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Radiation Sensors and Detectors: Materials, Principles and Applications (2nd Edition)
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Radiation Sensors and Detectors: Materials, Principles and Applications (2nd Edition)

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

Deadline for manuscript submissions: 30 June 2025 | Viewed by 2985

Special Issue Editors

Dr. Michael Moll

E-Mail Website
Guest Editor
CERN, Organisation Europenne pour la Recherche Nucléaire, CH-1211 Geneva, Switzerland
Interests: silicon detectors; material characterization; detectors; semiconductor; experimental physics; high energy physics; experimental particle physics; solid state physics; experimental nuclear physics
Special Issues, Collections and Topics in MDPI journals
Dr. Xin Shi

E-Mail Website
Guest Editor
Institute of High Energy Physics, Chinese Academy of Sciences, 19B Yuquan Road, Shijingshan District, Beijing 100049, China
Interests: radiation-hard detectors for future collider experiments; silicon sensors; wide-bandgap semiconductor; SiC; 3D devices; LGAD; diamond
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Radiation sensors and detectors are widely used in fundamental physics, nuclear reactors, aerospace science, medicine, environmental monitoring, etc. One of the most important aspects of these application areas is the extremely harsh radiation environment, driven by the next-generation fusion energy reactors and future high-energy particle detectors. It is crucial to develop radiation-resistant, easy-to-operate, high-spatial/temporal-resolution devices that can survive in environments with high radiation fluences and high temperatures, as expected in plasma diagnostics and high-energy particle collisions. Solid-state sensors, especially wide-bandgap semiconductors, are good candidates for these applications.

This Special Issue is the second edition addressed to all types of solid-state sensors designed for extremely harsh environments. The first edition can be found here: https://www.mdpi.com/journal/sensors/special_issues/RSDMPA.

Dr. Michael Moll
Dr. Xin Shi
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sensors is an international peer-reviewed open access semimonthly journal published by MDPI.

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

  • solid-state detectors (SSDs)
  • silicon detectors
  • wide-bandgap (WBG) semiconductors
  • radiation-hard diamond
  • SiC
  • 3D
  • LGAD
  • extreme fluences
  • plasma diagnostics

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Published Papers (4 papers)

