Article
Chemistry, Multidisciplinary
Makoto Teshigawara, Yujiro Ikeda, Mingfei Yan, Kazuo Muramatsu, Koichi Sutani, Masafumi Fukuzumi, Yohei Noda, Satoshi Koizumi, Koichi Saruta, Yoshie Otake
Summary: Experimental results show that nanosized graphene aggregation can enhance coherent neutron scattering and increase neutron intensity, similar to nanodiamonds, under particle size conditions.
Article
Instruments & Instrumentation
A. Hollering, N. Rebrova, C. Klauser, Th Lauer, B. Maerkisch, U. Schmidt
Summary: In this paper, a novel type of neutron guides based on copper and titanium is presented. These guides preserve the polarization of neutron beams and exhibit excellent reflectivity and stability even under high temperatures.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2022)
Article
Nuclear Science & Technology
L. Zanini, E. Dian, D. D. DiJulio, B. Folsom, E. B. Klinkby, Z. Kokai, J. I. Marquez Damian, B. Rataj, N. Rizzi, V Santoro, M. Strothmann, A. Takibayev, R. Wagner, O. Zimmer
Summary: The Workshop on Very Cold and Ultra Cold Neutron Sources for ESS aimed to discuss scientific cases, ideas, and possibilities for implementing sources of Very Cold and Ultra Cold neutrons at the European Spallation Source. The workshop highlighted the potential for in-pile UCN or VCN sources at the ESS facility and the flexibility of neutron beam extraction through the grid of beamports. The discussions focused on the NNBAR experiment and the use of superfluid helium or solid deuterium as neutron converter materials for UCN sources, as well as novel materials and advanced reflectors for VCN production.
JOURNAL OF NEUTRON RESEARCH
(2022)
Review
Oncology
Timothy D. Malouff, Danushka S. Seneviratne, Daniel K. Ebner, William C. Stross, Mark R. Waddle, Daniel M. Trifiletti, Sunil Krishnan
Summary: Boron neutron capture therapy (BNCT) is an emerging treatment modality that utilizes boron-10 to target tumors and has shown promising results in various cancer types in clinical studies.
FRONTIERS IN ONCOLOGY
(2021)
Article
Polymer Science
Kun Yu, Zhongya Zhang, Yang Zou, Jinlong Jiang, Xingqi Zeng, Liang Tang
Summary: This paper experimentally studied the direct shear performance of ultra-high-performance concrete (UHPC) adhesive joints and discussed the failure modes and load-slip curves of different interfaces under different constraint states. The results showed that passive confinement can enhance the strength and ductility of the interface. The findings can provide reference for the design and application of UHPC adhesive joints.
Article
Instruments & Instrumentation
M. Passeri, F. Pompili, B. Esposito, M. Pillon, M. Angelone, D. Marocco, G. Pagano, S. Podda, M. Riva
Summary: This study experimentally investigates the hardness of single crystal diamond neutron detectors for the ITER Radial Neutron Camera, and finds that the degradation of charge collection efficiency is lower with decreasing thickness. Strong polarization effects are observed in thinner detectors due to charge carriers being trapped in defects produced by neutron irradiation, but a software correction is proposed to extend the range of operation.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2021)
Article
Physics, Multidisciplinary
Mehdi Derradji, Oussama Mehelli, Raouf Belgacemi, Slimane Abdous
Summary: A new hybrid composite was developed for the development of advanced lightweight thermal and ballistic neutrons shields. The composite, made from Kevlar fibers, epoxy, and boron carbide particles, showed high shielding efficiency, with the best performance observed at 20% B4C content.
FRONTIERS IN PHYSICS
(2022)
Article
Construction & Building Technology
Zhen Lei, Zhipeng Li, Xiang Zhang, Xianming Shi
Summary: The carbon FRP-wrapped concrete with 1.5 wt% montmorillonite nanoclay modified siloxane epoxy adhesive showed notably improved mechanical properties and transport properties compared to unmodified counterparts. Additionally, the nano-modification also increased resistance to salt scaling, attributed to improved microstructure and reduced hydrophilicity of the adhesive.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Instruments & Instrumentation
G. Song, S. Lee, J. Park, W. Kim, K. Ko, H. Kim, G. Cho
Summary: This study performed pulse shape discrimination (PSD) of neutrons and X-rays under high flux conditions using organic crystalline, liquid, and plastic scintillators. Lead shielding was utilized to reduce the X-ray-to-neutron ratio and evaluate neutron images by comparing MCNP6 simulation results and experimental results.
