Analytical Description of Avalanche Photodiode Characteristics. An Overview: Part II

Burlakov, I. D.; Filachev, A. M.; Kholodnov, V. A.

doi:10.1134/s1064226918090061

Cited by 4 publications

(2 citation statements)

References 8 publications

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“…Photosensitivity considers the amount to which an object reacts upon receiving photons and it equals SI(λ) = λ 2 π. To calculate this characteristic, we need to find the quantum efficiency η of the avalanche photodiode which symbolizes the photon flux that contributes to the photocurrent in a photodiode then we can conduct the noise spectral density [3].…”

Section: Theory and Resultsmentioning

confidence: 99%

Dark current behaviour analysis for avalanche photodiodes

Douhan¹,

Коханенко²,

Lozovoy³

2022

8th International Congress on Energy Fluxes and Radiation Effects

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This paper deals with the results of serial of analytical calculations which have been done on an avalanche photodiode made of germanium with silicon quantum dots (QD) which has multilayers of QDs to determine its characteristics. In these calculations we focus on the main parameters that determine the performance of avalanche photodiode such as tunneling current, photosensitivity, multiplication factor, noise spectral density and avalanche noise factor. The study also compares the results of germanium silicon avalanche photodiode with other avalanche photodiodes made with different materials. The model which has been used for calculation is considered with a separated absorption and multiplication regions operation under several conditions varied between classical and Geiger mode.

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Section: Theory and Resultsmentioning

confidence: 99%

Dark current behaviour analysis for avalanche photodiodes

Douhan¹,

Коханенко²,

Lozovoy³

2022

8th International Congress on Energy Fluxes and Radiation Effects

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“…In traditional scintillation detectors, NaI(Tl) crystals are adopted as scintillators and photomultiplier tubes (PMT) are used as optical-electrical converters [5]. A PMT is a vacuum device with large volume, low quantum efficiency, narrow range of spectral response and mechanically fragile.…”

Section: Introductionmentioning

confidence: 99%

Energy spectrum response of a CsI(Tl) detector read out by an APD

Li¹,

Liangquan²,

Kun-Sun³

et al. 2020

J. Inst.

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To study the energy spectrum response of a CsI(Tl) detector, we fabricated a new scintillation detector by coupling a CsI (Tl) crystal with an avalanche photodiode (APD) . Then, we designed a new low-noise readout circuit for the detector. Finally, we analyzed the effects of both temperature and bias voltage on the energy spectrum response and evaluated the capability to identify nuclides by connecting the detector to the readout circuit. The research showed that the noise of the readout circuit was 608e, with the noise slope being 5.71e/pF . At 20̂C, the detector achieved an excellent bias stability, the energy resolution reached an optimal value of 5.24% at a bias voltage of 370 V, thus proving a satisfactory performance. The signal-noise ratio reached 19:1 and the rise time of the output signals was 84 ns. The detector achieved an excellent energy spectrum response to 137Cs, 152Eu and 226Ra radioactive sources, demonstrating a strong capability of nuclide recognition distinguishing clearly each energy peak.

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