arXiv - PHYS - Instrumentation and Detectors最新文献

{"title":"A Bi-polar Current Source with High Short-term Stability for Tsinghua Tabletop Kibble Balance","authors":"Kang Ma, Xiaohu Liu, Wei Zhao, Songling Huang, Shisong Li","doi":"arxiv-2408.16405","DOIUrl":"https://doi.org/arxiv-2408.16405","url":null,"abstract":"A high-precision current source, capable of supporting weighing measurements\u0000with a relative uncertainty at the $10^{-9}$ level, is essential for Kibble\u0000balance experiments. However, most current sources utilized in Kibble balances\u0000to date are homemade and not commercially available. In this paper, we\u0000introduce a digital-feedback, two-stage current source designed for the\u0000Tsinghua tabletop Kibble balance, relying solely on commercially available\u0000sources and voltmeters. A high-resolution, small-range current source is\u0000employed to digitally compensate for current output fluctuations from a\u0000large-range current source. Experimental tests show the proposal can offer an\u0000easy realization of a current source with nA/A stability to support Kibble\u0000balance measurements.","PeriodicalId":501374,"journal":{"name":"arXiv - PHYS - Instrumentation and Detectors","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213808","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}

{"title":"Li$_2$MnCl$_4$ single crystal: new candidate for red-emitting neutron scintillator","authors":"Vojtech Vanecek, Robert Kral, Katerina Krehlikova, Romana Kuverkova, Vladimir Babin, Petra Zemenova, Jan Rohlicek, Zuzana Malkova, Terezia Jurkovicova, Martin Nikl","doi":"arxiv-2408.16178","DOIUrl":"https://doi.org/arxiv-2408.16178","url":null,"abstract":"Novel red-emitting scintillator Li$_2$MnCl$_4$ is proposed as a candidate for\u0000thermal neutron detection. It features high Li content, low density, low\u0000effective atomic number, and emission in red-NIR region. These characteristics\u0000make it an interesting candidate for long distance neutron detection in harsh\u0000enviroments e. g. decomisioning of nuclear powerplants. The absorption spectrum\u0000is thoroughly investigated in the scope of Tanabe-Sugano diagram. Luminescence\u0000mechanism in the undoped Li$_2$MnCl$_4$ is studied in depth. Doping by\u0000Eu$^{2+}$ and Ce$^{3+}$ is introduced as a trial to improve the scintillation\u0000efficiency. We show in the Eu$^{2+}$ and Ce$^{3+}$ doped Li$_2$MnCl$_4$ that\u0000luminescence mechanism involves energy transfer from the dopants to Mn$^{2+}$,\u0000and propose the local lattice distortion around the dopant and a possible\u0000charge compensation mechanisms.","PeriodicalId":501374,"journal":{"name":"arXiv - PHYS - Instrumentation and Detectors","volume":"117 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213812","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}

{"title":"Electron Scattering at the Intensity Frontier with SoLID","authors":"Zein-Eddine Meziani","doi":"arxiv-2408.16037","DOIUrl":"https://doi.org/arxiv-2408.16037","url":null,"abstract":"The Solenoidal Large Intensity Device (SoLID) is a large acceptance\u0000spectrometer capable of operating at the luminosity frontier. It is proposed to\u0000fully exploit the scientific potential of the continuous electron beam\u0000accelerator facility (CEBAF) 12 GeV energy upgrade at Jefferson Lab. Its\u0000conceptual design is mature, having passed multiple reviews and been validated\u0000by a successful pre-R&D phase. The envisioned scientific program consists of\u0000three avenues of research, namely the 3D momentum imaging of the structure of\u0000the nucleon, the origin of the proton mass through the gluonic gravitational\u0000form factors (GFFs), and the search of physics beyond the standard model of\u0000particle physics. These avenues are complemented by a growing supplemental list\u0000of run group experiments that address a variety of important topics.","PeriodicalId":501374,"journal":{"name":"arXiv - PHYS - Instrumentation and Detectors","volume":"71 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213809","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}

