Review
Chemistry, Multidisciplinary
Yulun Wu, Huangxu Li, Tiancheng Liu, Ming Xu
Summary: This review comprehensively examines the use of proteins and their subunits in addressing engineering issues in various rechargeable batteries. The latest advances in electrode, electrolyte, separator, and other components are discussed, with a particular emphasis on the impact of biomolecules on electrochemical properties.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Ying Zhao, Fei Li, Fenfen Ma, Junge Zhi, Guanglu Wu, Xiaoyan Zheng
Summary: The molecular recognition of synthetic cucurbit[7]uril (CB[7]) to N-terminal Leu-containing tripeptides was investigated using molecular dynamics (MD) simulation, and tripeptides with high binding affinity were identified. The study found that CB[7] had a nanomolar level binding affinity to LGR, but changing the sequence order or increasing the sequence length significantly decreased the binding affinity. Substituting N-terminal Leu for Ile weakened the binding of CB[7] to tripeptides. Furthermore, it was predicted that placing R at the C-terminus resulted in a consistently high binding strength. This research provides insights for the rational design of peptides with high affinity to CB[7] in practical applications.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Zhongbao Han, Nozomu Omata, Takeshi Matsuda, Shoki Hishida, Shuuhei Takiguchi, Ryoki Komori, Riku Suzuki, Lee Chuin Chen
Summary: We report a highly tunable oxidation method that can be performed in line with nanoESI-MS analysis without using oxidative reagents and UV activation. The method is based on high-pressure nanoESI and allows for on-demand oxidation of analytes at low flow rates. The oxidation degree can be finely tuned by voltage modulation using spray current as the feedback signal.
Article
Spectroscopy
H. J. Ojeda-Galvan, A. C. Hernandez-Arteaga, M. C. Rodriguez-Aranda, J. F. Toro-Vazquez, N. Cruz-Gonzalez, S. Ortiz-Chavez, M. Comas-Garcia, A. G. Rodriguez, H. R. Navarro-Contreras
Summary: Raman spectroscopy was used to study the thermal denaturation of three different proteins and the decomposition temperature of three amino acids. The results obtained were compared with those measured by DSC and TGA, showing the applicability of Raman spectroscopy in studying the denaturation and decomposition temperatures of proteins and amino acids.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Review
Food Science & Technology
Erwin G. Torres Sanchez, Blanca Hernandez-Ledesma, Luis-Felipe Gutierrez
Summary: Sacha Inchi is a superfood with high nutritional value, containing abundant polyunsaturated oil, protein, fiber, minerals, and other beneficial compounds. This review summarizes the characteristics, applications, and activity of Sacha Inchi oil press-cake, as well as explores its potential value in agro-industry and the significance of alternative plant-based protein.
FOOD REVIEWS INTERNATIONAL
(2023)
Review
Chemistry, Multidisciplinary
Simge Er, Ushna Laraib, Rabia Arshad, Saman Sargazi, Abbas Rahdar, Sadanand Pandey, Vijay Kumar Thakur, Ana M. Diez-Pascual
Summary: Amino acids play a crucial role in biochemical research, transforming nanotechnology through protein, peptide, and amino acid-based drug delivery systems. Novel nanostructures like carbon nanotubes and metal-based nanoparticles are utilized as nanosensors for accurate detection of organic compounds. Protein-based nanocarriers are emerging as effective drug and gene delivery platforms, addressing biological barriers and enhancing delivery efficacy.
Article
Chemistry, Physical
Alexander A. Malar, Laura A. Volker, Riccardo Cadalbert, Lauriane Lecoq, Matthias Ernst, Anja Bockmann, Beat H. Meier, Thomas Wiegand
Summary: This study demonstrates that fast temporal stabilization of a magnetic field is achievable by actively stabilizing the temperature of the magnet bore. It allows quantification of the weak temperature dependence of proton chemical shift, which is diagnostic for hydrogen bond presence. Hydrogen bonding plays a crucial role in molecular recognition events, however, direct detection remains challenging due to resolution limitations.
