Article
Instruments & Instrumentation
E. Yu. Nikolskii, I. A. Muzalevskii, S. A. Krupko, A. A. Bezbakh, V. Chudoba, S. G. Belogurov, D. Biare, A. S. Fomichev, E. M. Gazeeva, A. V. Gorshkov, L. V. Grigorenko, G. Kaminski, M. Khirk, O. Kiselev, D. A. Kostyleva, M. Yu. Kozlov, B. Mauyey, I. Mukha, Yu. L. Parfenova, A. M. Quynh, V. N. Schetinin, A. Serikov, S. I. Sidorchuk, P. G. Sharov, R. S. Slepnev, S. V. Stepantsov, A. Swiercz, G. M. Ter-Akopian, R. Wolski, M. V. Zhukov
Summary: The extremely neutron-rich systems 7H and 6H were studied using 26 AMeV and 42 AMeV 8He and 10Be beams produced at ACCULINNA-2 fragment separator. Proton and deuteron pickup reactions 2H(8He, 3He)7H and 2H(8He, 4He)6H were used to investigate these systems, and the population of low-lying 9Li and 8Li states was also measured using reactions 2H(10Be,3He)9Li and 2H(10Be,4He)8Li. The experimental energy resolution and excitation spectra of 7H, 6H, 9Li, and 8Li were discussed and compared with simulations.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
(2023)
Article
Nuclear Science & Technology
Wei Liu, Qinglong Cui, Sheng Liu, Lizhen Liang, Yuanzhe Zhao, Shihua Song
Summary: The study focuses on the RF-driven ion source and plasma generation, with the development of a test facility and diagnostic tools for analysis. An improved RF compensation circuit has been successfully developed to reduce RF interference and enhance signal acquisition accuracy.
FUSION SCIENCE AND TECHNOLOGY
(2021)
Article
Medicine, General & Internal
Yisel Martinez Palenzuela, Vincent Barozier, Eric Chevallay, Thomas E. Cocolios, Charlotte Duchemin, Pascal Fernier, Mark Huyse, Laura Lambert, Roberto Lopez, Stefano Marzari, Joao P. Ramos, Thierry Stora, Piet Van Duppen, Alexey Vorozhtsov
Summary: CERN-MEDICIS is an off-line isotope separator facility designed for extracting radioisotopes for medical applications. The facility utilizes ion beam optics and magnetic field modeling using SIMION and OPERA, and has been optimized for optimal ion beam extraction, mass separation, and transport efficiency.
FRONTIERS IN MEDICINE
(2021)
Article
Multidisciplinary Sciences
Jiajie Zhou, Deren Kong, Fei Shang
Summary: This study proposes an evaluation method for the driving fragment ability of explosives, and verifies its feasibility and accuracy through experiments.
SCIENTIFIC REPORTS
(2023)
Article
Engineering, Electrical & Electronic
Xianfei Chen, Yu Huang, Pengbo Wang, Houxiu Xiao, Zhaolun Deng, Zhenglei Wang, Donghui Xia, Tao Peng, Xiaotao Han
Summary: This article analyzes the effects of the nonlinear interaction between the electron beam and wave in harmonic gyrotrons. The study focuses on the impact of electron velocity spread and beam radius spread on mode excitation, interaction efficiency, and mode competition. The results show that proper design consideration of the interaction circuit can expand the effective operating region of the harmonic mode and control efficiency degradation. However, beam radius spread plays a major role in efficiency degradation and mode competition.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2022)
Article
Multidisciplinary Sciences
Jiajie Zhou, Deren Kong, Fei Shang
Summary: The present study proposes an evaluation method for the driving fragment ability of explosives, which aims to provide theoretical and technical support for the selection of explosives used in warheads. The evaluation method is proposed in the light of the dimensional method and the similarity principle, and it uses TNT equivalent as the evaluation indicator. The proposed evaluation method is effective and accurate in evaluating the driving fragment ability of explosives, as confirmed by verification experiments and the calculation of TNT equivalent for a thermobaric explosive.