{"title":"DWR-Drag: A new generation software for the Double Wall-Ring Interfacial Shear Rheometer's data analysis","authors":"P. Sanchez-Puga, Miguel A. Rubio","doi":"arxiv-2408.15755","DOIUrl":"https://doi.org/arxiv-2408.15755","url":null,"abstract":"The double wall-ring (DWR) rotational configuration is nowadays the\u0000instrument of choice regarding interfacial shear rheometers (ISR) in rotational\u0000configurations. Complex numerical schemes must be used in the analysis of the\u0000output data in order to appropriately deal with the coupling between\u0000interfacial and bulk fluid flows, and to separate viscous and elastic\u0000contribution or the interfacial response. We present a second generation code\u0000for analyzing the interfacial shear rheology experimental results of small\u0000amplitude oscillatory measurements made with a DWR rotational rheometer. The\u0000package presented here improves significantly the accuracy and applicability\u0000range of the previous available software packages by implementing: i) a\u0000physically motivated iterative scheme based on the probe's equation of motion,\u0000ii) an increased user selectable spatial resolution, and iii) a second order\u0000approximation for the velocity gradients at the ring surfaces. Moreover, the\u0000optimization of the computational effort allows, in many cases, for on-the-fly\u0000execution during data acquisition in real experiments.","PeriodicalId":501374,"journal":{"name":"arXiv - PHYS - Instrumentation and Detectors","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142226924","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}

{"title":"Infrared thermal imaging camera to measure low temperature thermal fields","authors":"E. GordiyenkoB.Verkin Institute for Low Temperature Physics and Engineering NAS of Ukraine, Yu. FomenkoB.Verkin Institute for Low Temperature Physics and Engineering NAS of Ukraine, G. ShustakovaB.Verkin Institute for Low Temperature Physics and Engineering NAS of Ukraine, G. KovalovInstitute for Problems of Cryobiology and Cryomedicine NAS of Ukraine, S. ShevchenkoB.Verkin Institute for Low Temperature Physics and Engineering NAS of Ukraine","doi":"arxiv-2408.16165","DOIUrl":"https://doi.org/arxiv-2408.16165","url":null,"abstract":"To measure low-temperature thermal fields, we have developed a single-element\u0000cooled thermal imaging camera for a spectral range of 8{div}14 {mu}m with an\u0000internal shutter for radiometric calibration. To improve the accuracy of\u0000measuring the temperature of cold objects, we used a shutter with a combined\u0000emissivity as an internal reference source of radiation at the input of the\u0000device optical unit. With this aim a small mirror was fixed in the center on\u0000its surface covered black, thereby ensuring an efficient reflection of\u0000radiation in a wide spectral range of wavelengths. When processing the signal\u0000for each pixel of the thermal image, the differential value of the detector\u0000response to the shutter blackened and mirror areas was used as a reference. A\u0000relative measurement error of 3 percent was obtained for the studied objects\u0000with a temperature of -150 {deg}C. The device was successfully used for remote\u0000study of thermal field dynamics during freeze-thawing of biological tissues in\u0000vivo.","PeriodicalId":501374,"journal":{"name":"arXiv - PHYS - Instrumentation and Detectors","volume":"150 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213810","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}

{"title":"A roadmap for neutrino detection at LHC, HL-LHC and SPS","authors":"Elena Graverini","doi":"arxiv-2408.15851","DOIUrl":"https://doi.org/arxiv-2408.15851","url":null,"abstract":"SND@LHC is a new detector for neutrino physics at LHC. Its experimental\u0000configuration makes it possible to distinguish between all three neutrino\u0000flavours, opening a unique opportunity to probe physics of heavy flavour\u0000production at the LHC in the region that is not accessible to ATLAS, CMS and\u0000LHCb. It can also explore lepton flavour universality in the neutral sector,\u0000and search for feebly interacting particles. The detector has been commissioned\u0000and installed in 2021-2022. A first set of data has since then been collected,\u0000providing the first observation of neutrinos produced at a collider. This paper\u0000discusses the detector technologies being used to study high-energy neutrinos\u0000at the LHC, and their performance in terms of physics reach. The necessary\u0000upgrades to operate at high-luminosity LHC are presented, as well as a proposed\u0000experiment to perform neutrino measurements at the newly approved Beam Dump\u0000Facility.","PeriodicalId":501374,"journal":{"name":"arXiv - PHYS - Instrumentation and Detectors","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142226873","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}

