Abstract

The OSIRIS detector is a subsystem of the liquid scintillator filling chain of the JUNO reactor neutrino experiment. Its purpose is to validate the radiopurity of the scintillator to assure that all components of the JUNO scintillator system work to specifications and only neutrino-grade scintillator is filled into the JUNO Central Detector. The aspired sensitivity level of 10⁻¹⁶ g/g of ²³⁸U and ²³²Th requires a large (∼20m³) detection volume and ultralow background levels. The present paper reports on the design and major components of the OSIRIS detector, the detector simulation as well as the measuring strategies foreseen and the sensitivity levels to U/Th that can be reached in this setup.

JUNO Collaboration

Abusleme, Angel1, Adam, Thomas2, Ahmad, Shakeel3, Ahmed, Rizwan3, Aiello, Sebastiano4, 5, Akram, Muhammad3, An, Fengpeng6, An, Guangpeng7, An, Qi8, Andronico, Giuseppe4, 5, Anfimov, Nikolay9, Antonelli, Vito10, 11, Antoshkina, Tatiana9, Asavapibhop, Burin12, de Andre, Joao Pedro Athayde Marcondes2, Auguste, Didier13, Babic, Andrej14, Baldini, Wander15, 16, Barresi, Andrea17, 18, Basilico, Davide10, 11, Baussan, Eric2, Bellato, Marco19, Bergnoli, Antonio19, Birkenfeld, Thilo20, Blin, Sylvie13, Blum, David21, Blyth, Simon22, Bolshakova, Anastasia9, Bongrand, Mathieu23, Bordereau, Clement22, 24, Breton, Dominique13, Brigatti, Augusto10, 11, Brugnera, Riccardo19, 25, Bruno, Riccardo4, 5, Budano, Antonio26, 27, Buscemi, Mario4, 5, Busto, Jose28, Butorov, Ilya9, Cabrera, Anatael13, Cai, Hao29, Cai, Xiao7, Cai, Yanke7, Cai, Zhiyan7, Cammi, Antonio17, 30, Campeny, Agustin1, Cao, Chuanya7, Cao, Guofu7, Cao, Jun7, Caruso, Rossella4, 5, Cerna, Cedric24, Chang, Jinfan7, Chang, Yun31, Chen, Ping-ping32, Chen, Po-An22, Chen, Shaomin33, Chen, Xurong34, Chen, Yi-Wen35, Chen, Yixue36, Chen, Yu37, Chen, Zhang7, Cheng, Jie7, Cheng, Yaping38, Chetverikov, Alexey9, Chiesa, Davide17, 18, Chimenti, Pietro39, Chukanov, Artem9, Claverie, Gerard24, Clementi, Catia40, 41, Clerbaux, Barbara42, Di Lorenzo, Selma Conforti13, Corti, Daniele19, Costa, Salvatore4, 5, Dal Corso, Flavio19, Dalager, Olivia43, De La Taille, Christophe13, Deng, Jiawei29, Deng, Zhi33, Deng, Ziyan7, Depnering, Wilfried44, 45, Diaz, Marco1, Ding, Xuefeng10, 11, Ding, Yayun7, Dirgantara, Bayu46, Dmitrievsky, Sergey9, Dohnal, Tadeas47, Dolzhikov, Dmitry9, Donchenko, Georgy48, Dong, Jianmeng33, Doroshkevich, Evgeny49, Dracos, Marcos2, Druillole, Frederic24, Du, Shuxian50, Dusini, Stefano19, Dvorak, Martin47, Enqvist, Timo51, Enzmann, Heike44, 45, Fabbri, Andrea26, 27, Fajt, Lukas14, Fan, Donghua52, Fan, Lei7, Fang, Can53, Fang, Jian7, Fang, Wenxing7, Fargetta, Marco4, 