Rapid prototyping-coded masks for x-ray backscatter imaging
| dc.contributor.author | Munoz, Andre Arelius Marcus | |
| dc.contributor.author | Vella, Anna | |
| dc.contributor.author | Healy, Matthew J. F. | |
| dc.contributor.author | Lane, David W. | |
| dc.date.accessioned | 2019-11-29T11:16:08Z | |
| dc.date.available | 2019-11-29T11:16:08Z | |
| dc.date.issued | 2018-08-22 | |
| dc.description.abstract | Coded masks (CM) often lack a self-supporting structure that is difficult to manufacture without recourse to drilled holes in place of ideal square apertures, degrading imaging properties. An alternative approach is presented with three-dimensional (3-D) printed CM molds cast with a radio-opaque material that allows square elements to be retained. Two methods are presented; hot casting a bismuth alloy (density 8.6 g cm − 3) and cold casting with tungsten powder/epoxy resin (densities 9.6 and 10.6 g cm − 3). A critical review of 3-D printed-CM fabrication along with some typical x-ray backscatter images is presented. A signal-to-noise ratio from both the machined tungsten and cold cast 3-D printed mask were comparable, with the former having a slight advantage. Also, 3-D printed cold cast masks were found to be more economical and easier to rapid prototype over traditional drilled tungsten masks. | en_UK |
| dc.identifier.citation | Munoz AAM, Vella A, Healy MJF, et al., Rapid prototyping-coded masks for x-ray backscatter imaging. Optical Engineering, Volume 57, Issue 8, August 2018, Article number 085104 | en_UK |
| dc.identifier.cris | 21309832 | |
| dc.identifier.issn | 0091-3286 | |
| dc.identifier.uri | https://doi.org/10.1117/1.OE.57.8.085104 | |
| dc.identifier.uri | http://dspace.lib.cranfield.ac.uk/handle/1826/14782 | |
| dc.language.iso | en | en_UK |
| dc.rights | Attribution-NonCommercial 4.0 International | * |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc/4.0/ | * |
| dc.subject | coded apertures | en_UK |
| dc.subject | coded masks | en_UK |
| dc.subject | x-ray backscatter | en_UK |
| dc.subject | three-dimensional printing | en_UK |
| dc.title | Rapid prototyping-coded masks for x-ray backscatter imaging | en_UK |
| dc.type | Article | en_UK |