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
Astronomy & Astrophysics
Igor Andreoni, Michael W. Coughlin, Alexander W. Criswell, Mattia Bulla, Andrew Toivonen, Leo P. Singer, Antonella Palmese, E. Burns, Suvi Gezari, Mansi M. Kasliwal, R. Weizmann Kiendrebeogo, Ashish Mahabal, Takashi J. Moriya, Armin Rest, Dan Scolnic, Robert A. Simcoe, Jamie Soon, Robert Stein, Tony Travouillon
Summary: Binary neutron star mergers and neutron star-black hole mergers can be detected through gravitational waves and electromagnetic radiation. Discovering kilonovae will provide valuable insights into element nucleosynthesis and nuclear matter. The unique features of the Nancy Grace Roman Space Telescope allow for the detection of gravitational wave counterparts missed by optical telescopes.
ASTROPARTICLE PHYSICS
(2024)
Article
Astronomy & Astrophysics
L. R. Colaco, R. F. L. Holanda, Rafael C. Nunes, J. E. Gonzalez
Summary: Motivated by future gravitational wave observations, this study performs forecast analysis to constrain a possible time variation of the fine structure constant a. By considering mock data from standard sirens and current observations of strong gravitational lensing systems, it is found that future standard sirens observations can also play a significant role in the search for variations of a.
ASTROPARTICLE PHYSICS
(2024)
Article
Astronomy & Astrophysics
Cornelia Arcaro, Michele Doro, Julian Sitarek, Dominik Baack
Summary: In this report, the performance of replacing PMTs with SiPMs in a 3rd generation IACT array (using MAGIC as an example) is investigated using generalized simulations. It is found that the use of SiPMs can improve sensitivity by a factor of three at the current trigger threshold energy, and the stronger sensitivity of SiPMs in the red part of the spectrum does not affect the performance of IACTs, which is a source of background.
ASTROPARTICLE PHYSICS
(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
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
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
Catherine Burcklen, Cara Vennari, Christopher Mcguire, Jennifer Alameda, Jeff Robinson, Andrew Aquila, Matthew Seaberg, Klaus Sokolowski-Tinten, Thies J. Albert, Stefan P. Hau-Riege, Bernard Kozioziemski
Summary: In this work, the X-ray Tomographic dElay Line (XTEL) is introduced as an optical system for studying dynamics of mesoscale materials processes with X-ray light sources. The XTEL was tested on the MFX instrument and showed stable performance over multiple days. Additionally, a conceptual design for an XTEL-like optic with delays in the picosecond range is presented.
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
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)
Article
Instruments & Instrumentation
Vishal Kumar, Subhendu Das, Promita Roy, Purba Bhattacharya, Supratik Mukhopadhyay, Nayana Majumdar, Sandip Sarkar
Summary: The present study assesses the position resolution of Gas Electron Multiplier (GEM) detectors using a novel method. The results demonstrate that the double GEM can accurately determine positions in both x and y directions. Other standard characterizations were also evaluated and found consistent with existing literature.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
J. Maslin, J. Henderson, M. P. Taggart
Summary: This study demonstrates the potential impact of simultaneous measurement of neutrons and gamma rays with good resolution using a phosphor-sandwich style detector. By employing pulse-shape discrimination, the researchers were able to distinguish between thermal neutron capture on gadolinium and gamma ray detection in cerium-bromide. The study also highlights the importance of detector geometry in reducing low-energy background.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
Zhijun Wu, Chaoqun Hu, Pengfei Leng, Wenbo Zhao, Jun Deng, Ke Li, Liguang Li
Summary: The geometry of the nozzle has a significant impact on the internal flow and cavitation. The inlet included angle affects the hydraulic flip width and the symmetry of cavitation distribution.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
Sherry Rosily, Hitesh Kewlani, Jose Mathew, Renju Thomas, Biswaranjan Dikshit, Srinivas Krishnagopal
Summary: This paper describes a non-invasive method for measuring the beam profile of high-intensity proton beams. By generating nitrogen gas sheets, which produce fluorescence when a charged particle beam passes through them, the intensity distribution of the beam can be visualized. The method has been validated using low energy proton beams in experiments and studied using simulations to explore optical transport and reconstruction methods.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
Y. Hirayama, M. Mukai, P. Schury, Y. X. Watanabe, S. Iimura, H. Ishiyama, S. C. Jeong, H. Miyatake, T. Niwase, M. Rosenbusch, A. Takamine, A. Taniguchi, M. Wada
Summary: We developed RF wire carpets and installed them in a cryogenic helium gas cell to increase the extraction yields of target-like fragments produced in multi-nucleon transfer reactions. Experimental results confirmed that using RF wire carpets in the cryogenic He gas cell significantly improved the extraction yields compared to the typical argon gas cell system.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
K. Raghavan, M. L. Avila, P. Balaprakash, H. Jayatissa, D. Santiago-Gonzalez
Summary: This study presents a method for automatically classifying events from specific a-induced reactions by combining statistical and machine learning methods. Compared to traditional techniques, this method requires less input from domain scientists and produces similar results in two experimental data sets.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
N. Benaskeur, M. Hachouf, F. Kharfi, O. Dendene, H. Benkharfia
Summary: The effect of polychromatic nature of thermal neutrons on neutron radiography was investigated through experiments and simulations. An analytical procedure was established for beam hardening correction, and the corrected data values agreed well with the theoretical calculations, indicating the effectiveness of the correction method.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
Swati Thakur, Soni Devi, Sanjeet S. Kaintura, Katyayni Tiwari, Pushpendra P. Singh
Summary: This study presents the development of a low background measurement setup using HPGe detectors for measuring low-level radioactivity. The detector's performance was tested and modeled, and the results were compared with experimental data. The setup can be used to measure radioactive contamination in the environment.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
Tianyu Yuan, Lan Zhang, Lu Hua, Huiquan Li, Yuchuan Zhong, Bin Liao, Chengbo Li, Tianxi Sun, Xuepeng Sun
Summary: X-ray fluorescence (XRF) is a crucial technique for determining the thickness of thin films or coating materials. A laboratory micro-X-ray fluorescence (Micro-XRF) thickness measurement device has been developed based on an inner-wall coated elliptical monocapillary X-ray lens (EMXRL). The device has smaller X-ray spot size and higher intensity gain, resulting in higher detection efficiency for thickness measurement.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Physics, Particles & Fields
Brett McInnes
Summary: The time-dependence of AdS black hole interior geometries poses challenges to holographic duality and the traversability of wormholes. Quantum circuit complexity of strongly coupled matter can address the first challenge. Data from a phenomenological model show an upper bound on the complexity growth rate, which becomes stricter with the addition of angular momentum. The slowing of black hole interior dynamics at high specific angular momentum also occurs.