5, Fedoseev, Dmitry9, Fekete, Vladko14, Feng, Li-Cheng35, Feng, Qichun54, Ford, Richard10, 11, Formozov, Andrey10, 11, Fournier, Amelie24, Gan, Haonan55, Gao, Feng20, Garfagnini, Alberto19, 25, Genster, Christoph56, Giammarchi, Marco10, 11, Giaz, Agnese19, 25, Giudice, Nunzio4, 5, Gonchar, Maxim9, Gong, Guanghua33, Gong, Hui33, Gornushkin, Yuri9, Gottel, Alexandre20, 56, Grassi, Marco19, 25, Grewing, Christian57, Gromov, Vasily9, Gu, Minghao7, Gu, Xiaofei50, Gu, Yu58, Guan, Mengyun7, Guardone, Nunzio4, 5, Gul, Maria3, Guo, Cong7, Guo, Jingyuan37, Guo, Wanlei7, Guo, Xinheng59, Guo, Yuhang60, 56, Hackspacher, Paul44, 45, Hagner, Caren61, Han, Ran38, Han, Yang13, Hassan, Muhammad Sohaib3, He, Miao7, He, Wei7, Heinz, Tobias21, Hellmuth, Patrick24, Heng, Yuekun7, Herrera, Rafael1, Hong, Daojin53, Hor, YuenKeung37, Hou, Shao-jing7, Hsiung, Yee22, Hu, Bei-Zhen22, Hu, Hang37, Hu, Jianrun7, Hu, Jun7, Hu, Shouyang62, Hu, Tao7, Hu, Zhuojun37, Huang, Chunhao37, Huang, Guihong7, Huang, Hanxiong62, Huang, Wenhao63, 64, Huang, Xin7, 63, 64, Huang, Xingtao63, 64, Huang, Yongbo53, Hui, Jiaqi65, Huo, Lei54, Huo, Wenju8, Huss, Cedric24, Hussain, Safeer3, Ioannisian, Ara66, Isocrate, Roberto19, Jelmini, Beatrice19, 25, Jen, Kuo-Lun35, Jeria, Ignacio1, Ji, Xiaolu7, Ji, Xingzhao37, Jia, Huihui67, Jia, Junji29, Jian, Siyu62, Jiang, Di8, Jiang, Xiaoshan7, Jin, Ruyi7, Jing, Xiaoping7, Jollet, Cecile24, Joutsenvaara, Jari51, Jungthawan, Sirichok46, Kalousis, Leonidas2, Kampmann, Philipp56, Kang, Li32, Karagounis, Michael57, Kazarian, Narine66, Khan, Waseem60, Khosonthongkee, Khanchai46, Korablev, Denis9, Kouzakov, Konstantin48, Krasnoperov, Alexey9, Kruth, Andre57, Kutovskiy, Nikolay9, Kuusiniemi, Pasi51, Lachenmaier, Tobias21, Landini, Cecilia10, 11, Leblanc, Sebastien24, Lebrin, Victor23, Lefevre, Frederic23, Lei, Ruiting32, Leitner, Rupert47, Leung, Jason35, Li, Demin50, Li, Fei7, Li, Fule33, Li, Haitao37, Li, Huiling7, Li, Jiaqi37, Li, Mengzhao7, Li, Min36, Li, Nan7, 68, Li, Nan7, 68, Li, Qingjiang68, Li, Ruhui7, Li, Shanfeng32, Li, Tao37, Li, Weidong7, 69, Li, Weiguo7, Li, Xiaomei62, Li, Xiaonan7, Li, Xing-long62, Li, Yi32, Li, Yufeng7, Li, Zhaohan7, Li, Zhibing37, Li, Ziyuan37, Liang, Hao62, 8, Liang, Hao62, 8, Liang, Jingjing53, Liao, Jiajun37, Liebau, Daniel57, Limphirat, Ayut46, Limpijumnong, Sukit46, Lin, Guey-Lin35, Lin, Shengxin32, Lin, Tao7, Ling, Jiajie37, Lippi, Ivano19, Liu, Fang36, Liu, Haidong50, Liu, Hongbang53, Liu, Hongjuan70, Liu, Hongtao37, Liu, Hui58, Liu, Jianglai65, 71, Liu, Jinchang7, Liu, Min70, Liu, Qian69, Liu, Qin8, Liu, Runxuan20, 