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Design and fabrication of low background, high energy resolution thermal bonding Micromegas detectors for the PandaX-III experiment Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-03-04 Sicheng Wen, Zhiyong Zhang, Yunzhi Peng, Ke Han, Shaobo Wang, Changqing Feng, Shubin Liu, Jianbei Liu, Ming Shao, Yi Zhou
The high-pressure xenon time projection chamber (TPC) utilizing micro-pattern gaseous detector readout has emerged as a highly promising technical solution for the search of neutrino-less double beta decay events. This approach offers exceptional features, including high energy resolution, fine granularity, low background radioactivity, and scalability for large-scale experiments. In line with these
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PyPWA: A software toolkit for parameter optimization and amplitude analysis Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-03-04 Mark Jones, Peter Hurck, William Phelps, Carlos W. Salgado
PyPWA is a toolkit designed to optimize parametric models describing data and generate simulated distributions according to a model. Its software has been written within the python ecosystem with the goal of performing Amplitude or Partial Wave Analysis (PWA) in nuclear and particle physics experiments. We briefly describe the general features of amplitude analysis and we provide a description of the
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Position sensitive device technologies for particle physics Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-03-03 Petra Merkel
I will give a brief overview of the use of position sensitive devices for particle physics. I will focus on silicon-based systems only. In addition to the depiction of a suite of recently designed, built, and operated detectors I will also introduce planned near term additions. I will conclude with a brief outlook regarding challenges for silicon detector applications for future colliders.
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The readout panels for the BI-RPC project for ATLAS Phase-II upgrade Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-03-01 M. Arcuri, G. Falsetti, M. Schioppa, P. Turco, Yongjie Sun, Dongshuo Du, Quanyin Li, Xiangyu Xie
To take full advantage from the LHC upgrade to high luminosity in 2029, the ATLAS community has approved an intensive detector upgrade program that includes the construction of an additional trigger layer positioned close to the BI MDT chambers of the muon spectrometer. These chambers are RPC with thin gas gap, thin High Pressure Laminate electrodes coated with graphite on one side, and only use strips
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First demonstration of a single-end readout position-sensitive optical fiber radiation sensor inside the Fukushima Daiichi Nuclear Power Station based on wavelength-resolving analysis Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-03-01 Yuta Terasaka, Yuki Sato, Akira Uritani
We have developed a new position-sensitive optical fiber radiation sensor that achieves single-end readout and high dose rate application. The sensor determines the incident position of radiation on the optical fiber by using the wavelength dependence of light attenuation within the fiber. Through analysis of the wavelength spectrum output from the fiber end, the incident position of radiation on the
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Ion emission from the plasma formed in the ferroelectric active source Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-29 A.V. Stepanov, F.V. Konusov, S.K. Pavlov, V.A. Tarbokov, M.A. Serebrennikov
The experimental studies of active plasma source are presented. The plasma was formed by an incomplete discharge on the surface of ferroelectric BaTiO samples. The spectrum of the discharge was received using the optical emission spectroscopy method. The spectrum lines corresponded to the atoms and ions of elements related to the ferroelectric (Ba, Ti, O) and residual gas (N). The intensity of the
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Development of a practical tritiated water monitor to supervise the discharge of treated water from Fukushima Daiichi Nuclear Power Plant Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-29 Yukihisa Sanada, Keisuke Oshikiri, Marina Kanno, Tomohisa Abe
As part of the Fukushima Daiichi Nuclear Power Plant (FDNPP) decommissioning, the release of stored treated water began in 2023. We developed a practical tritium monitor to continuously supervise the tritiated water concentration at FDNPP. The monitor contains a flow cell detector comprising plastic scintillator pellets and incorporating simultaneous measurements by three detectors, a veto detector
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Study on the effect of operating conditions on SiPM-based digital γ/n pulse shape discrimination Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-29 Kilyoung Ko, Changyeop Lee, Wonku Kim, Sangho Lee, Wooseub Kim, Gyohyeok Song, Jisung Hwang, Jaehyun Park, Yongsun Yi, Gyuseong Cho
