Article
Chemistry, Multidisciplinary
Shanshan Liu, Xue Han, Yuchao Chai, Guangjun Wu, Weiyao Li, Jiangnan Li, Ivan da Silva, Pascal Manuel, Yongqiang Cheng, Luke L. Daemen, Anibal J. Ramirez-Cuesta, Wei Shi, Naijia Guan, Sihai Yang, Landong Li
Summary: Efficient separation of acetylene and carbon dioxide was achieved under ambient conditions using faujasite zeolites decorated with atomically-dispersed copper(II) sites. The system displayed an unprecedented separation factor and effective dynamic uptake of acetylene, offering high purity acetylene recovery.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Polymer Science
Magdalena Witek, Maciej Krzystyniak, Giovanni Romanelli, Teresa Witczak
Summary: This study utilizes a combination of experimental techniques to investigate the glass transition of dry rice pasta, revealing its nearly completely amorphous nature, with the glass transition occurring between 40 and 60 degrees Celsius. Changes in the secondary structure of starch within the pasta, along with partial loss of long-range order provided by the polymer structure, are also observed during the transition.
Article
Chemistry, Multidisciplinary
Haiwang Yong, Daniel Keefer, Shaul Mukamel
Summary: In this theoretical study, a novel measurement is proposed to directly monitor the evolving nuclear wave packet and unambiguously image photochemical events in real time. By subtracting ultrafast gas-phase X-ray and electron diffraction signals, the nuclear charge densities can be singled out, revealing the shape and trajectory of the nuclear wave packets as well as the electronic coherences near conical intersections.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Shieren Sumarli, Efthymios Polatidis, Florencia Malamud, Matteo Busi, Claire Navarre, Reza Esmaeilzadeh, Roland Loge, Markus Strobl
Summary: Spatially resolved studies of crystalline structures, such as lattice spacings, can be conducted using neutron Bragg edge imaging. However, extracting strain distribution becomes challenging when the strain varies across the thickness of the probed specimen. This study introduces an approach to separate the transmission spectra of two different material states, which is particularly useful for operando strain characterization in powder bed additive manufacturing environments.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Ceramics
Matheus Pianassola, Kaden L. Anderson, Joshua Safin, Can Agca, Jake W. McMurray, Bryan C. Chakoumakos, Joerg C. Neuefeind, Charles L. Melcher, Mariya Zhuravleva
Summary: The challenge of growing rare-earth sesquioxide crystals can be overcome by tailoring their structural stability and melting point. This study contributes to the advancement of crystal growth of high-entropy oxides.
JOURNAL OF ADVANCED CERAMICS
(2022)
Article
Materials Science, Multidisciplinary
A. Sazonov, H. Thoma, R. Dutta, M. Meven, A. Gukasov, R. Fittipaldi, V. Granata, T. Masuda, B. Nafradi, V. Hutanu
Summary: A detailed investigation of the low-temperature magnetoelectric state of Ba2MnGe2O7 was performed using neutron diffraction and magnetization measurements. The study revealed that Ba2MnGe2O7 does not undergo a structural phase transition between 10 K and 2.5 K and exhibits antiferromagnetic order. The magnetic structure of Ba2MnGe2O7 also differs from that of other materials.
Article
Microscopy
Magnus Nord, Juri Barthel, Christopher S. Allen, Damien McGrouther, Angus Kirkland, Ian MacLaren
Summary: Higher order Laue zone (HOLZ) rings in high energy electron diffraction exhibit specific structures for individual atom columns, showing varying strengths, structures, and radii. Atomic resolution STEM datasets can be used to investigate the 3D periodicity of crystalline materials effectively, as demonstrated in a perovskite trilayer structure.
Article
Physics, Multidisciplinary
M. Krzystyniak, M. J. Gutmann, K. Refson, G. Romanelli, S. Rudic, S. C. Capelli, D. Fortes, O. Magdysyuk, J. I. Marquez Damian, G. Maciel-Pereira
Summary: This study investigates the interplay between phonon anharmonicity and nuclear quantum effects in hexamethylenetetramine (HMT) and its deuterated counterpart (DHMT) using a combination of experimental techniques and theoretical calculations. The results show that the combined effects of isotopic substitution, temperature, anharmonicity, and nuclear quantum effects lead to systematic discrepancies between theoretical predictions and experimental data. Additionally, a significant effect known as the reverse Ubbelohde effect, where deuteration decreases hydrogen bond length in HMT, is observed.