56, Liu, Shuangyu7, Liu, Shubin8, Liu, Shulin7, Liu, Xiaowei37, Liu, Xiwen53, Liu, Yan7, Liu, Yunzhe7, Lokhov, Alexey49, 48, Lombardi, Paolo10, 11, Lombardo, Claudio4, 5, Loo, Kai44, 45, Lu, Chuan55, Lu, Haoqi7, Lu, Jingbin72, Lu, Junguang7, Lu, Shuxiang50, Lu, Xiaoxu7, Lubsandorzhiev, Bayarto49, Lubsandorzhiev, Sultim49, Ludhova, Livia20, 56, Luo, Fengjiao7, Luo, Guang37, Luo, Pengwei37, Luo, Shu73, Luo, Wuming7, Lyashuk, Vladimir49, Ma, Bangzheng63, 64, Ma, Qiumei7, Ma, Si7, Ma, Xiaoyan7, Ma, Xubo36, Maalmi, Jihane13, Malyshkin, Yury9, Mantovani, Fabio15, 16, Manzali, Francesco19, 25, Mao, Xin38, Mao, Yajun74, Mari, Stefano M.26, 27, Marini, Filippo19, 25, Marium, Sadia3, Martellini, Cristina26, 27, Martin-Chassard, Gisele13, Martini, Agnese75, Mayilyan, Davit66, Mednieks, Ints76, Meng, Yue65, Meregaglia, Anselmo24, Meroni, Emanuela10, 11, Meyhofer, David61, Mezzetto, Mauro19, Miller, Jonathan77, Miramonti, Lino10, 11, Montini, Paolo26, 27, Montuschi, Michele15, 16, Muller, Axel21, Muralidharan, Pavithra57, Nastasi, Massimiliano17, 18, Naumov, Dmitry, V9, Naumova, Elena9, Navas-Nicolas, Diana13, Nemchenok, Igor9, Minh Thuan Nguyen Thi35, Ning, Feipeng7, Ning, Zhe7, Nunokawa, Hiroshi78, Oberauer, Lothar79, Ochoa-Ricoux, Juan Pedro1, 43, Olshevskiy, Alexander9, Orestano, Domizia26, 27, Ortica, Fausto40, 41, Othegraven, Rainer44, 45, Pan, Hsiao-Ru22, Paoloni, Alessandro75, Parkalian, Nina57, Parmeggiano, Sergio10, 11, Pei, Yatian7, Pelliccia, Nicomede40, 41, Peng, Anguo70, Peng, Haiping8, Perrot, Frederic24, Petitjean, Pierre-Alexandre42, Petrucci, Fabrizio26, 27, Pilarczyk, Oliver44, 45, Rico, Luis Felipe Pineres2, Popov, Artyom48, Poussot, Pascal2, Pratumwan, Wathan46, Previtali, Ezio17, 18, Qi, Fazhi7, Qi, Ming80, Qian, Sen7, Qian, Xiaohui7, Qian, Zhen37, Qiao, Hao74, Qin, Zhonghua7, Qiu, Shoukang70, Rajput, Muhammad Usman3, Ranucci, Gioacchino10, 11, Raper, Neill37, Re, Alessandra10, 11, Rebber, Henning61, Rebii, Abdel24, Ren, Bin32, Ren, Jie62, Ricci, Barbara15, 16, Robens, Markus57, Roche, Mathieu24, Rodphai, Narongkiat12, Romani, Aldo40, 41, Roth, Christian57, Ruan, Xiangdong53, Ruan, Xichao62, Rujirawat, Saroj46, Rybnikov, Arseniy9, Sadovsky, Andrey9, Saggese, Paolo10, 11, Sanfilippo, Simone26, 27, Sangka, Anut81, Sanguansak, Nuanwan46, Sawangwit, Utane81, Sawatzki, Julia79, Sawy, Fatma19, 25, Schever, Michaela20, 56, Schwab, Cedric2, Schweizer, Konstantin79, Selyunin, Alexandr9, Serafini, Andrea15, 16, Settanta, Giulio56, Settimo, Mariangela23, Shao, Zhuang60, Sharov, Vladislav9, Shaydurova, Arina9, Shi, Jingyan7, Shi, Yanan7, Shutov, Vitaly9, Sidorenkov, Andrey49, Simkovic, Fedor14, Sirignano, Chiara19, 25, Siripak, Jaruchit46, Sisti, Monica17, 