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中国血吸虫病防治杂志 2004年第5期16卷 338-342,F002页

作者：魏望远朱诗好甘明辉吕功良刘兆春石孟芝阳桂芬文书林湖南省血吸虫病防治研究所岳阳414000 湖南省水利厅洞庭湖工程管理局湖南省血吸虫病防治办公室湖南省岳阳市君山区钱粮湖血吸虫病防治院

目的　研究护堤隔离沟改造钉螺孳生环境 ,消灭钉螺的效果。方法　以有隔离沟洲滩为试验组 ,无隔离沟洲滩为对照组。在两组外洲钉螺分布高程设置网箱 ,人工投活螺 ,比较钉螺产卵数量、幼螺生长发育状况、钉螺自然死亡率和感染螺密度 ,测... 详细信息

目的　研究护堤隔离沟改造钉螺孳生环境 ,消灭钉螺的效果。方法　以有隔离沟洲滩为试验组 ,无隔离沟洲滩为对照组。在两组外洲钉螺分布高程设置网箱 ,人工投活螺 ,比较钉螺产卵数量、幼螺生长发育状况、钉螺自然死亡率和感染螺密度 ,测量隔离沟区域洲土含水量 ,调查隔离沟沉积层各年间钙化螺密度。结果　试验组外洲无钉螺孳生。当东洞庭湖水位退至 2 5 m左右 ,对照组钉螺分布带洲土平均含水量 38.1% ,高于试验组 2 8.3% ;人工投活螺后对照组产卵数高于试验组 ;试验组幼螺出现率显著低于对照组和室内模拟现场。春季网箱外湖水中捞幼螺数 ,试验组显著低于对照组 ;网箱内秋季查螺 ,试验组钉螺自然死亡率 (77.92 % )显著高于对照组 (4 1.6 7% ) ;隔离沟淤积层内钙化螺筛洗 ,上层显著低于中层 ,中层又低于底层。莫河铺外洲对照组网箱内活螺密度、感染螺密度显著高于试验组。对照组外洲高杆植被生长茂盛 ,试验组外洲无高杆植被。结论　洞庭湖退水期间 ,植被被淹死 ,气温较高 ,隔离沟能迅速沥干洲土积水 ,改变了洲滩潮湿的环境。

关键词：隔离沟改造钉螺控制

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Feasibility and physics potential of detecting ^(8)B solar neutrinos at JuNO

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Chinese Physics C 2021年第2期45卷 93-110页

作者： Angel Abusleme Thomas Adam shakeel Ahmad sebastiano Aiello muhammad Akram Nawab Ali Fengpeng An Guangpeng An Qi An Giuseppe Andronico Nikolay Anfimov Vito Antonelli Tatiana Antoshkina Burin Asavapibhop João Pedro Athayde marcondes de André Didier Auguste Andrej Babic Wander Baldini Andrea Barresi Eric Baussan marco Bellato Antonio Bergnoli Enrico Bernieri David Biare Thilo Birkenfeld sylvie Blin David Blum simon Blyth Anastasia Bolshakova mathieu Bongrand Clément Bordereau Dominique Breton Augusto Brigatti Riccardo Brugnera Riccardo Bruno Antonio Budano max Buesken mario Buscemi Jose Busto Ilya Butorov Anatael Cabrera Hao Cai Xiao Cai Yanke Cai Zhiyan Cai Antonio Cammi Agustin Campeny Chuanya Cao Guofu Cao Jun Cao Rossella Caruso Cédric Cerna Jinfan Chang Yun Chang Pingping Chen Po-An Chen shaomin Chen shenjian Chen Xurong Chen Yi-Wen Chen Yixue Chen Yu Chen Zhang Chen Jie Cheng Yaping Cheng Alexander Chepurnov Davide Chiesa Pietro Chimenti Artem Chukanov Anna Chuvashova Gérard Claverie Catia Clementi Barbara Clerbaux selma Conforti Di Lorenzo Daniele Corti salvatore Costa Flavio Dal Corso Christophe De La Taille Jiawei Deng Zhi Deng Ziyan Deng Wilfried Depnering marco Diaz Xuefeng Ding Yayun Ding Bayu Dirgantara sergey Dmitrievsky Tadeas Dohnal Georgy Donchenko Jianmeng Dong Damien Dornic Evgeny Doroshkevich marcos Dracos Frédéric Druillole shuxian Du stefano Dusini martin Dvorak Timo Enqvist Heike Enzmann Andrea Fabbri Lukas Fajt Donghua Fan Lei Fan Can Fang Jian Fang marco Fargetta Anna Fatkina Dmitry Fedoseev Vladko Fekete Li-Cheng Feng Qichun Feng Richard Ford Andrey Formozov Amélie Fournier Haonan Gan Feng Gao Alberto Garfagnini Alexandre Göttel Christoph Genster marco Giammarchi Agnese Giaz Nunzio Giudice Franco Giuliani maxim Gonchar Guanghua Gong Hui Gong Oleg Gorchakov Yuri Gornushkin marco Grassi Christian Grewing maxim Gromov Vasily Gromov minghao Gu Xiaofei Gu Yu Gu mengyun Guan Nunzio Guardone maria Gul Cong Guo Jingyuan Guo Wanlei Guo Xinheng Guo Yuhang Guo Paul Hackspacher Caren Hagner Ran Han Yan Yerevan Physics Institute YerevanArmenia universitéLibre de Bruxelles BrusselsBelgium universidade Estadual de Londrina LondrinaBrazil Pontificia universidade Catolica do Rio de Janeiro RioBrazil Pontificia universidad Católica de Chile SantiagoChile universidad Tecnica Federico santa maria ValparaisoChile 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 JinanChina Institute of modern Physics Chinese Academy of SciencesLanzhouChina 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 Chiao-Tung university Hsinchu National united university Miao-Li Department of Physics National T

The Jiangmen underground Neutrino Observatory(JuNO)features a 20 kt multi-purpose underground liquid scintillator sphere as its main *** of JuNO's features make it an excellent location for^8B solar neutrino measurements,such as its low-energy threshold,high energy resolution compared with water Cherenkov detectors,and much larger target mass compared with previous liquid scintillator *** this paper,we present a comprehensive assessment of JuNO's potential for detecting^8B solar neutrinos via the neutrino-electron elastic scattering process.A reduced 2 meV threshold for the recoil electron energy is found to be achievable,assuming that the intrinsic radioactive background^(238)u and^(232)Th in the liquid scintillator can be controlled to 10^(-17)g/*** ten years of data acquisition,approximately 60,000 signal and 30,000 background events are *** large sample will enable an examination of the distortion of the recoil electron spectrum that is dominated by the neutrino flavor transformation in the dense solar matter,which will shed new light on the inconsistency between the measured electron spectra and the predictions of the standard three-flavor neutrino oscillation *** m^(2)_(21)=4.8times10^(-5);(7.5times10^(-5))eV^(2),JuNO can provide evidence of neutrino oscillation in the Earth at approximately the 3sigma(2sigma)level by measuring the non-zero signal rate variation with respect to the solar zenith ***,JuNO can simultaneously measureDelta m^2_(21)using^8B solar neutrinos to a precision of 20% or better,depending on the central value,and to sub-percent precision using reactor antineutrinos.A comparison of these two measurements from the same detector will help understand the current mild inconsistency between the value of Delta m^2_(21)reported by solar neutrino experiments and the KamLAND experiment.

关键词： neutrino oscillation solar neutrino JuNO

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