The OSIRIS detector is a subsystem of the liquid scintillator filling chain of the JUNO reactor neutrino exper- iment. Its purpose is to validate the radiopurity of the scintil- lator to assure that all components of the JUNO scintillator system work to specifications and only neutrino-grade scin- tillator is filled into the JUNO Central Detector. The aspired sensitivity level of 10−16 g/g of 238 U and 232 Th requires a large (∼ 20 m3) 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 sensitiv- ity levels to U/Th that can be reached in this setup.

The design and sensitivity of JUNO’s scintillator radiopurity pre-detector OSIRIS

Baldini, Wander;Mantovani, Fabio;Montuschi, Michele;Ricci, Barbara;Serafini, Andrea;Strati, Virginia;
2021

Abstract

The OSIRIS detector is a subsystem of the liquid scintillator filling chain of the JUNO reactor neutrino exper- iment. Its purpose is to validate the radiopurity of the scintil- lator to assure that all components of the JUNO scintillator system work to specifications and only neutrino-grade scin- tillator is filled into the JUNO Central Detector. The aspired sensitivity level of 10−16 g/g of 238 U and 232 Th requires a large (∼ 20 m3) 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 sensitiv- ity levels to U/Th that can be reached in this setup.
2021
Abusleme, Angel; Adam, Thomas; Ahmad, Shakeel; Ahmed, Rizwan; Aiello, Sebastiano; Akram, Muhammad; An, Fengpeng; An, Guangpeng; An, Qi; Andronico, Giuseppe; Anfimov, Nikolay; Antonelli, Vito; Antoshkina, Tatiana; Asavapibhop, Burin; de André, João Pedro Athayde Marcondes; Auguste, Didier; Babic, Andrej; Baldini, Wander; Barresi, Andrea; Basilico, Davide; Baussan, Eric; Bellato, Marco; Bergnoli, Antonio; Birkenfeld, Thilo; Blin, Sylvie; Blum, David; Blyth, Simon; Bolshakova, Anastasia; Bongrand, Mathieu; Bordereau, Clément; Breton, Dominique; Brigatti, Augusto; Brugnera, Riccardo; Bruno, Riccardo; Budano, Antonio; Buscemi, Mario; Busto, Jose; Butorov, Ilya; Cabrera, Anatael; Cai, Hao; Cai, Xiao; Cai, Yanke; Cai, Zhiyan; Cammi, Antonio; Campeny, Agustin; Cao, Chuanya; Cao, Guofu; Cao, Jun; Caruso, Rossella; Cerna, Cédric; Chang, Jinfan; Chang, Yun; Chen, Pingping; Chen, Po-An; Chen, Shaomin; Chen, Xurong; Chen, Yi-Wen; Chen, Yixue; Chen, Yu; Chen, Zhang; Cheng, Jie; Cheng, Yaping; Chetverikov, Alexey; 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Ortica, Fausto; Othegraven, Rainer; Pan, Hsiao-Ru; Paoloni, Alessandro; Parkalian, Nina; Parmeggiano, Sergio; Pei, Yatian; Pelliccia, Nicomede; Peng, Anguo; Peng, Haiping; Perrot, Frédéric; Petitjean, Pierre-Alexandre; Petrucci, Fabrizio; Pilarczyk, Oliver; Rico, Luis Felipe Piñeres; Popov, Artyom; Poussot, Pascal; Pratumwan, Wathan; Previtali, Ezio; Qi, Fazhi; Qi, Ming; Qian, Sen; Qian, Xiaohui; Qian, Zhen; Qiao, Hao; Qin, Zhonghua; Qiu, Shoukang; Rajput, Muhammad Usman; Ranucci, Gioacchino; Raper, Neill; Re, Alessandra; Rebber, Henning; Rebii, Abdel; Ren, Bin; Ren, Jie; Ricci, Barbara; Robens, Markus; Roche, Mathieu; Rodphai, Narongkiat; Romani, Aldo; Roskovec, Bedřich; Roth, Christian; Ruan, Xiangdong; Ruan, Xichao; Rujirawat, Saroj; Rybnikov, Arseniy; Sadovsky, Andrey; Saggese, Paolo; Sanfilippo, Simone; Sangka, Anut; Sanguansak, Nuanwan; Sawangwit, Utane; Sawatzki, Julia; Sawy, Fatma; Schever, Michaela; Schwab, Cédric; Schweizer, Konstantin; Selyunin, Alexandr; Serafini, Andrea; Settanta, Giulio; 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Zheng, Dongqin; Zheng, Hua; Zheng, Minshan; Zheng, Yangheng; Zhong, Weirong; Zhou, Jing; Zhou, Li; Zhou, Nan; Zhou, Shun; Zhou, Tong; Zhou, Xiang; Zhu, Jiang; Zhu, Kangpu; Zhu, Kejun; Zhu, Zhihang; Zhuang, Bo; Zhuang, Honglin; Zong, Liang; Zou, Jiaheng
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