JOURNAL OF INSTRUMENTATION
(2022)
Article
Construction & Building Technology
Yang Liu, Zhendong Qian, Xijun Shi, Yuheng Zhang, Haisheng Ren
Summary: In this study, a cold-mixed ultra-thin anti-skid surface layer (UTASS) was developed to improve the skid resistance of epoxy asphalt-based concrete (EAC) pavement. The EAC-UTASS composite structure showed better texture depth, high-temperature rutting resistance, low-temperature cracking resistance, and interlayer bonding stability compared to other composite structures. The use of UTASS was found to be a feasible strategy for enhancing the skid resistance of EAC pavement.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Chemistry, Analytical
M. Ghosh, P. S. Remya Devi, T. P. Patel, K. K. Swain
Summary: A methodology has been developed using neutron activation for the complete compositional characterization of lithium titanate, capable of analyzing the content of Li and O and offering self-validation through different isotopes.
ANALYTICA CHIMICA ACTA
(2022)
Article
Materials Science, Multidisciplinary
Xuelian Wu, Bing Wang, Christine Rehm, Haiyan He, Muhammad Naeem, Si Lan, Zhenduo Wu, Xun-Li Wang
Summary: The phase evolution of CoCrFeNiMo0.3 high entropy alloy under different annealing temperatures was investigated using USANS, XRD, and SEM techniques. Secondary phase precipitation of nanoscale mu and sigma phases was observed with increasing annealing temperature, leading to a sharp drop in alloy hardness. The alloy maintained high hardness within a wide temperature range of 550-750 degrees C, making it a promising material for structural applications at intermediate temperatures.
Article
Chemistry, Physical
M. I. Sayyed, Malaa M. Taki, Alyaa H. Abdalsalam, M. H. A. Mhareb, Y. S. Alajerami, Erdem Sakar, Bunyamin Aygun, Kawa M. KaKy
Summary: In this study, UHMWPE reinforced with WO3 composite was synthesized and characterized using SEM, EDX, XRD, and Raman spectroscopy. The results showed homogeneous dispersion of WO3 particles in the matrix, with potential neutron and proton shielding properties, making it suitable for neutron shielding applications.
Article
Construction & Building Technology
Yi Sun, Zhi Li, Qian Yan, Shifeng Zhang, Xingbo Shi, Shuanhong Li, Shangtao Chen
Summary: By inducing electrostatic coacervation between anionic and cationic resins, a robust internal cohesive framework was constructed in the high-temperature soy meal adhesive, resulting in improved viscosity and cold-pressing shear strength.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Vitor B. Moreira, Carlos Aleman, Jeroen Rintjema, Fernando Bravo, Arjan W. Kleij, Elaine Armelin
Summary: This article reports a method for preparing epoxy-functionalized polycarbonate materials using biobased epoxy-derived raw materials and crosslinking them to obtain a solvent-borne adhesive. The adhesive has excellent film-forming, mechanical performance, and adhesion strength.
Article
Astronomy & Astrophysics
C. Abel, N. J. Ayres, G. Ban, G. Bison, K. Bodek, V Bondar, E. Chanel, P-J Chiu, C. Crawford, M. Daum, R. T. Dinani, S. Emmenegger, P. Flaux, L. Ferraris-Bouchez, W. C. Griffith, Z. D. Grujic, N. Hild, K. Kirch, H-C Koch, P. A. Koss, A. Kozela, J. Krempel, B. Lauss, T. Lefort, A. Leredde, P. Mohanmurthy, O. Naviliat-Cuncic, D. Pais, F. M. Piegsa, G. Pignol, M. Rawlik, D. Rebreyend, I Rienaecker, D. Ries, S. Roccia, D. Rozpedzik, P. Schmidt-Wellenburg, N. Severijns, J. Thorne, A. Weis, E. Wursten, J. Zejma, G. Zsigmond
Summary: Researchers proposed the existence of mirror copies of standard model particles, and experiments have provided evidence to support this hypothesis. By studying neutron to mirror-neutron oscillations, they have imposed constraints on theoretical parameters and detected anomalous signals, potentially indicating the existence of oscillations between neutrons and mirror-neutrons.
