Data and simulation studies on the influence of scintillation crystal dimensions on spectrometric parameters

Hamli, Abdelkader El; Bazza, Abdelkarim; Moussa, A.; Hamal, M.; Zerfaoui, Mustapha; Ouchrif, M.

doi:10.1016/j.apradiso.2021.110053

Cited by 4 publications

(3 citation statements)

References 24 publications

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“…Moreover, the energy resolution of the 2 inch scintillator in the three experimental control groups is smaller. In order to obtain better experimental results, our research was focused on 2 inch scintillators in this voltage range, which is consistent with the conclusion in previous studies [21].…”

Section: Experimental Data Analysissupporting

confidence: 85%

“…In this study, we utilized an experimental setup to obtain the energy spectrum of the NaI (Tl) scintillator detector [21][22][23]. Te experimental apparatus, as depicted in Figure 1, consisted of an opaque sealed lead box housing a photomultiplier tube (PMT) from Hamamatsu CR105-05 (Japan, which bias voltage is 400-1000 V) and a gamma-ray source.…”

Section: Methodsmentioning

confidence: 99%

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Effect of Photomultiplier Tube Voltage on the Performance of Sealed NaI (Tl) Scintillator Detectors

Zhou,

Liu,

Yuan

et al. 2024

Science and Technology of Nuclear Installations

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We explored the nonlinear characteristics of energy resolution (ER) for the sealed NaI (Tl) scintillator detector by using a gamma-ray spectroscopy system and Monte Carlo simulation. Our research focused on the two primary factors of energy resolution including the photomultiplier tube (PMT) voltage and the distance between the gamma-ray sources (137Cs and 60Co) and the scintillator detector. The experimental results showed that energy resolution decreased when the PMT voltage increased, and the energy resolution of NaI (Tl) detectors reached a smaller value (6.92%, 6.76%, and 6.56%), especially with the PMT voltage in the range of 575–595 V. In addition, a suitable distance between the gamma-ray source and the scintillator (5 cm) can also effectively reduce the energy resolution. We established the simulation models of the experimental NaI (Tl) detectors and simulated their energy spectra. The simulation results in the peak area agreed with the experimental results. A possible better PMT voltage choice has been proposed to obtain a smaller energy resolution.

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Section: Experimental Data Analysissupporting

confidence: 85%

Section: Methodsmentioning

confidence: 99%

Effect of Photomultiplier Tube Voltage on the Performance of Sealed NaI (Tl) Scintillator Detectors

Zhou,

Liu,

Yuan

et al. 2024

Science and Technology of Nuclear Installations

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“…For the second one, the crystal needed to detect the full energy peak at each gamma line, which required a large active volume. A Monte Carlo study showed that the energy resolution showed a significant decrease with detector size decrease [52]. As a primary investigation, we needed to compromise and assign priority to the first requirement.…”

Section: Methodsmentioning

confidence: 99%

Compact pixelated scintillator detector investigation for gamma ray detection

Wang,

Wu,

et al. 2024

Eng. Res. Express

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A scintillator is a luminescent material that converts high-energy photons into visible light and is widely used in medical imaging. The energy resolution, detection efficiency and position measurement of pixelated scintillators coupled to a SiPM were investigated via two kinds of detectors. The goal of this manuscript was to accurately measure the gamma source position through spectrum analysis in selection of energy windows for characteristic gamma lines. In this manuscript, scintillators were effectively manufactured and encapsulated before testing, especially for the easily deliquescent LaBr3. The compact front-end electronic prototype modules with 2×2 array SiPMs in stacked form and 1×10 array SiPMs in parallel form were developed for gamma ray energy resolution and efficiency measurements with a radioactive source of 22Na, which had two energy gamma lines at 511 keV and 1274 keV.

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NaI:Tl,6Li-PVT composite scintillator toward neutron and gamma discrimination

Tao

et al. 2022

Radiation Measurements

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Data and simulation studies on the influence of scintillation crystal dimensions on spectrometric parameters

Cited by 4 publications

References 24 publications

Effect of Photomultiplier Tube Voltage on the Performance of Sealed NaI (Tl) Scintillator Detectors

Effect of Photomultiplier Tube Voltage on the Performance of Sealed NaI (Tl) Scintillator Detectors

Compact pixelated scintillator detector investigation for gamma ray detection

NaI:Tl,6Li-PVT composite scintillator toward neutron and gamma discrimination

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