Simulating gamma-ray energy resolution in scintillators due to electron–hole pair statistics

Narayan, R. D.; Miranda, R.; Rez, Peter

doi:10.1016/j.nimb.2011.08.008

Cited by 4 publications

(3 citation statements)

References 34 publications

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“…Recently, it is possible to acquire emission electron energy loss spectra with acceptable energy resolutions. This allows the calculation of surface and bulk plasmon excitations as reported by Narayan et al [40,41]. In this case, we decided to use the dielectric function obtained from experimental reflection electron energy loss spectra by Werner et al [28], as it includes both the bulk and the surface contributions to the electronic excitation.…”

Section: Inelastic Scattering and Secondary Electron Generationmentioning

confidence: 99%

“…Using the formula ( 6), the ELF of Cu, Ag, and Au were cal culated and are shown in figure 4. While our electron loss functions are ultimately derived from reflection EELS mea surements, so that multiple scattering and surface losses overlap with the bulk electron loss function, we notice that recent transmission electron loss measurements [40,41] may have enough resolution and accuracy to separate the different components.…”

Section: Inelastic Scattering and Secondary Electron Generationmentioning

confidence: 99%

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Secondary electron emission and yield spectra of metals from Monte Carlo simulations and experiments

Azzolini

Angelucci

Cimino

et al. 2018

J. Phys.: Condens. Matter

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In this work, we present a computational method, based on the Monte Carlo statistical approach, for calculating electron energy emission and yield spectra of metals, such as copper, silver and gold. The calculation of these observables proceeds via the Mott theory to deal with the elastic scattering processes, and by using the Ritchie dielectric approach to model the electron inelastic scattering events. In the latter case, the dielectric function, which represents the starting point for the evaluation of the energy loss, is obtained from experimental reflection electron energy loss spectra. The generation of secondary electrons upon ionization of the samples is also implemented in the calculation. A remarkable agreement is obtained between both theoretical and experimental electron emission spectra and yield curves.

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Section: Inelastic Scattering and Secondary Electron Generationmentioning

confidence: 99%

Section: Inelastic Scattering and Secondary Electron Generationmentioning

confidence: 99%

Secondary electron emission and yield spectra of metals from Monte Carlo simulations and experiments

Azzolini

Angelucci

Cimino

et al. 2018

J. Phys.: Condens. Matter

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“…Today, this is an example of convincing evidence for the existence of the cerium 4f-5d exciton, which is observed in CeX 3 crystals (X = F, Cl, Br, I). Quantitative energy calculations of CeX 3 suitable for the analysis of emission transitions and the nature of transitions in the range of fundamental absorption are absent, but the available ones generally determine the regularities of the energy band formation in the CeF 3 crystals [ 43 , 44 , 45 , 46 , 47 , 48 ].…”

Section: Introductionmentioning

confidence: 99%

Energy Structure and Luminescence of CeF3 Crystals

et al. 2021

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The results of the calculation of the energy band structure and luminescent research of CeF3 crystals are presented. The existence of two 5d1 and 5d2 subbands of the conduction band genetically derived from 5d states of Ce3+ ions with different effective electron masses of 4.9 me and 0.9 me, respectively, is revealed. The large electron effective mass in the 5d1 subband facilitates the localization of electronic excitations forming the 4f-5d cerium Frenkel self-trapped excitons responsible for the CeF3 luminescence. The structure of the excitation spectra of the exciton luminescence peaked at 290 nm, and the defect luminescence at 340 nm confirms the aforementioned calculated features of the conduction band of CeF3 crystals. The peculiarities of the excitation spectra of the luminescence of CaF2:Ce crystals dependent on the cerium concentration are considered with respect to the phase formation possibility of CeF3.

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Rapid and robust radioisotopes identification algorithms of X-Ray and gamma spectra

El_Tokhy

2021

Measurement

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Simulating gamma-ray energy resolution in scintillators due to electron–hole pair statistics

Cited by 4 publications

References 34 publications

Secondary electron emission and yield spectra of metals from Monte Carlo simulations and experiments

Secondary electron emission and yield spectra of metals from Monte Carlo simulations and experiments

Energy Structure and Luminescence of CeF3 Crystals

Rapid and robust radioisotopes identification algorithms of X-Ray and gamma spectra

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