{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,6]],"date-time":"2026-07-06T15:44:03Z","timestamp":1783352643721,"version":"3.54.6"},"reference-count":18,"publisher":"Wiley","license":[{"start":{"date-parts":[[2017,1,1]],"date-time":"2017-01-01T00:00:00Z","timestamp":1483228800000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["61401049"],"award-info":[{"award-number":["61401049"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["CYB16044"],"award-info":[{"award-number":["CYB16044"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["106112016CDJXY120003"],"award-info":[{"award-number":["106112016CDJXY120003"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["cstc2015zdcy-ztzxX0002"],"award-info":[{"award-number":["cstc2015zdcy-ztzxX0002"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Graduate Scientific Research and Innovation Foundation of Chongqing","award":["61401049"],"award-info":[{"award-number":["61401049"]}]},{"name":"Graduate Scientific Research and Innovation Foundation of Chongqing","award":["CYB16044"],"award-info":[{"award-number":["CYB16044"]}]},{"name":"Graduate Scientific Research and Innovation Foundation of Chongqing","award":["106112016CDJXY120003"],"award-info":[{"award-number":["106112016CDJXY120003"]}]},{"name":"Graduate Scientific Research and Innovation Foundation of Chongqing","award":["cstc2015zdcy-ztzxX0002"],"award-info":[{"award-number":["cstc2015zdcy-ztzxX0002"]}]},{"DOI":"10.13039\/501100012226","name":"Fundamental Research Funds for the Central Universities","doi-asserted-by":"crossref","award":["61401049"],"award-info":[{"award-number":["61401049"]}],"id":[{"id":"10.13039\/501100012226","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100012226","name":"Fundamental Research Funds for the Central Universities","doi-asserted-by":"crossref","award":["CYB16044"],"award-info":[{"award-number":["CYB16044"]}],"id":[{"id":"10.13039\/501100012226","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100012226","name":"Fundamental Research Funds for the Central Universities","doi-asserted-by":"crossref","award":["106112016CDJXY120003"],"award-info":[{"award-number":["106112016CDJXY120003"]}],"id":[{"id":"10.13039\/501100012226","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100012226","name":"Fundamental Research Funds for the Central Universities","doi-asserted-by":"crossref","award":["cstc2015zdcy-ztzxX0002"],"award-info":[{"award-number":["cstc2015zdcy-ztzxX0002"]}],"id":[{"id":"10.13039\/501100012226","id-type":"DOI","asserted-by":"crossref"}]},{"name":"Chongqing Strategic Industry Key Generic Technology Innovation project","award":["61401049"],"award-info":[{"award-number":["61401049"]}]},{"name":"Chongqing Strategic Industry Key Generic Technology Innovation project","award":["CYB16044"],"award-info":[{"award-number":["CYB16044"]}]},{"name":"Chongqing Strategic Industry Key Generic Technology Innovation project","award":["106112016CDJXY120003"],"award-info":[{"award-number":["106112016CDJXY120003"]}]},{"name":"Chongqing Strategic Industry Key Generic Technology Innovation project","award":["cstc2015zdcy-ztzxX0002"],"award-info":[{"award-number":["cstc2015zdcy-ztzxX0002"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["International Journal of Biomedical Imaging"],"published-print":{"date-parts":[[2017]]},"abstract":"<jats:p>X-ray fluorescence computed tomography (XFCT) based on sheet beam can save a huge amount of time to obtain a whole set of projections using synchrotron. However, it is clearly unpractical for most biomedical research laboratories. In this paper, polychromatic X-ray fluorescence computed tomography with sheet-beam geometry is tested by Monte Carlo simulation. First, two phantoms (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M1\"><mml:mrow><mml:mi>A<\/mml:mi><\/mml:mrow><\/mml:math> and <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M2\"><mml:mrow><mml:mi>B<\/mml:mi><\/mml:mrow><\/mml:math>) filled with PMMA are used to simulate imaging process through GEANT 4. Phantom <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M3\"><mml:mrow><mml:mi>A<\/mml:mi><\/mml:mrow><\/mml:math> contains several GNP-loaded regions with the same size (10\u2009mm) in height and diameter but different Au weight concentration ranging from 0.3% to 1.8%. Phantom <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M4\"><mml:mrow><mml:mi>B<\/mml:mi><\/mml:mrow><\/mml:math> contains twelve GNP-loaded regions with the same Au weight concentration (1.6%) but different diameter ranging from 1\u2009mm to 9\u2009mm. Second, discretized presentation of imaging model is established to reconstruct more accurate XFCT images. Third, XFCT images of phantoms <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M5\"><mml:mrow><mml:mi>A<\/mml:mi><\/mml:mrow><\/mml:math> and <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M6\"><mml:mrow><mml:mi>B<\/mml:mi><\/mml:mrow><\/mml:math> are reconstructed by filter back-projection (FBP) and maximum likelihood expectation maximization (MLEM) with and without correction, respectively. Contrast-to-noise ratio (CNR) is calculated to evaluate all the reconstructed images. Our results show that it is feasible for sheet-beam XFCT system based on polychromatic X-ray source and the discretized imaging model can be used to reconstruct more accurate images.