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applied physics and computing (ICAPC), international conference on

作者： Yongzhuo Cheng Lingpei Gongye Yanpeng Liu Hongfen Tang Yinghua Dong Shuangqing Zhang Datang Hainan Energy Development Co. Ltd. Haikou Hainan China Datang Sanya Future Energy Research Institute Co. Ltd. Sanya Hainan China New Energy Branch of Datang Hainan Energy Development Co. Ltd. Haikou Hainan China China Datang Corporation Science and Technology General Research Institute Ltd. Beijing China China Electric Power Research Institute Nanjing Jiangsu China

In the face of the current technology that the heat generated by the sun is still the main by-product of photovoltaic hydropower generation, and the technical problems of limited application range such as low temperature of hot water supply, the present invention proposes a system that combines photovoltaic hydropower generation with solar thermal power. Power generation can be converted in time to meet the needs of various energy forms in different seasons, different times. At the same time, the high-concentration function of the concentrator is used in both working states of photovoltaic power generation and photothermal power generation, which can carry out high-efficiency hydropower generation and high-efficiency heating, and provide heat and electricity with a wider range of uses.

关键词： Photovoltaic systems Temperature distribution Technological innovation Hydroelectric power generation Water heating Switches Sun

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Physical Design of Local-volume Ignition for Inertial confinement Fusion

Physical Design of Local-volume Ignition for Inertial Confin...

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applied physics and computing (ICAPC), international conference on

作者： Pan Liu Zhangchun Tang Qiang Gao Wenbin Xiong Tianfu Innovation Energy Establishment Chengdu China University of Electronic Science and Technology of China Chengdu China Nuclear and Radiation Safety Center MEE Beijing China

Inertial confinement Fusion(ICF) uses the inertia of the substance itself to confine the nest-temperature thermonuclear fuel plasma to achieve thermonuclear fusion and obtain fusion energy. In the design of the local-volume ignition target capsule, the ignition zone and the main combustion zone are separated by heavy medium. The ignition zone is located in the center of the system (the part of the fusion combustion). The mass is small and can be compressed to high density and the overall temperature is raised to the ignition state (local-volume ignition). The temperature increase and density increase of the local volume ignition are relatively decoupled in time. The multi-step enhanced shock wave heats the fuel temperature drop, after which the collision effect accelerates the metal shell layer by layer, and uses the inertia of high-Z metal shell with a larger residual mass to achieve effective compression of the fuel areal after the driving source ends for a long time. Local volume ignition has the advantages of no need to reshape the radiation driving pulse, resistance to the influence of hot electrons, less demanding compression symmetry, and large combustion gain.

关键词： Resistance Shock waves Insulation Inertial confinement Metals Ignition Combustion

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Vibration analysis of 28 kHz horn transducer for ultrasonic cleaning based on harmonic response analysis 3

Vibration analysis of 28 kHz horn transducer for ultrasonic ...

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3rd international conference on Emerging Electrical Energy, Electronics and computing Technologies 2021, ICE4CT 2021

作者： Phophayu, Suchada Thongsri, Jatuporn Computer simulation in Engineering Research Group College of Advanced Manufacturing Innovation King Mongkut's Institute of Technology Ladkrabang Bangkok10520 Thailand

The Horn Transducer (HT) is one of the key components in ultrasonic applications, consisting of a front mass, piezoelectric, and back mass parts. Previously, most of the research focused on vibration study of the front mass part based on modal analysis, but the other parts were ignored;therefore, the research results have limitations to actual usage. This research presents the vibration analysis of HT included all parts, based on harmonic response analysis (HRA). First, a conventional HT of 28 kHz, 50 W, 220 V, front mass-radius (R) of 29 mm, and height (H) of 5 mm was investigated for the vibration analysis. Next, proposed designs were also investigated by varying the R as 27 mm - 32 mm, and H as 4 mm - 8 mm. All results were analyzed to find a suitable shape and investigated the designs that affected the vibration. The simulation results revealed that the longitudinal amplitude depends on R and H. In addition, the simulation results were consistent with an experiment and previous work. Finally, the suitable design with R of 29 mm and H of 7 mm provided the optimum vibration at 27,250 Hz. The outcomes of this research were applied to develop a high-performance ultrasonic cleaner. © Published under licence by IOP Publishing Ltd.

关键词： Finite element method

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Preparation and dynamic behavior of W-Mo-Y co infiltrated layer on the surface of 45 steel parts 8

Preparation and dynamic behavior of W-Mo-Y co infiltrated la...