JOURNAL OF PHYSICAL CHEMISTRY B
(2021)
Article
Chemistry, Analytical
Qingfang Niu, Pengyue Jin, Yu Huang, Lifang Fan, Caihong Zhang, Cheng Yang, Chuan Dong, Wenting Liang, Shaomin Shuang
Summary: In this study, a novel nanocomposite 3D-rGO/Pd@Au/CM-beta-CD was developed for the electrochemical enantiorecognition of tyrosine. Under the optimized determining conditions, this approach accurately determines the relative content of l- or d-Tyr enantiomers in a racemic solution.
Article
Chemistry, Organic
Kiran Bajaj, Karishma Pidiyara, Shahid Khan, Prabhat N. Jha, Rajeev Sakhuja, Dalip Kumar
Summary: This study focused on the synthesis and characterization of fluorescent labeled glutamine and asparagine derivatives with high fluorescence quantum yields and excellent photostabilities using traceless Staudinger ligation. The successful permeation of these fluorescent amino acids into cellular components demonstrated their potential as fluorescent probes for chemical biology.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2021)
Review
Chemistry, Analytical
Marine Morvan, Ivan Miksik
Summary: Determining the presence and position of D-amino acids in proteins is a complex challenge, requiring two strategies for detection. Enzymatic digestion and acid hydrolysis are the main methods for detecting D-amino acids. In order to improve the resolution of chiral separations, future work may focus on the discovery and development of new chiral stationary phases and derivatization reagents.
Article
Chemistry, Multidisciplinary
Joongoo Lee, Kevin J. Schwarz, Hao Yu, Antje Kruger, Eric Anslyn, Andrew D. Ellington, Jeffrey S. Moore, Michael C. Jewett
Summary: This study reports a method for fluorescent labeling of amino acids catalyzed by flexizyme, and demonstrates the site-specific incorporation of these fluorescent amino acids into peptides by the ribosome in vitro through genetic code reprogramming.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Jessica Spackova, Ieva Goldberga, Rishit Yadav, Guillaume Cazals, Aurelien Lebrun, Pascal Verdie, Thomas-Xavier Metro, Danielle Laurencin
Summary: O-17 NMR spectroscopy is a powerful technique for studying biomolecules. This study presents cost-effective strategies for enriching amino acids and peptides with O-17 using mechanochemistry. The enriched samples showed high levels of enrichment with no loss of purity, making them suitable for future NMR studies.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Biochemistry & Molecular Biology
Yaxian Lin, Yangyang Jiang, Ziwei Zhao, Yueyang Lu, Xinping Xi, Chengbang Ma, Xiaoling Chen, Mei Zhou, Tianbao Chen, Chris Shaw, Lei Wang
Summary: Temporin-PKE is a novel peptide extracted from the skin secretion of Pelophylax kl. esculentus, which displays strong antimicrobial activity and cytotoxicity. Strategies for modifications include incorporating positively charged residues, D-amino acids, and altering the side chain amino acids. The optimal analogue, Temporin-PKE-3K, exhibits dual efficient functions, strong antimicrobial and anticancer activity.