Review
Physics, Multidisciplinary
Jacopo Bertolotti, Ori Katz
Summary: This review summarizes the techniques used to overcome scattering in optical imaging, including physical correction and computational inversion methods. The study shows that the effects of scattering in different fields of imaging are fundamentally equivalent and can be translated to each other.
Article
Chemistry, Analytical
Sudipta S. Mukherjee, Rohit Bhargava
Summary: Infrared (IR) spectroscopic imaging provides spatially resolved molecular absorption spectra, and this study introduces a fast and reliable method based on a phasor representation of spectra. The method is applicable for rapid data exploration and analysis of IR imaging data, and shows potential in biomedical tissue imaging.
ANALYTICAL CHEMISTRY
(2023)
Article
Multidisciplinary Sciences
Yide Zhang, Binglin Shen, Tong Wu, Jerry Zhao, Joseph C. Jing, Peng Wang, Kanomi Sasaki-Capela, William G. Dunphy, David Garrett, Konstantin Maslov, Weiwei Wang, Lihong V. Wang
Summary: This study demonstrates the use of differentially enhanced compressed ultrafast photography (Diff-CUP) to directly visualize ultrafast phenomena in biology and physics. It successfully captures the propagations of passive current flows and electromagnetic pulses at extreme speeds, providing a powerful tool for investigating these processes.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Hiroshi Mizoguchi, Sang-Won Park, Hideo Hosono
Summary: Transition metals, including platinum group carbonyl complexes, are important catalysts with theoretical and practical value, successfully applied in many organic synthesis reactions and reactions of oxidizing olefin compounds.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Optics
KyeoReh Lee, Jun Lim, Su Yong Lee, YongKeun Park
Summary: Coherent speckle-correlation imaging (CSI) utilizes a designed X-ray diffuser to retrieve the complex sample field from a single shot measurement, achieving high-resolution imaging without any assumptions on the samples or measurements. The spatial resolution of CSI reaches 13.9 nm at 5.46 keV, surpassing the feature size of the diffuser used (300 nm). The high-resolution imaging capability of CSI is theoretically explained, and it is expected to be a versatile tool for exploring the nanometer world.
LIGHT-SCIENCE & APPLICATIONS
(2023)
Article
Physics, Multidisciplinary
Minghui Zhang, Huazhe Wei, Xianlong Liu, Bernhard J. Hoenders, Lina Guo, Yangjian Cai
Summary: The author predicted in [Opt. Lett. 38, 4023-4025 (2013)] that low coherent X-rays would have difficulty providing high-resolution diffraction patterns from objects with spatially periodic structures, which would greatly limit X-ray crystallography and similar techniques. In this letter, it is indicated that the Ghost diffraction technique can overcome this bottleneck by taking advantage of low coherence. Analytical formulas for calculating ghost diffraction patterns diffracted by periodic structured media under any coherent state are derived.
FRONTIERS IN PHYSICS
(2022)
Article
Chemistry, Physical
Brian C. Sales, William R. Meier, David S. Parker, Li Yin, Jiaqiang Yan, Andrew F. May, Stuart Calder, Adam A. . Aczel, Qiang Zhang, Haoxiang Li, Turgut Yilmaz, Elio Vescovo, Hu Miao, Duncan H. Moseley, Raphael P. Hermann, Michael A. . McGuire
Summary: The kagome metal CoSn has been studied and shown to have flat electronic bands, but electronic instabilities are not realized due to the complete filling of the bands. By replacing Sn with In in CoSn1-xInx, the chemical potential is moved into the flat band region, resulting in the emergence of antiferromagnetic order. This work provides clear evidence that chemically manipulating flat bands in bulk crystals can control correlated ground states.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Youngju Kim, Jacopo Valsecchi, Ohsung Oh, Jongyul Kim, Seung Wook Lee, Francois Boue, Evelyne Lutton, Matteo Busi, Christopher Garvey, Markus Strobl
Summary: Scattering studies of milk and milk products are important for understanding the microscopic structural differences between dairy samples, which determine the physical properties and consumer experience. This study explores the potential of small-angle neutron scattering and neutron dark-field imaging to investigate the structures of fat globules and milk gel.