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2022 8th international conference on applied Materials and Manufacturing Technology, ICAMMT 2022

作者： Huang, Change Wang, Chenglei Tan, Hong Lu, Rongwei Yang, Jijie Xie, Yingguang Li, Xin Liu, Chong Teaching Practice Department Guilin University of Electronic Technology Guilin541004 China School of Materials Science and Engineering Guangxi Key Laboratory of Information Materials Engineering Research Center of Electronic Information Materials and Devices Ministry of Education Guilin University of Electronic Technology Guilin541004 China Affiliated Hospital of Guilin Medical University Guilin541001 China School of Mathematics & Computing Science Guilin541004 China

In this paper, W-Mo-Y co infiltration were carried out on the surface of 45 steel wedge components by plasma solid-state surface metallurgy technology. The phase, hardness, friction and wear properties before and after W-Mo co infiltration and W-Mo-Y co infiltration were systematically studied. The diffusion kinetics such as diffusion coefficient and diffusion activation energy were calculated by Fick's second diffusion law, and the effect of Y on the diffusion of W and Mo atoms in the infiltrated layer was obtained. It is found that the addition of rare earth Y element increases the diffusion coefficient of W and Mo atoms and reduces the diffusion activation energy, which has a certain catalytic effect. And the W-Mo-Y co infiltration significantly improves the surface hardness and wears resistance of the parts and prolongs the service life of the parts. © Published under licence by IOP Publishing Ltd.

关键词： Diffusion

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Status and recent results from the Radio Neutrino Observatory in Greenland (RNO-G) 38

Status and recent results from the Radio Neutrino Observator...

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38th international Cosmic Ray conference, ICRC 2023

作者： Hallmann, S. Aguilar, J.A. Allison, P. Besson, D. Bishop, A. Botner, O. Bouma, S. Buitink, S. Castiglioni, W. Cataldo, M. Clark, B.A. Coleman, A. Couberly, K. Dasgupta, P. de Kockere, S. de Vries, K.D. Deaconu, C. DuVernois, M.A. Eimer, A. Glaser, C. Glüsenkamp, T. Hallgren, A. Hanson, J.C. Hendricks, B. Henrichs, J. Heyer, N. Hornhuber, C. Hughes, K. Karg, T. Karle, A. Kelley, J.L. Korntheuer, M. Kowalski, M. Kravchenko, I. Krebs, R. Lahmann, R. Lehmann, P. Latif, U. Laub, P. Liu, C.-H. Mammo, J. Marsee, M.J. Meyers, Z.S. Mikhailova, M. Michaels, K. Mulrey, K. Muzio, M. Nelles, A. Novikov, A. Nozdrina, A. Oberla, E. Oeyen, B. Plaisier, I. Punsuebsay, N. Pyras, L. Ryckbosch, D. Schlüter, F. Scholten, O. Seckel, D. Seikh, M.F.H. Smith, D. Stoffels, J. Southall, D. Terveer, K. Toscano, S. Tosi, D. Van Den Broeck, D.J. van Eijndhoven, N. Vieregg, A.G. Vischer, J.Z. Welling, C. Williams, D.R. Wissel, S. Young, R. Zink, A. Platanenallee 6 Zeuthen15738 Germany Université Libre de Bruxelles Science Faculty CP230 BrusselsB-1050 Belgium Dept. of Physics Center for Cosmology and AstroParticle Physics Ohio State University ColumbusOH43210 United States University of Kansas Dept. of Physics and Astronomy LawrenceKS66045 United States Uppsala University Dept. of Physics and Astronomy UppsalaSE-752 37 Sweden Friedrich-Alexander-University Erlangen-Nürnberg Erlangen91058 Germany Vrije Universiteit Brussel Astrophysical Institute Pleinlaan 2 Brussels1050 Belgium Department of Physics University of Maryland College ParkMD20742 United States Dept. of Physics Enrico Fermi Inst. Kavli Inst. for Cosmological Physics University of Chicago ChicagoIL60637 United States Vrije Universiteit Brussel Dienst ELEM BrusselsB-1050 Belgium Dept. of Physics University of Wisconsin-Madison MadisonWI53703 United States Whittier College WhittierCA90602 United States Dept. of Astrophysics IMAPP Radboud University PO Box 9010 6500 GL Netherlands Dept. of Physics Dept. of Astronomy & Astrophysics Penn State University University ParkPA16801 United States Institut für Physik Humboldt-Universität zu Berlin Berlin12489 Germany Dept. of Physics and Astronomy Univ. of Nebraska-Lincoln NE68588 United States Dept. of Physics and Astronomy University of Alabama TuscaloosaAL35487 United States Ghent University Dept. of Physics and Astronomy GentB-9000 Belgium Dept. of Physics and Astronomy University of Delaware NewarkDE19716 United States Kapteyn Institute University of Groningen Groningen Netherlands

