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View article: Proton Irradiation on Hydrogenated Amorphous Silicon Flexible Devices
Proton Irradiation on Hydrogenated Amorphous Silicon Flexible Devices Open
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View article: Unique Performance Considerations for Printable Organic Semiconductor and Perovskite Radiation Detectors: Toward Consensus on Best Practice Evaluation
Unique Performance Considerations for Printable Organic Semiconductor and Perovskite Radiation Detectors: Toward Consensus on Best Practice Evaluation Open
Metal halide perovskites and organic semiconductors have attracted intense interest for ionizing radiation detection due to their advantages of strong attenuation, low leakage currents, synthetic versatility, and simple device manufacturin…
View article: Hydrogenated Amorphous Silicon Charge-Selective Contact Devices on a Polyimide Flexible Substrate for Dosimetry and Beam Flux Measurements
Hydrogenated Amorphous Silicon Charge-Selective Contact Devices on a Polyimide Flexible Substrate for Dosimetry and Beam Flux Measurements Open
Hydrogenated amorphous silicon (a-Si:H) devices on flexible substrates are currently being studied for application in dosimetry and beam flux measurements. The necessity of in vivo dosimetry requires thin devices with maximal transparency …
View article: Cleopatra: a 12-channel recycling integrator ASIC for thereadout of hydrogenated amorphous silicon detectors in radiotherapy dosimetry
Cleopatra: a 12-channel recycling integrator ASIC for thereadout of hydrogenated amorphous silicon detectors in radiotherapy dosimetry Open
The Cleopatra ASIC is a 12-channel prototype ASIC for the readout of hydrogenated amorphous silicon sensors used for real-time dosimetry in radiation diagnostic and radiation therapy. The architecture is based on a current to frequency con…
View article: Proton irradiation on Hydrogenated Amorphous Silicon flexible devices
Proton irradiation on Hydrogenated Amorphous Silicon flexible devices Open
Radiation damage tests in hydrogenated amorphous silicon (a-Si:H) flexible flux and dose-measuring devices have been performed with a 3 MeV proton beam, to evaluate combined displacement and total ionizing dose damage. The tested devices h…
View article: Flexible Organic X‐Ray Sensors: Solving the Key Constraints of PET Substrates
Flexible Organic X‐Ray Sensors: Solving the Key Constraints of PET Substrates Open
Organic semiconductor‐based sensors are a unique class of wearable x‐ray detectors, as the response from their carbon‐based composition can mimic the response of the human body to radiation. A thin (260 nm) flexible P3HT: o‐IDTBR‐based org…
View article: Mobility Gaps of Hydrogenated Amorphous Silicon Related to Hydrogen Concentration and Its Influence on Electrical Performance
Mobility Gaps of Hydrogenated Amorphous Silicon Related to Hydrogen Concentration and Its Influence on Electrical Performance Open
This paper presents a comprehensive study of hydrogenated amorphous silicon (a-Si)-based detectors, utilizing electrical characterization, Raman spectroscopy, photoemission, and inverse photoemission techniques. The unique properties of a-…
View article: Dosimetry of microbeam radiotherapy by flexible hydrogenated amorphous silicon detectors
Dosimetry of microbeam radiotherapy by flexible hydrogenated amorphous silicon detectors Open
Objective. Detectors that can provide accurate dosimetry for microbeam radiation therapy (MRT) must possess intrinsic radiation hardness, a high dynamic range, and a micron-scale spatial resolution. In this work we characterize hydrogenate…
View article: A Front-End Circuit in 28 nm CMOS for Hydrogenated Amorphous Silicon Detectors in Clinical Dosimetry
A Front-End Circuit in 28 nm CMOS for Hydrogenated Amorphous Silicon Detectors in Clinical Dosimetry Open
This paper presents the design and the characterization of a front-end circuit, designed in 28 nm CMOS, for real-time dosimetry in radiation diagnostics and radiation therapy. The front-end circuit is optimized for sensors made of hydrogen…
View article: HASPIDE: a project for the development of hydrogenated amorphous silicon radiation sensors on a flexible substrate
HASPIDE: a project for the development of hydrogenated amorphous silicon radiation sensors on a flexible substrate Open
Hydrogenated amorphous silicon (a-Si:H) is a material with a very good radiation hardness and with the possibility of deposition on flexible substrates like Polyimide (PI). Exploiting these properties, the HASPIDE (Hydrogenated Amorphous S…
View article: Characterization of a flexible a‐Si:H detector for in vivo dosimetry in therapeutic x‐ray beams
Characterization of a flexible a‐Si:H detector for in vivo dosimetry in therapeutic x‐ray beams Open
Background The increasing use of complex and high dose‐rate treatments in radiation therapy necessitates advanced detectors to provide accurate dosimetry. Rather than relying on pre‐treatment quality assurance (QA) measurements alone, many…
View article: Characterization of Hydrogenated Amorphous Silicon Sensors on Polyimide Flexible Substrate
Characterization of Hydrogenated Amorphous Silicon Sensors on Polyimide Flexible Substrate Open
Hydrogenated amorphous silicon (a-Si:H) is a material having an intrinsically high radiation hardness that can be deposited on flexible substrates like Polyimide. For these properties a-Si:H can be used for the production of flexible senso…
View article: Preliminary Characterization of an Active CMOS Pad Detector for Tracking and Dosimetry in HDR Brachytherapy
Preliminary Characterization of an Active CMOS Pad Detector for Tracking and Dosimetry in HDR Brachytherapy Open
We assessed the accuracy of a prototype radiation detector with a built in CMOS amplifier for use in dosimetry for high dose rate brachytherapy. The detectors were fabricated on two substrates of epitaxial high resistivity silicon. The rad…
