A fast and reliable approach to simulating the output from an x-ray tube used for developing security backscatter imaging

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dc.contributor.author Vella, Anna
dc.contributor.author Munoz, Andre Arelius Marcus
dc.contributor.author Healy, M. J. F.
dc.contributor.author Lane, David W.
dc.contributor.author Lockley, D.
dc.contributor.author Zhou, J. G.
dc.date.accessioned 2017-10-11T10:21:26Z
dc.date.available 2017-10-11T10:21:26Z
dc.date.issued 2017-08-10
dc.identifier.citation Vella A, Munoz A, Healy MJF, Lane DW, Lockley D, Zhou JG (2017). A fast and reliable approach to simulating the output from an x-ray tube used for developing security backscatter imaging, Proc. SPIE 10388, Advances in Computational Methods for X-Ray Optics IV, 103880X; doi: 10.1117/12.2273758 en_UK
dc.identifier.issn 0277-786X
dc.identifier.uri http://dspace.lib.cranfield.ac.uk/handle/1826/12614
dc.description Copyright 2017 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. en_UK
dc.description.abstract The PENELOPE Monte Carlo simulation code was used alongside the SpekCalc code to simulate X-ray energy spectra from a VJ Technologies’ X-ray generator at a range of anode voltages. The PENELOPE code is often utilised in medicine but is here applied to develop coded aperture and pinhole imaging systems for security purposes. The greater computational burden of PENELOPE over SpekCalc is warranted by its greater flexibility and output information. The model was designed using the PENGEOM sub-tool and consists of a tungsten anode and five layers of window materials. The photons generated by a mono-energetic electron beam are collected by a virtual detector placed after the last window layer, and this records the spatial, angular and energy distributions which are then used as the X-ray source for subsequent simulations. The process of storing X-ray outputs and using them as a virtual photon source can then be used efficiently for exploring a range of imaging conditions as the computationally expensive electron interactions in the anode need not be repeated. The modelled spectra were validated with experimentally determined spectra collected with an Amptek X-123 Cadmium Telluride detector placed in front of the source. en_UK
dc.publisher SPIE en_UK
dc.title A fast and reliable approach to simulating the output from an x-ray tube used for developing security backscatter imaging en_UK
dc.type Conference paper en_UK


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