Journal of Instrumentation最新文献

筛选
英文 中文
Use of parametric X-ray radiation of electrons in crystals to determine the parameters of imaging-plates 利用晶体中电子的参数 X 射线辐射确定成像板的参数
Journal of Instrumentation Pub Date : 2024-06-01 DOI: 10.1088/1748-0221/19/06/c06005
A. V. Berdnichenko, A.V. Budko, V.V. Kolodochkin, A.S. Skliarova, Y. Takabayashi, I. Vnukov
{"title":"Use of parametric X-ray radiation of electrons in crystals to determine the parameters of imaging-plates","authors":"A. V. Berdnichenko, A.V. Budko, V.V. Kolodochkin, A.S. Skliarova, Y. Takabayashi, I. Vnukov","doi":"10.1088/1748-0221/19/06/c06005","DOIUrl":"https://doi.org/10.1088/1748-0221/19/06/c06005","url":null,"abstract":"\u0000 Good agreement between experimental data and the results of calculations of the yield and angular distributions of parametric X-ray radiation of electrons in crystals within the framework of kinematic theory enables us to use the measurement results to determine the photon energy dependence of the sensitivity of X-ray plates. The results of measurements of the angular distributions of parametric X-ray radiation of electrons with an energy of 255 MeV in a Si crystal using imaging plates of several types were compared with the results of calculations that take into account all currently known experimental factors that influence the measurement results. The spectral dependence of the sensitivity of the studied X-ray plates was determined for photon energies of two orders of reflection and for the (111), (1̅1̅1), and (110) reflection planes.","PeriodicalId":507814,"journal":{"name":"Journal of Instrumentation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141279239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Radiation hardness and quality validation of the on-detector electronics for the CMS Drift Tubes upgrade 用于 CMS 漂移管升级的探测器上电子设备的辐射硬度和质量验证
Journal of Instrumentation Pub Date : 2024-06-01 DOI: 10.1088/1748-0221/19/06/c06001
M. Bellato, A. Bergnoli, A. Griggio, M. Toffano, A. Triossi
{"title":"Radiation hardness and quality validation of the on-detector electronics for the CMS Drift Tubes upgrade","authors":"M. Bellato, A. Bergnoli, A. Griggio, M. Toffano, A. Triossi","doi":"10.1088/1748-0221/19/06/c06001","DOIUrl":"https://doi.org/10.1088/1748-0221/19/06/c06001","url":null,"abstract":"\u0000 In view of the High Luminosity LHC upgrade, the so-called Phase 2 upgrade, the electronics\u0000 of the Drift Tubes (DT) subdetector of CMS will undergo a complete innovation. The requirements\u0000 in terms of trigger rate will exceed the capabilities of the present electronics. Thus, all the\u0000 on-detector electronics together with the associated back-end need to be replaced. Phase-2\u0000 on-detector electronics for DT consist of about 800 FPGAs (Field Programmable Gate Array) based\u0000 boards called OBDT (On-detector Board for Drift Tubes). These boards are sub-divided in two\u0000 different categories: 600 OBDT ϕ and 200 OBDT θ, targeting respectively the readout of\u0000 DT wires parallel and normal to the LHC beams. Each OBDT ϕ is able to time-digitize 240 channels with sub-nanosecond resolution and upstream to the back end using multiple high-speed\u0000 optical links running at 10.24 Gb/s. The choice of components known to have good resistance to\u0000 radiation was a requirement in the design of the OBDT. The main component, the FPGA, is a\u0000 flash-based PolarFire from Microsemi, already qualified in different facilities for radiation\u0000 hardness tests. As a validation step, a campaign of radiation tests was carried out at the\u0000 INFN-TIFPA Protontherapy Centre in Trento, Italy, using proton beams. The behavior of an OBDT\u0000  ϕ board was evaluated during radiation exposure with a total dose much higher than expected\u0000 to be integrated during 10 years of HL-LHC, which is 0.5 Gy.","PeriodicalId":507814,"journal":{"name":"Journal of Instrumentation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141280513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Performance assessment of a newly developed non-invasive 2D beam profile monitor for high-intensity accelerators 新开发的用于高强度加速器的无创二维束流剖面监测器的性能评估
Journal of Instrumentation Pub Date : 2024-06-01 DOI: 10.1088/1748-0221/19/06/p06001
Sherry Rosily, Hari Prasad M, B. Dikshit, S. Krishnagopal, Rajesh Kumar