<\/jats:p>","DOI":"10.1155\/2017\/7916260","type":"journal-article","created":{"date-parts":[[2017,5,8]],"date-time":"2017-05-08T21:12:04Z","timestamp":1494277924000},"page":"1-10","source":"Crossref","is-referenced-by-count":11,"title":["Monte Carlo Simulation for Polychromatic X-Ray Fluorescence Computed Tomography with Sheet-Beam Geometry"],"prefix":"10.1155","volume":"2017","author":[{"given":"Shanghai","family":"Jiang","sequence":"first","affiliation":[{"name":"Key Lab of Optoelectronic Technology and Systems, Ministry of Education, Chongqing University, Chongqing 400044, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0983-2837","authenticated-orcid":true,"given":"Peng","family":"He","sequence":"additional","affiliation":[{"name":"Key Lab of Optoelectronic Technology and Systems, Ministry of Education, Chongqing University, Chongqing 400044, China"},{"name":"Engineering Research Center of Industrial Computed Tomography Nondestructive Testing, Ministry of Education, Chongqing University, Chongqing 400044, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6378-8398","authenticated-orcid":true,"given":"Luzhen","family":"Deng","sequence":"additional","affiliation":[{"name":"Key Lab of Optoelectronic Technology and Systems, Ministry of Education, Chongqing University, Chongqing 400044, China"},{"name":"Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3093-2920","authenticated-orcid":true,"given":"Mianyi","family":"Chen","sequence":"additional","affiliation":[{"name":"Key Lab of Optoelectronic Technology and Systems, Ministry of Education, Chongqing University, Chongqing 400044, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3957-5405","authenticated-orcid":true,"given":"Biao","family":"Wei","sequence":"additional","affiliation":[{"name":"Key Lab of Optoelectronic Technology and Systems, Ministry of Education, Chongqing University, Chongqing 400044, China"},{"name":"Engineering Research Center of Industrial Computed Tomography Nondestructive Testing, Ministry of Education, Chongqing University, Chongqing 400044, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","reference":[{"issue":"1","key":"1","doi-asserted-by":"publisher","first-page":"322","DOI":"10.1016\/j.nima.2007.04.069","volume":"579","year":"2007","journal-title":"Nuclear Instruments & Methods in Physics Research"},{"issue":"7","key":"2","doi-asserted-by":"publisher","first-page":"2210","DOI":"10.1021\/es0492034","volume":"39","year":"2005","journal-title":"Environmental Science & Technology"},{"issue":"7","key":"3","first-page":"1318","volume":"467\u2013468","year":"2001","journal-title":"Nuclear Instruments & Methods in Physics Research"},{"key":"4","doi-asserted-by":"publisher","DOI":"10.1016\/j.nima.2016.01.084"},{"issue":"2","key":"6","doi-asserted-by":"publisher","first-page":"262","DOI":"10.1109\/TMI.2012.2223709","volume":"32","year":"2013","journal-title":"IEEE Transactions on Medical Imaging"},{"key":"7","doi-asserted-by":"publisher","DOI":"10.1364\/OL.33.002494"},{"key":"8","doi-asserted-by":"publisher","DOI":"10.1021\/cr4007297"},{"key":"9","doi-asserted-by":"publisher","DOI":"10.2217\/nnm.14.171"},{"key":"10","doi-asserted-by":"publisher","DOI":"10.1088\/0031-9155\/56\/12\/017"},{"key":"13","doi-asserted-by":"publisher","DOI":"10.1088\/0031-9155\/54\/19\/N01"},{"key":"15","doi-asserted-by":"publisher","DOI":"10.1088\/0031-9155\/55\/3\/007"},{"key":"16","doi-asserted-by":"publisher","DOI":"10.1109\/TBME.2013.2294677"},{"key":"17","doi-asserted-by":"publisher","DOI":"10.1107\/S0909049511052253"},{"key":"19","doi-asserted-by":"publisher","DOI":"10.1002\/xrs.1190"},{"key":"20","doi-asserted-by":"publisher","DOI":"10.1118\/1.4906169"},{"issue":"12","key":"21","first-page":"49","volume":"28","year":"2008","journal-title":"Physics Today"},{"key":"22","doi-asserted-by":"publisher","DOI":"10.1109\/TMI.2012.2201165"},{"key":"23","doi-asserted-by":"publisher","DOI":"10.1137\/15M1021404"}],"container-title":["International Journal of Biomedical Imaging"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/downloads.hindawi.com\/journals\/ijbi\/2017\/7916260.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/ijbi\/2017\/7916260.xml","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/ijbi\/2017\/7916260.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2020,5,17]],"date-time":"2020-05-17T21:43:32Z","timestamp":1589751812000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.hindawi.com\/journals\/ijbi\/2017\/7916260\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2017]]},"references-count":18,"alternative-id":["7916260","7916260"],"URL":"https:\/\/doi.org\/10.1155\/2017\/7916260","relation":{},"ISSN":["1687-4188","1687-4196"],"issn-type":[{"value":"1687-4188","type":"print"},{"value":"1687-4196","type":"electronic"}],"subject":[],"published":{"date-parts":[[2017]]}}}