Semiconductor detector
View article: Simulation of Structural Effects on Detection Efficiency in P-Type Coaxial High-Purity Germanium Detectors Using the Monte Carlo Method
Simulation of Structural Effects on Detection Efficiency in P-Type Coaxial High-Purity Germanium Detectors Using the Monte Carlo Method Open
Determining the full-energy peak efficiency (FEPE) of a high-purity germanium (HPGe) detector through experimental methods or Monte Carlo (MC) simulations is crucial for accurate radionuclide quantification. This study presents a meticulou…
View article: Extraction of Electron and Hole Drift Velocities in Thin 4H-SiC PIN Detectors Using High-Frequency Readout Electronics
Extraction of Electron and Hole Drift Velocities in Thin 4H-SiC PIN Detectors Using High-Frequency Readout Electronics Open
Silicon carbide (SiC) has been widely adopted in the semiconductor industry, particularly in power electronics, because of its high temperature stability, high breakdown field, and fast switching speeds. Its wide bandgap makes it an intere…
View article: Evaluating the Effective Segregation Coefficient in High-Purity Germanium (HPGe) Crystals for Ge Detector Development in Rare-Event Searches
Evaluating the Effective Segregation Coefficient in High-Purity Germanium (HPGe) Crystals for Ge Detector Development in Rare-Event Searches Open
The performance and scalability of rare-event physics experiments depend on large-volume, detector-grade high-purity germanium (HPGe) crystals with precise control of impurity segregation during growth. We report a detailed study of impuri…
View article: Comparison of different X‐ray‐based scanning electron microscopy methods to detect sub‐nanometre ultra‐thin InAs layers deposited on top of GaAs
Comparison of different X‐ray‐based scanning electron microscopy methods to detect sub‐nanometre ultra‐thin InAs layers deposited on top of GaAs Open
We compare three different methods of X‐ray analysis in a scanning electron microscope (SEM): energy‐dispersive X‐ray spectroscopy (EDX), wavelength‐dispersive X‐ray spectroscopy (WDX) and micro X‐ray fluorescence (μXRF). These methods are…
View article: Cryogenic characterization of FBK NUV-HD-Cryo 3T SiPM sensors for the DUNE photon detection system
Cryogenic characterization of FBK NUV-HD-Cryo 3T SiPM sensors for the DUNE photon detection system Open
The Deep Underground Neutrino Experiment (DUNE) is a long-baseline neutrino experiment based in the USA and composed of a Near Detector (ND) complex at Fermi National Laboratory (FNAL), and a Far Detector (FD) complex located at the Sanfor…
View article: Galactic and extragalactic core-collapse supernova neutrino flux detection in the LEGEND muon veto
Galactic and extragalactic core-collapse supernova neutrino flux detection in the LEGEND muon veto Open
Parallel talk presented at the XXI International Workshop on Neutrino Telescopes - Padova 29 September - 3 October 2025 (https://agenda.infn.it/event/44606/) On behalf of the LEGEND Collaboration Abstract: The LEGEND Collaboration advances…
View article: Response characterization of Cosmic-Ray Neutron Sensors in neutron metrology reference fields
Response characterization of Cosmic-Ray Neutron Sensors in neutron metrology reference fields Open
Soil moisture is recognized as an Essential Climate Variable (ECV) by the World Meteorological Organization (WMO), as it plays a key role in hydrology, agriculture, and climate by regulating land–atmosphere interactions such as evapotransp…
View article: Galactic and extragalactic core-collapse supernova neutrino flux detection in the LEGEND muon veto
Galactic and extragalactic core-collapse supernova neutrino flux detection in the LEGEND muon veto Open
Parallel talk presented at the XXI International Workshop on Neutrino Telescopes - Padova 29 September - 3 October 2025 (https://agenda.infn.it/event/44606/) On behalf of the LEGEND Collaboration Abstract: The LEGEND Collaboration advances…
View article: Cryogenic characterization of FBK NUV-HD-Cryo 3T SiPM sensors for the DUNE photon detection system
Cryogenic characterization of FBK NUV-HD-Cryo 3T SiPM sensors for the DUNE photon detection system Open
The Deep Underground Neutrino Experiment (DUNE) is a long-baseline neutrino experiment based in the USA and composed of a Near Detector (ND) complex at Fermi National Laboratory (FNAL), and a Far Detector (FD) complex located at the Sanfor…
View article: First operation of poly(ethylene naphthalate) enclosures for high-purity germanium detectors in liquid argon for $^{42}$K/$^{42}$Ar mitigation
