Optimization of the parameters of power sources excited by β-radiation

Bulyarskiy, S. V.; Lakalin, A. V.; Abanin, I. E.; Amelichev, V. V.; Svetuhin, V. V.

doi:10.1134/s1063782617010055

Cited by 9 publications

(7 citation statements)

References 7 publications

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“…In comparison with gas-filled or scintillation detectors, semiconductors have a lower energy requirement for charged particle detection resulting in superior energy resolution [48]. They now have a number of applications in medical imaging, dosimetry, power generation and high-energy radiation experiments [49,50,51,52].…”

Section: Pin Photodiodesmentioning

confidence: 99%

Detection of strontium-90, a review and the potential for direct in situ detection

Turkington

Gamage

Graham

2018

2018 IEEE Nuclear Science Symposium and Medical Imaging Conference Proceedings (NSS/MIC)

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Strontium-90 is one of the primary beta-emitting radionuclides found at nuclear decommissioning sites. Monitoring its activity in the environment is of utmost importance given its radiotoxicity. Current procedures for the beta detection of strontium-90 are time consuming, produce secondary waste and expensive. There is a demand for real-time in situ radiostrontium monitoring in groundwater at nuclear decommissioning sites. This paper presents a review of existing techniques for strontium-90 monitoring and examines a novel approach through direct beta detection with a gallium arsenide photodiode based detector. A proof of concept detector was modelled in the physics simulation software, Geant4, and evaluated as candidate for in situ detection of beta emitting radionuclides. The simulation results indicate that the detector is physically capable of counting 89.86% of incident 0.546 MeV electrons from a 1 mm range in water. This validation will provide the basis for further development of an in situ beta detector.

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Section: Pin Photodiodesmentioning

confidence: 99%

Detection of strontium-90, a review and the potential for direct in situ detection

Turkington

Gamage

Graham

2018

2018 IEEE Nuclear Science Symposium and Medical Imaging Conference Proceedings (NSS/MIC)

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“…Concentrations of point defects in the crystal at temperature T can be determined by minimizing the free energy as a function of the defects concentration [12]:…”

Section: Calculation Of Point Defects Concentrationsmentioning

confidence: 99%

Intrinsic Point Defects of Samarium Monosulphide Crystals in Metal Phase

Horichok¹,

Shevchuk²,

Parashchuk³

et al. 2017

ChChT

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“…This procedure is based on Monte Carlo simulation of the distribution of the rate of generation of excess carriers over depth and measurement of the converter parameters necessary for calculating the collection probability in a scanning electron microscope (SEM). The Monte Carlo simulation program developed in [8,9] took into account the distribution of β particles in terms of emission angles, radioactive film thickness, and energy, as well as absorption in a radioisotope film [10], which ensured a more accurate calculation compared to that obtained by approximate methods [11][12][13][14][15]. This procedure was applied to calculate the parameters of a betavoltaic cell based on a POLIKARPOV, YAKIMOV silicon converter and a radioactive 63 Ni source with an activity of 10 mCi/cm 2 [16].…”

Section: Introductionmentioning

confidence: 99%

Simulation of the Properties of Betavoltaic Cells Based on Silicon and 63Ni Enriched Film

Polikarpov

Yakimov

2019

J. Synch. Investig.

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Using a previously developed procedure for predicting the parameters of betavoltaic cells, we carry out calculations for cells based on a radioactive film enriched with 63 Ni up to 50% and real silicon structures, namely, a Ni/n-Si Schottky barrier and a p + -n diode. The procedure includes Monte Carlo calculation of the depth-dependent rate of the generation of β radiation by excess carriers and an experimental determination by SEM of the probability of their collection for specific structures. The need for such calculations is associated with the development of new possibilities of nickel enrichment with a radioactive isotope. We obtain achievable values of the short-circuit current, open-circuit voltage, filling factor, and cell power, which allows not only prediction of the parameters of such cells but also optimization of their structure. It is most expedient to use optimized p-n junctions in such cells.

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Optimization of the parameters of power sources excited by β-radiation

Cited by 9 publications

References 7 publications

Detection of strontium-90, a review and the potential for direct in situ detection

Detection of strontium-90, a review and the potential for direct in situ detection

Intrinsic Point Defects of Samarium Monosulphide Crystals in Metal Phase

Simulation of the Properties of Betavoltaic Cells Based on Silicon and 63Ni Enriched Film

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