APPLIED SCIENCES-BASEL
(2022)
Article
Chemistry, Physical
Mohd Izrul Izwan Ramli, Mohd Arif Anuar Mohd Salleh, Mohd Mustafa Al Bakri Abdullah, Ikmal Hakem Aziz, Tan Chi Ying, Noor Fifinatasha Shahedan, Winfried Kockelmann, Anna Fedrigo, Andrei Victor Sandu, Petrica Vizureanu, Jitrin Chaiprapa, Dumitru Doru Burduhos Nergis
Summary: Geopolymer materials are low-carbon construction materials. Alkali-activated kaolin, a type of geopolymer material, is a viable alternative for high-strength ceramics. This study analyzed the sintering process and pore structure of alkali-activated kaolin, revealing the effects of different sintering temperatures on pore distribution.
Article
Chemistry, Multidisciplinary
Matteo Busi, Marie-Christine Zdora, Jacopo Valsecchi, Michael Bacak, Markus Strobl
Summary: Neutron dark-field imaging is a powerful tool for characterizing microstructural features of materials and components. A novel achromatic technique based on a single absorption grating has been introduced for concurrent measurement of attenuation, dark-field and differential phase contrast. By using grating-detector distances beyond the resolution limit, the range of measurable length scales in dark-field measurements can be significantly extended.
APPLIED SCIENCES-BASEL
(2022)
Article
Multidisciplinary Sciences
Josefin Martell, Carl Alwmark, Luke Daly, Stephen Hall, Sanna Alwmark, Robin Woracek, Johan Hektor, Lukas Helfen, Alessandro Tengattini, Martin Lee
Summary: This study explores the three-dimensional distribution of hydrous phases within the nakhlite meteorite and reveals that the alteration is localized and of short duration. This implies that habitable environments could not have been sustained on Mars during the Amazonian period.
Article
Chemistry, Multidisciplinary
Ala'a M. Al-Falahat, Nikolay Kardjilov, Robin Woracek, Mirko Boin, Henning Markoetter, Luise Theil Kuhn, Malgorzata Makowska, Markus Strobl, Beate Pfretzschner, John Banhart, Ingo Manke
Summary: A systematic study was conducted to investigate the effect of temperature on neutron transmission signals. The study compared experimentally determined neutron attenuation spectra for a martensitic steel at various temperatures with simulated data. The analysis showed that elastic and inelastic scattering can be distinguished based on changes in attenuation coefficients caused by temperature. This study presents a quantitative approach to understand this effect and can be used to correct measurements taken during in situ heat treatments.
JOURNAL OF APPLIED CRYSTALLOGRAPHY
(2022)
Article
Materials Science, Multidisciplinary
Khanh Van Tran, Robin Woracek, Nikolay Kardjilov, Henning Markoetter, Daniel Abou-Ras, Stephen Puplampu, Christiane Foerster, Dayakar Penumadu, Carl F. O. Dahlberg, John Banhart, Ingo Manke
Summary: In this study, wavelength-selective neutron tomography was used for three-dimensional characterization of phase distributions in metastable austenitic stainless steel samples. It was found that accurate quantitative results can be obtained if the samples do not exhibit significant preferential grain orientation. The results obtained by neutron tomography were verified and explained using optical microscopy, electron backscatter diffraction, and finite element modeling. The study demonstrates the capability of neutron tomography to extend microstructure characterization methods to the meso- and macroscale.
MATERIALS & DESIGN
(2022)
Article
Chemistry, Physical
Christopher J. Garvey, Saffron J. Bryant, Aaron Elbourne, Taavi Hunt, Ben Kent, Martin Kreuzer, Markus Strobl, Roland Steitz, Gary Bryant
Summary: The maintenance of plasma membrane structure is crucial for cell viability. However, the macroscopic phase separation observed during dehydration and freezing can lead to cell death. Previous studies have shown that POPC can function as a line-active component in lipid vesicles, inhibiting macroscopic phase separation and stabilizing membrane microdomains. However, our research found that under reduced hydration, POPC cannot stabilize microdomains in various model membrane systems.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Florencia Malamud, Javier Roberto Santisteban, Miguel Angel Vicente Alvarez, Matteo Busi, Efthymios Polatidis, Markus Strobl
Summary: This paper presents a model for describing the attenuation coefficient of textured polycrystalline materials based on a single-crystal to polycrystalline approach. The model evaluates the Bragg contribution to the attenuation coefficient as a combination of the Bragg-reflected component of imperfect single crystals with different orientations. The model's optimization is demonstrated through experiments on calibration samples and its ability to simulate textured samples in different orientations.