18, Slupecki, Maciej51, Smirnov, Mikhail37, Smirnov, Oleg9, Sogo-Bezerra, Thiago23, Sokolov, Sergey9, Songwadhana, Julanan46, Soonthornthum, Boon-rucksar81, Sotnikov, Albert9, Sramek, Ondrej47, Sreethawong, Warintorn46, Stahl, Achim20, Stanco, Luca19, Stankevich, Konstantin48, Stefanik, DuSan14, Steiger, Hans44, 45, 79, Steinmann, Jochen20, Sterr, Tobias21, Stock, Matthias Raphael79, Strati, Virginia15, 16, Studenikin, Alexander48, Sun, Gongxing7, Sun, Shifeng36, Sun, Xilei7, Sun, Yongjie8, Sun, Yongzhao7, Suwonjandee, Narumon12, Szelezniak, Michal2, Tang, Jian37, Tang, Qiang37, Tang, Quan70, Tang, Xiao7, Tietzsch, Alexander21, Tkachev, Igor49, Tmej, Tomas47, Treskov, Konstantin9, Triossi, Andrea2, Troni, Giancarlo1, Trzaska, Wladyslaw51, Tuve, Cristina4, 5, Ushakov, Nikita49, van den Boom, Johannes57, van Waasen, Stefan57, Vanroyen, Guillaume23, Vassilopoulos, Nikolaos7, Vedin, Vadim76, Verde, Giuseppe4, 5, Vialkov, Maxim48, Viaud, Benoit23, Vollbrecht, Cornelius20, 56, Volpe, Cristina13, Vorobel, Vit47, Voronin, Dmitriy49, Votano, Lucia75, Walker, Pablo1, Wang, Caishen32, Wang, Chung-Hsiang31, Wang, En50, Wang, Guoli54, Wang, Jian8, Wang, Jun37, Wang, Kunyu7, Wang, Lu7, Wang, Meifen7, Wang, Meng70, 63, 64, Wang, Meng70, 63, 64, Wang, Ruiguang7, Wang, Siguang74, Wang, Wei37, 80, Wang, Wei37, 80, Wang, Wenshuai7, Wang, Xi68, 37, Wang, Xiangyue37, Wang, Yangfu7, Wang, Yaoguang7, Wang, Yi7, 33, 52, Wang, Yi7, 33, 52, Wang, Yifang7, Wang, Yuanqing33, Wang, Yuman80, Wang, Zhe7, 33, Wang, Zheng7, Wang, Zhimin7, Wang, Zongyi33, Waqas, Muhammad3, Watcharangkool, Apimook81, Wei, Lianghong7, Wei, Wei7, Wei, Wenlu7, Wei, Yadong32, Wen, Liangjian7, Wiebusch, Christopher20, Wong, Steven Chan-Fai37, Wonsak, Bjoern61, Wu, Diru7, Wu, Fangliang80, Wu, Qun63, 64, Wu, Zhi7, Wurm, Michael44, 45, Wurtz, Jacques2, Wysotzki, Christian20, Xi, Yufei55, Xia, Dongmei82, Xie, Yuguang7, Xie, Zhangquan7, Xing, Zhizhong7, Xu, Benda33, Xu, Cheng70, Xu, Donglian65, 71, Xu, Fanrong58, Xu, Hangkun7, Xu, Jilei7, Xu, Jing59, Xu, Meihang7, Xu, Yin67, Xu, Yu20, 56, Yan, Baojun7, Yan, Taylor46, Yan, Wenqi7, Yan, Xiongbo7, Yan, Yupeng46, Yang, Anbo7, Yang, Changgen7, Yang, Huan7, Yang, Jie50, Yang, Lei32, Yang, Xiaoyu7, Yang, Yifan42, 7, Yang, Yifan42, 7, Yao, Haifeng7, Yasin, Zafar3, Ye, Jiaxuan7, Ye, Mei7, Ye, Ziping71, Yegin, Ugur57, Yermia, Frederic23, Yi, Peihuai7, Yin, Na63, 