Correction
Multidisciplinary Sciences
Julian J. Krauth, Karsten Schuhmann, Marwan Abdou Ahmed, Fernando D. Amaro, Pedro Amaro, Francois Biraben, Tzu-Ling Chen, Daniel S. Covita, Andreas J. Dax, Marc Diepold, Luis M. P. Fernandes, Beatrice Franke, Sandrine Galtier, Andrea L. Gouvea, Johannes Gotzfried, Thomas Graf, Theodor W. Hansch, Jens Hartmann, Malte Hildebrandt, Paul Indelicato, Lucile Julien, Klaus Kirch, Andreas Knecht, Yi-Wei Liu, Jorge Machado, Cristina M. B. Monteiro, Francoise Mulhauser, Boris Naar, Tobias Nebel, Francois Nez, Joaquim M. F. dos Santos, Jose Paulo Santos, Csilla I. Szabo, David Taqqu, Joao F. C. A. Veloso, Jan Vogelsang, Andreas Voss, Birgit Weichelt, Randolf Pohl, Aldo Antognini, Franz Kottmann
Article
Multidisciplinary Sciences
Julian J. Krauth, Karsten Schuhmann, Marwan Abdou Ahmed, Fernando D. Amaro, Pedro Amaro, Francois Biraben, Tzu-Ling Chen, Daniel S. Covita, Andreas J. Dax, Marc Diepold, Luis M. P. Fernandes, Beatrice Franke, Sandrine Galtier, Andrea L. Gouvea, Johannes Goetzfried, Thomas Graf, Theodor W. Haensch, Jens Hartmann, Malte Hildebrandt, Paul Indelicato, Lucile Julien, Klaus Kirch, Andreas Knecht, Yi-Wei Liu, Jorge Machado, Cristina M. B. Monteiro, Francoise Mulhauser, Boris Naar, Tobias Nebel, Francois Nez, Joaquim M. F. dos Santos, Jose Paulo Santos, Csilla I. Szabo, David Taqqu, Joao F. C. A. Veloso, Jan Vogelsang, Andreas Voss, Birgit Weichelt, Randolf Pohl, Aldo Antognini, Franz Kottmann
Summary: The energy levels of hydrogen-like atomic systems can be calculated with great precision, which can be used to study nuclear structure. Through measuring the root-mean-square charge radius of the proton and comparing it with the value from electron scattering, it provides a benchmark for few-nucleon theories, lattice quantum chromodynamics, and electron scattering. The agreement also constrains several beyond-standard-model theories proposed to explain the proton-radius puzzle, establishing spectroscopy of light muonic atoms and ions as a precise tool for studies of nuclear properties.
Article
Physics, Nuclear
N. J. Ayres, G. Ban, G. Bison, K. Bodek, V. Bondar, E. Chanel, P. -J. Chiu, C. B. Crawford, M. Daum, S. Emmenegger, L. Ferraris-Bouchez, P. Flaux, Z. Grujic, P. G. Harris, N. Hild, J. Hommet, M. Kasprzak, Y. Kermaidic, K. Kirch, S. Komposch, A. Kozela, J. Krempel, B. Lauss, T. Lefort, Y. Lemiere, A. Leredde, P. Mohanmurthy, A. Mtchedlishvili, O. Naviliat-Cuncic, D. Pais, F. M. Piegsa, G. Pignol, M. Rawlik, D. Rebreyend, I. Rienacker, D. Ries, S. Roccia, D. Rozpedzik, P. Schmidt-Wellenburg, A. Schnabel, R. Virot, A. Weis, E. Wursten, J. Zejma, G. Zsigmond
Summary: Psychological bias in data analysis poses a significant threat, and data blinding is a reliable method to circumvent it. The study introduces an algorithm for modifying data without influencing experimental results, applicable to experiments like neutron electric dipole moment studies.
