Article
Chemistry, Analytical
Filippo Mele, Jacopo Quercia, Leonardo Abbene, Giacomo Benassi, Manuele Bettelli, Antonino Buttacavoli, Fabio Principato, Andrea Zappettini, Giuseppe Bertuccio
Summary: Radiation detectors based on CZT compounds are gaining popularity due to their high detection efficiency, room temperature operation, and reliability. However, their full potential has not been fully exploited, especially at low energies, because of a lack of dedicated front-end electronics. In this study, the latest results achieved in terms of energy resolution using SIRIO and a linear-array pixel detector were presented.
Article
Medicine, General & Internal
Maria Normand Hansen, Christian Haarmark, Bent Kristensen, Bo Zerahn
Summary: The study aimed to test the feasibility of individualized dosing during ERNA using CZT SPECT, while maintaining data analysis efficiency. The algorithm for individualized dosing resulted in reduced doses and decreased need for consistency in LVEF determination.
Letter
Optics
Yoshiki O-Oka, Ryota Keyaki, Shunsuke Fujisawa, Susumu Fukatsu
Summary: Ghost imaging (GI) is a nonlocal image retrieval method based on the cross correlation of photons. Temporal single-pixel imaging of a non-integrating class is reported as a viable variant of GI, eliminating the need for constant vigilance. By dividing the distorted waveforms and correcting them using the known impulse response function of the detector, corrected waveforms become readily available. This allows the use of slow and less expensive optoelectronic devices like LEDs and solar cells for one-time readout imaging.
Article
Instruments & Instrumentation
P. Skrzypiec, R. Szczygiel
Summary: Hybrid single-photon counting pixel detectors have been widely used for X-ray and ionizing particle detection. A readout chip integrating a RISC-V-based microprocessor SoC significantly improved the functionality of the detector. The communication between the CPU and the pixel matrix was facilitated by a dedicated Pixel Matrix Controller.
JOURNAL OF INSTRUMENTATION
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Sharmila Dorbala, Mi-Ae Park, Sarah Cuddy, Vasvi Singh, Kyle Sullivan, Sirwoo Kim, Rodney H. Falk, Viviany R. Taqueti, Hicham Skali, Ron Blankstein, Camden Bay, Marie F. Kijewski, Marcelo F. Di Carli
Summary: Absolute quantitation of Tc-99m-pyrophosphate provides accurate assessment and diagnosis of cardiac amyloidosis. The quantitative metrics show moderate positive correlations with LVMI (left ventricular mass index) and strong positive correlations with ECV (extracellular volume). Excellent intraobserver repeatability of the quantitative metrics was observed.
JOURNAL OF NUCLEAR MEDICINE
(2021)
Article
Instruments & Instrumentation
P. Grybos, R. Kleczek, P. Kmon, A. Krzyzanowska, P. Otfinowski, R. Szczygiel, M. Zoladz
Summary: This paper introduces a readout integrated circuit (IC) with a pixel architecture for CdTe pixel detectors used in X-ray imaging applications. The IC consists of a matrix of 96 x 192 square-shaped pixels, each containing a fast analog front-end, four independently working discriminators, and four 12-bit ripple counters. This pixel architecture enables the processing of photons individually and the selection of X-ray photons based on their energy. The IC has 8 different gain settings and is capable of processing X-ray photons with energies up to 154 keV. A multithreshold pattern recognition algorithm is implemented in the IC to deal with the charge sharing effect from a thick semiconductor pixel sensor.
JOURNAL OF INSTRUMENTATION
(2022)
Article
Radiology, Nuclear Medicine & Medical Imaging
Yoonsuk Huh, Jaewon Yang, Odera U. Dim, Yonggang Cui, Weijie Tao, Qiu Huang, Grant T. Gullberg, Youngho Seo
Summary: The study proposed a full-ring SPECT system design with eight large-area CZT detectors for a broad spectrum of SPECT radiopharmaceuticals and compared its performance to conventional NaI(Tl) two-head Anger cameras. The new system showed overall performance improvements in volume sensitivity, spatial resolution, and contrast-to-noise ratio over traditional SPECT scanners, demonstrating the potential for reduced acquisition time and improved sensitivity in imaging.