View article: Characterization of hydrogenated amorphous silicon sensors on polyimide flexible substrate
Characterization of hydrogenated amorphous silicon sensors on polyimide flexible substrate Open
Hydrogenated amorphous silicon (a-Si:H) is a material having an intrinsically high radiation hardness that can be deposited on flexible substrates like Polyimide. For these properties a-Si:H can be used for the production of flexible senso…
View article: DoseMRT: A Software Package for Individualised Monte Carlo Dose Calculations of Synchrotron-Generated Microbeam Radiation Therapy
DoseMRT: A Software Package for Individualised Monte Carlo Dose Calculations of Synchrotron-Generated Microbeam Radiation Therapy Open
This work describes the creation and experimental validation of DoseMRT, a new software package, and its associated workflow for dose calculations in synchrotron-generated broad beam and microbeam radiation treatment fields. The DoseMRT so…
View article: X-ray qualification of hydrogenated amorphous silicon sensors on flexible substrate
X-ray qualification of hydrogenated amorphous silicon sensors on flexible substrate Open
Hydrogenated amorphous silicon (a-Si:H) is a well known material for its radiation resistance and for the possibility of deposition on flexible substrates like Polyimide (PI), polyethylene terephthalate (PET) or polyethylene naphthalate (P…
View article: Hydrogenated amorphous silicon high flux x-ray detectors for synchrotron microbeam radiation therapy
Hydrogenated amorphous silicon high flux x-ray detectors for synchrotron microbeam radiation therapy Open
Objective . Microbeam radiation therapy (MRT) is an alternative emerging radiotherapy treatment modality which has demonstrated effective radioresistant tumour control while sparing surrounding healthy tissue in preclinical trials. This ap…
View article: A Hydrogenated amorphous silicon detector for Space Weather Applications
A Hydrogenated amorphous silicon detector for Space Weather Applications Open
The characteristics of a hydrogenated amorphous silicon (a-Si:H) detector are presented here for monitoring in space solar flares and the evolution of large energetic proton events up to hundreds of MeV. The a-Si:H presents an excellent ra…
View article: A Hydrogenated amorphous silicon detector for Space Weather Applications
A Hydrogenated amorphous silicon detector for Space Weather Applications Open
The characteristics of a hydrogenated amorphous silicon (a-Si:H) detector are presented here for monitoring in space solar flares and the evolution of large energetic proton events up to hundreds of MeV. The a-Si:H presents an excellent ra…
View article: Development of thin hydrogenated amorphous silicon detectors on a flexible substrate
Development of thin hydrogenated amorphous silicon detectors on a flexible substrate Open
The HASPIDE (Hydrogenated Amorphous Silicon PIxels DEtectors) project aims at the development of thin hydrogenated amorphous silicon (a-Si:H) detectors on flexible substrates (mostly Polyimide) for beam monitoring, neutron detection and sp…
View article: High-Resolution Photoemission Study of Neutron-Induced Defects in Amorphous Hydrogenated Silicon Devices
High-Resolution Photoemission Study of Neutron-Induced Defects in Amorphous Hydrogenated Silicon Devices Open
In this paper, by means of high-resolution photoemission, soft X-ray absorption and atomic force microscopy, we investigate, for the first time, the mechanisms of damaging, induced by neutron source, and recovering (after annealing) of p-i…
View article: Displacement damage in Hydrogenated Amorphous Silicon p-i-n diodes and charge selective contacts detectors.
Displacement damage in Hydrogenated Amorphous Silicon p-i-n diodes and charge selective contacts detectors. Open
Hydrogenated amorphous silicon is a well known detector material for its radiation resistance. This study concern 10 µm thickness, p-i-n and charge selective contacts planar diode detectors which were irradiated with neutrons at two fluenc…
View article: Displacement damage in Hydrogenated Amorphous Silicon p-i-n diodes and charge selective contacts detectors.
Displacement damage in Hydrogenated Amorphous Silicon p-i-n diodes and charge selective contacts detectors. Open
Hydrogenated amorphous silicon is a well known detector material for its radiation resistance. This study concern 10 µm thickness, p-i-n and charge selective contacts planar diode detectors which were irradiated with neutrons at two fluenc…
View article: Displacement damage in Hydrogenated Amorphous Silicon p-i-n diodes and charge selective contacts detectors.
Displacement damage in Hydrogenated Amorphous Silicon p-i-n diodes and charge selective contacts detectors. Open
Hydrogenated amorphous silicon is a well known detector material for its radiation resistance. This study concern 10 µm thickness, p-i-n and charge selective contacts planar diode detectors which were irradiated with neutrons at two fluenc…
View article: Testing of planar hydrogenated amorphous silicon sensors with charge selective contacts for the construction of 3D-detectors
Testing of planar hydrogenated amorphous silicon sensors with charge selective contacts for the construction of 3D-detectors Open
Hydrogenated Amorphous Silicon (a-Si:H) is a well known material for its intrinsic radiation hardness and is primarily utilized in solar cells as well as for particle detection and dosimetry. Planar p-i-n diode detectors are fabricated ent…
View article: Fabrication of a Hydrogenated Amorphous Silicon Detector in 3-D Geometry and Preliminary Test on Planar Prototypes
Fabrication of a Hydrogenated Amorphous Silicon Detector in 3-D Geometry and Preliminary Test on Planar Prototypes Open
Hydrogenated amorphous silicon (a-Si:H) can be produced by plasma-enhanced chemical vapor deposition (PECVD) of SiH4 (silane) mixed with hydrogen. The resulting material shows outstanding radiation hardness properties and can be deposited …