Article
Multidisciplinary Sciences
Santosh K. Singh, Cheng Zhu, Jesse La Jeunesse, Ryan C. Fortenberry, Ralf Kaiser
Summary: The Strecker synthesis is a viable route to amino acids formation on the primordial Earth. The authors successfully observed the elusive intermediate aminomethanol in the reaction and discovered its unexpected kinetic stability in extreme environments. This finding changes our understanding of the synthetic pathways to amino acids.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Sahabaj Mondal, Surajit Singh, Ananda Shit, Santosh Kumar, Debasish Haldar
Summary: The tryptophan-mediated photo cleavage of disulfide bonds and resulting defibrillation process has been demonstrated. A supramolecular fiber-like network structure is formed through the self-assembly of dibenzyloxycarbonyl-L-cystine by non-covalent interactions, resulting in a hydrogel. The hydrogel shows thixotropic properties and is responsive to heat and pH. However, UV irradiation leads to disulfide bond cleavage, causing defibrillation and a gel-to-sol transition. The fiber exhibits amyloid-like structure and positive results in the Congo red assay.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Physical
A. V. Bukhtiyarov, M. A. Panafidin, I. P. Prosvirin, N. S. Smirnova, P. V. Markov, G. N. Baeva, I. S. Mashkovsky, G. O. Bragina, C. Rameshan, E. Yu. Gerasimov, Y. V. Zubavichus, V. I. Bukhtiyarov, A. Yu. Stakheev
Summary: A bimetallic PdIn/Al2O3 catalyst was prepared and characterized, and its activity and selectivity changes in the diphenylacetylene hydrogenation were investigated. It was found that oxidative treatment modified the catalyst active sites structure, leading to a decrease in selectivity, but this effect was reversible and reproducible. This catalyst is of great significance for balancing activity and selectivity.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Inorganic & Nuclear
Alexander S. Belov, Valentin V. Novikov, Anna V. Vologzhanina, Alexander A. Pavlov, Artem S. Bogomyakov, Yan V. Zubavichus, Roman D. Svetogorov, Genrikh E. Zelinskii, Yan Z. Voloshin
Summary: This study investigates the fast crystallization and structural transformation of a cobalt (II) complex. The complex undergoes a temperature-induced spin crossover and its behavior is influenced by solvent and crystal polymorphism. The findings provide insights into the synthesis and properties of cobalt complexes.
DALTON TRANSACTIONS
(2023)
Article
Materials Science, Multidisciplinary
V. V. Popov, A. P. Menushenkov, Y. V. Zubavichus, F. E. Dubyago, A. A. Yastrebtsev, A. A. Ivanov, S. G. Rudakov, R. D. Svetogorov, E. V. Khramov, N. A. Kolyshkin, N. A. Tsarenko, I. V. Shchetinin, I. G. Bordyuzhin
Summary: The study investigates the influence of specific synthesis conditions on the crystal, atomic, and electronic structures of Ce chromates/chromites prepared using coprecipitation. Various analytical techniques, including synchrotron X-ray diffraction, X-ray absorption fine structure (XAFS), Raman spectroscopy, Fourier transform infrared (FT-IR) spectroscopy, and simultaneous thermal analysis, were used. It was found that different synthesis conditions resulted in the formation of different phases, such as CeO2, Cr2O3, and CeCrO3, and accompanied redox transformations of Cr6+ -> Cr3+ and Ce3+ <-> Ce4+.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Inorganic & Nuclear
Alexey N. Bilyachenko, Victor N. Khrustalev, Grigorii S. Astakhov, Anna Y. Zueva, Ivan S. Arteev, Yan Zubavichus, Alexander A. Korlyukov, Pavel Dorovatovskii, Lidia S. Shul'pina, Nikolay S. Ikonnikov, Marina Kirillova, Elena S. Shubina, Yuriy N. Kozlov, Alexander M. Kirillov, Georgiy B. Shul'pin
Summary: Ten copper-based cage silsesquioxanes with similar Cu4M2 nuclearity were synthesized using different quaternary ammonium cations. Single-crystal X-ray diffraction studies confirmed the sandwich-like structures of all compounds. These complexes exhibited promising catalytic properties in various model reactions.
Article
Chemistry, Physical
Alexander Yu. Mitrofanov, Arina Murashkina, Anna I. Barabanova, Alesya V. Vorozheykina, Yan Zubavichus, Alexey R. Khokhlov, Irina P. Beletskaya
Summary: A new catalytic system based on copper supported on poly(N-vinylimidazole-co-N-vinylcaprolactam) was studied. The influence of different compositions of copolymers on the catalytic activity was compared. The copolymer with 25 mol% of N-vinylimidazole and 75 mol% of N-vinylcaprolactam exhibited the best catalytic efficiency and recycling ability in the click reaction and Chan-Lam coupling.