{"title":"Performance assessment of a newly developed non-invasive 2D beam profile monitor for high-intensity accelerators","authors":"Sherry Rosily, Hari Prasad M, B. Dikshit, S. Krishnagopal, Rajesh Kumar","doi":"10.1088/1748-0221/19/06/p06001","DOIUrl":"https://doi.org/10.1088/1748-0221/19/06/p06001","url":null,"abstract":"\u0000 In high-intensity accelerators, minimizing beam loss is\u0000 paramount to avoid damages and activation of accelerator\u0000 components. To achieve this, a reliable beam profile monitor is\u0000 essential for assessing the beam center and spread. Additionally,\u0000 the beam profile can be used to steer the beam during regular\u0000 operation, thus reducing beam loss. In cases of irregular events,\u0000 the monitor can initiate beam profile recording to identify and\u0000 address any issues promptly. In this manuscript, we present a\u0000 detailed description of a non-invasive 2D beam profile monitor,\u0000 focusing on its components, operation, and most importantly, its\u0000 reliability and failure modes. From operation experience, failure\u0000 modes of the system and its effects were identified. Fault tree\u0000 analysis was carried out. Failure rate of sheet generator was\u0000 estimated using response surface method. Failure rates of components\u0000 were used to estimate the failure rate of the system. From the\u0000 target reliability, the required maximum repair time of the system\u0000 was calculated.","PeriodicalId":507814,"journal":{"name":"Journal of Instrumentation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141279677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The orbital angular momentum of radiation from relativistic electrons in the laser wave field with linear polarization 线性偏振激光波场中相对论电子辐射的轨道角动量
Journal of Instrumentation Pub Date : 2024-06-01 DOI: 10.1088/1748-0221/19/06/c06004
O.V. Bogdanov, S.V. Bragin
{"title":"The orbital angular momentum of radiation from relativistic electrons in the laser wave field with linear polarization","authors":"O.V. Bogdanov, S.V. Bragin","doi":"10.1088/1748-0221/19/06/c06004","DOIUrl":"https://doi.org/10.1088/1748-0221/19/06/c06004","url":null,"abstract":"\u0000 The paper reports the results of calculations of the generation of twisted photons by relativistic electrons in the laser wave field with linear polarization. It is shown that in this case the probability of radiation of twisted photons obeys the selection rule that n + m is an even number. The radiation of the probability of detecting a twisted photon is numerically investigated depending on various parameters: photon energy, helicity and the cone opening of the twisted photon. In general, the radiation of twisted photons by electrons in the laser wave field with linear polarization is a mixture of twisted photons at the total angular momentum of the photons; however, we have found conditions when generation of twisted photons will be an almost pure source of twisted photons.","PeriodicalId":507814,"journal":{"name":"Journal of Instrumentation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141277085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hadamard transformation based frequency response mismatch calibration for a 4-channel TIADC 基于哈达玛变换的 4 通道 TIADC 频率响应失配校准
Journal of Instrumentation Pub Date : 2024-06-01 DOI: 10.1088/1748-0221/19/06/p06006
Lei Qian, Yanze Zheng, Sitao Mei, Sicheng Sun, Huiya Xu, Lianping Guo, Yijiu Zhao
{"title":"Hadamard transformation based frequency response mismatch calibration for a 4-channel TIADC","authors":"Lei Qian, Yanze Zheng, Sitao Mei, Sicheng Sun, Huiya Xu, Lianping Guo, Yijiu Zhao","doi":"10.1088/1748-0221/19/06/p06006","DOIUrl":"https://doi.org/10.1088/1748-0221/19/06/p06006","url":null,"abstract":"\u0000 The time-interleaved analog-to-digital converter (TIADC) is\u0000 one of the most effective solutions for improving the sampling rate\u0000 of acquisition systems. However, the frequency response mismatch\u0000 between channels can seriously degrade the performance of the\u0000 system. In this paper, we propose a calibration method for frequency\u0000 response mismatches in 4-channel TIADC systems. Following the\u0000 construction of a four-channel TIADC model using a four-order\u0000 Hadamard matrix, the error signals were extracted using three\u0000 time-invariant filters and subsequently subtracted from the output\u0000 to complete the calibration. It uses the Hadamard transform instead\u0000 of the complex exponential modulator used in conventional\u0000 time-varying filter methods, which can further simplify the signal\u0000 processing without the necessity of complicated calculations. We\u0000 have employed a stimulated four-channel TIADC system to validate the\u0000 effectiveness of the proposed calibration technique. Moreover, in a\u0000 commercial 12.5 GSPS four-channel TIADC system, it is also\u0000 demonstrated that this approach is effective in improving the\u0000 spurious-free dynamic range of the system.","PeriodicalId":507814,"journal":{"name":"Journal of Instrumentation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141276333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