EUROPEAN PHYSICAL JOURNAL A
(2021)
Correction
Physics, Nuclear
N. J. Ayres, G. Ban, G. Bison, K. Bodek, V. Bondar, E. Chanel, P. -J. Chiu, C. B. Crawford, M. Daum, S. Emmenegger, L. Ferraris-Bouchez, P. Flaux, Z. Grujic, P. G. Harris, N. Hild, J. Hommet, M. Kasprzak, Y. Kermaidic, K. Kirch, S. Komposch, A. Kozela, J. Krempel, B. Lauss, T. Lefort, Y. Lemiere, A. Leredde, P. Mohanmurthy, A. Mtchedlishvili, O. Naviliat-Cuncic, D. Pais, F. M. Piegsa, G. Pignol, M. Rawlik, D. Rebreyend, I. Rienacker, D. Ries, S. Roccia, D. Rozpedzik, P. Schmidt-Wellenburg, A. Schnabel, R. Virot, A. Weis, E. Wursten, J. Zejma, G. Zsigmond
EUROPEAN PHYSICAL JOURNAL A
(2021)
Article
Physics, Particles & Fields
N. J. Ayres, G. Ban, L. Bienstman, G. Bison, K. Bodek, V. Bondar, T. Bouillaud, E. Chanel, J. Chen, P. -J. Chiu, B. Clement, C. B. Crawford, M. Daum, B. Dechenaux, C. B. Doorenbos, S. Emmenegger, L. Ferraris-Bouchez, M. Fertl, A. Fratangelo, P. Flaux, D. Goupilliere, W. C. Griffith, Z. D. Grujic, P. G. Harris, K. Kirch, P. A. Koss, J. Krempel, B. Lauss, T. Lefort, Y. Lemiere, A. Leredde, M. Meier, J. Menu, D. A. Mullins, O. Naviliat-Cuncic, D. Pais, F. M. Piegsa, G. Pignol, G. Quemener, M. Rawlik, D. Rebreyend, I. Rienaecker, D. Ries, S. Roccia, K. U. Ross, D. Rozpedzik, W. Saenz, P. Schmidt-Wellenburg, A. Schnabel, N. Severijns, B. Shen, T. Stapf, K. Svirina, R. Tavakoli Dinani, S. Touati, J. Thorne, R. Virot, J. Voigt, E. Wursten, N. Yazdandoost, J. Zejma, G. Zsigmond
Summary: The n2EDM experiment, currently under construction at PSI, aims to search for an electric dipole moment of the neutron with high precision. Building on previous experience, the project is expected to deliver significantly improved sensitivity and allow for further substantial improvements in the future.
EUROPEAN PHYSICAL JOURNAL C
(2021)
Article
Multidisciplinary Sciences
Nicholas J. Ayres, Zurab Berezhiani, Riccardo Biondi, Georg Bison, Kazimierz Bodek, Vira Bondar, Pin-Jung Chiu, Manfred Daum, Reza Tavakoli Dinani, Cornelis B. Doorenbos, Solange Emmenegger, Klaus Kirch, Victoria Kletzl, Jochen Krempel, Bernhard Lauss, Duarte Pais, Ingo Rienaecker, Dieter Ries, Nicola Rossi, Dagmara Rozpedzik, Philipp Schmidt-Wellenburg, Kazuo S. Tanaka, Jacek Zejma, Nathalie Ziehl, Geza Zsigmond
Summary: The Paul Scherrer Institut (PSI) is conducting a new study on neutron to mirror-neutron oscillations using stored ultracold neutrons. The experiment features a large storage vessel to enhance statistical sensitivity. With the demonstrated performance, the study aims to detect or exclude potential signals consistent with neutron to mirror-neutron oscillations.
