Latest developments in room-temperature semiconductor neutron detectors: Prospects and challenges

Liu, Linyue; Ouyang, Xiaolong; Gao, Runlong; Wan, Pengying; Ouyang, Xiaoping

doi:10.1007/s11433-022-2021-6

Cited by 11 publications

(3 citation statements)

References 128 publications

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“…Radiation dose detectors, acquiring crucial energy information on nuclear radiation (X/γ-rays, neutrons, charged particles, etc. ), play an important role in nuclear protection, human cancer therapy, and nuclear accident early warning. − Various detectors (i.e., semiconductor detectors, scintillator detectors, and ionization chambers) have been developed with different principles of measurements and designs, but the application is limited by their respective problems. − Air-filled ionization chambers, which are the golden standard in X/γ-ray dose monitoring, are widely used owing to their high sensitivity, broad measuring range, and stable response but suffer from all-known problems of frequent air density corrections, a high working voltage, and a long stability time. , Therefore, all-solid-state radiation dose detectors based on high-performance materials and structures are in high demand and worthy of in-depth study.…”

Section: Introductionmentioning

confidence: 99%

Ultrabroad Dynamic All-Solid-State Radiation Dose Detector Based on a 0D Cs₃Cu₂I₅ Perovskite-Like Single Crystal

Song,

Liu,

Wan

et al. 2023

ACS Appl. Electron. Mater.

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Section: Introductionmentioning

confidence: 99%

Ultrabroad Dynamic All-Solid-State Radiation Dose Detector Based on a 0D Cs₃Cu₂I₅ Perovskite-Like Single Crystal

Song,

Liu,

Wan

et al. 2023

ACS Appl. Electron. Mater.

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“…[9] The high penetration ability of fast neutron brings big challenge to detect fast neutron effectively and precisely. Scintillator detectors and semiconductor detectors [10][11][12] are widely used in fast neutron detection, with scintillator detectors being the preferred choice due to their higher detection efficiency and larger sensitive volume. Neutron scintillator is a crucial component in neutron scintillator detectors, where recoil protons are typically produced through elastic scattering between fast neutrons and hydrogen nuclei.…”

Section: Introductionmentioning

confidence: 99%

2D Perovskite Neutron Scintillators with Nanosecond Time Resolution and Linearity Energy Response

Wan,

Jin,

Gao

et al. 2023

Adv Funct Materials

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Fast and high‐linearity detection of fast neutron is vital for special nuclear material seeking, nuclear accident emergency response, nondestructive neutron imaging, and neutron cancer therapy. Neutron scintillators with fast time resolution and linear energy response are indispensable for precisely acquiring the energy and temporal evolution of fast neutron, but none of the conventional neutron scintillators, whether organic, two‐component or inorganic, have performed well in this regard. To address these challenges, it is urgent to develop novel neutron scintillators. Here, 2D hybrid perovskite single crystals (C4H12N)2PbBr4 (BA2PbBr4) successfully combined with fast response time of 2.66 ns and linear energy response to fast neutrons, γ ray, and α particle, is reported. The rapid response time and linear energy response of 2D hybrid perovskite scintillator originate from intensive states density of lead halide frameworks, which are the key fluorescence emitters under neutron irradiation. This effectively suppresses the ionization quenching effect during the fluorescence process. This work represents a milestone in fast neutron detection, demonstrating a new type of neutron scintillator based on 2D hybrid perovskite single crystals with fast and high‐linearity detection characteristics, having great potential in high precision neutron spectrum measurement and nuclear reaction kinetics monitoring.

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“…As a consequence of a great variety of radiation-induced defects, not all of them have been comprehensively studied experimentally and theoretically up to now. Knowledge of the formation, modification and structure of the radiation defects is important for the assessment of the stability of diamond radiation detectors [7][8][9][10], first-order phase transition diamond-graphite under radiation damage, and diamond treatment (modification of color) in jewelry. Of special interest are defects both in untreated and irradiated diamonds, which show features in optical absorption and luminescence spectra.…”

Section: Introductionmentioning

confidence: 99%

IR Spectroscopy of Vacancy Clusters (Amber Centers) in CVD Diamonds Nanostructured by Fast Neutron Irradiation

Khomich

Хмельницкий

Kozlova

et al. 2023

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We investigated the IR absorption spectra of CVD diamond damaged by fast neutrons (>0.1 MeV) with high fluences ranging from 1 × 1018 to 2 × 1019 cm−2 and annealed at temperatures of 200 °C to 1680 °C. After annealing above 1000 °C, the formation of “amber-centers” (ACs), associated with multivacancy clusters, is detected as deduced from the appearance of a strong absorption line at 4100 cm−1. Moreover, the concentration of the ACs in the irradiated diamond can be an order of magnitude higher than that observed previously in the darkest brown natural diamonds. A number of other absorption lines, including the H1b center at 4936 cm−1 (0.612 eV) and new lines at ~5700 cm−1 (0.706 eV) and 9320 cm−1 (1.155 eV) not reported before in the literature, are observed, and their intensity evolutions at annealing temperatures are documented. At the highest fluences, all the lines show reduced intensities and broadening and spectral shifts due to a very high defect concentration and partial amorphization. The obtained experimental data can be used for the analysis of defect generation, transformations and healing in irradiated synthetic and natural diamonds.

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Latest developments in room-temperature semiconductor neutron detectors: Prospects and challenges

Cited by 11 publications

References 128 publications

Ultrabroad Dynamic All-Solid-State Radiation Dose Detector Based on a 0D Cs₃Cu₂I₅ Perovskite-Like Single Crystal

Ultrabroad Dynamic All-Solid-State Radiation Dose Detector Based on a 0D Cs₃Cu₂I₅ Perovskite-Like Single Crystal

2D Perovskite Neutron Scintillators with Nanosecond Time Resolution and Linearity Energy Response

IR Spectroscopy of Vacancy Clusters (Amber Centers) in CVD Diamonds Nanostructured by Fast Neutron Irradiation

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Latest developments in room-temperature semiconductor neutron detectors: Prospects and challenges

Cited by 11 publications

References 128 publications

Ultrabroad Dynamic All-Solid-State Radiation Dose Detector Based on a 0D Cs3Cu2I5 Perovskite-Like Single Crystal

Ultrabroad Dynamic All-Solid-State Radiation Dose Detector Based on a 0D Cs3Cu2I5 Perovskite-Like Single Crystal

2D Perovskite Neutron Scintillators with Nanosecond Time Resolution and Linearity Energy Response

IR Spectroscopy of Vacancy Clusters (Amber Centers) in CVD Diamonds Nanostructured by Fast Neutron Irradiation

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Ultrabroad Dynamic All-Solid-State Radiation Dose Detector Based on a 0D Cs₃Cu₂I₅ Perovskite-Like Single Crystal

Ultrabroad Dynamic All-Solid-State Radiation Dose Detector Based on a 0D Cs₃Cu₂I₅ Perovskite-Like Single Crystal