Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment最新文献

{"title":"Commissioning a time-gated camera for fast neutron beamline spatial-energy characterization at LANSCE-WNR spallation source","authors":"D.P. Broughton,&nbsp;J. Svoboda,&nbsp;S.A. Kuvin,&nbsp;H.Y. Lee,&nbsp;M. Mocko,&nbsp;B. DiGiovine,&nbsp;S.M. Mosby","doi":"10.1016/j.nima.2024.170088","DOIUrl":"10.1016/j.nima.2024.170088","url":null,"abstract":"<div><div>An energy-resolved fast neutron beam imaging diagnostic has been successfully commissioned at the Weapons Neutron Research (WNR) spallation source within the Los Alamos Neutron Science Center (LANSCE) facility. This diagnostic replaces the existing analog phosphor image plates, which integrate across all neutron energies, as well as other particles, with a near-real-time energy-sensitive imaging capability. The system uses a fast plastic scintillator coupled with an intensified CCD camera. Specifically, the Teledyne Pi-MAX4 camera is coupled with either a 4 mm thick Eljen (EJ) 204 or 228 plastic scintillator. These scintillators are most sensitive to the fast neutrons (0.8-800 MeV) directly from the spallation source rather than low energy background radiation. Experimentally, these plastic scintillators were shown to have sufficiently fast decay to differentiate the bright gamma flash from the spallation neutrons. The spatial resolution is dominated by neutron beam divergence, with minimal additional contributions from scatter and light divergence. The system successfully resolved changes in neutron beam characteristics caused by intentional proton steering variations. Additionally, simulations of scintillator light yield as a function of thickness conducted using PHITS (with Scinful-QMD package) found that increasing scintillator thickness from 4 mm to 6 or 8 mm could potentially increase brightness <span><math><mrow><mo>∼</mo><mn>3</mn><mo>×</mo></mrow></math></span>. This may be explored if there is a need to reduce image acquisition time from several minutes to under one minute.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1071 ","pages":"Article 170088"},"PeriodicalIF":1.5,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142721396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Installation and commissioning of the Electromagnetic Calorimeter in the HADES experiment","authors":"A. Opíchal ,&nbsp;P. Kohout ,&nbsp;A. Kohoutová ,&nbsp;J. Kollarczyk ,&nbsp;L. Krupa ,&nbsp;A. Kugler ,&nbsp;T. Galatyuk ,&nbsp;M. Grunwald ,&nbsp;A. Rost ,&nbsp;P. Tlustý","doi":"10.1016/j.nima.2024.170089","DOIUrl":"10.1016/j.nima.2024.170089","url":null,"abstract":"<div><div>The Electromagnetic Calorimeter (ECAL) was fully installed and commissioned in 2023 as a part of the HADES experiment at FAIR-GSI, Germany. HADES is a versatile magnetic spectrometer designed to study medium modifications of light vector mesons through their dilepton decay in heavy-ion collisions and to explore the QCD phase diagram at high baryonic densities and low temperatures. The ECAL setup comprises six sectors with 163 modules each, using Cherenkov light detection with lead-glass prisms and photomultiplier tubes. Preliminary results from the <span><math><msup><mrow><mi>π</mi></mrow><mrow><mn>0</mn></mrow></msup></math></span> invariant mass reconstruction during the C+C 800 A MeV HADES experiment in February 2024 are presented.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1071 ","pages":"Article 170089"},"PeriodicalIF":1.5,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142747393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The high-precision detector of the JUNO-TAO experiment","authors":"Zhimin Wang,&nbsp;JUNO collaboration","doi":"10.1016/j.nima.2024.170090","DOIUrl":"10.1016/j.nima.2024.170090","url":null,"abstract":"<div><div>The Taishan Antineutrino Observatory (TAO) is a proposed ton scale liquid scintillator (LS) detector designed to precisely measure the reactor neutrino energy spectrum with the highest possible energy resolution. This will provide a reference spectrum for Jiangmen Underground Neutrino Observatory (JUNO) and a benchmark to verify the nuclear database. As a satellite experiment of JUNO, TAO will be installed near the reactor core at a distance of <span><math><mo>∼</mo></math></span>30<!--> <!-->m. The detector uses 2.8<!--> <span><math><msup><mrow><mi>m</mi></mrow><mrow><mn>3</mn></mrow></msup></math></span> of Gd-doped liquid scintillator (<span><math><mo>∼</mo></math></span>1 ton fiducial volume, Gd-LS) contained in a spherical acrylic vessel. To maximize the photon collection efficiency in the detector, a 10<!