Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021)最新文献_第8页

"Chronotron" timing detectors for EAS studies 用于EAS研究的“Chronotron”定时探测器

Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021) Pub Date : 2021-08-10 DOI: 10.22323/1.395.0259

A. Baktoraz, N. Saduyev, O. Kalikulov, D. Beznosko, Y. Mukhamejanov, S. Utey, S. Shinbulatov, N. Yerezhep, A. Zhumabayev, V. Zhukov, A. Shepetov

引用次数: 2

Tunka-Rex Virtual Observatory Tunka-Rex虚拟天文台

Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021) Pub Date : 2021-08-10 DOI: 10.22323/1.395.0421

V. Lenok, O. Kopylova, D. Wochele, F. Polgart, S. Golovachev, V. Sotnikov, E. Sotnikova, P. Bezyazeekov, N. Budnev, O. Fedorov, O. Gress, O. Grishin, A. Haungs, T. Huege, Y. Kazarina, M. Kleifges, E. Korosteleva, D. Kostunin, L. Kuzmichev, V. Lenok, N. Lubsandorzhiev, S. Malakhov, T. Marshalkina, R. Monkhoev, E. Osipova, A. Pakhorukov, L. Pankov, V. Prosin, F. Schröder, D. Shipilov, A. Zagorodnikov

引用次数: 1

Composition Sensitivity for the Cosmic Ray Anisotropy with SWGO 用SWGO研究宇宙射线各向异性的成分灵敏度

Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021) Pub Date : 2021-08-10 DOI: 10.22323/1.395.0198

A. Taylor, G. Giacinti, P. Desiati, J. C. Vélez, A. Chiavassa, G. Sciascio, J. Velazquez, S. Kunwar

引用次数: 2

Reconstruction of sub-threshold events of cosmic-ray radio detectors using an autoencoder 用自编码器重建宇宙射线射电探测器的亚阈值事件

Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021) Pub Date : 2021-08-10 DOI: 10.22323/1.395.0223

P. Bezyazeekov, D. Shipilov, I. Plokhikh, A. Mikhaylenko, P. Turishcheva, S. Golovachev, V. Sotnikov, E. Sotnikova, N. Budnev, O. Fedorov, O. Gress, O. Grishin, A. Haungs, T. Huege, Y. Kazarina, M. Kleifges, E. Korosteleva, D. Kostunin, L. Kuzmichev, V. Lenok, N. Lubsandorzhiev, S. Malakhov, T. Marshalkina, R. Monkhoev, E. Osipova, A. Pakhorukov, L. Pankov, V. Prosin, F. Schroder, A. Zagorodnikov

引用次数: 2

Efficiency estimation of self-triggered antenna clusters for air-shower detection 风淋探测自触发天线簇效率估计

Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021) Pub Date : 2021-08-10 DOI: 10.22323/1.395.0273

P. Bezyazeekov, O. Fedorov, Y. Kazarina, O. Kopylova, D. Kostunin, V. Lenok, S. Malakhov

{"title":"Efficiency estimation of self-triggered antenna clusters for air-shower detection","authors":"P. Bezyazeekov, O. Fedorov, Y. Kazarina, O. Kopylova, D. Kostunin, V. Lenok, S. Malakhov","doi":"10.22323/1.395.0273","DOIUrl":"https://doi.org/10.22323/1.395.0273","url":null,"abstract":"Air-shower radio arrays operate in low signal-to-noise ratio conditions, which complicates the autonomous measurement of air-shower signals without using an external trigger from optical or scintillator detectors. A simple threshold trigger for radio detector can be efficiently applied onlyin radio-quiet conditions, because for other cases this trigger detects a high fraction of noise pulses. In the present work, we study aspects of independent air-shower detection by dense antenna clusters with a complex real-time trigger system. For choosing the optimal procedures for the real-time analysis, we study the dependence between trigger efficiency, count rate, detector hardware and geometry. For this study, we develop a framework for testing various methods of signal detection and noise filtration for arrays with various specifications and the hardware implementation of these methods based on field programmable gate arrays. The framework provides flexible settings for the management of station-level and cluster-level steps of detecting the signal, optimized for the hardware implementation for real-time processing. It includes data-processing tools for the initialconfiguration and tests on pre-recorded data, tools for configuring the trigger architecture andtools for preliminary estimates of the trigger efficiency at given thresholds of cosmic-ray energyand air-shower pulse amplitude. We show examples of the trigger pipeline developed with this framework and discuss the results of tests on simulated data.","PeriodicalId":20473,"journal":{"name":"Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81998712","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: 3

New result of Antideuteron search in BESS-Polar II BESS-Polar II中反氘核搜索的新结果

Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021) Pub Date : 2021-08-09 DOI: 10.22323/1.395.0123

K. Sakai, K. Abe, H. Fuke, S. Haino, T. Hams, M. Hasegawa, K. Kim, M. Lee, Y. Makida, J. Mitchell, J. Nishimura, M. Nozaki, R. Orito, J. Ormes, N. Picot-Clemente, M. Sasaki, E. Seo, R.E. Streltmatter, N. Thakur, A. Yamamoto, T. Yoshida, K. Yoshimura

引用次数: 2

The Trans-Iron Galactic Element Recorder for the International Space Station (TIGERISS) 国际空间站(TIGERISS)的跨铁星系元素记录仪

Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021) Pub Date : 2021-08-09 DOI: 10.22323/1.395.0087

