Article
Nuclear Science & Technology
Yihong Yan, Xinjian Tan, Xiufeng Weng, Xiaodong Zhang, Zhikai Zhang, Weiqiang Sun, Guang Hu, Huasi Hu
Summary: Photoneutron background spectroscopy observations at linac are essential for directing accelerator shielding and subtracting background signals. The Bonner Sphere Spectrometer (BSS) system was constructed to measure and acquire the undesirable neutron spectrum of the 120 MeV electron linac. The results measured by this system provide guidance for linac-related research.
NUCLEAR ENGINEERING AND TECHNOLOGY
(2023)
Article
Instruments & Instrumentation
Victor Perez-Medina-Ollivary, Armando Varela-Gonzalez, Jaime Klapp, Rafael Policromeades-Rueda
Summary: To solve the Fredholm equation of the first kind, a Bonner spectrometer can be used to discretize the domain into M spheres and N energy bins. The neutron flux can be inferred from the response matrix Rij(E) and the count rate obtained for each sphere Ci. A new method is proposed to extract neutron energy spectra by partitioning the response matrix into multiple matrices and solving M equations with M unknowns for each energy segment. The neutron spectra can be recovered by combining successive energy intervals.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2023)
Article
Chemistry, Inorganic & Nuclear
Alvie Asuncion-Astronomo, Charlotte Balderas, Frederick C. Hila, Rafael Miguel M. Dela Cruz, Cheri Anne M. Dingle, Williard B. Solmeron, Roberto Bedogni
Summary: The In-MuNS neutron spectrometer with indium foil detector was developed to evaluate intense neutron fields from medical accelerators. The response matrix was calculated using MCNP5 v.1.6 with ENDF/B-VIII.0 nuclear data, and validated through experiments with a(252)Cf source. The contribution of scattered neutrons to foil activity was analyzed, demonstrating the model's validity and the portability of In-MuNS as an alternative to conventional Bonner spheres.
APPLIED RADIATION AND ISOTOPES
(2021)
Article
Physics, Multidisciplinary
R. Bedogni, A. Fontanilla, A. Calamida, A. I. Castro Campoy, L. Russo, V. Monti, E. Mafucci, C. Vigorito, S. Vernetto, A. Pietropaolo
Summary: Within the INFN project SAMADHA, neutron spectrum measurements were conducted at 3480 m a.s.l. in the Italian western Alps. An extended range Bonner Sphere Spectrometer was used to distinguish genuine neutron events from spurious ones. The measurements included neutron fluence rate, energy distribution, ambient dose equivalent, and arrival time distribution. The high-energy component of the neutron fluence rate was compared to literature data and fitted with an exponential curve for universal application.
EUROPEAN PHYSICAL JOURNAL PLUS
(2023)
Article
Chemistry, Physical
Roberto Garcia-Baonza, Alfredo Lorente, Sviatoslav Ibanez, M. A. S. Lacerda, Igor A. Machado, Eduardo Gallego, Gonzalo F. Garcia-Fernandez, Lenin E. Cevallos-Robalino, Hector R. Vega-Carrillo
Summary: This study presents the testing of a new extended-range Bonner Spheres Spectrometer (BSS) designed by UPM to support the development of proton therapy technology in Spain. The experimental results, obtained using the ReBUNKI unfolding code for the first time in this type of BSS, are validated through a comparison with several other unfolding codes.
RADIATION PHYSICS AND CHEMISTRY
(2023)
Article
Nuclear Science & Technology
J. M. Gomez-Ros, R. Bedogni, C. Domingo, J. S. Eakins, N. Roberts, R. J. Tanner
Summary: This paper summarizes the results of an international comparison exercise on neutron spectra unfolding. Four realistic situations were considered, and reference solutions along with participants' unfolded results were provided. Explanations for discrepancies and suggestions for improvement were also proposed.
