A similar approach is used in the design of main amplifier, the amplitude-versus-frequency curves of four operational amplifiers are simulated by Multisim, and the best ones are chosen. The discriminator and trigger are designed in the electronics after the main amplifier, which are used for signal screening and shaping. The neutron detector is tested by cosmic neutrons in environmental background, which is composed of the designed electronic system and a proportional counter tube. Experiments show that the electronics is suitable for neutron detector.