First operation of poly(ethylene naphthalate) enclosures for high-purity germanium detectors in liquid argon for $^{42}$K/$^{42}$Ar mitigation Open
Commercial argon contains cosmogenic $^{42}$Ar whose progeny $^{42}$K is a critical background component for the Large Enriched Germanium Experiment for Neutrinoless $ββ$ Decay (LEGEND). LEGEND operates High-Purity Germanium (HPGe) detecto…
View article: First operation of poly(ethylene naphthalate) enclosures for high-purity germanium detectors in liquid argon for $^{42}$K/$^{42}$Ar mitigation
First operation of poly(ethylene naphthalate) enclosures for high-purity germanium detectors in liquid argon for $^{42}$K/$^{42}$Ar mitigation Open
Commercial argon contains cosmogenic $^{42}$Ar whose progeny $^{42}$K is a critical background component for the Large Enriched Germanium Experiment for Neutrinoless $ββ$ Decay (LEGEND). LEGEND operates High-Purity Germanium (HPGe) detecto…
View article: Optimized production of dual-isotope sources for gamma detector calibration
Optimized production of dual-isotope sources for gamma detector calibration Open
Radioisotopes 152Eu and 154Eu are suitable options for calibrating HPGe detectors due to their long half-lives, high spectral purity, and distinct gamma lines. In this study, the production of these radioisotopes thro…
View article: Ultra-Low background germanium spectrometers at the China Jinping Underground Laboratory
Ultra-Low background germanium spectrometers at the China Jinping Underground Laboratory Open
Four ultra-low background germanium spectrometers, called GeTHU, have been installed at the first phase of China Jinping Underground Laboratory (CJPL-I), and served for material screening of dark matter and neutrino experiments. Recently, …
View article: Ultra-Low background germanium spectrometers at the China Jinping Underground Laboratory
Ultra-Low background germanium spectrometers at the China Jinping Underground Laboratory Open
Four ultra-low background germanium spectrometers, called GeTHU, have been installed at the first phase of China Jinping Underground Laboratory (CJPL-I), and served for material screening of dark matter and neutrino experiments. Recently, …
View article: Characterization of Low-energy Ionization Signals in Silicon Detectors for the Nab Experiment
Characterization of Low-energy Ionization Signals in Silicon Detectors for the Nab Experiment Open
The Nab (Neutron a b) experiment is designed to measure the beta-antineutrino angular correlation in free neutron $β$ decay with an ultimate precision goal of 0.1%, providing input for tests of Cabibbo-Kobayashi-Maskawa (CKM) matrix unitar…
View article: Characterization of Low-energy Ionization Signals in Silicon Detectors for the Nab Experiment
Characterization of Low-energy Ionization Signals in Silicon Detectors for the Nab Experiment Open
The Nab (Neutron a b) experiment is designed to measure the beta-antineutrino angular correlation in free neutron $β$ decay with an ultimate precision goal of 0.1%, providing input for tests of Cabibbo-Kobayashi-Maskawa (CKM) matrix unitar…
View article: Studying AC-LGAD strip sensors from laser and testbeam measurements
Studying AC-LGAD strip sensors from laser and testbeam measurements Open
This paper presents the setup assembled to characterize and measure the spatial and timing resolutions of AC-coupled Low Gain Avalanche Diodes (AC-LGADs), using a 1060 nm laser source to deposit initial charges with a defined calibration m…
View article: Studying AC-LGAD strip sensors from laser and testbeam measurements
Studying AC-LGAD strip sensors from laser and testbeam measurements Open
This paper presents the setup assembled to characterize and measure the spatial and timing resolutions of AC-coupled Low Gain Avalanche Diodes (AC-LGADs), using a 1060 nm laser source to deposit initial charges with a defined calibration m…
View article: A compact, easy-to-use leak detector for vacuum systems based on the MQ-8 sensor
A compact, easy-to-use leak detector for vacuum systems based on the MQ-8 sensor Open
This paper presents the development of a compact leak detector for vacuum systems that operates using hydrogen as a tracer gas, detected by a semiconductor MQ-8 sensor. The sensor is connected to an Arduino microcontroller, enabling digita…
View article: A compact, easy-to-use leak detector for vacuum systems based on the MQ-8 sensor
A compact, easy-to-use leak detector for vacuum systems based on the MQ-8 sensor Open
