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Nuclear Radiation Detectors and Sensors

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Physical Sensors".

Deadline for manuscript submissions: 31 July 2026 | Viewed by 2534

Special Issue Editor


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Guest Editor
1. Department of Physics and Earth Sciences, University of Ferrara, Via G. Saragat 1, 44122 Ferrara, Italy
2. INFN Ferrara Section, Via G. Saragat 1, 44122 Ferrara, Italy
Interests: geostatistical analysis; radioactivity; gamma spectrometry; environmental radioactivity; radiation detection; radiation physics

Special Issue Information

Dear Colleagues,

This Special Issue focuses on recent advances in nuclear radiation detectors and sensors, with particular emphasis on innovations in environmental applications, data analysis, and smart system integration. As radiation monitoring evolves beyond laboratory settings, new challenges and opportunities arise in the real-time detection and interpretation of radiometric data.

We welcome contributions exploring environmental radiation monitoring, the design and deployment of portable nuclear detectors, and improvements in detector calibration techniques. This Special Issue will also highlight developments in energy spectra analysis, including the use of deep learning algorithms for signal processing, which are redefining how radiation signatures are classified and understood.

Special attention will be given to research regarding IoT-integrated sensing systems and smart sensor networks, which enable continuous and distributed monitoring across large or inaccessible areas. The application of proximal and remote sensing for radiation mapping, particularly through drones or mobile platforms, is of growing interest for both scientific and operational use.

Finally, we encourage studies focused on real-time data analysis and radiological risk assessment which provide insights into how advanced detection systems can support decision-making in environmental protection, emergency response, and public safety.

Dr. Virginia Strati
Guest Editor

Manuscript Submission Information

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • environmental radiation monitoring
  • energy spectra analysis 
  • deep learning algorithms for signal processing
  • portable nuclear radiation detectors
  • detector calibration
  • real-time data analysis
  • IoT-integrated sensing systems
  • smart sensors network
  • proximal and remote sensing for radiation mapping
  • radiological risk assessment

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Published Papers (2 papers)

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Research

13 pages, 3673 KB  
Article
Design of a High-Speed Digital System for Triple Discrimination Based on Stilbene-6Li Glass Composite Scintillators Detector
by Qingyang Liu, Jiaqi Wang, Ye Chen, Zhiyuan Li, Zhenyu Wang, Hongzhao Zhou, Hengyi Su and Zungang Wang
Sensors 2026, 26(2), 690; https://doi.org/10.3390/s26020690 - 20 Jan 2026
Viewed by 519
Abstract
This paper presents a design for a high-speed digital prototype system for discriminating fast neutrons, thermal neutrons, and γ-rays. The system uses a stilbene–6Li glass composite scintillator with excellent pulse shape discrimination (PSD) properties as the neutron detector. The PSD performance [...] Read more.
This paper presents a design for a high-speed digital prototype system for discriminating fast neutrons, thermal neutrons, and γ-rays. The system uses a stilbene–6Li glass composite scintillator with excellent pulse shape discrimination (PSD) properties as the neutron detector. The PSD performance was investigated at different sampling rates, revealing stable performance at rates above 250 MSPS. The system core is a high-speed acquisition board based on the AD9434 analog-to-digital converter (ADC) and the ZYNQ7020 field-programmable gate array (FPGA), which acquires detector signals and implements real-time algorithms. The system was energy-calibrated with 22Na, 137Cs, and 60Co γ-ray sources and evaluated in a n–γ mixed field. Under an 241Am–Be neutron source, the system achieved Figure of Merit (FOM) values of 1.26 for fast neutron/γ, 2.18 for fast neutron/thermal neutron, and 3.25 for γ/thermal neutron discrimination above the 50 keVee electron equivalent energy threshold. These results are consistent with the analysis of down-sampled data from a DT-5730 digitizer, confirming that the system meets its design objectives. Additionally, the measured false alarm rates (FAR) were 0.33% for 60Co, 0.34% for 137Cs, and 0.26% for 22Na. This system integrates waveform discrimination and energy spectrum measurement capabilities, providing a high-performance, cost-effective electronic solution for high-speed signal acquisition and real-time processing in novel composite scintillator neutron detectors. Full article
(This article belongs to the Special Issue Nuclear Radiation Detectors and Sensors)
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11 pages, 2559 KB  
Article
Characterization of a 100 nm RADFET as a Proton Beam Detector
by J. A. Moreno-Pérez, I. Ruiz-García, R. Duane, P. Martín-Holgado, L. Morvaj, N. Vasovic, W. Hajdas, Y. Morilla and M. A. Carvajal
Sensors 2026, 26(1), 202; https://doi.org/10.3390/s26010202 - 27 Dec 2025
Viewed by 1002
Abstract
The RADFET VT06 developed by Varadis (Cork, Ireland), which is aimed at high-dose applications, mainly for spacecraft missions, has been characterized by low- and high-energy proton beams at two different facilities, the Accelerator National Centre (Sevilla, Spain) and the Paul Scherrer Institute (PSI) [...] Read more.
The RADFET VT06 developed by Varadis (Cork, Ireland), which is aimed at high-dose applications, mainly for spacecraft missions, has been characterized by low- and high-energy proton beams at two different facilities, the Accelerator National Centre (Sevilla, Spain) and the Paul Scherrer Institute (PSI) located in Villigen (Switzerland), using a reader unit system developed by the University of Granada (Spain). The devices have been characterized with proton energies of 1, 2, 3, 150, and 230 MeV, with accumulated doses from 130 to 512 Gy, where the RADFET was unbiased during the irradiation while the source voltage was measured before and after irradiation to monitor the radiation dose. Excellent linearity has been obtained with a minimum correlation factor R2 of 0.996, with a sensitivity that can vary from (0.691 ± 0.007) mV/Gy for 1 MeV to (1.143 ± 0.023) mV/Gy for 230 MeV without any build-up layer. An excellent stability was found in the studied cases, with dispersion being lower than 4% after a dose accumulation higher than 500 and 200 Gy for protons of 1 and 3 MeV, respectively. The detectors demonstrated linear responses, very low sensitivity dispersion per set of samples, and excellent stability after irradiation. This shows that, with an appropriate readout system, the RADFET can become an excellent system for high-dose proton beams. Full article
(This article belongs to the Special Issue Nuclear Radiation Detectors and Sensors)
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