JOURNAL OF APPLIED CRYSTALLOGRAPHY
(2023)
Article
Materials Science, Multidisciplinary
Shieren Sumarli, Efthymios Polatidis, Florencia Malamud, Matteo Busi, Claire Navarre, Reza Esmaeilzadeh, Roland Loge, Markus Strobl
Summary: Spatially resolved studies of crystalline structures, such as lattice spacings, can be conducted using neutron Bragg edge imaging. However, extracting strain distribution becomes challenging when the strain varies across the thickness of the probed specimen. This study introduces an approach to separate the transmission spectra of two different material states, which is particularly useful for operando strain characterization in powder bed additive manufacturing environments.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
M. Busi, E. Polatidis, C. Sofras, P. Boillat, A. Ruffo, C. Leinenbach, M. Strobl
Summary: Non-destructive characterization methods play a crucial role in studying the mechanism of phase transformations in materials. In this study, a non-destructive technique using polarized neutrons is introduced to quantitatively map the spatial distribution of magnetic phases.
MATERIALS TODAY ADVANCES
(2022)
Article
Multidisciplinary Sciences
Daniel O'Flynn, Anna Fedrigo, Laura Perucchetti, Aurelia Masson-Berghoff
Summary: Animal mummification was common in ancient Egypt, with animal remains often placed inside statues or votive boxes. A previous study using X-ray computed tomography on sealed copper alloy votive boxes resulted in poor image quality. This study used neutron tomography to examine six votive boxes and found animal remains and textile fragments inside three boxes. The study also uncovered evidence of the manufacturing process and repairs of the boxes, as well as significant quantities of lead. The findings demonstrate the effectiveness of neutron tomography for studying mummified remains in sealed metal containers.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Multidisciplinary
Marin Nikolic, Alessia Cesarini, Emanuel Billeter, Fabian Weyand, Pavel Trtik, Markus Strobl, Andreas Borgschulte
Summary: This study investigates the working conditions of commercial Ni-mischmetal hydride batteries using non-destructive and high-resolution methods. By combining neutron radiography and tomography with electrical monitoring of the state of charge, the exchange and transport of hydrogen can be tracked in real time. The study reveals that the charging state of the battery affects the generation of hydrogen gas.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Multidisciplinary Sciences
Matteo Busi, Jiazhou Shen, Michael Bacak, Marie Christine Zdora, Jan Capek, Jacopo Valsecchi, Markus Strobl
Summary: This study introduces a novel multi-directional neutron dark-field imaging approach that utilizes a single absorption grating to simultaneously probe multiple scattering directions. The method successfully resolves the microstructural properties of materials and overcomes limitations of conventional neutron dark-field imaging in assessing complex heterogeneous anisotropic microstructures.
SCIENTIFIC REPORTS
(2023)
Article
Materials Science, Multidisciplinary
E. Ricardo Carreon Ruiz, Jongmin Lee, J. Ignacio Marquez Damian, Markus Strobl, Genoveva Burca, Robin Woracek, Marc-Olivier Ebert, Eric Winter, Magali Cochet, Laura Holschi, Peter M. Kadletz, Mateusz Zlobinski, Anton S. Tremsin, Lorenz Gubler, Pierre Boillat
Summary: This study presents a new method for analyzing battery electrolytes, called spectroscopic neutron imaging (SNI), which serves as a bridge between imaging and scattering techniques. By utilizing time-of-flight neutron imaging, which exploits the wavelength-dependent properties of hydrogen atoms, the scattering information of CHn-based organic solvents and electrolytes was mapped in a two-dimensional space. The results reveal the partial solidification and concentration change of electrolyte with temperature. This investigation demonstrates a novel approach to track real-time physical and chemical changes in H-containing compounds, allowing evaluation of limitations of new electrolyte mixtures and additives. The sensitivity of SNI to hydrogen in CHn functional groups extends the use of spectral methods to inspect electrolytes in Li-ion batteries and organic solvents for relevant applications beyond electrochemical systems.