--> <span><math><msup><mrow><mi>m</mi></mrow><mrow><mn>2</mn></mrow></msup></math></span> SiPM array is proposed to fully cover the acrylic vessel and collect as many scintillation photon as possible. The photon detection efficiency of SiPMs should be larger than 50%, in order to achieve the desired energy resolution (1.5%/<span><math><msqrt><mrow><mi>E</mi></mrow></msqrt></math></span>, photon statistical resolution). Additionally, the SiPMs will be operated at low temperature (−50 °C or lower) to reduce dark noise. Meanwhile, a shield and muon veto system will be located outside of the neutrino detector to control the environmental background. An overview of the JUNO-TAO experiment and its current progress are discussed.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1071 ","pages":"Article 170090"},"PeriodicalIF":1.5,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142721862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Estimation of Bonner sphere cross-talking with Monte Carlo method and spectrometer calibration with 241Am-Be neutron source","authors":"Hai Wan,&nbsp;Luying Yang,&nbsp;Xiaofei Jiang","doi":"10.1016/j.nima.2024.170071","DOIUrl":"10.1016/j.nima.2024.170071","url":null,"abstract":"<div><div>There are usually two kinds of experiment methods for neutron spectrum measurement by Bonner sphere spectrometer (BSS). The first is to use only one Bonner sphere (BS) at a time to complete the neutron experiment by repeated measurements; The other is to measure multiple Bonner spheres (BSs) together, and this multi-sphere simultaneous measurement method can complete the neutron experiment only once. The single sphere measurement method cannot guarantee that the measurement environment is completely consistent every time, which leads to inevitable measurement errors. The multi-sphere simultaneous measurement method can ensure the same experimental environment for each sphere, but there will be cross-talking. This paper studies the influence of cross-talking on BSS. Firstly, we use Geant4 to simulate the corresponding neutron response function with and without cross-talking, and analyze the error between the two neutron response functions. Secondly, the neutron count of <figure><img></figure> neutron source experiment is simulated. Considering that the BSS is close to the floor, the neutron counting error of BS with and without cross-talking and floor scattering is calculated. Finally, we actually measure the <figure><img></figure> neutron source using a BSS and obtain 8 neutron counts. The spectrum of <figure><img></figure> neutron source is obtained by calibrating the influence of cross-talking. The results show that the scattered neutrons which affect the count of BS are mainly the primary scattered neutrons, which account for more than 90% of all scattered neutrons. The scattered neutrons mainly affect the neutron response function of the large BS in the high energy domain and the small BS in the low energy domain. The cross-talking has a great influence on the neutron count of large and small BS, while the floor scattering has a great influence only on the small BS. The <figure><img></figure> neutron spectrum obtained by calibrated neutron counts is more accurate than that obtained by the original experiment counts. Especially in the range of 1<span><math><mo>∼</mo></math></span>5 MeV, the calibrated <figure><img></figure> neutron spectrum is much closer to the international standard spectrum. The mean square error (RMSE) of calibrated <figure><img></figure> neutron spectrum is reduced by 3.86%. In this paper, by analyzing the influence of cross-talking, the neutron count of BSS is calibrated, and the accuracy of <figure><img></figure> neutron spectrum is improved, which provides a strong basis for unfolding neutron spectrum.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1071 ","pages":"Article 170071"},"PeriodicalIF":1.5,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142699975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ToASt: A 64-channel ASIC for the readout of the Silicon Strip Detectors of the PANDA experiment","authors":"G. Mazza ,&nbsp;D. Calvo ,&nbsp;F. Cossio ,&nbsp;P. De Remigis ,&nbsp;F. Lenta ,&nbsp;M. Mignone ,&nbsp;R. Wheadon ,&nbsp;J. Becker ,&nbsp;K.T. Brinkmann ,&nbsp;M. Caselle ,&nbsp;A. Kopmann ,&nbsp;O. Manzhura ,&nbsp;M. Peter ,&nbsp;V. Sidorenko ,&nbsp;P. Stanek ,&nbsp;T. Stockmanns ,&nbsp;L. Tomasek ,&nbsp;N. Troll ,&nbsp;K.L. Unger ,&nbsp;H.G. Zaunick","doi":"10.1016/j.nima.2024.170069","DOIUrl":"10.1016/j.nima.2024.170069","url":null,"abstract":"<div><div>The silicon strip sensors for the Micro Vertex Detector (MVD) of the PANDA experiment must provide both the Time of Arrival (ToA) and the charge released by the crossing particle. In order to cope with these requirements a 64-channel dedicated ASIC, named ToASt, has been designed and extensively tested. Each channel includes a charge-sensitive amplifier, a current mode shaper, a linear Time over Threshold (ToT) stage and double threshold discrimination. The ToA and ToT are obtained by storing the value of a 12-bit time stamp at the two edges of the comparator. The two values are immediately readout by a digital interface, formatted in 32-bit words and transmitted, via two 160 MS/s serial links.