RADIATION MEASUREMENTS
(2022)
Article
Instruments & Instrumentation
Alvie Asuncion-Astronomo, Cheri Anne M. Dingle, Frederick C. Hila, Charlotte Balderas, Carlitos P. Silvestre, Rafael Miguel M. Dela Cruz, Roberto Bedogni
Summary: The newly developed MuNS neutron spectrometer features a compact multi-shell design that can be configured into Bonner spheres of various diameters, providing flexibility and portability for neutron detection. Monte Carlo simulations and validation tests confirm the accuracy of the system's response matrix and model, ensuring reliable neutron count measurements.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2021)
Article
Chemistry, Physical
Sandipan Dawn, Sujoy Chatterjee, Shatabdi Chakrabarty, S. Mufti, A. K. Bakshi, B. K. Sapra
Summary: Research on cosmic ray neutron spectra and ambient dose equivalents was carried out in a high-altitude region of India, with no significant seasonal variations observed. Experimentally measured values matched reasonably well with theoretically simulated results.
RADIATION PHYSICS AND CHEMISTRY
(2021)
Article
Engineering, Biomedical
Gabriele Zorloni, Geert Bosmans, Thomas Brall, Marco Caresana, Marijke De Saint-Hubert, Carles Domingo, Christian Ferrante, Francesca Ferrulli, Renata Kopec, Johannes Leidner, Vladimir Mares, Racell Nabha, Pawel Olko, Miguel Angel Caballero-Pacheco, Werner Ruehm, Marco Silari, Liliana Stolarczyk, Gloria Vilches-Freixas, Jan Swakon, Marco Tisi, Sebastian Trinkl, Olivier Van Hoey
Summary: Proton therapy is becoming popular due to its improved dose delivery, but the choice of appropriate survey meter for assessing neutron ambient dose equivalent requires prior knowledge of facility type and radiation field. A study conducted at the Maastro Proton Therapy center in the Netherlands compared the reliability of different rem-counters, finding that only LUPIN provided accurate assessments within a 20% uncertainty.
PHYSICS IN MEDICINE AND BIOLOGY
(2022)
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
Nuclear Science & Technology
Tetsuro Matsumoto, Akihiko Masuda, Eunji Lee, Toshiya Sanami, Takahiro Oyama, Tsuyoshi Kajimoto, Noriaki Nakao, Hiroshi Yashima, Seiji Nagaguro, Yoshitomo Uwamino, Seiya Manabe, Nobuhiro Shigyo, Hideki Harano, Robert Froeschl, Elpida Iliopoulou, Angelo Infantino, Stefan Roesler, Markus Brugger
Summary: In this study, neutron energy spectra were measured using a Bonner sphere spectrometer for different thicknesses of concrete and steel shielding. The obtained spectra cover the entire energy range from thermal energy to high energy.
JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY
(2023)
Article
Instruments & Instrumentation
D. K. -T. Wong, M. T. Hassan, J. F. Burdine, T. E. Chupp, S. M. Clayton, C. Cude-Woods, S. A. Currie, T. M. Ito, C. -Y. Liu, M. Makela, C. L. Morris, C. M. O'Shaughnessy, A. Reid, N. Sachdeva, F. W. Uhrich
Summary: In this paper, the ongoing neutron electric dipole moment (nEDM) experiment at Los Alamos National Laboratory is described, which utilizes ultracold neutrons and Ramsey's method to search for a nEDM. Measurements of ultracold neutron storage and transport are presented during the commissioning of a new beamline at the UCN source, demonstrating sufficient stored polarized UCN to achieve a statistical uncertainty of odn = 2x 10-27 e cm in 5 years of running. An analytical model is also provided to describe the data and parameterize the input UCN energy spectrum on the new beamline.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2023)
Article
Chemistry, Multidisciplinary
Bin Zhou, Fei Shen, Zhiliang Hu, Songlin Wang, Xichao Ruan, Tianjiao Liang
Summary: A measurement technique was proposed to experimentally study stray neutrons inside neutron scattering instruments at CSNS. The feasibility of the method was demonstrated through verification experiments.
APPLIED SCIENCES-BASEL
(2022)
Article
Instruments & Instrumentation
T. Chulapakorn, S. Wonglee, W. Pornroongruengchok, T. Liamsuwan, S. Kotayee
Summary: Neutron imaging was used for nondestructive internal inspection at the Thai Research Reactor, with neutron activation analysis employed to determine thermal-neutron flux. Evaluation of image quality parameters showed that adjusting sample shape and collimator aperture size can improve collimation ratio and resolution for neutron imaging.