MATERIALS TODAY ADVANCES
(2023)
Article
Instruments & Instrumentation
Jinlu Ruan, Liang Chen, Pengxiao Xu, Yapeng Zhang, Xue Du, Hongqiao Yin, Shiyi He, Fangbao Wang, Xun Zhang, Xiaoping Ouyang
Summary: A new SiC detector with a faster time response was developed to improve the temporal response of SiC-HPMTs. The improved SiC-HPMT showed significantly enhanced temporal response compared to the previous SiC-HPMT, and it can accurately measure the time information of fast pulsed radiation fields.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
Kevin Nash
Summary: This article discusses the need for extensive upgrades of the LHC detectors, particularly the Outer Tracker, due to the demanding conditions and radiation of the High Luminosity LHC scenario. The design choices, technological approaches, and R&D activities for the Outer Tracker Phase-2 upgrade are highlighted.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
S. A. Wotton
Summary: The hadron particle identification provided by LHCb's RICH system is crucial for the success of the experiment, and it will continue to play a significant role in Upgrade II. To maintain the current excellent particle identification performance, substantial improvements in the precision of measuring the space and time coordinates of detected photons in the RICH and in the resolution of the reconstructed Cherenkov angle are required.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
R. Cardarelli, A. Rocchi, G. Aielli, P. Camarri, A. Di Ciaccio, L. Di Stante, B. Liberti, E. Pastori, L. Pizzimento, G. Proto
Summary: The Resistive Cylindrical Chamber (RCC) is a new generation of gaseous particle detectors that overcome the limitations of Resistive Plate Chambers (RPC) and expand their application range. By transitioning from planar to cylindrical geometry, while maintaining an almost planar electric field, the RCC achieves improved detection efficiency, increased gas pressure, and the possibility of using eco-friendly gases.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
Giacomo Volpe
Summary: The ALICE collaboration is proposing a new apparatus, ALICE 3, to investigate the Quark Gluon Plasma (QGP) properties. In this context, conceptual studies for the development of a RICH detector for ALICE 3 are ongoing. The proposed baseline layout is a proximity-focusing RICH, using aerogel as Cherenkov radiator and Silicon Photomultipliers for photon detection. The detector specifications and performance obtained by Monte Carlo simulation are presented, along with the R&D challenges related to the design.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
M. G. Mazarakis, E. Jongewaard, J. Ellsworth
Summary: This report presents experimental data and a step-by-step technique for evaluating the work functions of thermionic cathodes. The experiments were conducted using small-sized thermionic cathodes provided by Spectra-Mat corporation. The cathode electron current emission work function is emphasized as a crucial parameter for selecting cathodes in various applications.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
M. Loyd, A. Khaplanov, V. Sedov, J. Beal, T. Visscher, C. Donahue, C. Montcalm, G. Warren, R. Butz, C. Boone, C. Hart, R. Riedel, Y. Diawara
Summary: Thermal and cold neutron beamlines require detector systems with high efficiency, large active area, and good spatial resolution. This study presents a new design of Anger camera using silicon photomultipliers (SiPMs) instead of photomultiplier tubes (PMTs), offering better resolution, less distortion, and more compactness. The use of SiPMs also enables the camera to be used in strong magnetic fields, providing additional experimental capabilities.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
Thomas Neulinger, Hanno Filter, Oliver Zimmer
Summary: This paper describes the mathematical foundation for analyzing vertical time-of-flight (TOF) measurements using ultracold neutrons (UCN). It enables the spectroscopy of UCN with kinetic energies below the neutron optical potential of the detector entrance window. The paper provides general treatment methods and transformation rules for converting vertical TOF spectra into other spectra of interest.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
Huynh Dinh Chuong, Nguyen Huynh Duy Khang, Le Thi Ngoc Trang, Nguyen Thi Truc Linh, Truong Thanh Sang, Nguyen Thanh Dat, Hoang Duc Tam