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Research

14 pages, 5389 KiB  
Article
Impact of the Guard Rings on Self-Induced Signal and Leakage Current in Trench-Isolated Low Gain Avalanche Diodes
by Gordana Lastovicka-Medin, Gregor Kramberger, Jiri Kroll and Mateusz Rebarz
Sensors 2025, 25(10), 3006; https://doi.org/10.3390/s25103006 - 10 May 2025
Viewed by 276
Abstract
In this contribution, we explored the interplay of guard ring (GR) configuration and isolation structures, as well as irradiation effects, which all together create a rich landscape of phenomena such as self-induced signals (“ghosts”) in trench-isolated Low-Gain Avalanche Diodes (TI-LGADs). The ghost effect [...] Read more.
In this contribution, we explored the interplay of guard ring (GR) configuration and isolation structures, as well as irradiation effects, which all together create a rich landscape of phenomena such as self-induced signals (“ghosts”) in trench-isolated Low-Gain Avalanche Diodes (TI-LGADs). The ghost effect is related to the increased surface current due to presence of SiO2 trenches (and defects) in studied diodes, but it is also affected by interplay between the guard ring(s) and the n+ bias ring, implanted in inter-pixel region of these devices. In double-trenched sensors, the n+ bias ring is inserted in between the two trenches. We present the investigation on the role of these structures on the self-induced signals in trench-isolated sensors from two different productions (RD50 and AIDAinnova). The sensors from the first production have multiple guard rings, whereas the second type of devices feature only one. Detailed examination of the ghost effect and leak current was performed when guard rings were left floating or connected to the pixels (brought to the same potential). The results show that guard ring configuration in trenched sensors can be critical for the leak current and the presence of a ghost signal. To our best knowledge, the latter problem has not been investigated yet. Full article
(This article belongs to the Special Issue Radiation Sensors and Detectors: Materials, Principles and Applications (2nd Edition))
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17 pages, 5779 KiB  
Article
Enhanced Readout System for Timepix3-Based Detectors in Large-Scale Scientific Facilities
by Petr Burian, Benedikt Bergmann, Pavel Broulím, Martin Farkaš, Tomáš Kulhánek, Petr Mánek, Ondřej Růžička, Petr Smolyanskiy, Ondřej Urban and Jan Zich
Sensors 2025, 25(6), 1860; https://doi.org/10.3390/s25061860 - 17 Mar 2025
Viewed by 523
Abstract
This work presents a novel readout system for the Timepix3-based detector, designed specifically for large-scale facilities, such as particle accelerators. The authors begin by outlining the challenges associated with utilizing the Timepix3 detector over long distances. This paper proposes a solution to these [...] Read more.
This work presents a novel readout system for the Timepix3-based detector, designed specifically for large-scale facilities, such as particle accelerators. The authors begin by outlining the challenges associated with utilizing the Timepix3 detector over long distances. This paper proposes a solution to these challenges and describes its practical implementation. Beam test results are provided to demonstrate the system’s performance, with a particular focus on time-of-flight measurements. Additionally, the authors address the complexities of operating in challenging environments, particularly those involving radiation and magnetic fields. Full article
(This article belongs to the Special Issue Radiation Sensors and Detectors: Materials, Principles and Applications (2nd Edition))
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12 pages, 2699 KiB  
Article
TCAD Simulation of Two Photon Absorption—Transient Current Technique Measurements on Silicon Detectors and LGADs
by Sebastian Pape, Michael Moll, Marcos Fernández García and Moritz Wiehe
Sensors 2024, 24(24), 8032; https://doi.org/10.3390/s24248032 - 16 Dec 2024
Viewed by 936
Abstract
Device simulation plays a crucial role in complementing experimental device characterisation by enabling deeper understanding of internal physical processes. However, for simulations to be trusted, experimental validation is essential to confirm the accuracy of the conclusions drawn. In the framework of semiconductor detector [...] Read more.
Device simulation plays a crucial role in complementing experimental device characterisation by enabling deeper understanding of internal physical processes. However, for simulations to be trusted, experimental validation is essential to confirm the accuracy of the conclusions drawn. In the framework of semiconductor detector characterisation, one powerful tool for such validation is the Two Photon Absorption-Transient Current Technique (TPA-TCT), which allows for highly precise, three-dimensional spatially-resolved characterisation of semiconductor detectors. In this work, the TCAD framework Synopsys Sentaurus is used to simulate depth-resolved TPA-TCT data for both p-type pad detectors (PINs) and Low Gain Avalanche Detectors (LGADs). The simulated data are compared against experimentally measured TPA-TCT results. Through this comparison, it is demonstrated that TCAD simulations can reproduce the TPA-TCT measurements, providing valuable insights into the TPA-TCT itself. Another significant outcome of this study is the successful simulation of the gain reduction mechanism, which can be observed in LGADs with increasing densities of excess charge carriers. This effect is demonstrated in an p-type LGAD with a thickness of approximately 286 µm. The results confirm the ability of TCAD to model the complex interaction between carrier dynamics and device gain. Full article
(This article belongs to the Special Issue Radiation Sensors and Detectors: Materials, Principles and Applications (2nd Edition))
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18 pages, 12318 KiB  
Article
Field Test of the MiniRadMeter Gamma and Neutron Detector for the EU Project CLEANDEM
by Marco Ripani, Fabio Rossi, Luigi Cosentino, Fabio Longhitano, Paolo Musico, Mikhail Osipenko, Gaetano Elio Poma and Paolo Finocchiaro
Sensors 2024, 24(18), 5905; https://doi.org/10.3390/s24185905 - 11 Sep 2024
Viewed by 816
Abstract
In the framework of the H2020 CLEANDEM project, a small robotic vehicle was equipped with a series of different sensors that were developed for the preliminary inspection of areas possibly contaminated by radiation. Such unmanned inspection allows to identify dangerous locations prior to [...] Read more.
In the framework of the H2020 CLEANDEM project, a small robotic vehicle was equipped with a series of different sensors that were developed for the preliminary inspection of areas possibly contaminated by radiation. Such unmanned inspection allows to identify dangerous locations prior to the possible start of human operations. One of the developed devices, named the MiniRadMeter, is a compact low-cost sensor that performs gamma and neutron radiation field mapping in the environment. The MiniRadMeter was successfully tested in a simulated field mission with four “hidden” radioactive sources and a neutron generator. In this work, we describe the test procedure and the results, which were supported by the outcome of dedicated Monte Carlo simulations. Full article
(This article belongs to the Special Issue Radiation Sensors and Detectors: Materials, Principles and Applications (2nd Edition))
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