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Detailed analysis of events from high-energy X-ray photons impinging on a two-phase front-illuminated CCD

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Title: Detailed analysis of events from high-energy X-ray photons impinging on a two-phase front-illuminated CCD
Authors: Levato, T. tadzio.levato@df.unipi.it, Labate, L., Galimberti, M., Giulietti, A., Giulietti, D., Gizzi, L.A.
Source: Nuclear Instruments & Methods in Physics Research Section A. Jul2008, Vol. 592 Issue 3, p346-353. 8p.
Subjects: Spectrum analysis instruments, Einstein-Podolsky-Rosen experiment, Digital cameras, Photons
Abstract: Abstract: A study of the single-photon events generated by the interaction of X-rays up to 60keV with a true two-phase charge coupled device (CCD) is reported. In particular, a relevant classification of the events is carried out according to their size and collected charge. This classification shows the occurrence of two main groups, characterized by a quite large difference in the ADU values that has been observed between events having different sizes but coming from photons with the same energy. Based upon 2D numerical calculations accounting for the charge cloud dynamics, diffusion and recombination, an explanation is suggested for this difference, arising from the difference in the electric field strength in the point of initial interaction. Moreover, the relative abundance of these two groups was found to be energy dependent. A model accounting for the true two-phase pixel structure was found to be a valid tool for a correct prediction of this abundance and an enhanced reconstruction of the spectra of the impinging photons. [Copyright &y& Elsevier]
Copyright of Nuclear Instruments & Methods in Physics Research Section A is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 33135374
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PubType: Academic Journal
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  Data: Detailed analysis of events from high-energy X-ray photons impinging on a two-phase front-illuminated CCD
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  Data: <searchLink fieldCode="AR" term="%22Levato%2C+T%2E%22">Levato, T.</searchLink><i> tadzio.levato@df.unipi.it</i><br /><searchLink fieldCode="AR" term="%22Labate%2C+L%2E%22">Labate, L.</searchLink><br /><searchLink fieldCode="AR" term="%22Galimberti%2C+M%2E%22">Galimberti, M.</searchLink><br /><searchLink fieldCode="AR" term="%22Giulietti%2C+A%2E%22">Giulietti, A.</searchLink><br /><searchLink fieldCode="AR" term="%22Giulietti%2C+D%2E%22">Giulietti, D.</searchLink><br /><searchLink fieldCode="AR" term="%22Gizzi%2C+L%2EA%2E%22">Gizzi, L.A.</searchLink>
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  Data: <searchLink fieldCode="DE" term="%22Spectrum+analysis+instruments%22">Spectrum analysis instruments</searchLink><br /><searchLink fieldCode="DE" term="%22Einstein-Podolsky-Rosen+experiment%22">Einstein-Podolsky-Rosen experiment</searchLink><br /><searchLink fieldCode="DE" term="%22Digital+cameras%22">Digital cameras</searchLink><br /><searchLink fieldCode="DE" term="%22Photons%22">Photons</searchLink>
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  Data: Abstract: A study of the single-photon events generated by the interaction of X-rays up to 60keV with a true two-phase charge coupled device (CCD) is reported. In particular, a relevant classification of the events is carried out according to their size and collected charge. This classification shows the occurrence of two main groups, characterized by a quite large difference in the ADU values that has been observed between events having different sizes but coming from photons with the same energy. Based upon 2D numerical calculations accounting for the charge cloud dynamics, diffusion and recombination, an explanation is suggested for this difference, arising from the difference in the electric field strength in the point of initial interaction. Moreover, the relative abundance of these two groups was found to be energy dependent. A model accounting for the true two-phase pixel structure was found to be a valid tool for a correct prediction of this abundance and an enhanced reconstruction of the spectra of the impinging photons. [Copyright &y& Elsevier]
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  Data: <i>Copyright of Nuclear Instruments & Methods in Physics Research Section A is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=33135374
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        Value: 10.1016/j.nima.2008.04.011
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      – Code: eng
        Text: English
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      – SubjectFull: Einstein-Podolsky-Rosen experiment
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      – SubjectFull: Digital cameras
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              Text: Jul2008
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