SCIENTIFIC REPORTS
(2023)
Article
Nuclear Science & Technology
Nicolo Marconato, Matteo Brombin, Mauro Pavei, Marco Tollin, Lucio Baseggio, Michele Fincato, Luca Franchin, Alberto Maistrello, Gianluigi Serianni
Summary: Magnetic fields in negative ion driven Neutral Beam Injectors play a crucial role in reducing electron temperature and density. Experimental results indicate that the topology of the magnetic field has an impact on plasma generation. Therefore, a new bus-bar layout was designed to optimize the magnetic field topology and expand the operating margin of experimental activities.
FUSION ENGINEERING AND DESIGN
(2021)
Article
Astronomy & Astrophysics
A. Di Pietro, A. C. Shotter, J. P. Fernandez-Garcia, P. Figuera, M. Fisichella, A. M. Moroc, M. Alcorta, M. J. G. Borge, T. Davinson, F. Ferrera, A. M. Laird, M. Lattuada, N. Soic, O. Tengblad, D. Torresi, M. Zadro
Summary: This paper presents the measurement results of elastic scattering excitation functions for the Li-9+He-4 reaction in the center-of-mass energy range, aiming to investigate the possible existence of molecular resonances in neutron-rich B-isotopes. The experiment utilized inverse kinematics on a gaseous He-4 target due to the short lifetime of 9Li. Broad resonances were observed in the excitation region of B-13. The orbiting reaction scenario is the most promising approach to interpret the data.
Article
Nuclear Science & Technology
Basile Pouradier Duteil, Alastair Shepherd, Tommaso Patton, Andrea Rigoni Garola, Riccardo Casagrande
Summary: SPIDER is a prototype of the ITER Heating Neutral Beam source that is being tested in Italy. It is important to investigate the behavior of the beam in order to meet ITER's requirements. The AC component of the beam current can provide insights on the impact of oscillations on the beam's optics. To prevent electrical discharges, SPIDER was operated with a mask to increase the space between beamlets, allowing for the installation of a Beamlet Current Monitor. The monitor identified recurring oscillations in the beamlet currents, which were correlated to oscillations caused by the RF oscillators or SPIDER's power supply systems.
FUSION ENGINEERING AND DESIGN
(2023)
Article
Engineering, Electrical & Electronic
Dimitra Psychogiou, Kunchen Zhao, Roberto Gomez-Garcia
Summary: This letter discusses the RF design and practical realization of dual-bandstop filters with compact size and two independently controlled rejection bands. The filters are based on miniaturized substrate-integrated-coaxial resonant stages and achieve further miniaturization by tuning the center frequency of the bands. Three prototypes were designed, manufactured, and measured to validate the concept.
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS
(2021)
Article
Engineering, Electrical & Electronic
Masood Molimoli Hajamohideen, Sreeja Balakrishanapillai Suseela
Summary: The study focuses on designing a compact and multi-stack EBG structure to improve the performance of passive components in the GHz frequency range. By loading different numbers of EBG in the filter, better stop band rejection can be achieved.
Article
Chemistry, Analytical
Hongyu Zhu, Wenhao Cui, Yanzhang Li, Mingxin Song
Summary: In this study, a fluid-filled RF MEMS switch was proposed and designed. Different filling dielectric materials were used to simulate and research their influence on the switch's performance. By comparing the results, silicone oil was selected as the best filling medium. The switch filled with silicone oil showed significantly reduced driving voltage and impact velocity, and exhibited good performance in terms of response time, impact speed, and insertion loss in the frequency range of 0-20 GHz.
Article
Physics, Nuclear
Chun-Wang Ma, Xiao-Bao Wei, Xi-Xi Chen, Dan Peng, Yu-Ting Wang, Jie Pu, Kai-Xuan Cheng, Ya-Fei Guo, Hui-Ling Wei
Summary: Machine learning models using Bayesian neural network techniques are constructed to predict fragment production cross sections in projectile fragmentation reactions. The models have been verified to accurately reproduce fragment productions under different reaction conditions.
Article
Engineering, Electrical & Electronic
Ruijie Qin, Binzhen Zhang, Cheng Lei, Yongqing Xu, Jiani Qin, Chao Fan, Baoli Mi, Y. Y. Wang, Junping Duan
Summary: In this paper, a new switching beam design method is proposed to design an RF MEMS switch with a frequency band of 1-110 GHz. The method increases the capacitance ratio between the two states of the switch, extending its working bandwidth.
MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS
(2021)
Review
Chemistry, Physical
Abedin Nematpour, Maria Luisa Grilli, Laura Lancellotti, Nicola Lisi
Summary: Graphene is a promising material for the fabrication of novel photonic and optoelectronic devices, but its absorption is too low and needs to be enhanced. This paper summarizes recent progress in enhancing graphene absorption using Si/SiO2-based Fabry-Perot filters fabricated by radiofrequency sputtering. Various technical expedients were used to increase the absorption rate of single layer CVD graphene from 39% to 84%.
Article
Instruments & Instrumentation
S. Noji, R. G. T. Zegers, G. P. A. Berg, A. M. Amthor, T. Baumann, D. Bazin, E. E. Burkhardt, M. Cortesi, J. C. DeKamp, M. Hausmann, M. Portillo, D. H. Potterveld, B. M. Sherrill, A. Stolz, O. B. Tarasov, R. C. York
Summary: A High Rigidity Spectrometer (HRS) has been designed for experiments at the Facility for Rare-Isotope Beams (FRIB) at Michigan State University (MSU), allowing for the study of exotic neutron-rich isotopes at high beam energies. The HRS consists of a High-Transmission Beamline (HTBL) and a Spectrometer Section, with a maximum magnetic rigidity of 8 Tm.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2023)
Article
Instruments & Instrumentation
S. Giraud, J. C. Zamora, R. G. T. Zegers, Y. Ayyad, D. Bazin, W. Mittig, A. Carls, M. DeNudt, Z. Rahman
Summary: Charge-exchange (d,2He) reactions in inverse kinematics at intermediate energies are a promising method for studying Gamow-Teller transition strength in unstable nuclei. A simulation and analysis software based on the ATTPCROOT package was developed to investigate such reactions using the AT-TPC. The software allows for realistic detector response simulation, development of analysis tools, and investigation of space-charge effects in track reconstruction.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2023)
Article
Physics, Multidisciplinary
S. Giraud, J. C. Zamora, R. G. T. Zegers, D. Bazin, Y. Ayyad, S. Bacca, S. Beceiro-Novo, B. A. Brown, A. Carls, J. Chen, M. Cortesi, M. DeNudt, G. Hagen, C. Hultquist, C. Maher, W. Mittig, F. Ndayisabye, S. Noji, S. J. Novario, J. Pereira, Z. Rahman, J. Schmitt, M. Serikow, L. J. Sun, J. Surbrook, N. Watwood, T. Wheeler
Summary: For the first time, the (d, 2He) reaction was successfully used in inverse kinematics to extract the Gamow-Teller transition strength in the & beta; thorn direction from an unstable nucleus. The new technique opens a path to addressing a range of scientific challenges, including in astrophysics and neutrino physics. In this study, the nucleus 14O was examined and its Gamow-Teller transition strength to 14N was extracted, providing insights into the quenching phenomenon.
PHYSICAL REVIEW LETTERS
(2023)
Article
Astronomy & Astrophysics
M. Spieker, S. E. Agbemava, D. Bazin, S. Biswas, P. D. Cottle, P. J. Farris, A. Gade, T. Ginter, S. Giraud, K. W. Kemper, J. Li, W. Nazarewicz, S. Noji, J. Pereira, L. A. Riley, M. Smith, D. Weisshaar, R. G. T. Zegers
Summary: Inelastic proton scattering experiments in inverse kinematics were performed on the rare isotopes 74,76Kr to study their structure. The focus was on the J pi = 4+1 states and the hexadecapole degree of freedom. By performing coupled-channels calculations, deformation parameters /34 for the Kr isotopes were determined, and two possible solutions were found. Comparisons to predictions from nuclear energy density functional theory favored large, positive /34 solutions, which are linked to well deformed prolate configurations. The /34 values may serve as sensitive measures of the nuclear shell structure.