Article
Radiology, Nuclear Medicine & Medical Imaging
Yuliya Piatkova, Pierre Payoux, Caroline Boursier, Manon Bordonne, Veronique Roch, Pierre-Yves Marie, Gabriela Hossu, Laetitia Imbert, Antoine Verger
Summary: This study compared I-123-FP-CIT SPECT imaging obtained from a 360 degrees CZT camera with different focus configurations to that from a conventional Anger camera. The results showed that the 360 degrees CZT camera provided higher image quality, shorter acquisition times, and fewer discordant cases compared to the conventional camera, possibly due to its higher spatial resolution.
CLINICAL NUCLEAR MEDICINE
(2022)
Article
Materials Science, Multidisciplinary
Zhe Huang, Siyuan Wu, Baishan Chen, Siwei Tang, Yunzhu Ma, Wensheng Liu
Summary: In this paper, one-step heat treatment was used to eliminate defects in the CZT single crystal, and it was found that the treatment can eliminate some large-size Te inclusions while nano Te precipitates still exist. Additionally, the crystal surface becomes rougher after annealing. The heat treatment also improves the optical and electrical properties of the crystal.
Article
Chemistry, Analytical
Antonino Buttacavoli, Fabio Principato, Gaetano Gerardi, Donato Cascio, Giuseppe Raso, Manuele Bettelli, Andrea Zappettini, Paul Seller, Matthew C. Veale, Leonardo Abbene
Summary: The success of cadmium zinc telluride (CZT) detectors in room-temperature spectroscopic X-ray imaging is widely accepted. Different types of CZT materials with enhanced properties have been developed for various applications.
Article
Radiology, Nuclear Medicine & Medical Imaging
Zhonghua Kuang, Ziru Sang, Ning Ren, Xiaohui Wang, Tianyi Zeng, San Wu, Ming Niu, Longhan Cong, Samuel M. Kinyanjui, Qiaoyan Chen, Changjun Tie, Zheng Liu, Tao Sun, Zhanli Hu, Junwei Du, Ye Li, Dong Liang, Xin Liu, Hairong Zheng, Yongfeng Yang
Summary: The study developed an MR-compatible brain PET scanner with high spatial resolution and sensitivity, which can be used for standalone brain PET scanning or inserted into a commercial whole-body MRI scanner for simultaneous PET/MRI imaging.
EUROPEAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING
(2023)
Article
Optics
Ranjan Das, Yanran Xie, Henry Frankis, Keru Chen, Hermann Rufenacht, Guillaume Lamontagne, Jonathan D. B. Bradley, Andrew P. Knights
Summary: This study reports a novel gain-enabled delay readout system using a tunable optical carrier, low-frequency RF signal, and CMOS-compatible photodetectors suitable for silicon photonic integration. The characterization method relies on direct phase measurement of an input RF signal and extraction of the delay profile under distinct ring-bus coupling formats of a true-time delay unit.
PHOTONICS RESEARCH
(2022)
Article
Instruments & Instrumentation
A. Krzyzanowska
Summary: Hybrid pixel radiation detectors working in a single-photon counting mode have gained attention for their noiseless imaging and high dynamic range, but performance is limited by charge sharing. Quantification of charge sharing influence through parameterization of the s-curve is crucial for understanding detector performance.
JOURNAL OF INSTRUMENTATION
(2021)
Article
Engineering, Electrical & Electronic
Guillaume Amoyal, Yves Menesguen, Vincent Schoepff, Frederick Carrel, Maugan Michel, Jean-Claude Angelique, Nicolas Blanc de Lanaute
Summary: This article presents the energy calibration of two Timepix3 chips with different sensors and evaluates their performance. The energy resolution for Si sensor was found to be better than CdTe sensor. The spectral performance of CdTe bump-bonded Timepix3 was evaluated for gamma rays above 1MeV for the first time, showing effective results.
IEEE TRANSACTIONS ON NUCLEAR SCIENCE
(2021)
Article
Instruments & Instrumentation
T. Fritzsch, F. Huegging, P. Mackowiak, K. Zoschke, M. Rothermund, N. Owtscharenko, D-L Pohl, H. Oppermann, N. Wermes
Summary: This paper presents a 3D prototype of ATLAS FE-I4 readout chip using through silicon via (TSV) technology, and successfully tests and operates the ATLAS FE-I4 readout chips with through silicon vias. Furthermore, hybrid pixel detector modules using flip chip bonded ATLAS FE-I4 TSV readout chips and planar sensor chips are implemented.
JOURNAL OF INSTRUMENTATION
(2022)
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)