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Prediction of energy resolution in the JUNO experiment

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Chinese Physics C 2025年第1期49卷 35-59页

作者： Angel Abusleme Thomas Adam Kai Adamowicz Shakeel Ahmad Rizwan Ahmed Sebastiano Aiello Fengpeng An Qi An Giuseppe Andronico Nikolay Anfimov Vito Antonelli Tatiana Antoshkina Joao Pedro Athayde Marcondes de André Didier Auguste Weidong Bai Nikita Balashov Wander Baldini Andrea Barresi Davide Basilico Eric Baussan Marco Bellato Marco Beretta Antonio Bergnoli Daniel Bick Lukas Bieger Svetlana Biktemerova Thilo Birkenfeld Iwan Blake David Blum Simon Blyth Anastasia Bolshakova Mathieu Bongrand Clément Bordereau Dominique Breton Augusto Brigatti Riccardo Brugnera Riccardo Bruno Antonio Budano Jose Busto Anatael Cabrera Barbara Caccianiga Hao Cai Xiao Cai Yanke Cai Zhiyan Cai Stéphane Callier Steven Calvez Antonio Cammi Agustin Campeny Chuanya Cao Guofu Cao Jun Cao Rossella Caruso Cédric Cerna Vanessa Cerrone Jinfan Chang Yun Chang Auttakit Chatrabhuti Chao Chen Guoming Chen Pingping Chen Shaomin Chen Xin Chen Yiming Chen Yixue Chen Yu Chen Zelin Chen Zhangming Chen Zhiyuan Chen Zikang Chen Jie Cheng Yaping Cheng YuChin Cheng Alexander Chepurnov Alexey Chetverikov Davide Chiesa Pietro Chimenti Yen-Ting Chin Po-Lin Chou Ziliang Chu Artem Chukanov Gérard Claverie Catia Clementi Barbara Clerbaux Marta Colomer Molla Selma Conforti Di Lorenzo Alberto Coppi Daniele Corti Simon Csakli Chenyang Cui Flavio Dal Corso Olivia Dalager Jaydeep Datta Christophe De La Taille Zhi Deng Ziyan Deng Xiaoyu Ding Xuefeng Ding Yayun Ding Bayu Dirgantara Carsten Dittrich Sergey Dmitrievsky Tadeas Dohnal Dmitry Dolzhikov Georgy Donchenko Jianmeng Dong Evgeny Doroshkevich Wei Dou Marcos Dracos Frédéric Druillole Ran Du Shuxian Du Katherine Dugas Stefano Dusini Hongyue Duyang Jessica Eck Timo Enqvist Andrea Fabbri Ulrike Fahrendholz Lei Fan Jian Fang Wenxing Fang Dmitry Fedoseev Li-Cheng Feng Qichun Feng Federico Ferraro Amélie Fournier Fritsch Fritsch Haonan Gan Feng Gao Feng Gao Alberto Garfagnini Arsenii Gavrikov Marco Giammarchi Nunzio Giudice Maxim Gonchar Guanghua Gong Hui Gong Yuri Gornushkin Marco Grassi Maxim Gromov Vasily Gromov Minghao G Yerevan Physics institute YerevanArmenia Université Libre de Bruxelles BrusselsBelgium Universidade Estadual de Londrina LondrinaBrazil Pontificia Universidade Catolica do Rio de Janeiro Rio de JaneiroBrazil Millennium institute for SubAtomic Physics at the High-energy Frontier(SAPHIR) ANIDChile Pontificia Universidad Católica de Chile SantiagoChile Beijing institute of Spacecraft Environment Engineering BeijingChina Beijing Normal University BeijingChina china institute of Atomic Energy BeijingChina institute of High Energy Physics BeijingChina North china Electric power University BeijingChina School of Physics Peking UniversityBeijingChina Tsinghua University BeijingChina University of Chinese Academy of Sciences BeijingChina Jilin University ChangchunChina College of Electronic Science and Engineering National University of Defense TechnologyChangshaChina Chongqing University ChongqingChina Dongguan University of Technology DongguanChina Jinan University GuangzhouChina Sun Yat-sen University GuangzhouChina Harbin institute of Technology HarbinChina University of Science and Technology of china HefeiChina The Radiochemistry and nuclear Chemistry Group in University of South china HengyangChina Wuyi University JiangmenChina Shandong University JinanChinaand Key Laboratory of Particle Physics and Particle Irradiation of Ministry of EducationShandong UniversityQingdaoChina Nanjing University NanjingChina Guangxi University NanningChina East china University of Science and Technology ShanghaiChina School of Physics and Astronomy Shanghai Jiao Tong UniversityShanghaiChina Tsung-Dao Lee institute Shanghai Jiao Tong UniversityShanghaiChina institute of Hydrogeology and Environmental Geology Chinese Academy of Geological SciencesShijiazhuangChina Nankai University TianjinChina Wuhan University WuhanChina Xi'an Jiaotong University Xi'anChina Xiamen University XiamenChina School of Physics and Microelectronics Zhengzhou UniversityZhengzhouChina institute of Physics National