37Ar source on-demand production and deployment for low-energy nuclear recoil measurement in ReD liquid Argon TPC 按需生产和部署 37Ar 源,用于 ReD 液氩 TPC 中的低能核反冲测量
Journal of Instrumentation Pub Date : 2024-06-01 DOI: 10.1088/1748-0221/19/06/c06003
P. Zakhary
{"title":"37Ar source on-demand production and deployment for low-energy nuclear recoil measurement in ReD liquid Argon TPC","authors":"P. Zakhary","doi":"10.1088/1748-0221/19/06/c06003","DOIUrl":"https://doi.org/10.1088/1748-0221/19/06/c06003","url":null,"abstract":"\u0000 The search for light dark matter (< 10 GeV/c\u0000 2) has become increasingly important, since no conclusive evidence has been found in the higher dark matter (DM) mass region. In order to explore this light mass range, it is necessary to accurately model the response of the noble liquid time projection chamber (TPC) detectors, used in many experiments aimed at the direct measurement of DM, to low energy (< 1 keV) nuclear recoils (NRs). In this respect,\u0000 37Ar provides an ideal calibration source in the low-energy region due to its two low-energy peaks at 0.27 and 2.82 keV following electron capture with a 35-day half-life. We propose a method to produce\u0000 37Ar without chemical or heating treatments by using the 40Ca(n,α)37Ar reaction. This can be achieved by irradiating nano-CaO powder with a neutron source (e.g. AmBe) and allowing the produced 37Ar to diffuse into the argon used inside a double-phase TPC. By measuring the NR yields relative to those two low-energy points in the Recoil Directionality (ReD) experiment, other detectors can be cross-calibrated with the same source deployed. In this talk, the 37Ar source production, its deployment, and preliminary results will be presented.","PeriodicalId":507814,"journal":{"name":"Journal of Instrumentation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141279416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Performance of the CERN Proton Synchrotron internal dump: numerical simulation studies and comparison with beam measurements 欧洲核子研究中心质子同步加速器内部倾倒的性能:数值模拟研究以及与光束测量结果的比较
Journal of Instrumentation Pub Date : 2024-06-01 DOI: 10.1088/1748-0221/19/06/t06002
S. Niang, T. Pugnat, D. Domange, L.S. Esposito, M. Giovannozzi, E. Gnacadja, C. Hernalsteens, A. Huschauer, R. Tesse
{"title":"Performance of the CERN Proton Synchrotron internal dump: numerical simulation studies and comparison with beam measurements","authors":"S. Niang, T. Pugnat, D. Domange, L.S. Esposito, M. Giovannozzi, E. Gnacadja, C. Hernalsteens, A. Huschauer, R. Tesse","doi":"10.1088/1748-0221/19/06/t06002","DOIUrl":"https://doi.org/10.1088/1748-0221/19/06/t06002","url":null,"abstract":"\u0000 In the framework of the LHC Injector Upgrade project, a new\u0000 internal dump for the CERN Proton Synchrotron (PS) ring has been\u0000 designed, installed, and successfully commissioned. This device is\u0000 designed to move rapidly into the beam and stop charged particles\u0000 over several thousand turns to provide protection to PS hardware\u0000 against beam-induced damage. Due to its design, the internal dump\u0000 absorbs only a fraction of the secondary particles shower produced\u0000 by the beam particles that impinge on it. The performance of the\u0000 dump should ensure efficient use throughout the PS energy range,\u0000 i.e. from injection at 2 GeV (kinetic energy) to flat top at\u0000 26 GeV (total energy). This paper presents comprehensive numerical\u0000 simulations that combine advanced beam dynamics and beam-matter\u0000 interaction codes to analyse the behaviour of stopped or scattered\u0000 particles. Based on the impacts computed by multi-turn beam dynamics\u0000 simulations, detailed shower simulations with FLUKA were\u0000 performed to assess the impact of the radiation field on downstream\u0000 equipment, with a particular emphasis on the dose measured by Beam\u0000 Loss Monitors. The results of these numerical simulations are\u0000 compared with the data collected during the routine operation of the\u0000 PS and its internal dump.","PeriodicalId":507814,"journal":{"name":"Journal of Instrumentation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141281953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A prototype Radiation Energy Measuring Integrated Circuit with an asynchronous current-pulse reset block providing analog-to-digital conversion in 28 nm CMOS 辐射能量测量集成电路原型,带有异步电流脉冲复位块,可在 28 纳米 CMOS 中进行模数转换
Journal of Instrumentation Pub Date : 2024-04-01 DOI: 10.1088/1748-0221/19/04/c04056
P. Kaczmarczyk, P. Kmon