The Radio Neutrino Observatory in Greenland (RNO-G) is an in-ice radio detector for the detection of ultra-high energy neutrinos beyond ∼10 PeV. The array is under construction and will consist of 35 stations, with the potential to make the first detection of a neutrino-induced particle shower via the Askaryan emission. Stations operate autonomously and consist of both deep antennas deployed down to -100 m in the ice, and high-gain log-periodic dipole antennas buried near the surface. In total, seven RNO-G stations were installed during the 2021 and 2022 field seasons and are collecting data since. Here, we present the current status and performance of the experiment. We present results from first analyses using the deep and shallow components of the instrument. © Copyright owned by the author(s) under the terms of the Creative Commons.

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IV Smart NanoMaterials: Advances, innovation and Applications (SNAIA) Hybrid Online - Onsite conference

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Journal of physics: conference Series 2022年第1期2172卷 011001-011001页

作者： Baldycheva, A. Berseneva, E. University of Exeter Exeter United Kingdom Sorbonne University Paris France STEMM Global Scientific Society London United Kingdom

École Nationale Supérieure de Chimie de Paris, ParisTech, France7-10 December 2021Smart nanomaterials are the basis of diverse emerging applications, including wearable and printed electronics, flexible optoelectronics, CMOS photonics, quantum computing, smart coatings and thin films. This collection focuses on the most recent scientific and technological advances, innovations and new practical applications of novel smart nanomaterials presented at the 4th Smart Nanomaterials conference, SNAIA 2021. It covers topics ranging from advances in the most critical aspects in chemistry and material fabrication of nanomaterials, to the engineering of prototype devices and *** of Scientific Committee, Organising Committee, Editorial Board, Plenary Speakers, Keynote Speakers and Invited Speakers are available in this pdf.

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Research Advanced in the Image Segmentation

Research Advanced in the Image Segmentation

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applied physics and computing (ICAPC), international conference on

作者： Yifan Zhang Wenqing Deng Kai Zheng Xiaoyao Lu School of AI and Advanced Computing Xi'an Jiaotong-Liverpool University Suzhou China Lide International High School Nanchang China Department of Mathematics University of California Los Angeles Los Angeles USA Department of Computer Science Zhejiang Agricultural & Forestry University Hangzhou China

Due to the progress of computer technology, image processing-based applications become more and more important not only in advanced research fields but also in our daily life. For example, biomedical image processing, autonomous vehicles, video surveillance, computer vision, augmented reality, and many more are some hotspots in research as well as the applications. The technology of image segmentation is the basis of all these applications. In this review, we summarize the traditional image segmentation methods and algorithms including segmentation based on thresholding, segmentation based on graph theory, and segmentation based on region. Also, due to the exceptional performance of the CNN model, a series of CNN-based segmentation algorithms were proposed. Along with the invention of these new approaches, segmentation task has been pushed to a higher accuracy and efficiency level. Thus, we also summarize the major CNN-based model, such as the FCN model, the Encoder-Decoder designed architectures, the Multi-scale and Pyramid-based architectures, and Deeplab Family. Moreover, we provide some information on some popular datasets and metrics to rigorously evaluate a model, and we provide tables that contain the quantitative information on each model's performance. Even though the outcomes of current models have reached a significant level, there are still many problems that need to be tackled. At last, we provide our opinion regarding the current situation in image segmentation field.

关键词： Measurement Image segmentation Technological innovation Thresholding (Imaging) Statistical analysis Computer architecture Video surveillance

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international conference on innovation and Application in Science and Technology (ICIAST 2021) December 21-23, 2021

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Journal of physics: conference Series 2022年第1期2223卷 011001页

作者： Tripathi, R. Srivastava, B.K. Mishra, R.K. Singh, P. Department of Applied Sciences Galgotias College of Engineering and Technology Greater Noida201306 India