Article
Chemistry, Multidisciplinary
Sayani Biswas, Lars Gerchow, Hubertus Luetkens, Thomas Prokscha, Aldo Antognini, Niklaus Berger, Thomas Elias Cocolios, Rugard Dressler, Paul Indelicato, Klaus Jungmann, Klaus Kirch, Andreas Knecht, Angela Papa, Randolf Pohl, Maxim Pospelov, Elisa Rapisarda, Peter Reiter, Narongrit Ritjoho, Stephanie Roccia, Nathal Severijns, Alexander Skawran, Stergiani Marina Vogiatzi, Frederik Wauters, Lorenz Willmann, Alex Amato
Summary: The toolbox for material characterization has expanded greatly, allowing for new possibilities such as 3D-tomography and chemical analysis with the development of Muon Induced X-ray Emission (MIXE) technique.
APPLIED SCIENCES-BASEL
(2022)
Article
Physics, Multidisciplinary
Pedro Amaro, A. Adamczak, M. Abdou Ahmed, L. Affolter, F. D. Amaro, Patricia Carvalho, T-L Chen, L. M. P. Fernandes, M. Ferro, D. Goeldi, T. Graf, M. Guerra, T. W. Haensch, C. A. O. Henriques, Y-C Huang, P. Indelicato, O. Kara, Klaus Kirch, Andreas Knecht, Franz Kottmann, Y-W Liu, Jorge Machado, M. Marszalek, R. D. P. Mano, C. M. B. Monteiro, F. Nez, J. Nuber, A. Ouf, N. Paul, Randolf Pohl, E. Rapisarda, J. M. F. dos Santos, J. P. Santos, P. A. O. C. Silva, L. Sinkunaite, J-T Shy, K. Schuhmann, S. Rajamohanan, Anna Soter, L. Sustelo, David Taqqu, L-B Wang, Frederik Wauters, P. Yzombard, M. Zeyen, Aldo Antognini
Summary: The CREMA collaboration aims to measure the ground-state hyperfine splitting in muonic hydrogen with high accuracy using pulsed laser spectroscopy. They calculate the combined probability of laser excitation to the triplet state followed by collisional-induced deexcitation back to the singlet state, taking into account decoherence effects and Doppler effects. These calculations help optimize the experimental conditions and define the requirements for the laser system.
Article
Instruments & Instrumentation
N. J. Ayres, G. Ban, G. Bison, K. Bodek, V. Bondar, T. Bouillaud, B. Clement, E. Chanel, P. -j. Chiu, C. B. Crawford, M. Daum, C. B. Doorenbos, S. Emmenegger, A. Fratangelo, M. Fertl, W. C. Griffith, Z. D. Grujic, P. G. Harris, K. Kirch, J. Krempel, B. Lauss, T. Lefort, O. Naviliat-Cuncic, D. Pais, F. M. Piegsa, G. Pignol, G. Rauscher, D. Rebreyend, I. Rienaecker, D. Ries, S. Roccia, D. Rozpedzik, W. Saenz-Arevalo, P. Schmidt-Wellenburg, A. Schnabel, N. Severijns, B. Shen, M. Staab, K. Svirina, R. Tavakoli Dinani, J. Thorne, N. Yazdandoost, J. Zejma, G. Zsigmond
Summary: This article presents the magnetically shielded room (MSR) used in the n2EDM experiment at the Paul Scherrer Institute. The MSR has a cubic volume with dimensions of 2.92 meters on each side, providing 25 cubic meters of accessible space. It features 87 openings with a maximum diameter of 220 mm for operating the experimental apparatus, as well as an intermediate space for housing sensitive signal processing electronics. Characterization measurements show that the remanent magnetic field in the central 1 cubic meter is below 100 pT, and the field is below 600 pT throughout the entire inner volume up to 4 cm from the walls. The quasi-static shielding factor at 0.01 Hz is about 100,000 in all three spatial directions and increases rapidly with frequency to reach 10^8 above 1 Hz.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2022)
Article
Instruments & Instrumentation
Manuel Zeyen, Lukas Affolter, Marwan Abdou Ahmed, Thomas Graf, Oguzhan Kara, Klaus Kirch, Miroslaw Marszalek, Francois Nez, Ahmed Ouf, Randolf Pohl, Siddharth Rajamohanan, Pauline Yzombard, Aldo Antognini, Karsten Schuhmann
Summary: The PDH technique is commonly used to stabilize the frequency of a laser to a stable optical resonator or vice versa. We propose an enhanced version of this technique that offers an infinite dynamic range, ensuring correct lock even after significant perturbations. By phase modulating the seed laser at a frequency corresponding to half the resonator's free spectral range, we eliminate the stable but off-resonant lock points present in conventional PDH error signals. We experimentally verify the effectiveness of our scheme using an injection-seeded Yb:YAG thin-disk laser and provide an analytical formulation for the PDH error signal with arbitrary modulation frequencies.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2023)
Article
Optics
A. Antognini, P. Crivelli, L. Gerchow, T. D. Hume, K. Kirch, A. Knecht, J. Nuber, A. Papa, N. Ritjoho, M. Sakurai, A. Soter, D. Taqqu, S. M. Vogiatzi, J. Zhang, L. Ziegler
Summary: In this article, muonium production at different temperatures and muonium-helium collisions are investigated. Compact detection schemes are developed to observe atomic muonium in vacuum. The conversion efficiency and characteristics of the superfluid helium converter are determined.
