A doped-polymer based porous silicon photonic crystal sensor for the detection of gamma-ray radiation

Sayed, Fatma A.; El-Sayed, Hesham; Mehaney, Ahmed; Eissa, M. F.; Aly, Arafa H.

doi:10.1039/d2ra07637c

Cited by 11 publications

(4 citation statements)

References 59 publications

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“…5 and calculated by Eqs. (19)(20)(21)(22)(23)(24). Figure 5, shows the performance parameters at each pellet used as a defect versus the transverse velocity for each pellet.…”

Section: Numerical Resultsmentioning

confidence: 99%

“…The effectiveness and performance of any sensor type can be described by the values of many variables, including the sensitivity (S), the figure of merits (FOM), the quality factor (Q.F), the signal-to-noise ratio (SNR), the detection limit (DL), and the sensor resolution (SR) 19 , 20 , 27 , 49 , 54 . To obtain these parameters, the following equations can be utilized, where is the resonance frequency of the defect mode, and is the full width at half the maximum of the resonance frequency.…”

Section: Model Design and Basic Equationsmentioning

confidence: 99%

“…Today's biosensor technology has produced clever solutions and different methods for detecting numerous diseases, pharmaceutical liquids, petrochemicals, and even environmental pollutants at the lowest levels [16][17][18][19][20] . Although electronic sensors make up the majority of sensors in use nowadays, new applications have been developed to record mechanical or optical signals.…”

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confidence: 99%

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Monitoring and simulation of the fuel irradiation behavior in nuclear reactors based on phononic crystal structure

Sayed

El-Sayed

Eissa

et al. 2023

Sci Rep

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We have presented in the current work a novel idea for simulating the irradiation behaviors of the nuclear fuel pellets in nuclear reactors by using a one-dimensional defective phononic crystal (1D-DPnC) design was presented. The transmission spectra of the incident mechanical waves were considered basic data for expressing the characteristics of different nuclear fuel-pellets. Herein, the density, sound speed, and Young’s modulus of the fuel-pellets represent the key parameters that are influenced by the irradiation behaviors of these pallets. Mixed plutonium–uranium oxide (MOX) nuclear fuel is considered the main fuel in the present study. In addition, a comparison is performed for this fuel with other types of nuclear fuels. Moreover, the mechanical properties of these MOX-pellets are dependent on the porosity, the ratio of oxygen-to-metal (O/M), and the plutonium (Pu-content). The theoretical treatments depend on the transfers matrix method to compute the transmission spectra through the 1D-DPnC. The numerical findings provided that the MOX-pellet has the highest performance compared to other fuel pellets and with sensitivity equal to 59.388 × 103 Hz s/m. It was also reported that the effects of the percentage of the O/M and Pu- content in MOX had a minor effect in a comparison with the impact of porosity. The theoretical simulation agreed extremely with the experimental data reported for these nuclear fuels. Because of the close relationship between sound speed and density, this sensor can be utilized to monitor the porosity, O/M, Pu-content, and density of fuel-pellets as a quick and non-destructive evaluation technique in a nuclear fuel fabrication laboratory. This article has proven theoretically that MOX fuel produced from nuclear waste of uranium dioxide and plutonium dioxide gives excellent results compared to other types of nuclear fuels, and this agrees with experimental researches. Thus, it may contribute in preserving the environment from nuclear waste, and this can be considered a novel kind of purification of environmental pollution treatment.

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“…5 and calculated by Eqs. (19)(20)(21)(22)(23)(24). Figure 5, shows the performance parameters at each pellet used as a defect versus the transverse velocity for each pellet.…”

Section: Numerical Resultsmentioning

confidence: 99%

Section: Model Design and Basic Equationsmentioning

confidence: 99%

mentioning

confidence: 99%

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Monitoring and simulation of the fuel irradiation behavior in nuclear reactors based on phononic crystal structure

Sayed

El-Sayed

Eissa

et al. 2023

Sci Rep

Self Cite

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“…They have infiltrated the pours of porous silicon 1D DPhC with crystal violet and carbon fuchsine. The periodicity of the structure has been broken by adding defect layer of poly-vinyl alcohol polymer at the middle of the structure 31 . Ayman et al also investigated a pressure sensing hetero-structured ternary photonic crystal whose silicon dioxide and porous silicon layers have embedded quantum dots for amplify the sensitivity of the structure 32 .…”

Section: Introductionmentioning

confidence: 99%

Biophotonic sensor for swift detection of malignant brain tissues by using nanocomposite YBa2Cu3O7/dielectric material as a 1D defective photonic crystal

Malek

Abdallah

Kumar

et al. 2023

Sci Rep

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In the present research work we have theoretically examined the biosensing capabilities of proposed one dimensional defective photonic crystal for swift detection of malignant brain tissues. The transfer matrix formulation and MATLAB computational tool have been used to examine the transmission properties of proposed structure. The identical buffer layers of nanocomposite superconducting material have been used either side of cavity region to enhance the interaction between incident light and different brain tissue samples poured into the cavity region. All the investigations have been carried out under normal incidence to suppress the experimental liabilities involved. We have investigated the biosensing performance of the proposed design by changing the values of two internal parameters (1) the cavity layer thickness (d4) and (2) volume fraction (η) of nanocomposite buffer layers one by one to get the optimum biosensing performance from the structure. It has been found that the sensitivity of the proposed design becomes 1.42607 μm/RIU when the cavity region of thickness 15dd is loaded with lymphoma brain tissue. This value of sensitivity can be further increased to 2.66136 μm/RIU with η = 0.8. The findings of this work are very beneficial for designing of various bio-sensing structures composed of nanocomposite materials of diversified biomedical applications.

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Passive Dosimeters for Radiation Dosimetry: Materials, Mechanisms, and Applications

Yang,

Vrielinck,

Jacobsohn

et al. 2024

Adv Funct Materials

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Passive dosimeters enabling accurate measurement of doses from gamma rays to visible light are necessary to ensure efficient utilization of electromagnetic radiation in numerous fields like medical diagnostics and industrial manufacturing. The specific requirements for dosimeters in terms of dosimetry range, sensitivity, accuracy, and stability for each application have led to the development of various dosimeters based on new materials and new mechanisms. Here, a comprehensive review of different types of dosimeters classified according to the response signal, namely electron paramagnetic resonance, electrical, and optical, is provided. This review starts with a general introduction to dosimetry, a classification of dosimeters, and an elucidation of the necessity of dosimeters in various ranges of the electromagnetic spectrum. This is followed by an overview of the fundamental requirements of dosimeters, an explanation of the general dosimetry procedure, and the dosimetric quantities. Emphasis is given to the working mechanism, the design concept, and applications of each type of dosimeter as well as their respective strengths and drawbacks. Challenges and prospects are presented at the end of the review. This review provides an insightful overview of the material‐mechanism‐characteristics‐application relationship of different types of dosimeters that hopefully can serve as inspiration for the development of new devices.

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A doped-polymer based porous silicon photonic crystal sensor for the detection of gamma-ray radiation

Abstract: In this research, a theoretical investigation of the one-dimensional defective photonic crystals is considered for the detection of gamma-ray radiation.

Cited by 11 publications

References 59 publications

Monitoring and simulation of the fuel irradiation behavior in nuclear reactors based on phononic crystal structure

Monitoring and simulation of the fuel irradiation behavior in nuclear reactors based on phononic crystal structure

Biophotonic sensor for swift detection of malignant brain tissues by using nanocomposite YBa2Cu3O7/dielectric material as a 1D defective photonic crystal

Passive Dosimeters for Radiation Dosimetry: Materials, Mechanisms, and Applications

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