{"title":"Vertex Imaging Hadron Calorimetry Using AI/ML Tools","authors":"N. Akchurin, J. Cash, J. Damgov, X. Delashaw, K. Lamichhane, M. Harris, M. Kelley, S. Kunori, H. Mergate-Cacace, T. Peltola, O. Schneider, J. Sewell","doi":"arxiv-2408.15385","DOIUrl":"https://doi.org/arxiv-2408.15385","url":null,"abstract":"The fluctuations in energy loss to processes that do not generate measurable\u0000signals, such as binding energy losses, set the limit on achievable hadronic\u0000energy resolution in traditional energy reconstruction techniques. The\u0000correlation between the number of hadronic interaction vertices in a shower and\u0000invisible energy is found to be strong and is used to estimate invisible energy\u0000fraction in highly granular calorimeters in short time intervals (<10 ns). We\u0000simulated images of hadronic showers using GEANT4 and deployed a neural network\u0000to analyze the images for energy regression. The neural network-based approach\u0000results in significant improvement in energy resolution, from 13 % to 4 % in\u0000the case of a Cherenkov calorimeter for 100 GeV pion showers. We discuss the\u0000significance of the phenomena responsible for this improvement and the plans\u0000for experimental verification of these results and further development.","PeriodicalId":501374,"journal":{"name":"arXiv - PHYS - Instrumentation and Detectors","volume":"95 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213813","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}

{"title":"High-granularity Dual-readout Calorimeter: Evolution of a Classic Prototype","authors":"N. Akchurin, J. Cash, J. Damgov, X. Delashaw, K. Lamichhane, M. Harris, M. Kelley, S. Kunori, H. Mergate-Cacace, T. Peltola, O. Schneider, J. Sewell","doi":"arxiv-2408.15430","DOIUrl":"https://doi.org/arxiv-2408.15430","url":null,"abstract":"The original dual-readout calorimeter prototype (DREAM), constructed two\u0000decades ago, has proven instrumental in advancing our understanding of\u0000calorimetry. It has facilitated a multitude of breakthroughs by leveraging\u0000signals from complementary media (Cherenkov and scintillation) to capture\u0000fluctuations in electromagnetic energy fraction within hadronic showers. Over\u0000the years, extensive studies have shed light on the performance characteristics\u0000of this module, rendering it exceptionally well-understood. Drawing on this\u0000wealth of experience, we have embarked on enhancing the detectors' capabilities\u0000further by integrating fast silicon photomultipliers (SiPMs) with finer\u0000transverse segmentation, $sim$1 cm$^2$, as well as longitudinal segmentation\u0000by timing measuring better than 10 cm. This configuration will allow us to\u0000image hadronic showers with high granularity (HG-DREAM). We argue that the\u0000spatial information provided by such a granular detector in a short time window\u0000($approx$5 ns) leads to substantial enhancement in energy resolution when\u0000advanced neural networks are employed in energy reconstruction. We briefly\u0000present the current status of work, new concepts that have been introduced to\u0000the detector, and expectations from simulations.","PeriodicalId":501374,"journal":{"name":"arXiv - PHYS - Instrumentation and Detectors","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142226872","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}

