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The new paradox of dual modality X-Ray diamond sorting

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dc.contributor.author Modise, Ernest Gomolemo
dc.contributor.author Zungeru, Adamu Murtala
dc.contributor.author Chuma, Joseph
dc.contributor.author Prabaharan, S.R.S.
dc.contributor.author Mtengi, Bokani
dc.contributor.author Ude, Albert Uchenna
dc.contributor.author Nedev, Zhivko
dc.date.accessioned 2021-07-26T11:43:08Z
dc.date.available 2021-07-26T11:43:08Z
dc.date.issued 2021-06
dc.identifier.citation Modise, E. G. et al. (2021) The new paradox of dual modality X-Ray diamond sorting. IEEE Photonics Journal, 13(3), 1- 24,10.1109/JPHOT.2021.3074238.. en_US
dc.identifier.issn 1943-0655
dc.identifier.issn 1943-0647
dc.identifier.uri http://repository.biust.ac.bw/handle/123456789/308
dc.description.abstract Modern-day diamond sorting is achieved through the application of X-ray lumi- nescence (XRL) and X-ray transmission (XRT) techniques. Sorting with XRL is limited to the class range of 1.25 mm to 32 mm because of self-absorption associated with larger dia- monds, greater than 32mm. The effect of self-absorption is also a high-energy phenomenon in XRL. XRT is limited to sorting large size diamonds as the technique suffers poor contrast for diamonds smaller than 10mm. XRT measurements are immune to self-absorption for all sample sizes, while XRL measurements have good contrast for particles smaller than 32mm. The applications of these techniques have hitherto been used independently of each other and have subsequently progressed mutually exclusively. Here we analytically show a new paradox of a dual-modality X-ray diamond sorting combining XRL and XRT techniques’ strengths. Key features of our new paradoxical model performance are contrast mitigation for small particles and self-absorption rejection for a large particle at high energy as well as improved particle detectability and classification. en_US
dc.description.sponsorship This work was supported by the Office of Research, Development and Innovation (ORDI) of the Botswana International University of Science and Technology under Grants R00099 and S00292. en_US
dc.language.iso en en_US
dc.publisher IEEE en_US
dc.subject Luminescence en_US
dc.subject Fluorescence en_US
dc.subject Transmission en_US
dc.subject Self-absorption en_US
dc.subject Contrast en_US
dc.subject Detectability en_US
dc.subject X-ray transmission (XRT) techniques en_US
dc.title The new paradox of dual modality X-Ray diamond sorting en_US
dc.description.level phd en_US
dc.description.accessibility unrestricted en_US
dc.description.department cte en_US


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