This study conducted an initial experimental investigation to compare the performance of the charge comparison (CC) and constant fraction time-over-threshold (CF-TOT) methods under various operating conditions. In this study, the influence of overvoltage exhibited tendencies according to the method used, though generally, a high overvoltage did not guarantee superior performance in pulse shape discrimination
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An intense source of very cold neutrons using solid deuterium and nanodiamonds for the European Spallation Source Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-28 Nicola Rizzi, Ben Folsom, Mina Akhyani, Mads Bertelsen, Peter Böni, Yannick Beßler, Tomasz Bryś, Amalia Chambon, Valentin Czamler, Bent Lauritzen, Jose Ignacio Márquez Damián, Valery Nesvizhevsky, Blahoslav Rataj, Stavros Samothrakitis, Valentina Santoro, Ha Shuai, Markus Strobl, Mathias Strothmann, Alan Takibayev, Richard Wagner, Luca Zanini, Oliver Zimmer
The European Spallation Source (ESS), currently under construction, is based on a high-brightness, bi-spectral, low-dimensional moderator placed above a spallation target, intended to initially serve fifteen neutron scattering instruments. Within the upgrade path of ESS, the HighNESS project aims at designing a source complementary to this upper moderator, focusing on delivering a higher intensity
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Enhancing stability of microchannel plates (MCPs) through freeze-drying method Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-28 Fangjian Qiao, Xindi Ma, Xiangbiao Qiu, Yunsheng Qian
The crystallization and gain decrease of microchannel plates (MCPs) have a significant impact on the dark noise and working life of optoelectronic devices. By employing a freeze-drying method instead of high-temperature drying during MCP manufacturing, stability can be improved. Freeze-drying at low temperatures (−100 °C) mitigates chemical reactions between potassium (K) and oxygen (O) or water (HO)
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Response of silicon solar cells to neutrons in post-detonation monitoring Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-28 Praneeth Kandlakunta, Matthew Van Zile, Susan White, Lei Raymond Cao
In this study, we evaluated the feasibility of using solar photovoltaic (PV) panels for the detection of prompt neutrons from a nuclear denotation. Monte Carlo (MC) simulations were performed to evaluate the response of silicon (Si) solar cells (SCs) to neutrons and support the experiments. The response of Si SCs to fission spectrum neutrons was measured experimentally using the fast neutron beam of
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Optical simulation of the non-uniformity for the LYSO crystal of the HERD calorimeter Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-28 Penghui Wang, Xin Liu, Zhigang Wang, Ning Huang, Xingquan Liu, Weiping Lin, Ruijie Wang, Yongwei Dong, Sen Qian, Jifeng Han
The High Energy Cosmic Radiation Detection (HERD) facility will be installed on the China space station, and the critical sub-detector is the homogeneous, isotropic, and finely segmented 3D calorimeter (CALO), composed of 7500 LYSO cubes. In this paper, GEANT4 was used to simulate the optical photon propagation inside a single LYSO crystal including the Wavelength Shifting Fiber (WLSF) and photodiode
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Remote measurement and calibration of alpha-emitting radionuclides through the utilization of characteristic ultraviolet fluorescence Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-28 Rui Luo, Jing-Yu Li, Li-Jun Xu, Na-Qing Mao, Yu-He Zhang, Yun-Tao Liu
During the decommissioning of nuclear facilities and spent fuel reprocessing, conventional alpha particle detectors are insufficient for accurately measuring the emissivity of alpha particles due to their high radiation intensity and complex nuclide types. The air fluorescence method is developed to detect the α particle emissivity through measuring the intensity of ultraviolet fluorescence generated
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Production of highly charged metallic ion beams with a room temperature ECR ion source-LECR5 for the CAFE2 facility at IMP Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-28 W. Lu, H.Y. Ma, C. Qian, J.D. Ma, W.H. Zhang, Y.C. Feng, Z.H. Zhang, Z.H. Jia, L.B. Li, X. Fang, P. Zhang, H. Zhang, J.J. Chang, X.Z. Zhang, L.T. Sun, Y. He, H.W. Zhao
A new facility called CAFE2 (Chinese Accelerator Facility for super heavy Elements) has been constructed and put into routine operation at Institute of Modern Physics (IMP) in 2021. To meet the requirement of metallic ions, we assembled a room-temperature ECR ion source-LECR5 (Lanzhou Electron Cyclotron Resonance ion source No.5) as its injector. This paper mainly introduces the results of optimization
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Geant4 development for actinides photofission simulation Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-28 Xiao-Ming Shi, Guan-Lin Wang, Kai-Jun Luo, Xin-Xiang Li, Zhi-Chao Zhu, Wen Luo