We are very pleased to present the conference proceedings of ICIAST-2021. The conference has been organized in virtual mode due to worldwide COVID Protocol and safety measures by Department of applied Sciences, Galgotias College of Engineering and Technology, Greater Noida, Uttar Pradesh, India during December, 21-23, 2021, in Greater Noida, Uttar Pradesh, *** this conference approx. 300 young researchers, engineers, scientists, academicians and industrial delegates participated from more than 20 countries of the globe on common virtual platform of zoom to share and exchange their research findings including theoretical results, novel scientific models and work in progress in the different areas of Science & Technology. During virtual conversations participants from remote areas faced sometime network issues but overall communication was good throughout the even. More than 30 international resource persons from different fields share their expertise with the young academicians and researcher with case studies and concrete examples within allowed time span. The scientific & technical program of the three days international conference have review talks, invited lectures, contributed oral *** proceeding includes papers from physics, Mathematics and their applications. A sound understanding of the same shall help emergence of new ideas that can be helpful in building trained professionals who can serve in the knowledge-based industries. We are pleased to appreciate our dynamic reviewers who took time and effort for providing their valuable comments in time and help towards the improvement of quality of papers through rigours review *** of Organizing Committee, image, ICIAST-2021 Proceeding Editorial Team are available in this pdf.

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H.E.S.S. realtime follow-ups of IceCube high-energy neutrino alerts 38

H.E.S.S. realtime follow-ups of IceCube high-energy neutrino...

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38th international Cosmic Ray conference, ICRC 2023

作者： Bradascio, Federica Ashkar, Halim Borowska, Jowita Mbarubucyeye, Jean Damascene Oukacha, Enzo Schüssler, Fabian Suzuki, Hiromasa Wierzcholska, Alicja Abbasi, R. Ackermann, M. Adams, J. Agarwalla, S.K. Aguilar, J.A. Ahlers, M. Alameddine, J.M. Amin, N.M. Andeen, K. Anton, G. Argüelles, C. Ashida, Y. Athanasiadou, S. Axani, S.N. Bai, X. Balagopal, V.A. Baricevic, M. Barwick, S.W. Basu, V. Bay, R. Beatty, J.J. Becker Tjus, J. Beise, J. Bellenghi, C. Benning, C. BenZvi, S. Berley, D. Bernardini, E. Besson, D.Z. Blaufuss, E. Blot, S. Bontempo, F. Book, J.Y. Boscolo Meneguolo, C. Böser, S. Botner, O. Böttcher, J. Bourbeau, E. Braun, J. Brinson, B. Brostean-Kaiser, J. Burley, R.T. Busse, R.S. Butterfield, D. Campana, M.A. Carloni, K. Carnie-Bronca, E.G. Chattopadhyay, S. Chau, N. Chen, C. Chen, Z. Chirkin, D. Choi, S. Clark, B.A. Classen, L. Coleman, A. Collin, G.H. Connolly, A. Conrad, J.M. Coppin, P. Correa, P. Cowen, D.F. Dave, P. De Clercq, C. DeLaunay, J.J. Delgado, D. Deng, S. Deoskar, K. Desai, A. Desiati, P. de Vries, K.D. de Wasseige, G. DeYoung, T. Diaz, A. Díaz-Vélez, J.C. Dittmer, M. Domi, A. Dujmovic, H. Du Vernois, M.A. Ehrhardt, T. Eller, P. Ellinger, E. El Mentawi, S. Elsässer, D. Engel, R. Erpenbeck, H. Evans, J. Evenson, P.A. Fan, K.L. Fang, K. Farrag, K. Fazely, A.R. Fedynitch, A. Feigl, N. Fiedlschuster, S. Finley, C. Fischer, L. Fox, D. Franckowiak, A. Fritz, A. Fürst, P. Gallagher, J. Ganster, E. Garcia, A. Gerhardt, L. Ghadimi, A. Glaser, C. Glauch, T. Glüsenkamp, T. Goehlke, N. Gonzalez, J.G. Goswami, S. Grant, D. Gray, S.J. Gries, O. Griffin, S. Griswold, S. Groth, K.M. Günther, C. Gutjahr, P. Haack, C. Hallgren, A. Halliday, R. Halve, L. Halzen, F. Hamdaoui, H. Ha Minh, M. Hanson, K. Hardin, J. Harnisch, A.A. Hatch, P. Haungs, A. Helbing, K. Hellrung, J. Henningsen, F. Heuermann, L. Heyer, N. Hickford, S. Hidvegi, A. Hill, C. Hill, G.C. Hoffman, K.D. Hori, S. Hoshina, K. Hou, W. Huber, T. Hultqvist, K. III. Physikalisches Institut RWTH Aachen University AachenD-52056 Germany Department of Physics University of Adelaide AdelaideSA5005 Australia Dept. of Physics and Astronomy University of Alaska Anchorage 3211 Providence Dr. AnchorageAK99508 United States Dept. of Physics University of Texas at Arlington 502 Yates St. Science Hall Box 19059 ArlingtonTX76019 United States CTSPS Clark-Atlanta University AtlantaGA30314 United States School of Physics Center for Relativistic Astrophysics Georgia Institute of Technology AtlantaGA30332 United States Dept. of Physics Southern University Baton RougeLA70813 United States Dept. of Physics University of California BerkeleyCA94720 United States Lawrence Berkeley National Laboratory BerkeleyCA94720 United States Institut für Physik Humboldt-Universität zu Berlin BerlinD-12489 Germany Fakultät für Physik & Astronomie Ruhr-Universität Bochum BochumD-44780 Germany Université Libre de Bruxelles Science Faculty CP230 BrusselsB-1050 Belgium Dienst ELEM BrusselsB-1050 Belgium Department of Physics Laboratory for Particle Physics and Cosmology Harvard University CambridgeMA02138 United States Dept. of Physics Massachusetts Institute of Technology CambridgeMA02139 United States Dept. of Physics The International Center for Hadron Astrophysics Chiba University Chiba263-8522 Japan Department of Physics Loyola University Chicago ChicagoIL60660 United States Dept. of Physics and Astronomy University of Canterbury Private Bag 4800 Christchurch New Zealand Dept. of Physics University of Maryland College ParkMD20742 United States Dept. of Astronomy Ohio State University ColumbusOH43210 United States Dept. of Physics Center for Cosmology and Astro-Particle Physics Ohio State University ColumbusOH43210 United States Niels Bohr Institute University of Copenhagen CopenhagenDK-2100 Denmark Dept. of Physics TU Dortmund University DortmundD-44221 Germany Dept. of Physics and Astronomy