JOURNAL OF INSTRUMENTATION
(2021)
Article
Instruments & Instrumentation
Lucas B. Sommer, Tobias Chemnitz, Severin Kampfer, Dominik Bausenwein, Alexander Beimler, Markus Kellermeier, Rudolf Schuetz, Jan J. Wilkens, Franz M. Wagner
Summary: In order to upgrade the fission neutron therapy facility and optimize dose output, a newly designed electronically operated Multi Leaf Collimator (MLC) was introduced. The new collimator allows for divergent and convergent beam shaping, maximizing the effective area of the fission source. The motorized operation of the new MLC also reduces radiation dose for staff members compared to the old MLC.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2023)
Article
Nuclear Science & Technology
Christelle Huet, Jonathan Eakins, Maria Zankl, Jose Maria Gomez-Ros, Jan Jansen, Montserrat Moraleda, Lara Struelens, Deepak K. Akar, Jorge Borbinha, Hrvoje Brkic, Duc Ky Bui, Kevin Capello, Thi My Linh Dang, Laurent Desorgher, Salvatore Di Maria, Lior Epstein, Dario Faj, Karin Fantinova, Paolo Ferrari, Sebastian Gossio, John Hunt, Zoran Jovanovic, Han Sung Kim, Dragana Krstic, Ngoc Thiem Le, Yi-Kang Lee, Manohari Murugan, Minal Y. Nadar, Ngoc-Quynh Nguyen, Dragoslav Nikezic, Hemant K. Patni, Denison Souza Santos, Marilyn Tremblay, Sebastian Trivino, Katarzyna Tyminska
Summary: This study compared the use of ICRP reference computational phantoms with radiation transport codes. Three exercises were conducted, showing discrepancies between participants' solutions and the reference solutions.
RADIATION MEASUREMENTS
(2022)
Article
Nuclear Science & Technology
J. M. Gomez-Ros, R. Bedogni, C. Domingo, J. S. Eakins, N. Roberts, R. J. Tanner
Summary: This paper summarizes the results of an international comparison exercise on neutron spectra unfolding. Four realistic situations were considered, and reference solutions along with participants' unfolded results were provided. Explanations for discrepancies and suggestions for improvement were also proposed.
RADIATION MEASUREMENTS
(2022)
Correction
Chemistry, Physical
R. Mendez, J. M. Gomez-Ros, D. J. Thomas, A. K. Thompson, R. Bedogni
RADIATION PHYSICS AND CHEMISTRY
(2022)
Article
Nuclear Science & Technology
Hans Rabus, Maria Zankl, Jose Maria Gomez-Ros, Carmen Villagrasa, Jonathan Eakins, Christelle Huet, Hrvoje Brkic, Rick Tanner
Summary: This paper reviews the experience gained from a series of intercomparison exercises in computational dosimetry conducted by EURADOS Working Group 6. It highlights the resulting conclusions for future exercises and the current state of the art and need for development in terms of quality assurance for computational dosimetry techniques.
RADIATION MEASUREMENTS
(2022)
Article
Chemistry, Physical
P. Teles, J. Antunes, J. M. Gomez-Ros
Summary: A correct dosimetry of radionuclides in small animals is crucial for developing radiopharmaceuticals. This study determined the S-values for Tc-99m in the DIGIMOUSE voxel phantom using the MIRD methodology and Monte Carlo simulations. The obtained results showed a deviation of 5% or less compared to other studies in the literature. The study also provided a qualitative analysis of the crossfire S-values.
RADIATION PHYSICS AND CHEMISTRY
(2022)
Article
Chemistry, Analytical
Vittoria D'Avino, Fabrizio Ambrosino, Roberto Bedogni, Abner Ivan C. Campoy, Giuseppe La Verde, Silvia Vernetto, Carlo Francesco Vigorito, Mariagabriella Pugliese
Summary: The study characterizes a thermoluminescent dosimeter system for long-term neutron dose monitoring at high altitudes. The system was calibrated and exposed, demonstrating a good performance for neutron dosimetry.
Article
Physics, Multidisciplinary
R. Bedogni, A. Calamida, A. Fontanilla, A. I. Castro Campoy, T. Napolitano, C. Cantone, E. Mafucci, V Monti, S. Altieri, J. M. Gomez-Ros, M. Pillon, A. Pietropaolo
Summary: A new directional neutron spectrometer called NCT-WES has been developed as a more compact and portable alternative to current state-of-the-art devices. It was used for the first time to characterize the near-target field generated by an accelerator-driven D-D fusion neutron source, and proved to be a promising device for angular spectrometric characterization of neutron-emitting targets.