Actinides fission induced by energetic photons have a wide range of potential applications, including production of rare isotopes and neutron-rich exotic nuclei, generation of medical radioisotopes, nuclear waste package assay, and nuclear safeguards and inspection. Reliable simulation tool for the actinides photofission is of importance in the study of actinides photofission in and of itself as well
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Monte Carlo simulation of phase-contrast X-ray imaging with a single-grid setup Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-28 Hunwoo Lee, Minjae Lee, Hyosung Cho
Phase-contrast X-ray imaging is widely used to visualize the internal structures of samples that cannot be seen with conventional X-ray imaging. Among various phase-sensitive imaging techniques available—propagation-based, grating-interferometry, edge-illumination, and speckle-based—single-grid-based imaging, a variant of the speckle-based technique, provides benefits like single exposure and a simple
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Development of a high current electron beam facility for compact accelerator neutron source target thermal tests Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-27 J.F. Muraz, D. Santos, V. Ghetta, J. Giraud, O. Guillaudin, P. Sortais, T. Thuillier, J. Marpaud, M. Chala, M. Forlino, M. Hervé
Target thermal capabilities are one of the major key points for CANS (Compact Accelerator-based Neutron Source) developments. Indeed, high energy (few MeV) and high average current (few tens of mA) proton or deuteron beams are required to produce high thermal neutron flux of 10³ n.cm⁻s⁻ or greater. The targets must therefore absorb and dissipate a high thermal power. In order to make progress on their
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The high-performance DIRC for the ePIC detector at the EIC Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-27 G. Kalicy
The next-generation nuclear physics facility in the United States will be the Electron-Ion Collider (EIC), scheduled to be built at Brookhaven National Laboratory (BNL). Excellent particle identification (PID) is one of the key requirements for the EIC central detector called ePIC. Identification of the hadrons in the final state is critical to study how different quark flavors contribute to nucleon
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Evaluating the capability of detecting recoil-electron tracks using an electron-tracking Compton camera with a silicon-on-insulator pixel sensor Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-27 Mika Kagaya, Hideaki Katagiri, Ryo Kato, Naomi Tojo, Takeshi Go Tsuru, Ayaki Takeda, Yasuo Arai, Kenji Shimazoe
Sub-MeV gamma-ray line observations are crucial for the understanding of high-energy astrophysical processes. In this energy range, the presence of a significant amount of background poses a serious challenge. Therefore, it is essential to reduce this background to achieve high-sensitivity observations. An electron-tracking Compton camera can efficiently mitigate the impact of background on scientific
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Anode capacitance measurement of silicon drift detectors in operating conditions Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-27 Giuseppe Bertuccio, Filippo Mele, Jacopo Quercia, Yongbiao Shi
We describe a technique for measuring with high accuracy and precision the capacitance of the anode of a semiconductor drift detector (SDD) fully biased in operating conditions and connected to the front-end electronics. The proposed method does not require the use of a probe station, making it suitable for low-cost and easy-to-setup application environments. We have performed measurements on four
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Improvement of metal artifact reduction in dental CBCT using a CdTe photon-counting detector: Simulation study Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-27 Soohyun Lee, Minjae Lee, Younghwan Lim, Hyosung Cho
In dental cone-beam computed tomography (CBCT), the image quality often degrades when patients have metallic objects such as metal implants and/or metal prostheses. Metal artifacts typically appear as streaks and shadows in the reconstructed CT images, limiting their clinical usefulness. Although various metal artifact reduction (MAR) methods are used in dental CBCT, no algorithm that can robustly
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Time interval distributions of nuclear events in a digital spectrometer Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-27 Soren Cheng, Bruce Pierson, Stefaan Pommé, Marek Flaska
This study compares the theoretical formula for time interval density distributions (TIDs) in counters with pileup rejection to TIDs measured using a digital spectrometer with trapezoid filtering. The TIDs were derived from successive time stamps of Co and Ba γ rays detected with a HPGe spectrometer. The results demonstrate that the theoretical formula is applicable up to 40% count loss and can be