</div><div>The ToASt ASIC is designed in a commercial CMOS 110 nm technology. Its digital logic has been triplicated in order to improve its Single-Event Upset (SEU) protection.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1071 ","pages":"Article 170069"},"PeriodicalIF":1.5,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142721863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental validation of the Gaseous Proton Recoil Telescope for quasi-absolute neutron flux measurements","authors":"Carole Chatel ,&nbsp;Ludovic Mathieu ,&nbsp;Mourad Aïche ,&nbsp;Abdel Rebii ,&nbsp;Hedi El Amami ,&nbsp;Benoît Dufort ,&nbsp;Maria Diakaki ,&nbsp;Olivier Bouland ,&nbsp;Gilles Noguère","doi":"10.1016/j.nima.2024.170084","DOIUrl":"10.1016/j.nima.2024.170084","url":null,"abstract":"<div><div>The accuracy of neutronics simulations of actual or future reactor cores is nowadays driven by the precision of the nuclear data used as input. Among the most important neutron-induced fission cross sections to understand well are the actinides. It is, indeed, of primary importance to know accurately these cross sections around 1 MeV for the safety of Generation IV reactors. High accuracy measurements of neutron flux are essential for accurate cross section measurements; measurements of this flux with respect to the ¹H(n,n)p cross section can be made with the proton recoil technique. For an accurate measurement below 1 MeV, the Gaseous Proton Recoil Telescope (GPRT) is developed and characterized, with the aim to provide quasi-absolute neutron flux measurements with an accuracy better than 2%. This detector is composed of a double ionization chamber with a Micromegas segmented detection plane. The pressure of the gas can be adjusted to protons stopping range — and therefore to neutrons energy. An accurate neutron flux measurement requires that the GPRT has an intrinsic efficiency of 100%, and thus an important effort has been made to verify this. An alpha source and proton micro-beam have been used and the intrinsic efficiency is confirmed to be 100%. Additionally the dead-time of the detector has been investigated on a test bench, and is found to be 7.3 ms.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1071 ","pages":"Article 170084"},"PeriodicalIF":1.5,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142747374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"FSUDAQ - A general purpose GUI data acquisition program for the CAEN x725, x730, x740 digitizers","authors":"T.L. Tang","doi":"10.1016/j.nima.2024.170072","DOIUrl":"10.1016/j.nima.2024.170072","url":null,"abstract":"<div><div><span>FSUDAQ</span> is a versatile, multi-threaded, lightweight, and open-source data acquisition software with a graphical user interface, designed to fully utilize the capabilities of first-generation CAEN x725, x730, and x740 series digitizers equipped with various Digital Pulse Processing (DPP) firmware, including Pulse-Height Analysis (PHA), Pulse-Shape Discrimination (PSD), and Charge-Digital Conversion (QDC). It emphasizes user-friendliness, stability, scalability, high throughput, and low latency. The software includes features such as an online waveform scope, scalar panel, and real-time single spectrum display for each input channel, along with an online event builder and analyzer capable of generating 1D and 2D histograms and applying graphical cuts. Users can also create and integrate custom online analyzers to meet specific experimental requirements. <span>FSUDAQ</span> has been successfully tested at the John D. Fox laboratory at Florida State University (FSU) with a diverse set of experiments using the Encore and ANASEN active target detectors, the Super-Enge Split-Pole Spectrograph, and the CATRiNA neutron detectors. In terms of performance, <span>FSUDAQ</span> can handle up to approximately 500k triggers per second per channel without waveform recording, or data rates of around 65 MB/s per optical fiber, with or without waveform recording.