2021/07/31 by Yu Wang, Zhiyong Zhang, Shubin Liu +6
Physics and Astronomy · #Atomic and Subatomic Physics Research #Detector #Image resolution #MicroMegas detector #Muon #Nuclear physics #Optics #Particle Detector Development and Performance #Physics #Radiation Detection and Scintillator Technologies #Tomography #hep-ex #physics.ins-det
paper · pdf · doi:10.1109/tns.2021.3137415
8 pages, 17 figures, second version to IEEE TNS
openalex publication_date 2021/12/22 · arxiv created 2021/12/30 · arxiv updated 2022/02/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Cosmic ray muon has strong penetrating power and no ionizing radiation hazards, which makes it an ideal probe for detecting special nuclear materials (SNMs). In this article, a high spatial resolution muon tomography system based on Micromegas detectors is proposed to optimize the imaging time and quality. The proposed system includes eight Micromegas detectors based on the thermal bonding technique and a scalable readout system. In addition, a multiplexing method based on position encoding is developed to reduce the number of electronics channels by order of magnitude. The spatial resolution of the proposed system with encoding readout can reach a value of hundred micrometers. Finally, a tomography test is performed, and test results show that this proposed system can image 2-cm objects and distinguish different materials.