{"title":"Analysis of critical points of the In-Vessel Retention safety evaluation","authors":"Laure CaréniniIRSN/PSN-RES/SAM/LEPC, Florian FichotIRSN/PSN-RES/SAM/LEPC","doi":"arxiv-2408.15290","DOIUrl":"https://doi.org/arxiv-2408.15290","url":null,"abstract":"In-Vessel Retention (IVR) strategy for nuclear reactors in case of a Severe\u0000Accident (SA) intends to stabilize and retain the corium in the vessel by using\u0000the vessel wall as a heat exchanger with an external water loop. This strategy\u0000relies on simple actions to be passively taken as soon as SA signal is raised:\u0000vessel depressurization and reactor pit flooding. Then, the strategy is\u0000successful if the vessel keeps it integrity, which means that the heat flux\u0000coming from the corium pool does not exceed the cooling capacity of the\u0000External Reactor Vessel Cooling (ERVC) at each location along the vessel wall\u0000(no vessel melt-through) and the ablated vessel wall is mechanically resistant.\u0000The main uncertainties in this IVR safety evaluation are associated to the\u0000thermal load applied from the corium pool to the vessel wall and the resulting\u0000minimum vessel thickness after ablation. Indeed, the heat fluxes distribution\u0000along the vessel wall is directly dependent on the corium stratification which\u0000occurs as aresult of thermochemical interactions in the pool: when liquid steel\u0000is mixed with UO2 and partially oxidized Zr coming from the degradation of the\u0000fuel and claddings, there is a phase separation between oxide and metal phases\u0000due to a gap of miscibility. The primordial impact of the corium behaviour in\u0000the lower plenum of the reactor vessel on the IVR safety evaluation was clearly\u0000highlighted in the Phenomena Identification Ranking Table (PIRT) on IVR\u0000performed in the frame of the European IVMR (In-Vessel Melt Retention) project\u0000(Fichot et al., 2019). As a result, the focus is made in this paper on the\u0000critical points which impact the value of the minimum vessel thickness\u0000orequivalently the maximum heat flux reached at the outer surface of the vessel\u0000wall. Efficiency of the ERVC and mechanical resistance of the vessel wall are\u0000consequently not discussed here.The main objective is to identify the generic\u0000critical situations leading to an excessive heat flux to the vessel wall and\u0000the investigation of possible means to avoid them. In this perspective, the\u0000calculations of IVR strategy done by the project partners for different reactor\u0000designs and accident scenarios were used as a database to identify and\u0000understand the occurrence of critical configurations with excessive heat flux\u0000to the vessel wall. The results of 25 sequences are used, which correspond to 9\u0000different reactor designs: a generic PWR 900MWe, a PWR 1100MWe with heavy\u0000reflector, a generic PWR 1300MWe, a generic Konvoi 1300MWe, a generic German\u0000BWR69, aNordic BWR, a BWR-5 Mark II, a VVER1000 and a VVER440/v213. In\u0000addition, different SA integral codes (ASTEC, ATHLET-CD, MAAP -combined with\u0000MAAP_EDF and PROCOR codes for simulation of lower plenum behavior-, MELCOR and\u0000RELAP/SCDAPSIM codes) are used.","PeriodicalId":501374,"journal":{"name":"arXiv - PHYS - Instrumentation and Detectors","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213838","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}

{"title":"Lowering threshold of NaI(Tl) scintillator to 0.7 keV in the COSINE-100 experiment","authors":"G. H. Yu, N. Carlin, J. Y. Cho, J. J. Choi, S. Choi, A. C. Ezeribe, L. E. França, C. Ha, I. S. Hahn, S. J. Hollick, E. J. Jeon, H. W. Joo, W. G. Kang, M. Kauer, B. H. Kim, H. J. Kim, J. Kim, K. W. Kim, S. H. Kim, S. K. Kim, W. K. Kim, Y. D. Kim, Y. H. Kim, Y. J. Ko, D. H. Lee, E. K. Lee, H. Lee, H. S. Lee, H. Y. Lee, I. S. Lee, J. Lee, J. Y. Lee, M. H. Lee, S. H. Lee, S. M. Lee, Y. J. Lee, D. S. Leonard, N. T. Luan, V. H. A. Machado, B. B. Manzato, R. H. Maruyama, R. J. Neal, S. L. Olsen, B. J. Park, H. K. Park, H. S. Park, J. C. Park, K. S. Park, S. D. Park, R. L. C. Pitta, H. Prihtiadi, S. J. Ra, C. Rott, K. A. Shin, D. F. F. S. Cavalcante, M. K. Son, N. J. C. Spooner, L. T. Truc, L. Yang","doi":"arxiv-2408.14688","DOIUrl":"https://doi.org/arxiv-2408.14688","url":null,"abstract":"COSINE-100 is a direct dark matter search experiment, with the primary goal\u0000of testing the annual modulation signal observed by DAMA/LIBRA, using the same\u0000target material, NaI(Tl). In previous analyses, we achieved the same 1 keV\u0000energy threshold used in the DAMA/LIBRA's analysis that reported an annual\u0000modulation signal with 11.6$sigma$ significance. In this article, we report an\u0000improved analysis that lowered the threshold to 0.7 keV, thanks to the\u0000application of Multi-Layer Perception network and a new likelihood parameter\u0000with waveforms in the frequency domain. The lower threshold would enable a\u0000better comparison of COSINE-100 with new DAMA results with a 0.75 keV threshold\u0000and account for differences in quenching factors. Furthermore the lower\u0000threshold can enhance COSINE-100's sensitivity to sub-GeV dark matter searches.","PeriodicalId":501374,"journal":{"name":"arXiv - PHYS - Instrumentation and Detectors","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213814","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}