Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment
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#1C. Amsler (OAW: Austrian Academy of Sciences)H-Index: 49
#2M. Antonello (University of Insubria)H-Index: 8
Last. Daniel Comparat (University of Paris-Saclay)H-Index: 32
view all 58 authors...
Abstract null null We present the commissioning of the Fast Annihilation Cryogenic Tracker detector (FACT), installed around the antihydrogen production trap inside the 1 T superconducting magnet of the null null null AEgIS null null null experiment. FACT is designed to detect pions originating from the annihilation of antiprotons. Its 794 scintillating fibers operate at null null null null 4 null null null K null null null null and are read out by silicon photomultipliers (MPPCs) at near room t...
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#1Weiping Ren (CCNU: Central China Normal University)H-Index: 2
#2Wei Zhou (CAS: Chinese Academy of Sciences)H-Index: 84
Last. Xianqin Li (CAS: Chinese Academy of Sciences)H-Index: 4
view all 25 authors...
Abstract null null The Topmetal-M is a large area pixel sensor (18 mm null null null × null null null 23 mm) prototype fabricated in a new 130 nm high-resistivity CMOS process in 2019. It contains 400 rows null null null × null null null 512 columns square pixels with the pitch of null null null null 40 null null null μ null m null null null . In Topmetal-M, a novel charge collection method combining the Monolithic Active Pixel Sensor (MAPS) and the Topmetal sensor has been proposed for the firs...
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#1N. Mauritzson (Lund University)H-Index: 3
#2Kevin Fissum (Lund University)H-Index: 25
Last. E. Rofors (Lund University)H-Index: 4
view all 11 authors...
Abstract null null A light-yield calibration of an NE 213A organic liquid scintillator detector has been performed using both monoenergetic and polyenergetic gamma-ray sources. Scintillation light was detected in a photomultiplier tube, and the corresponding pulses were subjected to waveform digitization on an event-by-event basis. The resulting Compton edges have been analyzed using a G EANT 4 simulation of the detector which models both the interactions of the ionizing radiation as well as the...
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#1Qi Zhao (USTC: University of Science and Technology of China)H-Index: 34
#2Run Ye (USTC: University of Science and Technology of China)H-Index: 3
Last. Bangjiao Ye (USTC: University of Science and Technology of China)H-Index: 22
view all 7 authors...
Abstract null null Positron annihilation lifetime (PAL) spectroscopy is widely used in the characterization of material microstructures. It has a very high sensitivity to the material defects. This paper describes how we developed a digital PAL spectrometer with two barium fluoride (Ba null null null null F null null null 2 null null null null ) detectors and reading the data with a fast digital oscilloscope. We achieved better time performance for the digital PAL spectrometer using a multi-para...
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#1Ren Ling (SEU: Southeast University)H-Index: 3
#2Xingchao Wang (SEU: Southeast University)H-Index: 3
Last. Qilong Wang (SEU: Southeast University)
view all 12 authors...
Abstract null null Since microchannel plate (MCP) photomultiplier tubes are used mainly to detect weak signals, their utility is greatly affected by their noise. This is true, for example, for the 20-inch MCP photomultiplier tubes used in high-energy physics research. We have built an MCP luminescence test system by coincidence testing method, and have analyzed the sources of such MCP luminescence by contrast test. We find that this MCP luminescence is due to electron multiplication in the photo...
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#1Chaoyang Li (CWNU: China West Normal University)H-Index: 1
#2Wenxi Peng (CAS: Chinese Academy of Sciences)H-Index: 14
Last. Xiaofei Lan (CWNU: China West Normal University)
view all 27 authors...
Abstract null null Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor (GECAM) is a pair of small satellites designed to monitor the Gamma-Ray Bursts (GRBs), some of them are possibly associated with Gravitational Wave Events (GWE). Each satellite includes twenty-five Gamma-Ray Detectors (GRDs) and eight Charged Particle Detectors (CPDs). GRDs are used to detect X-rays and gamma-rays to realize the observation and location of significant events such as GRBs or other X-ray ...
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#1S.B. Bimurzaev (AIPET: Almaty University of Power Engineering and Telecommunications)
#2E.M. Yakushev (AIPET: 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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#1Bin LiuH-Index: 2
#2Huanwen LvH-Index: 1
view all 10 authors...
Abstract null null High spatial resolution is of great significance for the null null null γ null null -ray imaging technique, whose performance is mainly limited by the spatial resolution of position sensitive detectors (PSDs). In this work, the compressive coded aperture is introduced in null null null γ null null -ray imaging as the basic pattern, and enlarged with the “mosaic” method to increase the Fully Coded Field of View (FCFV) of the PSDs. In order to demonstrate the performance of the ...
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#1Alexander Book (TUM: Technical University of Munich)H-Index: 2
#2Sina Mayr (TUM: Technical University of Munich)H-Index: 4
Last. Wolfgang Kreuzpaintner (TUM: Technical University of Munich)H-Index: 9
view all 5 authors...
Abstract null null The reconstruction of the complex reflection coefficient obtained by in situ Polarized Neutron Reflectometry is presented. Using the reference layer method, with a magnetic Fe layer, the phase information of the underlying Cu(001) seed layer sample structure is successfully retrieved and its scattering length density is calculated and compared with results obtained from traditional fitting. Two different reference layer approaches for retrieving the phase information are compa...
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#1Marek Sommer (AVČR: Czech Academy of Sciences)H-Index: 2
#2Carlos GranjaH-Index: 12
Last. O. Ploc (AVČR: Czech Academy of Sciences)H-Index: 4
view all 4 authors...
Abstract null null The spectral response of the pixel detector Timepix at the high per-pixel proportional range is examined and calibrated using a simple technique and alpha particles from a standard laboratory source in air. For the detector used, a Timepix ASIC chip equipped with a 300 null null null μ null null null m thick silicon sensor, the spectral range is newly extended up to about 1750 keV per-pixel. This expands and covers the region above 850 keV per pixel which is described and cove...
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