This paper presents the development of a compact leak detector for vacuum systems that operates using hydrogen as a tracer gas, detected by a semiconductor MQ-8 sensor. The sensor is connected to an Arduino microcontroller, enabling digita…
View article: Impact of reactor antineutrinos on the neutrino floor in low-mass WIMP-like dark matter searches
Impact of reactor antineutrinos on the neutrino floor in low-mass WIMP-like dark matter searches Open
The sensitivity of conventional direct dark matter searches for weakly interacting massive particles (WIMPs) is ultimately limited by coherent elastic neutrino-nucleus scattering (CEvNS), which produces nuclear recoils indistinguishable fr…
View article: Impact of reactor antineutrinos on the neutrino floor in low-mass WIMP-like dark matter searches
Impact of reactor antineutrinos on the neutrino floor in low-mass WIMP-like dark matter searches Open
The sensitivity of conventional direct dark matter searches for weakly interacting massive particles (WIMPs) is ultimately limited by coherent elastic neutrino-nucleus scattering (CEvNS), which produces nuclear recoils indistinguishable fr…
View article: Gaia: segmented germanium detector for high-energy X-ray fluorescence and spectroscopic imaging
Gaia: segmented germanium detector for high-energy X-ray fluorescence and spectroscopic imaging Open
We present Gaia, a monolithic array of 96 high-purity germanium pixel detectors integrated with a custom low-noise application-specific integrated circuit (ASIC) and a field-programmable gate array (FPGA)-based data acquisition system. The…
View article: Simulations of muon imaging with the LANL GMT detector for spent nuclear fuel cask content verification
Simulations of muon imaging with the LANL GMT detector for spent nuclear fuel cask content verification Open
Atmospheric muons are typically high energy, highly penetrating charged particles. They interact with matter primarily through multiple Coulomb scatterings. Muon scattering intensities can be used to characterize the density and atomic num…
View article: Testing the use of CXMS and DBS for weld inspection.
Testing the use of CXMS and DBS for weld inspection. Open
Mössbauer spectroscopy with scattered conversion X-ray registration (CXMS) and positron-electron annihilation (Doppler broadening spectroscopy) were tested with regard to their use in inspecting stainless steel welds. CXMS Mössbauer spectr…
View article: Testing the use of CXMS and DBS for weld inspection.
Testing the use of CXMS and DBS for weld inspection. Open
Mössbauer spectroscopy with scattered conversion X-ray registration (CXMS) and positron-electron annihilation (Doppler broadening spectroscopy) were tested with regard to their use in inspecting stainless steel welds. CXMS Mössbauer spectr…
View article: Pulse shape simulation for the reduced charge collection layer in p-type high-purity germanium detectors
Pulse shape simulation for the reduced charge collection layer in p-type high-purity germanium detectors Open
$P$-type high-purity germanium (HPGe) detectors are widely used across many scientific domains, and current data analysis methods have served well in many use cases. However, applications like low-background experiments that search for rar…
View article: Time-based Selection of Kaonic Atom X-ray Events with Quasi-Hemispherical CZT Detectors at the DAFNE collider
Time-based Selection of Kaonic Atom X-ray Events with Quasi-Hemispherical CZT Detectors at the DAFNE collider Open
This work presents the results of a time-based event selection for searching X-ray signals from kaonic atom X-ray transition using a single quasi-hemispherical Cadmium-Zinc-Telluride (CZT) detector at the DA$Φ$NE collider. To mitigate the …
View article: Pulse shape simulation for the reduced charge collection layer in p-type high-purity germanium detectors
Pulse shape simulation for the reduced charge collection layer in p-type high-purity germanium detectors Open
$P$-type high-purity germanium (HPGe) detectors are widely used across many scientific domains, and current data analysis methods have served well in many use cases. However, applications like low-background experiments that search for rar…
View article: Time-based Selection of Kaonic Atom X-ray Events with Quasi-Hemispherical CZT Detectors at the DAFNE collider
Time-based Selection of Kaonic Atom X-ray Events with Quasi-Hemispherical CZT Detectors at the DAFNE collider Open
This work presents the results of a time-based event selection for searching X-ray signals from kaonic atom X-ray transition using a single quasi-hemispherical Cadmium-Zinc-Telluride (CZT) detector at the DA$Φ$NE collider. To mitigate the …