MOLECULAR CATALYSIS
(2023)
Article
Chemistry, Multidisciplinary
Olga V. V. Rudnitskaya, Tatiana A. A. Tereshina, Ekaterina V. V. Dobrokhotova, Ekaterina K. K. Kultyshkina, Natalia A. A. Chumakova, Alexander I. I. Kokorin, Yan V. V. Zubavichus, Victor N. N. Khrustalev
Summary: As evidenced by spectroscopic techniques, the reaction of H2IrCl6·6H2O or Na2[IrCl6]·nH2O with DMSO results in the reduction of Ir(IV) and the formation of sodium hexachloridoiridate-(III) as a product. In addition, the formation of [IrCl5(Me2CO)](-) species is observed upon storage of H2IrCl6·6H2O in acetone solution. Further reaction of DMSO with H2IrCl6·6H2O in acetone solution results in the formation of a novel iridium-(IV) chloride-dimethylsulfoxide salt. Byproducts of this reaction include new polymorph modifications of known iridium(III) complexes.
Article
Chemistry, Inorganic & Nuclear
Pavel V. Markov, Galina O. Bragina, Nadezhda S. Smirnova, Galina N. Baeva, Igor S. Mashkovsky, Evgeny Y. Gerasimov, Andrey V. Bukhtiyarov, Yan. V. Zubavichus, Alexander Y. Stakheev
Summary: The effect of support on the performance of Pd1Ag10/Al2O3 and Pd1Ag10/CeO2-ZrO2 catalysts in the selective hydrogenation of diphenylacetylene (DPA) was investigated. The use of CeO2-ZrO2 as a carrier increased the activity of the Pd1Ag10 catalyst by three times without sacrificing selectivity compared to Pd1Ag10/Al2O3. The high selectivity of Pd1Ag10/CeO2-ZrO2 can be attributed to the stability of the structure of isolated Pd-1 sites on the surface of SAA Pd1Ag10/CeO2-ZrO2.
Article
Chemistry, Physical
A. Yu. Fedorov, A. V. Bukhtiyarov, M. A. Panafidin, I. P. Prosvirin, Y. V. Zubavichus, V. I. Bukhtiyarov
Summary: The intentional tailoring of surface structure in bimetallic nanoparticles, especially those containing bulk-immiscible metals like Pt and Ag, has attracted great interest in academic research and industry. However, our investigation on the Ag-Pt/HOPG bimetallic system reveals that while partial alloying of Ag and Pt occurs at the preparation stage, thermal annealing does not further enhance the alloying degree due to surface segregation of silver. Increasing the annealing temperatures leads to structure ruins and even partial phase separation. These findings highlight the limited alloying capability of Pt and Ag at the nanoscale, which should be considered for the design and functioning of bimetallic catalysts.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Inorganic & Nuclear
O. A. Bulavchenko, Z. S. Vinokurov, A. G. Selyutin, D. D. Mishchenko, A. A. Saraev, B. G. Goldenberg, S. V. Tsybulya, Ya. V. Zubavichus
Summary: We propose a concept design of the CCU SKIF-NSU Experimental Station 1-7, which aims to improve the efficiency of the educational process and help NSU students solve research problems using modern synchrotron radiation source. The Experimental Station 1-7 will implement various research methods including powder and single-crystal X-ray diffraction, X-ray absorption spectroscopy, and X-ray fluorescence analysis. This research complex will not only solve scientific problems in fields such as physics, biology, chemistry, geology, archeology, and medicine, but also provide practical education for synchrotron research.
JOURNAL OF STRUCTURAL CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
A. Yu. Vasil'kov, A. A. Voronova, A. V. Naumkin, I. E. Butenko, Ya. V. Zubavichus
Summary: In this study, Au, Fe, and AuFe nanoparticles were successfully synthesized using metal vapor synthesis with acetone as the dispersion medium. The composition and electronic structure of the particles were investigated, revealing that Au particles mainly existed in the Au-0 state, while Fe existed as non-stoichiometric oxides with states close to Fe2+ and Fe3+. The obtained materials show potential for the development of improved antimicrobial agents and new methods for treating cancer.