The evidence for multi-messenger photon and neutrino emission from the blazar TXS 0506+056 has demonstrated the importance of realtime follow-up of neutrino events by various ground- and space-based facilities. The effort of H.E.S.S. and other experiments in coordinating observations to obtain quasi-simultaneous multiwavelength flux and spectrum measurements has been critical in measuring the chance coincidence with the high-energy neutrino event IC-170922A and constraining theoretical models. For about a decade, the H.E.S.S. transient program has included a search for gamma-ray emission associated with high-energy neutrino alerts, looking for gammaray activity from known sources and newly detected emitters consistent with the neutrino location. In this contribution, we present an overview of follow-up activities for realtime neutrino alerts with H.E.S.S. in 2021 and 2022. Our analysis includes both public IceCube neutrino alerts and alerts exchanged as part of a joint H.E.S.S.-IceCube program. We focus on interesting coincidences observed with gamma-ray sources, particularly highlighting the significant detection of PKS 0625-35, an AGN previously detected by H.E.S.S., and three IceCube neutrinos. © Copyright owned by the author(s) under the terms of the Creative Commons.

关键词： Photons

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Cosmic Ray Anisotropy with 11 Years of IceCube Data 38

Cosmic Ray Anisotropy with 11 Years of IceCube Data

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38th international Cosmic Ray conference, ICRC 2023