This paper presents an energy resolution study of the JUNO experiment,incorporating the latest knowledge acquired during the detector construction *** determination of neutrino mass ordering in JUNO requires an exceptional energy resolution better than 3% at 1 *** achieve this ambitious goal,significant efforts have been undertaken in the design and production of the key components of the JUNO *** factors affecting the detection of inverse beta decay signals have an impact on the energy resolution,extending beyond the statistical fluctuations of the detected number of photons,such as the properties of the liquid scintillator,performance of photomultiplier tubes,and the energy reconstruction *** account for these effects,a full JUNO simulation and reconstruction approach is *** enables the modeling of all relevant effects and the evaluation of associated inputs to accurately estimate the energy *** results of this study reveal an energy resolution of 2.95% at 1 ***,this study assesses the contribution of major effects to the overall energy resolution *** analysis serves as a reference for interpreting future measurements of energy resolution during JUNO data ***,it provides a guideline for comprehending the energy resolution characteristics of liquid scintillator-based detectors.

关键词： energy resolution liquid scintillator detector JUNO simulation reconstruction

LUMPED PARAMETER NONLINEAR ANALYSIS OF PRESSURE DROP OSCILLATION IN TWO-PHASE FLOW IN EVAPORATOR TUBES

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Journal of Hydrodynamics 1998年第2期10卷 14-20页

作者： Zhou, Yunlong Cheng, Zhuoming Chen, Tingkuanl Chen, Xuejun Northeast china inst of Electric Power Engineering Jilin China

The pressure drop oscillation was analyzed by using a lumped parameter nonlinear model. It is concluded that the instability order ordinary differential equation. The effect of operation conditions on pressure drop oscillation was examined by two dimensionless parameters Ε and η. The result obtained with the model agrees qualitatively with experimental results.

关键词： Evaporators Mathematical models Oscillations Pressure drop Stability

USE THE EQUATIONS OF TOTAL PRESSURE AND VELOCITY TO SOLVE THE VISCOUS INCOMPRESSIBLE FLOW IN THE CHANNEL

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Journal of Hydrodynamics 1993年第1期5卷 63-69页

作者： Jiang, Jinliang Shanghai inst of Electric power Shanghai China

This paper presents a new method to numerically solve the viscous incompress- ible steady flow in a channel with non-uniform section by use of the equations of total pressure and *** method is to solve the equations o... 详细信息

关键词： viscous flow incompressible flow channel with non-uniform section

THE　LINEAR　SEPARATED　FLOW　MODEL　FOR　TWO－PHASI　FLOW　instABILITY　IN　BOILING　CHANNELS

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Journal of Hydrodynamics 1996年第2期8卷 9-16页

作者： Zhou Yun-long Shen Zeng-ming Shi Hui-xian(Northeast china institute of Electric power Engineering, Jilin 132012, P. R. china)Chen Ting-kuan Chen Xue-jun(Xi’an Jiaotong University, Xi’an 710049, P. R. china) Northeast china inst of Electric Power Engineering Jilin China

This paper presents linear separated model describing two-phase now instability. By employing the method of separated model and system control theory, dynamic system characteristic equations of describing two-phase flow instability are *** can be decided system stability depending on the characteristic value of characteristic equations. The calculated results agree well with the experimental data.