Article
Physics, Nuclear
B. Longfellow, A. Gade, D. Bazin, P. C. Bender, M. Bowry, B. A. Brown, B. Elman, E. Lunderberg, D. Rhodes, M. Spieker, D. Weisshaar, S. J. Williams
Summary: Intermediate-energy nuclear reactions involving the removal of three, four, and five nucleons can proceed through nondissipative and statistical processes. In this experiment at the National Superconducting Cyclotron Laboratory, gamma-ray spectroscopy was used to study few-nucleon removal reactions from different projectile beams to the same reaction product. The results showed significant differences in the population of states in the reaction product, which were correlated with the spins of the states. This intermediate regime may have the potential to produce unique level populations in fast-beam experiments and alter isomer to ground state ratios.
Article
Astronomy & Astrophysics
A. Revel, J. Wu, H. Iwasaki, J. Ash, D. Bazin, B. A. Brown, J. Chen, R. Elder, P. Farris, A. Gade, M. Grinder, N. Kobayashi, J. Li, B. Longfellow, T. Mijatovic, J. Pereira, A. Poves, A. Sanchez, N. Shimizu, M. Spieker, Y. Utsuno, D. Weisshaar
Summary: The heavy-ion inelastic scattering of neutron-rich nucleus 29Ne to its excited states was studied using a 100.1 MeV/u 29Ne rare isotope beam. The simultaneous measurements of the two inelastic reactions were conducted, providing the first measurement of transition strengths for this isotope. A significant E2 strength in the excitation to the 931-keV state was observed, indicating a large degree of collectivity.
Article
Physics, Nuclear
H. L. Crawford, M. D. Jones, A. O. Macchiavelli, P. Fallon, D. Bazin, P. C. Bender, B. A. Brown, C. M. Campbell, R. M. Clark, M. Cromaz, B. Elman, A. Gade, J. D. Holt, R. V. F. Janssens, I. Y. Lee, B. Longfellow, S. Paschalis, M. Petri, A. L. Richard, M. Salathe, J. A. Tostevin, D. Weisshaar
Summary: The 9Be(25F(5/2+), 24O)X proton-removal reaction was studied, and it was found that the proton d5/2 strength in the ground-state to ground-state transition is significantly depleted compared to shell-model expectations. The experimental data can be well explained within the framework of the Particle-Vibration Coupling (PVC) model, suggesting the presence of a quadrupole phonon in the effective 24O* core.
Article
Physics, Nuclear
A. Gade, D. Weisshaar, B. A. Brown, D. Bazin, K. W. Brown, R. J. Charity, P. Farris, A. M. Hill, J. Li, B. Longfellow, D. Rhodes, W. Reviol, J. A. Tostevin
Summary: This study reports in-beam gamma-ray spectroscopy of higher-spin, complex-structure states in 39Ca, and provides additional data and discussion on the nuclear structure of 38Ca.
Article
Physics, Nuclear
J. Chen, B. P. Kay, T. L. Tang, I. A. Tolstukhin, C. R. Hoffman, H. Li, P. Yin, X. Zhao, P. Maris, J. P. Vary, G. Li, J. L. Lou, M. L. Avila, Y. Ayyad, S. Bennett, D. Bazin, J. A. Clark, S. J. Freeman, H. Jayatissa, C. Muller-Gatermann, A. Munoz-Ramos, D. Santiago-Gonzalez, D. K. Sharp, A. H. Wuosmaa, C. X. Yuan
Summary: In this study, deuteron elastic scattering and inelastic scattering reactions to the first excited state of 15C were investigated using a radioactive beam of 15C in inverse kinematics. The analysis of the experimental data and comparison with theoretical calculations provided insights into the structure of 15C.
Article
Physics, Nuclear
S. Uthayakumaar, M. A. Bentley, E. C. Simpson, T. Haylett, R. Yajzey, S. M. Lenzi, W. Satula, D. Bazin, J. Belarge, P. C. Bender, P. J. Davies, B. Elman, A. Gade, H. Iwasaki, D. Kahl, N. Kobayashi, B. Longfellow, S. J. Lonsdale, E. Lunderberg, L. Morris, D. R. Napoli, T. G. Parry, X. Pereira-Lopez, F. Recchia, J. A. Tostevin, R. Wadsworth, D. Weisshaar
Summary: Level schemes of the proton-rich nuclei Mn-47 and Cr-45 have been established for the first time. Mirror energy differences between mirrored states were studied and interpreted using different approaches. The coexistence of spherical and deformed structures near the ground state in Cr-45 provides a stringent test for model predictions.