B. Rauch, N. Walsh, W. Zober

{"title":"The Trans-Iron Galactic Element Recorder for the International Space Station (TIGERISS)","authors":"B. Rauch, N. Walsh, W. Zober","doi":"10.22323/1.395.0087","DOIUrl":"https://doi.org/10.22323/1.395.0087","url":null,"abstract":"TIGERISS is an Ultra-Heavy Galactic Cosmic Ray (UHGCR) detector to be proposed to the NASA Astrophysics Pioneers Program capable of measuring the abundance relative to 26Fe of every element from 5B to 82Pb. It is evolved from the LDB TIGER and SuperTIGER balloon instruments and the Heavy-Nuclei Explorer SMEX, and compared to its predecessors, TIGERISS will have a greatly improved capability to definitively identify UHGCR nuclei. This has been demonstrated in component accelerator tests at CERN, including silicon strip detectors in place of scintillators. The geometry factor for TIGERISS is estimated to be from 1.1 to 1.7 m2 sr depending on the ISS attachment point, compared to 0.6 m2 sr for TIGER. Within one-year TIGERISS would observe ∼27 56Ba nuclei, a 20% statistically significant result comparable to the current SuperTIGER data set. Not requiring corrections for atmospheric interactions and scintillator saturation effects the TIGERISS results would be cleaner, and they would also make preliminary measurements to higher charges that will test models for cosmic-ray origins and acceleration. TIGERISS will measure UHGCR nuclei resulting from neutron-capture nucleosynthesis in heavy stars, supernovae, and binary neutron-star mergers and will probe the relative contribution of r-process elements to the cosmic rays.","PeriodicalId":20473,"journal":{"name":"Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75031091","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

Bursty betatron acceleration of electrons at nonstationary quasi-perpendicular shocks 电子在非静止准垂直激波下的爆发性电子加速器加速

Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021) Pub Date : 2021-08-09 DOI: 10.22323/1.395.1344

F. Otsuka, S. Matsukiyo, M. Oka

引用次数: 1

Study of water Cherenkov detector to determine air shower arrival directions with accuracy 水切伦科夫探测器准确确定风淋室到达方向的研究

Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021) Pub Date : 2021-08-09 DOI: 10.22323/1.395.0732

A. Shiomi, Hiroki Nakada, Y. Katayose, M. Ohnishi, T. Sako, K. Hibino

{"title":"Study of water Cherenkov detector to determine air shower arrival directions with accuracy","authors":"A. Shiomi, Hiroki Nakada, Y. Katayose, M. Ohnishi, T. Sako, K. Hibino","doi":"10.22323/1.395.0732","DOIUrl":"https://doi.org/10.22323/1.395.0732","url":null,"abstract":"Several spread TeV gamma-ray sources have been observed in the galaxy by several experimental groups. Experiments with high angular resolution that can detect gamma rays in the 100 TeV region will help study acceleration mechanisms of those gamma-ray sources. In recent years, three groups using extensive air shower arrays have reported detecting gamma rays in the 100 TeV region from astronomical objects in the galaxy. In extensive air shower experiments, an arrival direction of a cosmic ray is determined by estimating a shape of a front surface of an air shower based on a detected secondary particle density distribution and detection time. The density of secondary gamma rays of an air shower is several times that of secondary electrons and positrons in an air shower and the diﬀerence increases as the distance from the shower axis increases. Therefore, secondary gamma-ray measurements are key to determining the arrival direction of the shower. We report the results of investigating the eﬀect of secondary gamma rays on the time determination accuracy of an air shower front using a Monte Carlo simulation. We also report the results of examining diﬀerent detector structures to improve the time resolution using a water Cherenkov detector, which has high detection eﬃciency for secondary gamma rays.","PeriodicalId":20473,"journal":{"name":"Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73536057","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

SuperTIGER Ultra-Heavy Galactic Cosmic Ray Atmospheric Propagation Corrections and Uncertainty Analysis 超级老虎超重银河宇宙射线大气传播修正与不确定度分析

Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021) Pub Date : 2021-08-09 DOI: 10.22323/1.395.0089

B. Rauch, N. Walsh, W. Zober

{"title":"SuperTIGER Ultra-Heavy Galactic Cosmic Ray Atmospheric Propagation Corrections and Uncertainty Analysis","authors":"B. Rauch, N. Walsh, W. Zober","doi":"10.22323/1.395.0089","DOIUrl":"https://doi.org/10.22323/1.395.0089","url":null,"abstract":"The SuperTIGER (Super Trans-Iron Galactic Element Recorder) balloon-borne ultra-heavy galactic cosmic-ray (UHGCR) detector has ﬂown twice in the stratosphere over Antarctica at altitudes up to ∼ 130,000 ft. Corrections for propagating through the last ∼ 0.5% of the atmosphere are based on those developed for the preceding TIGER instrument. Changes due to nuclear interactions are determined by ﬁnding top of the atmosphere (TOA) elemental abundances that yield those measured in the instrument after solving networks of equations for all elements with partial and total charge changing cross sections stepping through ﬁne slabs of material. Varying rates of energy loss in the atmosphere for diﬀerent elements yield diﬀerent TOA minimum energies for the acrylic Cherenkov detector threshold ( ∼ 350 MeV/nuc). TOA abundances corrected for nuclear interactions for each element are scaled with the fraction of the integral energy spectrum for its TOA minimum energy, using the iron spectrum for the UHGCR. Statistical uncertainties are derived at the TOA by shifting the abundance of each element individually up and down by the measured uncertainty in the instrument and calculating the TOA abundance of that element. Systematic uncertainties previously were estimated by simultaneously shifting the partial and then the total cross sections for all elements up and down by their uncertainties and ﬁnding TOA abundances compared to the nominal values. Here we present a Monte Carlo study of the systematic impact of simultaneously randomly varying atmospheric propagation parameters over many trials to ﬁnd the normal range of variation in the resulting TOA element abundances. Total","PeriodicalId":20473,"journal":{"name":"Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82546387","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