作者： Abbasi, R. Ackermann, M. Adams, J. Agarwalla, S.K. Aguilar, J.A. Ahlers, M. Alameddine, J.M. Amin, N.M. Andeen, K. Anton, G. Argüelles, C. Ashida, Y. Athanasiadou, S. Axani, S.N. Bai, X. Balagopal, A.V. Baricevic, M. Barwick, S.W. Basu, V. Bay, R. Beatty, J.J. Becker Tjus, J. Beise, J. Bellenghi, C. Benning, C. BenZvi, S. Berley, D. Bernardini, E. Besson, D.Z. Blaufuss, E. Blot, S. Bontempo, F. Book, J.Y. Boscolo Meneguolo, C. Böser, S. Botner, O. Böttcher, J. Bourbeau, E. Braun, J. Brinson, B. Brostean-Kaiser, J. Burley, R.T. Busse, R.S. Butterfield, D. Campana, M.A. Carloni, K. Carnie-Bronca, E.G. Chattopadhyay, S. Chau, N. Chen, C. Chen, Z. Chirkin, D. Choi, S. Clark, B.A. Classen, L. Cochling, C. Coleman, A. Collin, G.H. Connolly, A. Conrad, J.M. Coppin, P. Correa, P. Cowen, D.F. Dave, P. De Clercq, C. DeLaunay, J.J. Delgado, D. Deng, S. Deoskar, K. Desai, A. Desiati, P. de Vries, K.D. de Wasseige, G. DeYoung, T. Diaz, A. Díaz-Vélez, J.C. Dittmer, M. Domi, A. Dujmovic, H. DuVernois, M.A. Ehrhardt, T. Eller, P. Ellinger, E. El Mentawi, S. Elsässer, D. Engel, R. Erpenbeck, H. Evans, J. Evenson, P.A. Fan, K.L. Fang, K. Farrag, K. Fazely, A.R. Fedynitch, A. Feigl, N. Fiedlschuster, S. Finley, C. Fischer, L. Fox, D. Franckowiak, A. Fritz, A. Fürst, P. Gallagher, J. Ganster, E. Garcia, A. Gerhardt, L. Ghadimi, A. Glaser, C. Glauch, T. Glüsenkamp, T. Goehlke, N. Gonzalez, J.G. Goswami, S. Grant, D. Gray, S.J. Gries, O. Griffin, S. Griswold, S. Groth, K.M. Gruchot, K. Günther, C. Gutjahr, P. Haack, C. Hallgren, A. Halliday, R. Halve, L. Halzen, F. Hamdaoui, H. Ha Minh, M. Hanson, K. Hardin, J. Harnisch, A.A. Hatch, P. Haungs, A. Hayes, W. Helbing, K. Hellrung, J. Henningsen, F. Heuermann, L. Heyer, N. Hickford, S. Hidvegi, A. Hill, C. Hill, G.C. Hoffman, K.D. Hori, S. Hoshina, K. Hou, W. Huber, T. Hultqvist, K. Hünnefeld, M. Hussain, R. Hymon, K. In, S. Ishihara, A. Jacquart, M. Janik, O. III. Physikalisches Institut RWTH Aachen University AachenD-52056 Germany Department of Physics University of Adelaide Adelaide5005 Australia Dept. of Physics and Astronomy University of Alaska Anchorage 3211 Providence Dr. AnchorageAK99508 United States Dept. of Physics University of Texas at Arlington 502 Yates St. Science Hall Rm 108 Box 19059 ArlingtonTX76019 United States CTSPS Clark-Atlanta University AtlantaGA30314 United States School of Physics Center for Relativistic Astrophysics Georgia Institute of Technology AtlantaGA30332 United States Dept. of Physics Southern University Baton RougeLA70813 United States Dept. of Physics University of California BerkeleyCA94720 United States Lawrence Berkeley National Laboratory BerkeleyCA94720 United States Institut für Physik Humboldt-Universität zu Berlin BerlinD-12489 Germany Fakultät für Physik & Astronomie Ruhr-Universität Bochum BochumD-44780 Germany Université Libre de Bruxelles Science Faculty CP230 BrusselsB-1050 Belgium Dienst ELEM BrusselsB-1050 Belgium Department of Physics Laboratory for Particle Physics and Cosmology Harvard University CambridgeMA02138 United States Dept. of Physics Massachusetts Institute of Technology CambridgeMA02139 United States Dept. of Physics The International Center for Hadron Astrophysics Chiba University Chiba263-8522 Japan Department of Physics Loyola University Chicago ChicagoIL60660 United States Dept. of Physics and Astronomy University of Canterbury Private Bag 4800 Christchurch New Zealand Dept. of Physics University of Maryland College ParkMD20742 United States Dept. of Astronomy Ohio State University ColumbusOH43210 United States Dept. of Physics Center for Cosmology and Astro-Particle Physics Ohio State University ColumbusOH43210 United States Niels Bohr Institute University of Copenhagen CopenhagenDK-2100 Denmark Dept. of Physics TU Dortmund University DortmundD-44221 Germany Dept. of Physics and Astro

The IceCube Observatory provides our highest-statistics picture of the cosmic-ray arrival directions in the Southern Hemisphere, with over 700 billion cosmic-ray-induced muon events collected between May 2011 and May 2022. Using the larger data volume, we find an improved significance of the PeV cosmic ray anisotropy down to scales of 6°. In addition, we observe a variation in the angular power spectrum as a function of energy, hinting at a relative decrease in large-scale features above 100 TeV. The data-taking period covers a complete solar cycle, providing new insight into the time variability of the signal. We present preliminary results using this up-to-date event sample. © Copyright owned by the author(s) under the terms of the Creative Commons.

关键词： Cosmic rays

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