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An 8-channel low power ASIC for Helium-3 tube position sensitive neutron detectors Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-27 Jiayi Ren, Hongbin Liu, Qicai Li, Li Yu, Weigang Yin, Hong Luo, Lixin Zeng, Shaojia Chen, Peixun Shen, Jianrong Zhou, Jian Zhuang, Yubin Zhao, Zhijia Sun
The majority of neutron spectrometers designated for use in the China Spallation Neutron Source (CSNS) rely on position-sensitive detectors that utilize Helium-3 tube detector technology. To minimize the impact of air on neutron scattering experiments, detectors must be located inside a vacuum chamber. For these types of spectrometers, it is also advisable to house the readout electronics within the
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Enrichment measurement by passive γ-ray spectrometry of uranium dioxide fuel pellets using a europium-doped, strontium iodide scintillator Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-23 Andrew J. Parker, Manuel Bandala, Stephen Croft, Laurie Crouch, R. David Dunphy, Daniel Hutchinson, Roy Logsdon, Xiandong Ma, Stephen Marshall, Paul Murray, Ali Sarfraz, Paul Stirzaker, James Taylor, Jaime Zabalza, Malcolm J. Joyce
The performance of a europium-doped strontium iodide scintillator for uranium enrichment measurement of a variety of sintered uranium dioxide fuel pellets is described and compared to that of caesium iodide and sodium iodide. Enrichment has been determined via passive γ-ray spectrometry of the 186 keV line from uranium-235 using gross count, net count, and peak ratio analyses. The 38 mm Ø x 38 mm strontium
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Latest results from the RD42 collaboration on the radiation tolerance of polycrystalline diamond detectors Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-23 M. Mali, M. Artuso, L. Bäni, M. Bartosik, V. Bellini, B. Bentele, P. Bergonzo, A. Bes, J-M. Brom, G. Chiodini, D. Chren, V. Cindro, G. Claus, J. Collot, J. Cumalat, A. Dabrowski, D. Dauvergne, S. Ditalia Tchernij, G. Eigen, V. Eremin, P. Everaere, J. Forneris, L. Gallin-Martel, M-L. Gallin-Martel, K.K. Gan, M. Gastal, A. Gentry, M. Goffe, J. Goldstein, A. Golubev, A. Gorišek, E. Grigoriev, J. Grosse-Knetter
As nuclear and particle physics facilities move to higher intensities, the detectors used there must be more radiation tolerant. Diamond is in use at many facilities due to its inherent radiation tolerance and ease of use. In this article we present our radiation tolerance measurements of the highest quality polycrystalline Chemical Vapor Deposition (pCVD) diamond material for irradiations from a range
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Approaching an optimum time resolution for synchroscan streak-camera measurements with visible synchrotron light Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-23 G. Schiwietz, M. Koopmans, Ch. Kalus, M. Marongiu, A. Schälicke, P. Schnizer, M. Ries
The optical beam diagnostics at the BESSY II light source in Berlin have been improved significantly over the last few years. In particular, the streak-camera system has been extended in precision and sensitivity to allow two-dimensional imaging in time and space for equilibrated and non-equilibrated bunch patterns. In this paper, we prove experimentally and theoretically that we have reached a sub-ps
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Light-yield response of liquid scintillators using 2–6 MeV tagged neutrons Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-23 N. Mauritzson, K.G. Fissum, J.R.M. Annand, H. Perrey, R. Al Jebali, A. Backis, R. Hall-Wilton, K. Kanaki, V. Maulerova-Subert, F. Messi, R.J.W. Frost, E. Rofors, J. Scherzinger
Knowledge of the neutron light-yield response is crucial to the understanding of scintillator-based neutron detectors. In this work, neutrons from 2–6MeV have been used to study the scintillation light-yield response of the liquid scintillators NE 213A, EJ 305, EJ 331 and EJ 321P using event-by-event waveform digitization. Energy calibration was performed using a G4 model to locate the edge positions
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Development of the Beam Conditions Monitoring Prime system for beam abort and luminosity monitoring in ATLAS based on a segmented polycrystalline CVD diamond system and dedicated front-end ASIC Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-23 Miha Mali, Mo’men Abusareya, Ignacio Asensi, Fabio Formenti, Andrej Gorišek, Bojan Hiti, Harris Kagan, Helmut Frais-Kölbl, Boštjan Maček, Marko Mikuž, Alexander Oh, Aleksandra Onufrena, Alice Laura Porter, Bernhard Selhofer, Ismet Siral, Dale Shane Smith, Carlos Solans, Anna Swoboda, Kirsty Veale
The High Luminosity upgrade of Large Hadron Collider (HL-LHC) will increase the LHC luminosity and with it the density of particles on the detector by an order of magnitude. For protecting the inner silicon detectors of the ATLAS experiment and for monitoring the delivered luminosity, a radiation hard beam monitor was developed based on polycrystalline Chemical Vapor Deposition (pCVD) diamond detectors