64, Yin, Xiangwei7, You, Zhengyun37, Yu, Boxiang7, Yu, Chiye32, Yu, Chunxu67, Yu, Hongzhao37, Yu, Miao29, Yu, Xianghui67, Yu, Zeyuan7, Yu, Zezhong7, Yuan, Chengzhuo7, Yuan, Ying74, Yuan, Zhenxiong33, Yuan, Ziyi29, Yue, Baobiao37, Zafar, Noman3, Zambanini, Andre57, Zavadskyi, Vitalii9, Zeng, Shan7, Zeng, Tingxuan7, Zeng, Yuda37, Zhan, Liang7, Zhang, Aiqiang33, Zhang, Feiyang65, Zhang, Guoqing7, Zhang, Haiqiong7, Zhang, Honghao37, Zhang, Jiawen7, Zhang, Jie7, Zhang, Jingbo54, Zhang, Jinnan7, Zhang, Peng7, Zhang, Qingmin60, Zhang, Shiqi37, Zhang, Shu37, Zhang, Tao65, Zhang, Xiaomei7, Zhang, Xuantong7, Zhang, Xueyao63, 64, Zhang, Yan7, Zhang, Yinhong7, Zhang, Yiyu7, Zhang, Yongpeng7, Zhang, Yuanyuan65, Zhang, Yumei37, Zhang, Zhenyu29, Zhang, Zhijian32, Zhao, Fengyi34, Zhao, Jie7, Zhao, Rong37, Zhao, Shujun50, Zhao, Tianchi7, Zheng, Dongqin58, Zheng, Hua32, Zheng, Minshan62, Zheng, Yangheng69, Zhong, Weirong58, Zhou, Jing62, Zhou, Li7, Zhou, Nan8, Zhou, Shun7, Zhou, Tong7, Zhou, Xiang29, Zhu, Jiang37, Zhu, Kangpu60, Zhu, Kejun7, Zhu, Zhihang7, Zhuang, Bo7, Zhuang, Honglin7, Zong, Liang33, Zou, Jiaheng7

1Pontificia Univ Catolica Chile, Santiago, Chile., 2Univ Strasbourg, IPHC, CNRS IN2P3, F-67037 Strasbourg, France., 3Pakistan Inst Nucl Sci & Technol, Islamabad, Pakistan., 4INFN Catania, Catania, Italy., 5Univ Catania, Dipartimento Fis & Astron, Catania, Italy., 6East China Univ Sci & Technol, Shanghai, Peoples R China., 7Inst High Energy Phys, Beijing, Peoples R China., 8Univ Sci & Technol China, Hefei, Peoples R China., 9Joint Inst Nucl Res, Dubna, Russia., 10Ist Nazl Fis Nucl, Sez Milano, Milan, Italy., 11Univ Milan, Dipartimento Fis, Milan, Italy., 12Chulalongkorn Univ, Fac Sci, Dept Phys, Bangkok, Thailand., 13Univ Paris Saclay, IJCLab, CNRS IN2P3, F-91405 Orsay, France., 14Comenius Univ, Fac Math Phys & Informat, Bratislava, Slovakia., 15Univ Ferrara, Dept Phys & Earth Sci, Ferrara, Italy., 16Ist Nazl Fis Nucl, Sez Ferrara, Ferrara, Italy., 17INFN Milano Bicocca, Milan, Italy., 18Univ Milano Bicocca, Milan, Italy., 19Ist Nazl Fis Nucl, Sez Padova, Padua, Italy., 20Rhein Westfal TH Aachen, Phys Inst B 3, Aachen, Germany., 21Eberhard Karls Univ Tubingen, Phys Inst, Tubingen, Germany., 22Natl Taiwan Univ, Dept Phys, Taipei, Taiwan., 23Univ Nantes, IMT Atlantique, SUBATECH, CNRS IN2P3, Nantes, France., 24Univ Bordeaux, CENBG, CNRS, UMR 5797, F-33170 Gradignan, France., 25Univ Padua, Dipartimento Fis & Astron, Padua, Italy., 26Univ Roma Tre, Rome, Italy., 27Ist Nazl Fis Nucl, Sez Roma Tre, Rome, Italy., 28Ctr Phys Particules Marseille, Marseille, France., 29Wuhan Univ, Wuhan, Peoples R China., 30Politecn Milan, Milan, Italy., 31Natl United Univ, Miaoli, Taiwan., 32Dongguan Univ Technol, Dongguan, Peoples R China., 33Tsinghua Univ, Beijing, Peoples R China., 34Chinese Acad Sci, Inst Modern Phys, Lanzhou, Peoples R China., 35Natl Yang Ming Chiao Tung Univ, Inst Phys, Hsinchu, Taiwan., 36North China