Article
Instruments & Instrumentation
Mahdi Rafieian Najaf Abadi, Masoud Mahjour-Shafiei
Summary: The dependence of the emittance of He+ beam from a cold cathode Penning ion source on source discharge voltage, anode length, and cathode to anode distance was studied through 2D3V particle-in-cell Monte Carlo simulation. Increasing the cathode to anode distance led to a reduction in rms emittance, while increasing the anode length slightly improved the emittance.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2021)
Article
Multidisciplinary Sciences
Prashant K. Singh, Parvin Varmazyar, Bence Nagy, Joon-Gon Son, Sargis Ter-Avetisyan, Karoly Osvay
Summary: This article presents the spatial characterization of a 0.5 MeV proton beam generated by intense laser-foil interaction. The proton beam was used to obtain high-resolution radiographs of a fine mesh. The beam has a small source size and low divergence, resulting in an ultralow transverse emittance that is significantly smaller than that of a conventional accelerator beam.
SCIENTIFIC REPORTS
(2022)
Article
Instruments & Instrumentation
Hong Zhang, Pengjiao Zhang, Jie Song, Sun An
Summary: The beam characterization studies were conducted on a duoplasmatron ion source developed for the Nanjing Proton Source, including beam current, beam profile, and RMS normalized emittance. By measuring and analyzing the beam parameters in detail, the optimal operating point was found, solving the sparking problem of the ion source.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2022)
Article
Instruments & Instrumentation
S. Corradetti, M. Manzolaro, S. M. Carturan, M. Ballan, L. Centofante, G. Lilli, A. Monetti, L. Morselli, D. Scarpa, A. Donzella, A. Zenoni, A. Andrighetto
Summary: The target material at the core of facilities producing radioactive ion beams for nuclear physics research must withstand extreme conditions of temperature and pressure, as well as intense bombardment by light particle beams. The accurate choice and design of materials are crucial, particularly in high-power facilities like SPES where strong thermal gradients are present. Recent studies have focused on research and development of targets in the SPES framework, with an overview of production techniques and synthesized materials.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
(2021)
Article
Instruments & Instrumentation
Renli Zhu, Weidong Chen, Hui Li, Huafu Ouyang, Shengjin Liu, Yongchuan Xiao, Yongjia Lu, Xiuxia Cao, Fang Li, Jilei Sun, Shunming Liu, Kangjia Xue
Summary: This paper studies the low energy beam transport line in the China Spallation Neutron Source project and focuses on the optimization of transverse emittance. Through computational simulation and experimental verification, the impact of magnetic fields on emittance growth is analyzed, and the uncertainty of measurement instruments is estimated. The beam extraction system is optimized using particle tracking simulation.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2022)
Article
Nuclear Science & Technology
Giordano Lilli, Lisa Centofante, Mattia Manzolaro, Alberto Monetti, Roberto Oboe, Alberto Andrighetto
Summary: The SPES facility at Legnaro National Laboratories aims to produce intense RIBs for interdisciplinary research using the ISOL technique. The facility employs a cyclotron proton driver to generate a 40 MeV 200 mA proton beam that interacts with a uranium carbide target to produce radioactive isotopes. The Target Ion Source (TIS) plays a crucial role in extracting, ionizing, separating, and delivering the radioactive nuclei. Autonomous systems are used to handle the TIS unit in the highly radioactive environment, ensuring safety and smooth operation of the facility.
NUCLEAR ENGINEERING AND TECHNOLOGY
(2023)
Article
Engineering, Industrial
Giordano Lilli, Matteo Sanavia, Roberto Oboe, Chiara Vianello, Mattia Manzolaro, Pasquale Luca De Ruvo, Alberto Andrighetto
Summary: This paper presents the Probabilistic Risk Assessment (PRA) developed for crucial components of the SPES nuclear facility, aiming to improve operational safety and reliability. HAZOP and LOPA methods were used to evaluate the risk and consequences of failure scenarios, leading to proposed safety measures and design improvements.
RELIABILITY ENGINEERING & SYSTEM SAFETY
(2024)
Article
Multidisciplinary Sciences
Edgar Andres Sanchez, Alain Flores, Jorge Hernandez-Cobos, Matias Moreno, Armando Antillon
Summary: The objective of this article is to propose a scheme to increase the stability zone of a charged particles beam in synchrotrons. This is achieved by using a suitable objective function that inhibits the resonances onset in phase space and improves the dynamic aperture of electrons in storage rings. The proposed technique involves constructing a quasi-invariant in a neighborhood of the origin of the phase space and solving sets of coupled differential equations with periodic boundary conditions using symbolic computation software. The objective function is optimized using a genetic algorithm, resulting in an increased dynamic aperture. Comparisons with particle tracking simulations show good agreement.