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Response of the MIMOSIS-1 CMOS Monolithic Active Pixel Sensor to particle beams with different dE/dx Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-23 H. Darwish, A. Altingun, J. Andary, B. Arnoldi-Meadows, J. Baudot, G. Bertolone, A. Besson, R. Bugiel, G. Claus, C. Colledani, M. Deveaux, A. Dorokhov, Z. El Bitar, M. Goffe, A. Himmi, C. Hu-Guo, K. Jaaskelainen, O. Keller, M. Koziel, F. Matejcek, J. Michel, F. Morel, C. Müntz, H. Pham, C.J. Schmidt, M. Specht, J. Stroth, I. Valin, M. Winter
The ultra-thin and highly granular CMOS Monolithic Active Pixel Sensors (MAPS) are typically optimized for high rate high precision tracking, which implies the use of a very thin active medium and digital readout. Both features hamper using the devices for identifying low momentum particles by means of dE/dx. Still, MAPS feature charge sharing and typically clusters of more than one fired pixel per
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The performance of AC-coupled Strip LGAD developed by IHEP Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-23 Weiyi Sun, Mengzhao Li, Zhijun Liang, Mei Zhao, Xiaoxu Zhang, Tianyuan Zhang, Yuan Feng, Shuqi Li, Xinhui Huang, Yunyun Fan, Tianya Wu, Xuan Yang, Bo Liu, Wei Wang, Yuekun Heng, Gaobo Xu, João Guimaraes da Costa
The AC-coupled Strip LGAD (Strip AC-LGAD) is a novel LGAD design that diminishes the density of readout electronics through the use of strip electrodes, enabling the simultaneous measurement of time and spatial information. The Institute of High Energy Physics has designed a long Strip AC-LGAD prototype with a strip electrode length of 5.7 mm and pitches of 150 m, 200 m, and 250 . Spatial and timing
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Measurements of AmBe and PuC spectra using EJ309 and stilbene scintillators Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-23 Miloš Tichý, Marek Zmeškal, Ondřej Huml, Tomáš Bílý, Evžen Losa, Pavel Strachota, Tomáš Czakoj, Tomáš Urban
Two organic scintillators (EJ309 and stilbene) with their different detection chains and elaborate software were used to measure neutron spectra of AmBe and PuC sources. Method of shadow cone ensures minimization of scattered neutron influence. To separate neutrons and γ, a modern method of pulse shape discrimination was employed using fast digitizers. Calibration was performed by γ sources and three
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Simulating the secondary electron avalanche of MCP by Geant4 Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-22 Huaxing Peng, Baojun Yan, Han Miao, Shulin Liu, Binting Zhang
Nowadays, Microchannel Plate (MCP), as a kind of electron multipliers based on the secondary electron emission, is widely used in many high-sensitive experiments, such as neutrino detection, which require the noise to be as low as possible, while the conventional straight-channel MCP will inevitably have ion feedback, resulting in the sequential after-pulses being the major source of noise. Normally
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Editorial Board Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-22
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Design of a high-precision clock distribution and synchronization system Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-22 Jia-Wen Li, Jia-Jun Qin, Dong-Dong Qi, Tao Chen, Shi-Ya Huang, Hong-Zhang Xie, Hao-Qian Xu, Lei Zhao
In large-scale nuclear and particle physics experiments, there is a high demand for high precision clock distribution and synchronization. In this paper, the design and testing of a high precision clock distribution and synchronization system for the CSR External Target Experiment (CEE) is presented. To achieve high synchronization precision, a dedicated high-quality clock distribution network is designed
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Preface Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-22 Sultan Dabagov
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Advanced manufacturing of 3D custom boron-carbide collimators designed for complex environments for neutron scattering Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-20 Fahima Islam, Garrett E. Granroth, Jamie J. Molaison, Desarae Goldsby, Derek Siddel, David C. Anderson, Amelia M. Elliott, Bianca Haberl
Scattered-beam collimation is a very useful method to reduce unwanted backgrounds and to boost the desired sample signal instead. This approach is of particular interest for samples contained within a complex environment that gives rise to much unwanted parasitic scatter. As neutron scattering instrument and techniques advances, small samples are becoming of more and more interest, which necessitates
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Feasibility studies for imaging e+e− annihilation with modular multi-strip detectors Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-19 S. Sharma, L. Povolo, S. Mariazzi, G. Korcyl, K. Kacprzak, D. Kumar, S. Niedźwiecki, J. Baran, E. Beyene, R.S. Brusa, R. Caravita, N. Chug, A. Coussat, C. Curceanu, E. Czerwinski, M. Dadgar, M. Das, K. Dulski, K. Eliyan, A. Gajos, N. Gupta, B.C. Hiesmayr, Ł. Kapłon, T. Kaplanoglu, K. Klimaszewski, P. Konieczka, T. Kozik, M.K. Kozani, W. Krzemień, S. Moyo, W. Mryka, L. Penasa, S. Parzych, E. Perez.
