Author: Primidis, T.G.
Paper Title Page
THPOMS033 Design and Optimisation of a Stationary Chest Tomosynthesis System with Multiple Flat Panel Field Emitter Arrays: Monte Carlo Simulations and Computer Aided Designs 3034
 
  • T.G. Primidis, C.P. Welsch
    The University of Liverpool, Liverpool, United Kingdom
  • T.G. Primidis, C.P. Welsch
    Cockcroft Institute, Warrington, Cheshire, United Kingdom
  • T.G. Primidis
    King’s College London, London, United Kingdom
  • V. Soloviev, S.G. Wells
    Adaptix Ltd, Oxford, United Kingdom
 
  Funding: Funded by the Accelerators for Security, Healthcare and Environment Centre for Doctoral Training of the United Kingdom Research and Innovation, Science and Technology Facilities Council, ST/R002142/1
Digital tomosynthesis (DT) allows 3D imaging by using a ~30° range of projections instead of a full circle as in computed tomography (CT). Patient doses can be ~10 times lower than CT and similar to 2D radiography but diagnostic ability is significantly better than 2D radiography and can approach that of CT. Moreover, cold-cathode field emission technology allows the integration of 10s of X-ray sources into source arrays that are smaller and lighter than conventional X-ray tubes. The distributed source positions avoid the need for source movements and Adaptix Ltd has demonstrated stationary 3D imaging with this technology in dentistry, orthopaedics, veterinary medicine and non-destructive testing. In this work we present Monte Carlo simulations of an upgrade to the Adaptix technology to specifications suited for chest DT and we show computer aided designs for a system with various populations of these source arrays. We conclude that stationary arrays of cold-cathode X-ray sources could replace movable X-ray tubes for 3D imaging and different arrangements of many such arrays could be used to tailor the X-ray fields to different patient size and diagnostic objective.
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2022-THPOMS033  
About • Received ※ 07 June 2022 — Revised ※ 12 June 2022 — Accepted ※ 14 June 2022 — Issue date ※ 22 June 2022
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