Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment
Papers 10,000
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Abstract null null The SuperKEKB was designed and constructed as the upgraded accelerator of KEKB. In this accelerator design, the nano-beam scheme of collision was applied and a luminosity of 8 null null × null null 1035 cm−2s−1 was targeted. In the design, the beam final focus system was the key component in the accelerator hardware elements. This final focus system consists of 55 superconducting magnets. In this paper, the designs of the magnets, the cryostats and the cryogenic system are sho...
#1H. Duran Yildiz (Ankara University)H-Index: 161
#2D. Porsuk (Ankara University)H-Index: 3
Last. R. Cakir (Recep Tayyip Erdoğan University)H-Index: 4
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Abstract null null One of the important factors in high radiation generation facilities is the production of a high quality electron beam. To do that, the requirements of an optical electron source, such as current, radiation emission, etc. must be met. For this purpose, cavity beam dynamics studies of 1.4, 1.5, 1.6 and 1.8-cell SRF gun were performed. In addition, detailed studies have been made on the solenoid design and the location of the solenoid along the beam path. A design with the most ...
Abstract null null In this paper, the analysis of radiation detector noise is carried out based on digital signal processing in the discrete time domain. To generate accurate noise models, detector noise sources are analyzed and modeled in the discrete region. Poisson noise generator was used for shot noise, and White Gaussian Noise Generator was used for Johnson Noise and Channel Thermal Noise. For flicker noise, White Gaussian Noise Generator with 1/ null null null null null null null f null n...
#1Y. Tao (THU: Tsinghua University)H-Index: 2
#2C. Beaufort (Grenoble Institute of Technology)H-Index: 1
Last. Jose Busto (AMU: Aix-Marseille University)H-Index: 27
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Abstract Directional Dark Matter Detection (DDMD) can open a new signature for Weakly Massive Interacting Particles (WIMPs) Dark Matter. The directional signature provides in addition, an unique way to overcome the neutron and neutrino backgrounds. In order to get the directional signature, the DDM detectors should be sensitive to low nuclear energy recoils in the keV range and have an angular resolution better than 20 ° . We have performed experiments with low energy ( 30 keV ) ion beam facilit...
Abstract null null Optical inspection of 1191 silicon micro-strip sensors was performed using a custom made optical inspection setup, employing a machine-learning based approach for the defect analysis and subsequent quality assurance. Furthermore, metrological control of the sensor’s surface was performed. In this manuscript, we present the analysis of various sensor surface defects. Among these are implant breaks, p-stop breaks, aluminium strip opens, aluminium strip shorts, surface scratches,...
#1Jiaxing Wen (THU: Tsinghua University)H-Index: 2
#2Xutao Zheng (THU: Tsinghua University)H-Index: 2
Last. Zongqing ZhaoH-Index: 11
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Abstract null null The hybrid pixel detector Timepix3 allows the measurement of the time and energy deposition of an event simultaneously in each 55 null null null μ null null null m pixel, which makes Timepix3 a promising approach for a compact Compton camera. However, the angular resolution of Compton camera based on this kind of detector with high pixel density is usually degraded in imaging of MeV gamma-ray sources, because the diffusion of energetic Compton electron or photoelectron could t...
#1Xiaojuan Wei (CAS: Chinese Academy of Sciences)
#2Min Li (CAS: Chinese Academy of Sciences)H-Index: 3
Last. Yongchun Feng (CAS: Chinese Academy of Sciences)H-Index: 3
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Abstract null null The beam position monitor (BPM) system is a key element of the orbit correction system of a heavy-ion synchrotron. The bunch-by-bunch beam position calculation algorithm is one of the important parts of the BPM system, which determines the processing speed, accuracy and resolution of the beam position measurement. In this paper, a total least squares (TLS) algorithm based on an Exponentially Weighted Moving Average (EWMA) filter called EWMA TLS method is proposed, which applie...
#1Irene Zoi (UHH: University of Hamburg)H-Index: 2
#2Aliakbar Ebrahimi (UHH: University of Hamburg)H-Index: 36
Last. G. Steinbrück (UHH: University of Hamburg)H-Index: 171
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Abstract null null Pixelated silicon detectors are state-of-the-art technology to achieve precise tracking and vertexing at collider experiments, designed to accurately measure the hit position of incoming particles in high rate and radiation environments. The detector requirements become extremely demanding for operation at the High-Luminosity LHC, where up to 200 interactions will overlap in the same bunch crossing on top of the process of interest. Additionally, fluences up to 2.3 null null n...
#1Shuang Zhou (USTC: University of Science and Technology of China)H-Index: 1
#2Feng Li (USTC: University of Science and Technology of China)H-Index: 17
Last. Ge Jin (USTC: University of Science and Technology of China)H-Index: 7
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Abstract null null This paper presents a readout electronics system for the STAR sTGC detector, which will be used in the STAR forward tracking system. In the STAR forward upgrade, the sTGC detector is a key subsystem to improve the forward rapidity (2.5 null null null η null null null null null null μ null null m) and a high tracking efficiency (> 95%). To measure the signals of all channels, we developed the STAR sTGC Readout Electronics System (STAR TRES). It consists of 96 front-end electron...
#1S.B. Bimurzaev (Almaty University of Power Engineering and Telecommunications)
#2E.M. Yakushev (Almaty University of Power Engineering and Telecommunications)
Abstract null null Using the central particle method, within the framework of a unified mathematical formalism, the equations of trajectories of charged particles in electrostatic electron mirrors and lenses, including cathode lenses, are obtained, taking into account relativistic effects, with an accuracy of the third order of smallness inclusive. On the basis of the obtained equations, the conditions for the spatial focusing of beams of charged particles in such systems and their coefficients ...
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