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Design, construction, and performance of the GEM based radial time projection chamber for the BONuS12 experiment with CLAS12 Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-17 I. Albayrak, S. Aune, C. Ayerbe Gayoso, P. Baron, S. Bültmann, G. Charles, M.E. Christy, G. Dodge, N. Dzbenski, R. Dupré, K. Griffioen, M. Hattawy, Y.C. Hung, N. Kalantarians, S. Kuhn, I. Mandjavidze, A. Nadeeshani, M. Ouillon, P. Pandey, D. Payette, M. Pokhrel, J. Poudel, A.S. Tadepalli, M. Vandenbroucke
A new radial time projection chamber based on Gas Electron Multiplier amplification layers was developed for the BONuS12 experiment in Hall B at Jefferson Lab. This device represents a significant evolutionary development over similar devices constructed for previous experiments, including cylindrical amplification layers constructed from single continuous GEM foils with less than 1% dead area. Particular
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On mean free path of X-ray transition radiation generation in radiator Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-16 V.M. Grichine
An algorithm for the space distribution of X-ray transition radiation generated by a relativistic charged particle in regular radiators is discussed in the framework of the simulation toolkit. The model predictions are compared with experimental data.
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Microstructured plastic scintillators for pencil beam profiling in proton-therapy accelerators Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-16 Veronica Leccese, Michele Caldara, Samuele Bisi, Marcello Pagano, Simone Gargiulo, Carlotta Trigila, Arnaud Bertsch, Alessandro Mapelli, Fabrizio Carbone
A novel beam profiler based on microstructured scintillation resin is presented. The detector consists of a bundle of waveguides, featuring an active area of 30 × 30 mm with a fill factor of 50% and a pitch of 400 m. This configuration is obtained by casting a scintillating resin into a microfabricated Polydimethylsiloxane (PDMS) mold. A prototype, coupled to an array of photodiodes and readout electronics
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Calibration of superconducting radio-frequency cavity forward and reflected channels based on stored energy dynamics Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-15 Andrea Bellandi, Julien Branlard, Marco Diomede, Max Herrmann, Sven Pfeiffer, Christian Schmidt
Modern superconducting radio-frequency linear accelerators require the cavity bandwidth and detuning to be within a specified range to maximize the efficiency of the machine. To correctly estimate these states during operation, the measured RF signals should be calibrated. Due to the finite isolation of the waveguide directional couplers, cross-coupling effects in the forward and reflected channels
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A highly segmented neutron polarimeter for A1 Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-15 R. Spreckels, M. Hoek, U. Müller, M. Thiel, P. Achenbach, D. Bosnar, S. Caiazza, M.O. Distler, L. Doria, P. Eckert, A. Esser, H. Fonvieille, J. Geimer, P. Herrmann, S. Kegel, P. Klag, S. Lunkenheimer, M. Makek, D. Markus, H. Merkel, M. Mihovilovič, J. Müller, J. Pochodzalla, J. Rausch, B.S. Schlimme, C. Sfienti, S. Širca
A new neutron polarimeter for measuring the neutron’s electric form factor was designed and constructed to complement the A1 spectrometer setup at the Mainz Microtron (MAMI). The design is based on a previous polarimeter with significant improvements to halve the error of the extracted form factor. A higher granularity of the polarimeter sections and a deeper first section on the one hand, and a faster
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Response of LaBr2.85Cl0.15:Ce, LaBr3:Ce and NaI:Tl crystals to fast and thermal neutrons Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-15 V. Ranga, I. Mazumdar, Annesha Karmakar, G. Anil Kumar
This communication reports the measurement of direct response for fast and thermal neutrons of a newly marketed scintillation crystal LaBrCl:Ce, along with the widely used LaBr:Ce and NaI:Tl crystals. It continues our investigation on the possible utility of LaBrCl:Ce crystal for the detection of high-energy -rays and neutrons. This is the first report of the neutron response of the LaBrCl:Ce crystal
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Diagnostics of charge breeder electron cyclotron resonance ion source plasma with consecutive transients method Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-15 J. Angot, T. Thuillier, O. Tarvainen, H. Koivisto, M. Luntinen, V. Toivanen
The consecutive transients (CT) method is a diagnostics approach combining experimental and computational techniques to probe the plasma parameters of Charge Breeder Electron Cyclotron Resonance Ion Sources (CB-ECRIS). The method is based on short pulse injection of singly charged ions into the charge breeder plasma, and the measurement of the resulting transients of the charge bred multiply charged
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Observation of coherent Cherenkov radiation of electron bunches from a partially dielectric loaded waveguide Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-15 L. Sh Grigoryan, A.P. Potylitsyn, M.V. Shevelev, A.V. Vukolov, P.V. Karataev, S.B. Dabagov, A.S. Vardanyan, A.S. Yeremyan, M.M. Sukiasyan, A.A. Saharian, V.R. Kocharyan, T.R. Muradyan, M.L. Grigoryan, D.E. Baghdasaryan, V. Kh Kotanjyan, A.V. Sargsyan, H.P. Harutyunyan, H.F. Khachatryan, A.R. Mnatsakanyan, A.H. Mkrtchyan
