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Ramesh Rijal (School of Physics, University of Melbourne)6/8/26, 2:00 PMRadiation detection and spectrometryOral Presentation
We report the experimental discovery of Hidden Satellites within the Mn Kα₁,₂ emission lines, with statistical significance reaching over 20 σ per data point, enabled by our in-house eXtended-Range High-Energy-Resolution Fluorescence Detection (XR-HERFD) technique at the I20-Scanning beamline (Diamond Light Source). Our new development of a binary data splicing methodology, combined with...
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Cristiana Magalhães Correia Rodrigues (FCUL/LIP/C2TN), Dr João Gentil Saraiva (LIP)6/8/26, 2:15 PMRadiation detection and spectrometryOral Presentation
Understanding the radiation effects at the microscale is essential for advancing cancer treatment strategies such as hadron therapy, which requires new developments in dosimetry to accurately map the cell-level energy distribution and assess the contribution from secondary particles. Herein, luminescence-based dosimetry has gained increasing attention. Thermoluminescence (TL) and optically...
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42. Implementation of a Real-time Pulse Pileup Correction Algorithm for High Rate Gamma SpectroscopyKostandinos Gianicos (McMaster University)6/8/26, 2:30 PMRadiation detection and spectrometryOral Presentation
Gamma-ray spectroscopy of radiation fields is constrained by pulse pileup. Conventional acquisition systems rely on pileup rejection (PUR), which maintains energy resolution while introducing significant dead-time. This is unacceptable when measurement times are limited and statistical accuracy is crucial. To enable spectroscopy of high activity radiation fields, we developed a pulse pileup...
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Pavel Novotný (Czech Technical University in Prague, Faculty of Nuclear Sciences and Physical Engineering)6/8/26, 2:45 PMRadiation detection and spectrometryOral Presentation
X-ray fluorescence (XRF) spectroscopy is a well-established and versatile analytical tool for determining elemental composition. However, conventional XRF techniques provide only depth-averaged information, which limits their suitability for stratified samples where depth-resolved spectral data are crucial.
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Confocal micro-XRF analysis overcomes this limitation by employing a geometric... -
Pia Kahle (Dresden University of Technology)6/8/26, 3:00 PMRadiation detection and spectrometryOral Presentation
In the framework of the EBENE project TU Dresden aims to verify simulations of nuclear dismantling situations. Therefore the activation of concrete and steel samples is experimentally studied. Concrete samples are activated in a neutron reference field with a fluence rate of 2·10⁵ cm⁻² s⁻¹. Depending on the composition and mass of the sample, activities of only a few Becquerel are achieved for...
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Saqr Alshogeathri (King Abdulaziz City for Science and Technology)6/8/26, 3:15 PMRadiation detection and spectrometryOral Presentation
This work proposes a novel indirect detection strategy in which ionizing radiation (gamma and alpha) is converted into infrared (IR) or near-infrared (NIR) photons using secondary radio-luminescent materials that are optically coupled to existing commercial IR-triggered dosimetry systems. Instead of modifying certified detection devices, the concept introduces an external radiation-to-IR...
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Benoit Lefebvre (Extreme Light Infrastructure ERIC)6/10/26, 2:00 PMRadiation detection and spectrometryOral Presentation
Pulsed radiation fields are becoming increasingly prevalent in medical applications, industrial imaging, and at high-power laser facilities. Their fast time structure and extreme instantaneous dose rates pose challenges for accurate dosimetry, often causing pile-up effects and detector saturation in conventional monitoring systems. Even instruments specifically designed for pulsed fields...
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Petr Průša (Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague)6/10/26, 2:15 PMRadiation detection and spectrometryOral Presentation
InGaN/GaN multiple quantum wells (MQW) heterostructures exhibit a truly unique set of scintillation properties, both highly advantageous and detrimental. Scintillation efficiency is high, emission is nicely spectrally matched to common photomultipliers and SiPMs, and, most importantly, the emission is ultra-fast with decay time around 1 ns. On the other hand, the maximum thickness of the...
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Thomas Kormoll (Technische Universität Dresden)6/10/26, 2:30 PMRadiation detection and spectrometryOral Presentation
Tissue equivalency in terms of mass energy-absorption coefficients is particularly important in operational radiation protection, as the energy of the incident radiation field can vary significantly. In this regard, air would be nearly ideal as a detector material—were it not for its low density, which severely limits the number of interactions in practical radiation protection scenarios....
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Ms Ema-Nicoleta Adam6/10/26, 2:45 PMRadiation detection and spectrometryOral Presentation
Beryllium oxide (BeO) has gained increasing attention due to its strong optically stimulated luminescence (OSL) properties, tissue equivalence, ease of readout and favourable response across a wide energy range (30 keV – 6 MeV). However, BeOSL performance in the high-energy range requires further validation to ensure measurement accuracy in high-energy radiation fields. This study evaluates...
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Josep M Martí-Climent (Clínica Universidad de Navarra), Carles Domingo (Universitat Autonoma de Barcelona)6/10/26, 3:00 PMRadiation detection and spectrometryOral Presentation
Neutron detector performance is usually assessed below 10 MeV, well under the 230 MeV maximum used in proton therapy. This study evaluated five active neutron H(10) detectors in a proton therapy facility.
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Methods
Irradiations were performed with the gantry at 270° in pencil-beam-scanning mode, simulating a treatment layer plan (10×10cm²) in a solid-water phantom.
H(10) was measured... -
Carles Domingo (Universitat Autonoma de Barcelona)6/10/26, 3:15 PMRadiation detection and spectrometryOral Presentation
During proton therapy, neutrons originate by interaction of the protons in the beam with any material that they could find along their path to the patient’s treatment volume. This includes accelerator elements present in the beam line, potential beam deviations leading to collisions with the beam pipe or other accelerator elements and, the patient’s tissues. The resulting neutron field...
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Benjamin Dyer (McMaster University)6/11/26, 2:00 PMRadiation detection and spectrometryOral Presentation
A compact beta spectrometer (10×10×12 cm$^3$) has been developed for electron spectrometry in challenging radiation environments, including low Earth orbit and nuclear reactor interiors, where intense gamma backgrounds complicate spectral measurements. The spectrometer uses a telescopic configuration of single-area silicon detectors, allowing the gamma field to be discriminated against while...
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Dr Alvaro de Farias Soares (University of Palermo)6/11/26, 2:15 PMRadiation detection and spectrometryOral Presentation
Alanine, as measured by electron paramagnetic resonance (EPR), has long been employed in medical dosimetry as either a secondary standard or a transfer dosimeter, due to its linear dose response over a wide absorbed-dose range, soft-tissue equivalence, and independence from dose rate. However, advances in radiotherapy, e.g., novel radiation qualities and delivery techniques, necessitate...
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Ariel Tarifeno-Saldivia (Instituto de Fisica Corpuscular (CSIC-UV)), Mrs Benedetta Brusasco (Institut de Tècniques Energètiques, Universitat Politècnica de Catalunya)6/11/26, 2:30 PMRadiation detection and spectrometryOral Presentation
Monitoring neutron ambient dose equivalent H*(10) is a key requirement for radiation protection in a wide range of facilities, including nuclear industry, research accelerators, and modern medical facilities. Commercial ambient neutron dosimeters currently available were mostly designed in the late 1990s and early 2000s, presenting well-known limitations in portability, energy response...
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