RUSSIAN JOURNAL OF INORGANIC CHEMISTRY
(2023)
Article
Crystallography
Victor V. Popov, Ekaterina B. Markova, Yan V. Zubavichus, Alexey P. Menushenkov, Alexey A. Yastrebtsev, Bulat R. Gaynanov, Olga V. Chernysheva, Andrei A. Ivanov, Sergey G. Rudakov, Maria M. Berdnikova, Alexander A. Pisarev, Elizaveta S. Kulikova, Nickolay A. Kolyshkin, Evgeny V. Khramov, Victor N. Khrustalev, Igor V. Shchetinin, Nadezhda A. Tsarenko, Natalia V. Ognevskaya, Olga N. Seregina
Summary: This study investigates the influence of Yb3+ cations substitution for Pr3+ on the structure and catalytic activity of (Pr1-xYbx)(2)Zr2O7 powders. The results show that the chemical composition and calcination temperature play important roles in determining the phase composition, crystallographic, and local-structure parameters of these materials. The progressive replacement of Pr3+ with Yb3+ cations leads to an increase in catalytic activity.
Article
Crystallography
Andrey V. Bukhtiyarov, Maxim A. Panafidin, Igor P. Prosvirin, Nadezhda S. Smirnova, Pavel V. Markov, Galina N. Baeva, Igor S. Mashkovsky, Galina O. Bragina, Zakhar S. Vinokurov, Yan V. Zubavichus, Valerii I. Bukhtiyarov, Alexander Yu. Stakheev
Summary: This study investigates the transformations of chemical states and structures in the PdIn/Al2O3 catalyst during redox treatments at different temperatures and in different gaseous atmospheres using various in situ techniques. The results show that it is possible to control and reverse the state of the catalyst between highly dispersed oxide species and regularly ordered PdIn intermetallic compound by selecting appropriate conditions for the reductive treatment. This transformation involves the conversion of multi-atomic Pdn centers into single-site Pd-1 centers and could be used to optimize the activity and selectivity of the catalytic system.
Article
Chemistry, Physical
M. A. Panafidin, A. V. Bukhtiyarov, I. P. Prosvirin, Y. V. Zubavichus, V. I. Bukhtiyarov
Summary: The correlation between the catalytic properties of bimetallic Pd-Ag nanoparticles and the surface composition evolution was studied in the stoichiometric reaction mixture of CO oxidation. It was found that Pd segregation occurred on the surface at room temperature and became more apparent at 150 degrees C. The Pd-CO adsorption state gradually decreased with increasing temperature, leading to a decrease in the Pd/Ag atomic ratio on the surface.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Inorganic & Nuclear
Alexander S. S. Belov, Svetlana A. A. Belova, Nikolay N. N. Efimov, Veronika V. V. Zlobina, Valentin V. V. Novikov, Yulya V. V. Nelyubina, Yan V. V. Zubavichus, Yan Z. Z. Voloshin, Alexander A. A. Pavlov
Summary: Title: Cobalt(II) pseudoclathrochelate complexes exhibit an intermediate trigonal prismatic-trigonal antiprismatic geometry. According to PPMS data, they show SMM behavior with Orbach relaxation barriers of approximately 90 K. Paramagnetic NMR experiments confirm the persistence of these magnetic characteristics in solution. Therefore, targeted delivery of this 3D molecular platform to a specific biosystem can be accomplished through straightforward apical functionalization without significant changes.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Anatolii S. Burlov, Valery G. Vlasenko, Leonid D. Popov, Yurii Koshchienko, Dmitrii A. Garnovskii, Alexandra A. Kolodina, Evgeniya Korshunova, Yan Zubavichus, Vladimir A. Lazarenko
Summary: Two Zn(II) and Ni(II) complexes derived from the N-[2-(2-diethylphosphonylethyliminomethyl)phenyl]-4methylbenzenesulfonamide ligand (HL) have been synthesized and characterized. The Zn(II) complex exhibits photoluminescence in the blue-violet spectral range in DMSO and toluene solutions.
INORGANICA CHIMICA ACTA
(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)