The results of experimental observation of coherent Cherenkov radiation from picosecond electron bunches traveling along the axis of a dielectric loaded cylindrical waveguide are presented. Experiments have been performed at the AREAL linear accelerator at the CANDLE Synchrotron Research Institute. The angular distribution of radiation from 3.7 MeV electron bunches passing through cylindrical quartz
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Decay time measurement for Bi2O3 nanoparticle-loaded plastic scintillator using scintillation pulse-height distribution Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-15 Shunji Kishimoto
Decay time spectra of a scintillator can be measured precisely using synchrotron radiation. In such measurements, one should maintain the constraint that a photodetector detects less than one scintillation photon per excitation event. This is required to ensure the random detection of scintillation light. The scintillation decay times of 20 and 0 wt% BiO nanoparticle-loaded plastic scintillators (Bi-PLSs)
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Coincidence time resolution of 50 ps FWHM using a pair of multi-anode MCP-PMTs with Cherenkov radiator window Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-15 Lingyue Chen, Lishuang Ma, Guorui Huang, Zhehao Hua, Muchun Jin, Zhen Jin, Sen Qian, Ling Ren, Shuguang Si, Jianning Sun, Qi Wu, Xingchao Wang, Yifang Wang, Zhi Wang, Ning Wang, Kai Wu, Haoda Zhang
The use of time-of-flight (TOF) technology in positron emission tomography (PET) is expected to enhance the performance of clinical tasks such as lesion detection and disease staging. One critical requirement for TOF-PET is achieving lower Coincidence Time Resolution (CTR). In this manuscript, we developed a kind of multi-anode micro channel plate photomultiplier tube (MCP-PMT) specifically designed
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Performance improvement of a discrete dynode electron multiplication system through the optimization of secondary electron emitter and the adoption of double-grid dynode structure Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-13 Biye Liu, Jie Li, Song Chen, Jishi Yang, Wenbo Hu, Jinshou Tian, Shengli Wu
The discrete dynode electron multiplication system (DD-EMS) is the core part of commonly used photomultiplier tubes and electron multipliers, and it has a great influence on the signal amplification capability of these devices. In this work, the sputtering time of Mg target during the deposition of the surface MgO layer of the MgO/(MgO–Au)/Au multilayer film as the secondary electron emitter was optimized
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Cryogenic calibration for Hall probes Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-12 Jinya Chen, Jidong Zhang, Qiaogen Zhou
A superconducting undulator (SCU) prototype with a magnet length of is being developed for the SHINE (Shanghai High Repetition Rate XFEL and Extreme Light Facility) project. The period length of the undulator is , the period number is 250, and the pole gap is . A point measurement system with three Hall probes will be used to measure the magnetic fields in the gap. The Hall probes fixed on a sledge
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Simulation study of electron beam optics for a distributed X-ray source toward stationary CT architecture Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-12 Jordan Fox, Hyoung K. Lee, Ayodeji B. Alajo, Ashish Avachat
For computed tomography (CT) imaging to be considered “real time”, one set of tomographic projections are to be acquired in less than 30 ms. Current conventional CT systems are limited to approximately 300 ms because of mechanical and material limitations. To bypass the mechanical limitations of a conventional gantry system, there is an open design challenge to develop a distributed X-ray source that
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Low emittance optics design for CEPC booster Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-11 Dou Wang, Chenghui Yu, Daheng Ji, Yuemei Peng, Yudong Liu, Yuan Zhang, Xiaohao Cui, Wen Kang, Jiyuan Zhai, Meng Li, Cai Meng, Jie Gao, Na Wang, Saike Tian
The CEPC booster has been designed to provide electron and positron beams at different energies for the collider. The latest booster design aligns with the TDR's higher luminosity objectives for four energy modes. The booster's optics have transitioned from FODO in the CDR to TME structure, resulting in a significant reduction in emittance to match the lower emittance of the collider in the TDR. Extensive
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Numerical study of the influence of two-phase flow with different inlet velocities on the angular stability of double crystal monochromator Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-10 Sasa Gao, Hongzhe Zhai, Wenjie Zhang, Yuan Song, Jie Yang, Xuepeng Gong, Qipeng Lu
In order to solve the problem of double crystal monochromator (DCM) vibration caused by the liquid nitrogen (LN) circulation system in Shanghai Synchronous Radiation Facility (SSRF), the flow-induced vibration of single-axis and four-axis flexure hinges DCM is studied using the unidirectional fluid-solid coupling method. This research mainly investigated the influence of the different inlet velocities