Article
Optics
C. Abel, N. J. Ayres, G. Ban, G. Bison, K. Bodek, V Bondar, E. Chanel, P-J Chiu, B. Clement, C. B. Crawford, M. Daum, S. Emmenegger, L. Ferraris-Bouchez, M. Fertl, P. Flaux, A. Fratangelo, W. C. Griffith, Z. D. Grujie, P. G. Harris, L. Hayen, N. Hild, M. Kasprzak, K. Kirch, P. Knowles, H-C Koch, P. A. Koss, A. Kozela, J. Krempel, B. Lauss, T. Lefort, Y. Lemiere, P. Mohanmurthy, O. Naviliat-Cuncic, D. Pais, F. M. Piegsa, G. Pignol, P. N. Prashanth, G. Quemener, M. Rawlik, D. Ries, D. Rebreyend, S. Roccia, D. Rozpedzik, P. Schmidt-Wellenburg, A. Schnabel, N. Severijns, J. A. Thorne, R. Virot, A. Weis, E. Wursten, G. Wyszynski, J. Zejma, G. Zsigmond
Summary: Experiments measuring the electric dipole moment of the neutron require precise control of magnetic-field uniformity. The nEDM experiment at the Paul Scherrer Institute uses a co-magnetometer to monitor magnetic-field variations, but it introduces the largest systematic error. Offline measurements were performed to evaluate and correct this effect, leading to an improvement in the neutron electric dipole moment measurement.
Article
Physics, Nuclear
G. Bison, M. Daum, K. Kirch, B. Lauss, D. Ries, P. Schmidt-Wellenburg, G. Zsigmond
Summary: Efficient neutron transport is crucial for the performance of ultracold neutron sources. The present study focuses on absolute UCN transport efficiency and reports complementary measurements on UCN density and transmission through a UCN guide section.
EUROPEAN PHYSICAL JOURNAL A
(2022)
Article
Optics
N. J. Ayres, G. Ban, G. Bison, K. Bodek, V Bondar, P-J Chiu, B. Clement, C. B. Crawford, M. Daum, S. Emmenegger, M. Fertl, A. Fratangelo, W. C. Griffith, Z. D. Grujic, P. G. Harris, K. Kirch, P. A. Koss, B. Lauss, T. Lefort, P. Mohanmurthy, O. Naviliat-Cuncic, D. Pais, F. M. Piegsa, G. Pignol, D. Rebreyend, I Rienacker, D. Ries, S. Roccia, K. U. Ross, D. Rozpedzik, P. Schmidt-Wellenburg, A. Schnabel, N. Severijns, B. Shen, R. Tavakoli Dinani, J. A. Thorne, R. Virot, N. Yazdandoost, J. Zejma, G. Zsigmond
Summary: The study investigates the impact of Johnson-Nyquist noise (JNN) originating from metal electrodes on measurement sensitivity, using surface- and volume-averaged root-mean-square normal noise amplitudes. It is shown that the performance of optically pumped Cs-133 magnetometers and Hg-199 comagnetometers in the new n2EDM apparatus is not limited by JNN, and that the impact of JNN is negligible in nEDM searches down to a sensitivity of 4 x 10(-28)e cm when using a comagnetometer system.
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)
