2025-05-17
06:55 |
TlCl:Be,I: A High Sensitivity Scintillation and Cherenkov Radiator for TOF-PET
/ Kratochwil, Nicolaus (CERN ; UC, Davis) ; Kaneshige, Nathaniel (Everett Comm. Coll.) ; Terragni, Giulia (CERN ; TU Vienna) ; Cala, Roberto (CERN ; INFN, Milan Bicocca) ; Schott, Jared (Everett Comm. Coll.) ; Loef, Edgar van (Everett Comm. Coll.) ; Pandian, Lakshmi Soundara (Everett Comm. Coll.) ; Roncali, Emilie (UC, Davis) ; Glodo, Jaroslaw (Everett Comm. Coll.) ; Auffray, Etiennette (CERN) et al.
The material requirements for gamma-ray detectors for medical imaging applications are multifold and sensitivity is often overlooked. High effective atomic number (Z eff ) Cherenkov radiators have raised the attention in the community due to their potential for harvesting prompt photons. [...]
2025 - 8 p.
- Published in : IEEE Trans. Rad. Plasma Med. Sci. 9 (2025) 296-303
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2025-05-17
06:55 |
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2025-05-17
06:55 |
Helicopter Turboshaft Engines’ Neural Network System for Monitoring Sensor Failures
/ Vladov, Serhii (Unlisted, UA) ; Ścisło, Łukasz (Cracow Tech. U.) ; Szczepanik-Ścisło, Nina (Cracow Tech. U. ; CERN) ; Sachenko, Anatoliy (Unlisted, UA) ; Perzyński, Tomasz (Unlisted, PL) ; Vasylenko, Viktor (Unlisted, UA) ; Vysotska, Victoria (Lviv Polytechnic Inst. ; Osnabruck U.)
An effective neural network system for monitoring sensors in helicopter turboshaft engines has been developed based on a hybrid architecture combining LSTM and GRU. This system enables sequential data processing while ensuring high accuracy in anomaly detection. [...]
2025 - 36 p.
- Published in : Sensors 25 (2025) 990
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2025-05-17
06:55 |
Neural Network Method of Controllers’ Parametric Optimization with Variable Structure and Semi-Permanent Integration Based on the Computation of Second-Order Sensitivity Functions
/ Vladov, Serhii (Unlisted, UA) ; Scislo, Lukasz (Cracow Tech. U.) ; Szczepanik-Ścisło, Nina (Cracow Tech. U. ; CERN) ; Sachenko, Anatoliy (Unlisted, UA ; Unlisted, PL) ; Vysotska, Victoria (Unlisted, UA)
This article presents a method for researching processes in automatic control systems based on the operator approach for modelling the control object and the controller. Within the method framework, a system of equations has been developed that describes the relations between the control error, the reference and control action, the output coordinate and the controller and the control object operators. [...]
2025 - 30 p.
- Published in : Appl. Sciences 15 (2025) 2586
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2025-05-17
06:55 |
Impact of the drift length on the performance of MR-ToF devices
/ Maier, F M (CERN ; Greifswald U. ; TRIUMF ; Unlisted, US) ; Buchinger, F (McGill U.) ; Costa, B Arderucio (Troy U.) ; Heylen, H (CERN) ; Kanitz, C (CERN) ; Kwiatkowski, A A (TRIUMF) ; Lagaki, V (CERN ; Greifswald U.) ; Lechner, S (CERN) ; Leistenschneider, E (CERN ; LBNL, Berkeley) ; Neyens, G (CERN ; Leuven U.) et al.
Multi-Reflection Time-of-Flight (MR-ToF) devices are powerful tools for high-precision mass spectrometry, highly selective and high-flux mass separation as well as, most recently, for highly sensitive laser spectroscopic applications. In this work, various ion-optical simulations are conducted to provide insights into optimizing the design of the MR-ToF apparatus to enhance performance across its diverse application fields. [...]