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Innovative approaches to neutron beam optimization: A case study of FP14 at LANSCE Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-10 J. Svoboda, D.P. Broughton, M.J. Mocko, A.L. Cooper, A. Couture, B. DiGiovine, S.A. Kuvin, E. Leal-Cidoncha, H.Y. Lee, L. Zavorka
This paper describes an experimental method to acquire high resolution energy- and spatially- resolved neutron beam spots using the time-gated neutron imaging system with Teledyne Pi-MAX4 camera. These experimental data offer a unique opportunity for benchmarking beam spot simulations. High-quality simulations depend significantly on a high-fidelity geometry model, which can be challenging for legacy
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Design, optimization and prototype testing of a double-stack MRPC detector for positron emission tomography (PET) Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-09 S. Noorian-Samarin, S. Saramad, S. Ali Moussavi Zarandi, Y. Lotfi
In this work, the performance of an RPC detector with a 70%Ar-30%CO gas mixture for a PET imaging system is investigated. A detailed GEANT4 simulation was performed to improve the detection efficiency by optimizing the thickness and material of the resistive components, the number of gas gaps and selecting an appropriate design and structure of the MRPC detectors. In previous studies, for the detection
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Simulating gas-filled neutron detector responses with DRiFT Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-09 A.D. Mullen, M.T. Andrews, L.I. Rondini, C.J. Thompson
– Gas-filled neutron detectors have numerous applications across the nuclear engineering and nuclear physics fields. The ability to accurately model and simulate these detectors is important for those applications but is currently limited by the lack of readily-useable detector response software. Recently, the capabilities of DRiFT, a Detector Response Function Toolkit, were expanded to model gas-filled
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Characterization and simulation of radiation effects on active edges n-on-p technology planar pixel sensors Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-09 Djemouai Djamai, Khaoula Aouadj, Slimane Oussalah, Abdenour Lounis, Evangelos-Leonidas Gkougkousis
The ATLAS inner tracker has to be upgraded to meet the requirements for radiation hardness and geometrical acceptance in order to withstand the harsh conditions of High Luminosity LHC (HL-LHC). This requires segmented silicon sensors of increased geometrical efficiency. The active edge technology allows to reduce the inactive area at the border of the sensor. The main objective of this work is to evaluate
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Neutron resonance transmission analysis prototype system for thorium fuel cycle safeguards Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-08 Benjamin S. McDonald, Areg Danagoulian, Andrew J. Gilbert, Ethan A. Klein, Jonathan A. Kulisek, Michael E. Moore, Jill M. Rahon, Mital A. Zalavadia
Emerging thorium-based reactor designs and fuel cycles present challenges to traditional non-destructive assay techniques used in international safeguards. Specifically, assaying the masses of U and U when they are present together in samples with high gamma ray backgrounds is difficult because of similar passive neutron signatures and relatively weak gamma-ray emissions of U. The Pacific Northwest
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Design optimization of the UFSD inter-pad region Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-08 F. Siviero, R. Arcidiacono, G. Borghi, M. Boscardin, N. Cartiglia, M. Costa, G.-F. Dalla Betta, M. Ferrero, F. Ficorella, M. Mandurrino, L. Markovic, L. Pancheri, G. Paternoster, V. Sola, M. Tornago
This paper reports on a measurement campaign to characterize the inter-pad region of Ultra-Fast Silicon Detectors (UFSDs) manufactured by Fondazione Bruno Kessler. The devices under test are either pixel or strip arrays, featuring a large number of different inter-pad layouts; both pre-irradiation and irradiated sensors have been measured. The aim of the study is to link the design parameters of the
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PMST: A custom Python-based Monte Carlo Simulation Tool for research and system development in portable pinhole gamma cameras Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-08 Yangfan Jiang, Sarah L. Bugby, John E. Lees
A custom Python-based Monte Carlo Simulation Tool (PMST) has been developed to assist in the development of portable gamma cameras or the generation of simulated gamma image datasets, e.g. for deep learning. The simulation tool has been validated by comparison between theoretical and experimental results. PMST includes common attenuation interactions such as the photoelectric effect and Compton and
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Design of a compact, radiation tolerant AlGaAs Geiger photodiode Nucl. Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. (IF 1.4) Pub Date : 2024-02-07 Matthew Downing, Erik B. Johnson, Joe Campbell, Adam A. Dadey
The Geiger photodiodes, or single photon avalanche photodiodes, for a radiation tolerant solid-state photomultiplier (SSPM) are being designed using Aluminum Gallium Arsenide (AlGaAs) and are less than 1 μm thick. Studies on the changes in dark current compared to silicon from thermal neutron damage were conducted demonstrating that the design concept is feasible, as the device sensitivity to incident