Article
Physics, Nuclear
J. Schmitt, G. B. King, R. G. T. Zegers, Y. Ayyad, D. Bazin, B. A. Brown, A. Carls, J. Chen, A. Davis, M. DeNudt, J. Droste, B. Gao, C. Hultquist, H. Iwasaki, S. Noji, S. Pastore, J. Pereira, M. Piarulli, H. Sakai, A. Stolz, R. Titus, R. B. Wiringa, J. C. Zamora
Summary: In this study, the (p, n) charge-exchange reaction was used to test the extraction of beta-Gamow-Teller transition strengths, B(GT), from proton-rich unstable isotopes. The results were compared to shell-model and ab initio calculations, and demonstrated the feasibility of using this method.
Article
Physics, Nuclear
M. Spieker, L. A. Riley, P. D. Cottle, K. W. Kemper, D. Bazin, S. Biswas, P. J. Farris, A. Gade, T. Ginter, S. Giraud, J. Li, S. Noji, J. Pereira, M. Smith, D. Weisshaar, R. G. T. Zegers
Summary: Enhanced octupole collectivity is observed in the neutron-deficient Ge, Se, and Kr isotopes. However, theoretical models struggle to predict octupole collectivity accurately due to shape coexistence and configuration mixing. In this study, the rare isotopes 72Se and 74,76Kr were investigated, revealing two distinct regions of octupole strengths near the shape-transitional point at A=72.
Article
Physics, Nuclear
T. L. Tang, C. R. Hoffman, B. P. Kay, I. A. Tolstukhin, S. Almaraz-Calderon, B. W. Asher, M. L. Avila, Y. Ayyad, K. W. Brown, D. Bazin, J. Chen, K. A. Chipps, P. A. Copp, M. Hall, H. Jayatissa, H. J. Ong, D. Santiago-Gonzalez, D. K. Sharp, J. Song, S. Stolze, G. L. Wilson, J. Wu
Summary: The isomeric state of 16N, a neutron-halo state, was studied using the 16Ng,m(d,3He) proton-removal reactions. The relative spectroscopic factors were extracted using a distorted-wave Born approximation approach, and the effects of weak binding were taken into account using a Woods-Saxon potential model.
Article
Physics, Nuclear
N. Kitamura, K. Wimmer, T. Miyagi, A. Poves, N. Shimizu, J. A. Tostevin, V. M. Bader, C. Bancroft, D. Barofsky, T. Baugher, D. Bazin, J. S. Berryman, V Bildstein, A. Gade, N. Imai, T. Kroell, C. Langer, J. Lloyd, E. Lunderberg, F. Nowacki, G. Perdikakis, F. Recchia, T. Redpath, S. Saenz, D. Smalley, S. R. Stroberg, Y. Utsuno, D. Weisshaar, A. Westerberg
Summary: This study aims to extend the level scheme of 32Mg, provide spin-parity assignments to excited states, and discuss the microscopic structure of each state through comparisons with theoretical calculations. The experimental results revealed a significantly updated level scheme for 32Mg, with negative-parity intruder and positive-parity normal states, and were confronted with four different nuclear structure models. However, unexplained discrepancies remain, and the structure of this key nucleus is not yet fully captured even with state-of-the-art theoretical approaches.
Article
Physics, Nuclear
A. N. Kuchera, D. Bazin, T. Phan, J. A. Tostevin, M. Babo, T. Baumann, P. C. Bender, M. Bowry, J. Bradt, J. Brown, P. A. DeYoung, B. Elman, J. E. Finck, A. Gade, G. F. Grinyer, M. D. Jones, B. Longfellow, E. Lunderberg, T. H. Redpath, W. F. Rogers, K. Stiefe, M. Thoennessen, D. Votaw, D. Weisshaar, K. Whitmore, R. B. Wiringa
Summary: This study investigates nucleon removal reactions and validates the models used to calculate the removal reaction cross sections. Three different nucleon removal reactions were performed and the partial cross sections to individual final states were determined by detecting the residual nuclei in coincidence with gamma rays. Comparison between measured and calculated cross sections reveals that the theoretical description of the removal process is in better agreement with the data when removing weakly bound nucleons.
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)