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1071 ","pages":"Article 170072"},"PeriodicalIF":1.5,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142699974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research and application of chromatic effect in laser-driven proton therapy","authors":"Kai Wang ,&nbsp;Kedong Wang ,&nbsp;Jie Li ,&nbsp;Xuezhi Wu ,&nbsp;Yiyu Fang ,&nbsp;Haoyang Lan ,&nbsp;Xu Zhang ,&nbsp;Shixian Cai ,&nbsp;Tingru Zhu ,&nbsp;Caijie Zhang ,&nbsp;Yingjie Li ,&nbsp;GuoHui Wei ,&nbsp;Chen Lin ,&nbsp;Xueqing Yan ,&nbsp;Kun Zhu","doi":"10.1016/j.nima.2024.170078","DOIUrl":"10.1016/j.nima.2024.170078","url":null,"abstract":"<div><div>Based on the rapid development of ultra high-power laser technology and due to the urgent need for miniaturized particle radiotherapy accelerator construction, compact laser accelerators have been studied as a research focus. The collection of the beam with large divergence angle and the selection of beam energy spread from initial generated beam are core issues in the design of laser accelerator. Chromatic effect is an effective method of energy selection while collecting beam. However, it is found that the nonlinear effect introduced by the actual edge field of a strong magnetic field and the special beam distribution produced by laser acceleration directly affect the energy selection. Based on the design of CLAPA-II, we analyze chromatic effect of energy selection by combining the 3-D strong magnetic field of particle collecting solenoid and the initial particle library of laser acceleration generated by PIC. We further propose a more compact laser-driven proton therapy design using the chromatic effect and energy reducer. And we research a broad-spectrum treatment planning system corresponding to it. It can effectively reduce proportion of low energy particles and complete energy selection after considering nonlinear effect of high 3-D magnetic field and special initial distribution. This can be applied in the design of gantry, which can be lighter than the traditional gantry. And for head, neck, and lung tumor models, dose delivery can be completed in 10 min and 20 min.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1071 ","pages":"Article 170078"},"PeriodicalIF":1.5,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142721394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Characterization of a radiation detector based on opaque water-based liquid scintillator","authors":"LiquidO Collaboration,&nbsp;J. Apilluelo ,&nbsp;L. Asquith ,&nbsp;E.F. Bannister ,&nbsp;J.L. Beney ,&nbsp;X. de La Bernardie ,&nbsp;T.J.C. Bezerra ,&nbsp;M. Bongrand ,&nbsp;C. Bourgeois ,&nbsp;H. Boutalha ,&nbsp;D. Breton ,&nbsp;M. Briere ,&nbsp;A. Cabrera ,&nbsp;A. Cadiou ,&nbsp;E. Calvo ,&nbsp;V. Chaumat ,&nbsp;E. Chauveau ,&nbsp;B.J. Cattermole ,&nbsp;M. Chen ,&nbsp;P. Chimenti ,&nbsp;F. Yermia","doi":"10.1016/j.nima.2024.170075","DOIUrl":"10.1016/j.nima.2024.170075","url":null,"abstract":"<div><div>We present the characterization of a novel radiation detector based on an opaque water-based liquid scintillator. Opaque scintillators, also known as LiquidO, are made to be highly scattering, such that the scintillation light is effectively confined, and read out through wavelength-shifting fibers. The 1-liter, 32-channel prototype demonstrates the capability for both spectroscopy and topological reconstruction of point-like events. The design, construction, and evaluation of the detector are described, including modeling of the scintillation liquid optical properties and the detector’s response to gamma rays of several energies. A mean position reconstruction error of 4.4 mm for 1.6 MeV-equivalent events and 7.4 mm for 0.8 MeV-equivalent events is demonstrated using a simple reconstruction approach analogous to center-of-mass.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1071 ","pages":"Article 170075"},"PeriodicalIF":1.5,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142721395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rate-induced aging effects on Parallel-Plate Avalanche Counter (PPAC) caused by heavy ion beams","authors":"Salvatore Di Carlo,&nbsp;Marco Cortesi,&nbsp;Iulia-Maria Harca","doi":"10.1016/j.nima.2024.170076","DOIUrl":"10.1016/j.nima.2024.170076","url":null,"abstract":"<div><div>The Facility for Rare Isotope Beams (FRIB) is one of the premier scientific user facilities for nuclear science with radioactive beams, capable of producing most (approximately 80%) of the isotopes expected to exist, from oxygen to uranium, at energies up to 200 MeV/u. With the increase in beam power from the present 10 kW to the planned 400 kW, FRIB experiments are about to enter a new era. An unprecedented rate capability as well as stable performance of all the planned instrumentation intended for beam diagnostics and beam tuning is required at the expected high beam intensities (<span><math><mrow><mo>&gt;</mo><mn>1</mn></mrow></math></span> MHz). A summary of aging phenomena at high heavy-ion beam rates observed in the Advanced Rare Isotope Separator (ARIS) detectors for beam diagnostics, including Parallel Plate Avalanche Counters (PPAC) and plastic scintillation for time-of-flight measurements, is discussed. Current research and development project to mitigate rate-induced aging are presented.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1071 ","pages":"Article 170076"},"PeriodicalIF":1.5,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142700084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}