Summary: This paper presents a comparative study of three models, including virtual point detector (VPD), curve fitting (CF), and machine learning (ML), in determining the full-energy peak efficiency (FEPE) of HPGe detector. The study found that the ML model outperforms VPD and CF models in terms of accuracy.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
M. H. Kushoro, M. Angelone, D. Bozzi, G. Gorini, F. La Via, E. Perelli Cippo, M. Pillon, M. Tardocchi, M. Rebai
Summary: This paper presents the characterization of a series of SiC detectors operated with partial polarization, achieving excellent energy resolution and detection characteristics for both alpha particles and neutrons. The results demonstrate the potential of SiC detectors for fast neutron detection in fusion experiments. The limitations and challenges for manufacturing thick SiCs in the future are also discussed.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
Deb Sankar Bhattacharya, Andrea Bressan, Chandradoy Chatterjee, Silvia Dalla Torre, Mauro Gregori, Alexander Kiselev, Stefano Levorato, Anna Martin, Saverio Minutoli, Mikhail Osipenko, Richa Rai, Marco Ripani, Fulvio Tessarotto, Triloki Triloki
Summary: In this article, we report on the measurement of the time resolution of an LAPPD prototype using Cherenkov radiation emitted by high energy hadrons. Our approach has demonstrated the capability of measuring time resolutions as fine as 25-30 ps. The measured time resolution for single photoelectrons is about 80 ps r.m.s.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
Bharti Rohila, S. R. Abhilash, Diwanshu, Chetan Sharma, Devinder Mehta, Ashok Kumar
Summary: Self-supporting and Au backed Ag-107 targets have been fabricated using a combination of cold rolling and e-beam melting technique. The method is efficient, resulting in targets without significant material loss or major contamination. Various techniques have been used for thickness measurements and characterizations, and one of the fabricated targets has been successfully used in a nuclear physics experiment.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
B. Kronheim, A. Belloni, T. K. Edberg, S. C. Eno, C. Howe, C. Palmer, C. Papageorgakis, M. Paranjpe, S. Sriram
Summary: This paper presents measurements of the relative decrease of light output during irradiation of small plastic scintillator tiles read out by silicon photomultipliers. The study found substantial temporary damage during low-temperature irradiation, regardless of oxygen concentration and wrapping material. The wrapping material had an impact on the relative light loss, with the 3M(TM) Enhanced Specular Reflector Film showing the largest loss. The light loss was less at warmer temperatures and similar to that in standard atmosphere with 3% oxygen concentration. Evidence of a plateau in the radical density was seen for the data at 0 degrees C.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
V. V. Haurylavets, V. K. Ivanov, A. V. Korol, A. V. Solov'yov
Summary: Computational modeling of high-energy electron passage through crystalline media is conducted using relativistic molecular dynamics. The results show good agreement with experimental data, demonstrating the accuracy of the simulations. Minor discrepancies between theory and experiment are discussed.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
Luca Quaglia, R. Cardarelli, B. Liberti, E. Pastori, G. Proto, L. Pizzimento, A. Rocchi, G. Aielli, P. Camarri, A. Di Ciacco, L. Di Stante, R. Santonico, D. Boscherini, A. Bruni, L. Massa, A. Polini, M. Romano, L. Benussi, S. Bianco, D. Piccolo, G. Saviano, M. Abbrescia, L. Congedo, M. De Serio, G. Galati, G. Pugliese, S. Simone, D. Ramos, P. Salvini, A. Samalan, M. Tytgat, N. Zaganidis, J. Eysermans, A. Ferretti, M. Gagliardi, L. Terlizzi, E. Vercellin, P. Dupieux, B. Joly, S. P. Manen, R. Guida, B. Mandelli, G. Rigoletti, M. Barroso, M. C. Arena, A. Pastore, R. Aly, M. Verzeroli, S. Buontempo
Summary: Resistive Plate Chamber detectors are widely used in current High Energy Physics experiments. However, efforts are being made to find eco-friendly gas alternatives to Tetrafluoroethane. The RPC EcoGas@GIF++ collaboration aims to improve RPC technology, evaluate the performance of RPCs with eco-friendly gas mixtures, and conduct aging tests.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)