Elect Power Univ, Beijing, Peoples R China., 37Sun Yat Sen Univ, Guangzhou, Peoples R China., 38Beijing Inst Spacecraft Environm Engn, Beijing, Peoples R China., 39Univ Estadual Londrina, Londrina, Parana, Brazil., 40Ist Nazl Fis Nucl, Sez Perugia, Perugia, Italy., 41Univ Perugia, Dipartimento Chim Biol & Biotecnol, Perugia, Italy., 42Univ Libre Bruxelles, Brussels, Belgium., 43Univ Calif Irvine, Dept Phys & Astron, Irvine, CA USA., 44Johannes Gutenberg Univ Mainz, Inst Phys, Mainz, Germany., 45Johannes Gutenberg Univ Mainz, Excellence Cluster PRISMA, Mainz, Germany., 46Suranaree Univ Technol, Nakhon Ratchasima, Thailand., 47Charles Univ Prague, Fac Math & Phys, Prague, Czech Republic., 48Lomonosov Moscow State Univ, Moscow, Russia., 49Russian Acad Sci, Inst Nucl Res, Moscow, Russia., 50Zhengzhou Univ, Sch Phys & Microelect, Zhengzhou, Peoples R China., 51Univ Jyvaskyla, Dept Phys, Jyvaskyla, Finland., 52Wuyi Univ, Jiangmen, Peoples R China., 53Guangxi Univ, Nanning, Peoples R China., 54Harbin Inst Technol, Harbin, Peoples R China., 55Chinese Acad Geol Sci, Inst Hydrogeol & Environm Geol, Shijiazhuang, Peoples R China., 56Forschungszentrum Julich, Nucl Phys Inst IKP 2, Julich, Germany., 57Forschungszentrum Julich, Cent Inst Engn Elect & Analyt Elect Syst ZEA 2, Julich, Germany., 58Jinan Univ, Guangzhou, Peoples R China., 59Beijing Normal Univ, Beijing, Peoples R China., 60Xi An Jiao Tong Univ, Xian, Peoples R China., 61Univ Hamburg, Inst Expt Phys, Hamburg, Germany., 62China Inst Atom Energy, Beijing, Peoples R China., 63Shandong Univ, Jinan, Peoples R China., 64Shandong Univ, Key Lab Particle Phys & Particle Irradiat, Minist Educ, Qingdao, Peoples R China., 65Shanghai Jiao Tong Univ, Sch Phys & Astron, Shanghai, Peoples R China., 66Yerevan Phys Inst, Yerevan, Armenia., 67Nankai Univ, Tianjin, Peoples R China., 68Natl Univ Def Technol, Coll Elect Sci & Engn, Changsha, Peoples R China., 69Univ Chinese Acad Sci, Beijing, Peoples R China., 70Univ South China, Radiochem & Nucl Chem Grp, Hengyang, Peoples R China., 71Shanghai Jiao Tong Univ, Tsung Dao Lee Inst, Shanghai, Peoples R China., 72Jilin Univ, Changchun, Peoples R China., 73Xiamen Univ, Xiamen, Peoples R China., 74Peking Univ, Sch Phys, Beijing, Peoples R China., 75Ist Nazl Fis Nucl, Lab Nazl Frascati, Rome, Italy., 76Inst Elect & Comp Sci, Riga, Latvia., 77Univ Tecn Federico Santa Maria, Valparaiso, Chile., 78Pontificia Univ Catolica Rio de Janeiro, Rio De Janeiro, Brazil., 79Tech Univ Munich, Munich, Germany., 80Nanjing Univ, Nanjing, Peoples R China., 81Natl Astron Res Inst Thailand, Chiang Mai, Thailand., 82Chongqing Univ, Chongqing, Peoples R China.