EUROPEAN PHYSICAL JOURNAL PLUS
(2022)
Article
Nuclear Science & Technology
Oriol Sans-Planell, Marco Costa, Elisabetta Durisi, Ettore Mafucci, Luca Menzio, Valeria Monti, Lorenzo Visca, Francesco Grazzi, Roberto Bedogni, Saverio Altieri
Summary: This paper presents the first determination of improvements in beam divergence when including the ANET Compact Neutron Collimator on an existing thermal neutron beam. The study was conducted at LENA Mark-II TRIGA reactor in Pavia. The novel collimator has scalability and compactness, allowing for higher collimation power within a limited space.
JOURNAL OF NEUTRON RESEARCH
(2022)
Article
Nuclear Science & Technology
J. M. Gomez-Ros, R. Bedogni, C. Domingo
Summary: Neutron personal dosimetry is crucial for monitoring exposed workers in both the nuclear industry, related activities, and in increasing neutron producing facilities. This article reviews the current state-of-the-art and the latest advancements in neutron personal dosimetry using electronic personal dosimeters (EPDs), track dosimeters (etched track dosimeters, FNTD), luminescent dosimeters (TL, OSL, RPL), superheated drop dosimeters, and direct ion storage (DIS) dosimeters.
RADIATION MEASUREMENTS
(2023)
Article
Physics, Multidisciplinary
A. Fontanilla, A. Calamida, A. I. Castro Campoy, C. Cantone, A. Pietropaolo, J. M. Gomez-Ros, V. E. MontiMafucci, S. Vernetto, A. Pola, D. Bortot, R. Bedogni
Summary: A Bonner sphere spectrometer was designed and used to measure cosmic neutrons at high elevation. It consists of 8 moderating spheres, each containing a He-3 proportional counter. The response matrix was calculated and the overall uncertainty was estimated through exposure in a reference neutron field.
EUROPEAN PHYSICAL JOURNAL PLUS
(2022)
Article
Physics, Multidisciplinary
R. Bedogni, A. Calamida, A. I. Castro Campoy, A. Fontanilla, J. M. Gomez-Ros, V. Monti, E. Mafucci, N. Protti, S. Altieri, A. Pietropaolo
Summary: Within the framework of the ENTER_BNCT INFN project, commercially available silicon carbide sensors were made sensitive to thermal neutrons. Two different thermal neutron radiators were used to evaluate the sensors' sensitivity and radiation resistance. The progressive damage of the sensors was observed and modeled using a Monte Carlo code.
EUROPEAN PHYSICAL JOURNAL PLUS
(2022)
Article
Chemistry, Inorganic & Nuclear
Gonzalo F. Garcia-Fernandez, Eduardo Gallego, Jose M. Gomez-Ros, Hector R. Vega-Carrilloc, Karen A. Guzman-Garcia, Lenin E. Cevallos-Robalino, Roberto Garcia-Baonza, Eduardo Fuentes Hernandez
Summary: This study verified the effectiveness of shielding in two compact proton therapy centers using the Monte Carlo code MCNP6. The results showed that the ambient dose equivalent, H*(10), was below the legal limit of 1 mSv/year, which is considered for the public in international references. Additionally, the dose outside shielding was evaluated in terms of the new area surveillance quantity, H*, proposed in the recent ICRU Report 95.
APPLIED RADIATION AND ISOTOPES
(2023)
Article
Physics, Multidisciplinary
R. Bedogni, A. Calamida, T. Napolitano, C. Cantone, A. M. Fontanilla, A. I. Castro Campoy, G. Abbatini, A. Pietropaolo, V. Monti, E. M. Mafucci, M. Bunce, D. Thomas, J. -m. Gomez-Ros, S. Altieri
Summary: A directional neutron spectrometer, NCT-WES, was developed for quality assurance of therapeutic neutron beam in Neutron Capture Therapy (NCT). NCT-WES operates as a parallelized Bonner spheres spectrometer, incorporating six semiconductor-based thermal neutron detectors in a collimated cylindrical moderator. The simulation model used to derive its response matrix was validated through irradiations in reference monoenergetic fields, and the experiment results confirmed the correctness of the NCT-WES simulation model, within an overall uncertainty lower than +/- 2%.
EUROPEAN PHYSICAL JOURNAL PLUS
(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)