关键词： evaporated tube vapor-liquid two-phase flow instability separated Model

NUMERICAL　PREDICTION　OF　THREE　DIMENSIONAL　HIGHLYTURBULENT　FLOW　WITH　FREE　SURFACES

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Journal of Hydrodynamics 1995年第1期7卷 77-84页

作者： Ma, Fuxi North china inst of Water Conservancy and Hydroelectric Power Zhengzhou China

To predict complicated three dimensional flow, a modified K-ε turbulence model is derived. The governing equations of turbulent flow over irregular boundary are developed by analyzing the solid-liquid two- phase theoretical flow model. And a perilal- cell parameter is introduced to treat irregular boundary. It shows curved boundaries and internal obstacles or islands. A simple but powerful method is described that is based on the concept of a fractional volume of fluid (VOF). This method is shown tO be efficient to track complicated free *** shows that the program established can simulate almost all kinds of turbulent flow in hydraulic engineering.

关键词： irregular boundary free surface turbulence.

EFFECTS OF LIQUID QUALITY ON CAVITATION EROSION

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Journal of Hydrodynamics 1992年第2期4卷 87-95页

作者： Zhang, Dong Jin, Tailai Water Conservancy and Hydroelectric Power Research Inst Beijing China

This paper is mainly devoted to conduct a series of vibratory cavitation erosion tests using the magnetostriction apparatus. Distilled water was used as a standard liquid medium for comparison and other liquids were glycerine, kerosene, silicone oil and water containing different concentration glycerine and solid particles, bakerite and fly ash. Experimental results indicate that viscosity of liquid restrains, attenuates and alleviats cavitation erosion. Experiments witness that there exists critical concentration and equivalent concentration. The behaviour of cavitation clouds and the appearance of the pitting were observed. It is helpful to explain the effect of liquid quality on cavitation erosion.

关键词： Cavitation Corrosion Oil Magnetostriction

ISOPARAMETRIC ELEMENT TRANSFORMATION FOR FINITE ANALYTIC METHOD

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Journal of Hydrodynamics 1992年第2期4卷 40-45页

作者： Gao, Zhongxin Water Conservancy and Hydroelectric Power Research Inst Beijing China

Finite analytic method (FAM) is widely used to calculate high Reynolds number flow. However, on complex geometric domain this method must employ boundary-fitted coordinate transformation, which is difficult for some flow regions. In this paper, the isoparametric element was incorporated into the FAM. The flow region was subdivided into a number of small arbitary quadrilaterals and each element was transformed into a square element by the shape functions of isoparametric element. Then, the partial differential equations on the square element can be solved by FAM. Because this transformation is solely local, it is more flexible and convenient than the transformation on the whole domain. To illustrate this transformation, the two-dimensional incompressible viscous flow passing tube bundles has been calculated by this method.

关键词： Finite Element Method Mathematical Techniques Finite Element Method Mathematical Transformations

CAVITATION INCEPTION OF GATE SLOTS

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Journal of Hydrodynamics 1993年第2期5卷 30-44页

作者： Jin, Tailai Lin, Changgeng Liu, Xiaomei inst of Water Conservancy and Hydroelectric Power Research Beijing China

Starting with field investigation this paper presented a comprehensive review of the hydraulic design and performance of gate slots in 85 existing projects covering 158 gates of various dimension and operating head. Systematic model tests were conducted in a water tunnel to optimize the configuration of gate slots. Main parameters affecting cavitation inception were studied, such as the ratio of width to depth, relative offset, the slope of side wall, as well as the radius of curvature of slot's corner. The scale effects of cavitation modelling were preliminarily verified. The conformity between model studies and prototype inspections is quite agreeable. Conclusion and suggestion were made to meet the demand of hydraulic design of gate slots.

关键词： Cavitation Fluid structure interaction Hydraulic gates

THE FRICTIONAL RESISTANCE CHARACTERISTICS OF GAS LIQUID TWO PHASE FLOW IN HELICAL COILED TUBES

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Journal of Hydrodynamics 2000年第4期12卷 16-19页

作者： Zhou Yun long, Shi Hui xian Department of Thermal power, Northeast china institute of Electric power Engineering, Jilin 132012, P.R.china (Received Oct. 28, 1999) Dep. of Thermal power Northeast Inst. of Power Eng. Jilin 132012 China

This paper deal with the frictional resistance characteristics of gas liquid two phase flow in vertical upward helical coiled tubes under the system pressure 0.1 0.6MPa. By means of dimension analysis and π theorem, the correlation formulas were obtained for calculating the frictional resistance coefficients of gas liquid two phase flow in helical coiled tubes. The calculated results agree well with the experimental results.

关键词： frictional resistance gas liquid two phase flow helical coiled tubed