{"title":"A prototype Radiation Energy Measuring Integrated Circuit with an asynchronous current-pulse reset block providing analog-to-digital conversion in 28 nm CMOS","authors":"P. Kaczmarczyk, P. Kmon","doi":"10.1088/1748-0221/19/04/c04056","DOIUrl":"https://doi.org/10.1088/1748-0221/19/04/c04056","url":null,"abstract":"\u0000 In this paper we introduce a prototype Radiation Energy Measuring Integrated Circuit (REMIC) fabricated in a 28 nm CMOS process. The chip operates in a single-photon counting (SPC) mode and contains 100 pixels with a size of 50 μm × 50 μm. It is designed for precise energy measurements using asynchronous analogue-to-digital conversion. The proposed architecture allows both fast signal processing and precise energy measurement of incoming photons to be performed independently in each pixel, occupying a small pixel area. The integrated circuit (IC) has dimensions of 1.1 mm × 1.1 mm and is currently undergoing preliminary measurements. The paper focuses on the methodology used to mitigate process variations in each of the recording channels.","PeriodicalId":507814,"journal":{"name":"Journal of Instrumentation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140767415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
28 nm front-end channels for the readout of pixel sensors in future high-rate applications 用于未来高速率应用中像素传感器读出的 28 纳米前端通道
Journal of Instrumentation Pub Date : 2024-04-01 DOI: 10.1088/1748-0221/19/04/c04001
L. Gaioni, A. Galliani, L. Ratti, V. Re, G. Traversi
{"title":"28 nm front-end channels for the readout of pixel sensors in future high-rate applications","authors":"L. Gaioni, A. Galliani, L. Ratti, V. Re, G. Traversi","doi":"10.1088/1748-0221/19/04/c04001","DOIUrl":"https://doi.org/10.1088/1748-0221/19/04/c04001","url":null,"abstract":"\u0000 This work is concerned with the design and the characterization of front-end channels, developed in a 28 nm CMOS technology, conceived for the readout of pixel sensors in future, high-rate applications at the next generation facilities.\u0000Two front-end architectures are discussed. In the first one, an in-pixel flash ADC is exploited for the digitization of the signal, whereas the second one features a Time-over-Threshold (ToT) approach. A prototype including the ADC-based front-end has been submitted and the characterization of the chip is discussed in the paper. Simulation results relevant to the ToT-based architecture are reported.","PeriodicalId":507814,"journal":{"name":"Journal of Instrumentation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140781360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Teaching a hands-on session on simultaneous Positron Emission Tomography and Magnetic Resonance image acquisition and quantification in a clinical setting 在临床环境中讲授同步正电子发射断层扫描和磁共振图像采集和量化的实践课程
Journal of Instrumentation Pub Date : 2024-04-01 DOI: 10.1088/1748-0221/19/04/c04028
A. Torrado-Carvajal, L. García-Cañamaque, N. Malpica
{"title":"Teaching a hands-on session on simultaneous Positron Emission Tomography and Magnetic Resonance image acquisition and quantification in a clinical setting","authors":"A. Torrado-Carvajal, L. García-Cañamaque, N. Malpica","doi":"10.1088/1748-0221/19/04/c04028","DOIUrl":"https://doi.org/10.1088/1748-0221/19/04/c04028","url":null,"abstract":"\u0000 Positron Emission Tomography/Magnetic Resonance (PET/MR) imaging, is a novel imaging modality that combines the capabilities of two powerful imaging techniques in a single acquisition. This unique integration allows for simultaneous acquisition of both metabolic and structural data within a single imaging session. In this sense, PET/MR offers a comprehensive and innovative approach to medical imaging, but accompanied by its intrinsic physics and engineering complexity, involving intricate synchronization of high-performance detectors, electromagnetic shielding, and sophisticated correction algorithms, among others. In this hands-on session performed during the 6th INFIERI summer school (Madrid, Spain), we described an introduction to simultaneous PET/MR image acquisition and quantification in a real clinical to students from diverse backgrounds in physics and engineering. We first presented the fundamental aspects of PET/MR image acquisition, including the main theoretical characteristics of PET/MR physics and electronics, visiting the PET/MR facilities at Hospital Universitario HM Puerta del Sur (HM Hospitales, Móstoles, Madrid), and discussing the main PET/MR clinical and research applications. Then, we followed with a practical session on PET/MR image quantification, preparing the students to understand and solve examples on image reconstruction, multimodal data visualization, inhomogeneity correction, image registration, and attenuation correction exploiting the simplicity and usefulness of 3D Slicer.","PeriodicalId":507814,"journal":{"name":"Journal of Instrumentation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140758644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信