2025
- Published in : Nucl. Instrum. Methods Phys. Res., A 1075 (2025) 170365
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2025-05-17
06:55 |
Lessons learnt from manufacturing—Forging of tokamak components
/ Sgobba, Stefano (CERN) ; Santillana, Ignacio Aviles (CERN) ; Ruiz-Palenzuela, Berta (CERN ; Carlos III U., Madrid) ; Castro, Enrique Rodriguez (CERN ; Carlos III U., Madrid) ; Knaster, Juan (Euratom, St. Paul Lez Durance) ; Schild, Thierry (Euratom, St. Paul Lez Durance) ; Han, Shiqiang (Euratom, St. Paul Lez Durance) ; Rossano, Graham (Oak Ridge, U.S. ITER) ; Libeyre, Paul (Euratom, St. Paul Lez Durance) ; Beemsterboer, Cornelis (Euratom, St. Paul Lez Durance)
Large structural forgings play a crucial role in the construction of fusion reactors and their superconducting magnet structures. The material challenges of such forged components are addressed, requiring a wide application of tightly specified stainless steel and Nickel-base superalloy products and grades, featuring a controlled microstructure and adequate mechanical, physical, magnetic and vacuum properties over a wide temperature range. [...]
2025
- Published in : Fusion Eng. Des. 212 (2025) 114869
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2025-05-16
07:37 |
Using the potential of nano-tubes as GEM-holes
/ Kalkan, Y (CERN ; Abant Izzet Baysal U.) ; Lök, R (Abant Izzet Baysal U.) ; Kandeğer, Y (Abant Izzet Baysal U.) ; Kösemen, A (CERN ; Istanbul U., Cerrahpaşa) ; Öztürk, S (CERN ; Istanbul U., Cerrahpaşa)
Nanotube configurations are two primary one-dimensional nanostructures that have garnered significant raised because of their unique features and extensive application potential. This research utilized a methodical approach to create and assess the performance of nano-GEM foils, which integrated aluminum oxide nanotubes within porous aluminum oxide matrices. [...]
2025 - 5 p.
- Published in : JINST 20 (2025) C05005
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2025-05-16
07:37 |
A Sensor Employing an Array of Silicon Photomultipliers for Detection of keV Ions in Time-of-Flight Mass Spectrometry
/ Mariscal-Castilla, Antonio (Barcelona U.) ; Piller, Markus (CERN) ; Alozy, Jerome (CERN) ; Ballabriga, Rafael (CERN) ; Campbell, Michael (CERN) ; de la Torre, Oscar (Barcelona U.) ; Gascón, David (Barcelona U.) ; Gómez, Sergio (Barcelona, Polytechnic U.) ; Heathcote, David (Oxford U.) ; Mauricio, Joan (Barcelona U.) et al.
Pixellated scintillation detectors have the potential to overcome several limitations of conventional microchannel-plate-based detectors employed in time-of-flight mass spectrometry (ToF-MS), such as extending detector lifetime, reducing vacuum requirements, or increasing the ion throughput. We have developed a prototype comprising a fast organic scintillator (Exalite 404) coupled to an array of 16 silicon photomultipliers (SiPMs), with read-out electronics based on the FastIC application-specific integrated circuit (ASIC). [...]
2025 - 17 p.
- Published in : Sensors 25 (2025) 1585
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2025-05-16
07:11 |
A multi-domain physics-informed neural network for transient thermal analysis of a Tokamak divertor
/ Rahman, Habib Ur (PIEAS, Islamabad) ; Hussain, Abid (PIEAS, Islamabad ; CERN) ; Ilyas, Muhammad (PIEAS, Islamabad) ; Ahmed, Manzoor (PIEAS, Islamabad) ; Rehman, Haseeb ur (PIEAS, Islamabad)
In this study, a Multi-Domain Physics-Informed Neural Network (MD-PINN) framework is implemented to model a multi-layer transient heat conduction problem with complex boundary conditions in an upgraded mockup of the Pakistan Spherical Tokamak divertor configuration. Automatic differentiation is employed to compute the spatial and temporal derivatives of the temperature field, which are essential for enforcing the residuals of the governing equations, initial conditions, boundary conditions, and interface conditions in the loss function. [...]
2025 - 11 p.
- Published in : Fusion Eng. Des. 216 (2025) 115036
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2025-05-16
07:11 |
Metascintillator pulse feature and shape analysis to detect photoelectric interactions and energy sharing
/ Konstantinou, G (Valencia U., IFIC) ; Latella, R (Valencia U., IFIC) ; Molliner, L (Valencia U., IFIC) ; Zhang, L (Valencia U., IFIC) ; Benlloch, J M ; Gonzalez, A J ; Lecoq, P (Valencia U., IFIC ; CERN)
Metascintillators are scintillator topologies whose principle is based on sharing the energy of an impinging gamma ray between their composing materials. These can be a dense crystal such as LYSO or BGO to retain a high gamma absorption probability, and a fast-emitting compound such as BC-422, EJ232 or BaF2 contributing to its light production kinetics. [...]
2025 - 12 p.
- Published in : JINST 20 (2025) C03021
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