SCIENTIFIC REPORTS
(2023)
Article
Instruments & Instrumentation
D. Scarpa, E. Mariotti, O. S. Khwairakpam, V. Parenti, A. Buono, P. Nicolosi, M. Calderolla, A. Khanbekyan, M. Ballan, L. Centofante, S. Corradetti, G. Lilli, M. Manzolaro, A. Monetti, L. Morselli, A. Andrighetto
Summary: The Selective Production of Exotic Species project aims to produce highly pure Radioactive Ion Beams (RIBs) by activating fragments with a proton beam. The resonant laser ionization technique is used to select specific atomic species, and a laser system has been installed to continuously monitor and stabilize the laser beams.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2022)
Article
Instruments & Instrumentation
A. Hoover, N. J. Evans
Summary: Researchers are testing a phase space painting method to generate a coasting hadron beam that has an elliptical transverse profile, uniform charge density, and small transverse 4D emittance. The 4D emittance of the beam can be reconstructed from measured beam profiles using either the multi-optics method or the fixed-optics method. The fixed-optics method has faster speed but may have larger uncertainty in the reconstructed 4D emittance. The researchers implement a variant of the multi-optics method using wire-scanners and modify the wire-scanner region to reduce the uncertainty of the fixed-optics method. They demonstrate the usefulness of the fixed-optics method by reconstructing the 4D emittance evolution during accumulation in the SNS ring.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2022)
Article
Agriculture, Dairy & Animal Science
Fernando Antonio Moreira Petri, Geovana Coelho Ferreira, Laiza Pinto Arruda, Clarisse Sena Malcher, Gabriel Yuri Storino, Henrique Meiroz de Souza Almeida, Karina Sonalio, Daniela Gomes da Silva, Luis Guilherme de Oliveira
Summary: Porcine Respiratory Diseases Complex (PRDC) is a multifactorial disease involving several bacterial pathogens in pigs. This study used slaughterhouse pleurisy evaluation system (SPES) to assess the respiratory conditions of 1015 pig carcasses from three commercial farms. qPCR testing of pleural and lung fragments revealed moderate correlations between the severity of lesions and the presence of specific pathogens. The presence of P. multocida and M. hyopneumoniae showed strong correlations in the pleura.
Article
Materials Science, Coatings & Films
Zhehui Zhang, Sreepathy Sridhar, Guoying Wei, Yundan Yu, Zhongquan Zhang, Li Jiang, Yumeng Yang, Muhammad Wakil Shahzad, Xue Chen, Ben Bin Xu
Summary: Research focuses on achieving a porous black layer on the surface of aluminium alloy through an environmentally friendly anodic oxidation process, with high thermal emittance and solar absorptivity; the black thermo-anodized coating layer shows unique anti-corrosion property under UV irradiation; a hybrid hydrophobic surface and anti-icing feature can be realized through post-treatment with silane.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Nuclear Science & Technology
Wen-Xing Wang, Cheng Li, Zhi-Gang He, Shan-Cai Zhang, Rui-Xuan Huang, Wei-Wei Li, Ping Lu, Chuan Li, Lei-Lei Tang, Feng-Lei Shang, Fang-Fang Wu, Da-Chun Jia, Hai-Yan Zhang, Wei Wang
Summary: The Hefei Advanced Light Facility (HALF) has achieved successful injection of high-quality electron bunches with low emittance through the development of photocathode radio frequency (RF) gun, providing a reliable foundation for the operation of the storage ring.
NUCLEAR SCIENCE AND TECHNIQUES
(2022)
Article
Physics, Multidisciplinary
Christian G. Schroer, Hans-Christian Wille, Oliver H. Seeck, Kai Bagschik, Horst Schulte-Schrepping, Markus Tischer, Heinz Graafsma, Wiebke Laasch, Karolin Baev, Stephan Klumpp, Riccardo Bartolini, Harald Reichert, Wim Leemans, Edgar Weckert
Summary: PETRA III at DESY is one of the brightest synchrotron radiation sources in the world, serving a broad international user community. It is an ideal candidate for upgrading to the ultra-low emittance source PETRA IV, which will significantly increase the spectral brightness. PETRA IV will be the ultimate in situ 3D microscope for biological, chemical, and physical processes, addressing key questions in various fields.
EUROPEAN PHYSICAL JOURNAL PLUS
(2022)
Article
Physics, Nuclear
River R. Robles, Obed Camacho, Atsushi Fukasawa, Nathan Majernik, James B. Rosenzweig
Summary: This article discusses the implementation of very high gradient acceleration in a high frequency, cryogenic rf photoinjector by introducing rich spatial harmonic content in the accelerating modes. Higher spatial harmonics provide enhanced linear focusing effects and potentially deleterious nonlinear transverse forces. The study investigates the unique exploitation of this source's capabilities for advanced applications and proposes a novel cryogenic solenoid system for managing power and dark current-related challenges.
PHYSICAL REVIEW ACCELERATORS AND BEAMS
(2021)
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)