The Underground Guardian of Purity ✎ express
Original: "Final assessment of radioactive impurities in the JUNO detector"
I am the author ·
Thomas Adam ,
Fengpeng An ,
Costas Andreopoulos ,
Giuseppe Andronico ,
Nikolay Anfimov ,
Vito Antonelli ,
Tatiana Antoshkina ,
João Pedro Athayde Marcondes de André ,
Didier Auguste ,
Nikita Balashov ,
Andrea Barresi ,
Davide Basilico ,
Eric Baussan ,
Marco Beretta ,
Antonio Bergnoli ,
Nikita Bessonov ,
Daniel Bick ,
Lukas Bieger ,
Svetlana Biktemerova ,
Thilo Birkenfeld ,
Simon Blyth ,
Manuel Böhles ,
Anastasia Bolshakova ,
Mathieu Bongrand ,
Matteo Borghesi ,
Dominique Breton ,
Augusto Brigatti ,
Riccardo Brugnera ,
Riccardo Bruno ,
Antonio Budano ,
Jose Busto ,
Marcel Büchner ,
Anatael Cabrera ,
Barbara Caccianiga ,
Hao Cai ,
Xiao Cai ,
Yi-zhou Cai ,
Stéphane Callier ,
Antonio Cammi ,
Guofu Cao ,
Jun Cao ,
Yaoqi Cao ,
Rossella Caruso ,
Cédric Cerna ,
Vanessa Cerrone ,
Jinfan Chang ,
Yun Chang ,
Tim Charisse ,
Chao Chen ,
Haotian Chen ,
Jiahui Chen ,
Jian Chen ,
Jing Chen ,
Junyou Chen ,
Pingping Chen ,
Shaomin Chen ,
Shiqiang Chen ,
Yixue Chen ,
Yu Chen ,
Ze Chen ,
Zhangming Chen ,
Zhiyuan Chen ,
Zhongchang Chen ,
Jie Cheng ,
Yaping Cheng ,
Yu Chin Cheng ,
Alexander Chepurnov ,
Alexey Chetverikov ,
Davide Chiesa ,
Ziliang Chu ,
Artem Chukanov ,
Gérard Claverie ,
Catia Clementi ,
Barbara Clerbaux ,
Claudio Coletta ,
Marta Colomer Molla ,
Selma Conforti Di Lorenzo ,
Chenyang Cui ,
Lorenzo Vincenzo D'Auria ,
Christophe De La Taille ,
Luis Delgadillo Franco ,
Ziyan Deng ,
Xiaoyu Ding ,
Xuefeng Ding ,
Yayun Ding ,
Sergey Dmitrievsky ,
Dmitry Dolzhikov ,
Chuanshi Dong ,
Haojie Dong ,
Jianmeng Dong ,
Marcos Dracos ,
Frédéric Druillole ,
Ran Du ,
Shuxian Du ,
Katherine Dugas ,
Stefano Dusini ,
Hongyue Duyang ,
Jessica Eck ,
Andrea Fabbri ,
Ulrike Fahrendholz ,
Gaofeng Fan ,
Lei Fan ,
Liangqianjin Fan ,
Jian Fang ,
Wenxing Fang ,
Dmitry Fedoseev ,
Qichun Feng ,
Shaoting Feng ,
Giovanni Ferrante ,
Daniela Fetzer ,
Marcellin Fotzé ,
Amélie Fournier ,
Aaron Freegard ,
Ying Fu ,
Feng Gao ,
Alberto Garfagnini ,
Arsenii Gavrikov ,
Diwash Ghimire ,
Marco Giammarchi ,
Nunzio Giudice ,
Maxim Gonchar ,
Guanda Gong ,
Guanghua Gong ,
Yuri Gornushkin ,
Marco Grassi ,
Maxim Gromov ,
Vasily Gromov ,
Minhao Gu ,
Xiaofei Gu ,
Yu Gu ,
Mengyun Guan ,
Yuduo Guan ,
Nunzio Guardone ,
Rosa Maria Guizzetti ,
Cong Guo ,
Wanlei Guo ,
Caren Hagner ,
Hechong Han ,
Yang Han ,
Chuanhui Hao ,
Miao He ,
Wei He ,
Xinhai He ,
Ziou He ,
Patrick Hellmuth ,
Yuekun Heng ,
YuenKeung Hor ,
Shaojing Hou ,
Fatima Houria ,
Yee Hsiung ,
Bei-Zhen Hu ,
Jun Hu ,
Tao Hu ,
Lian-Chen Huang ,
Guihong Huang ,
Jinhao Huang ,
Junlin Huang ,
Junting Huang ,
Kaixuan Huang ,
Shengheng Huang ,
Tao Huang ,
Xin Huang ,
Xingtao Huang ,
Yongbo Huang ,
Jiaqi Hui ,
Lei Huo ,
Cédric Huss ,
Ammad Ul Islam ,
Adrienne Jacobi ,
Arshak Jafar ,
Xiangpan Ji ,
Xiaolu Ji ,
Junji Jia ,
Cailian Jiang ,
Chengbo Jiang ,
Guangzheng Jiang ,
Junjie Jiang ,
Xiaoshan Jiang ,
Xiaozhao Jiang ,
Yijian Jiang ,
Yixuan Jiang ,
Xiaoping Jing ,
Cécile Jollet ,
Liam Jones ,
Amina Khatun ,
Khanchai Khosonthongkee ,
Denis Korablev ,
Alexey Krasnoperov ,
Sindhujha Kumaran ,
Chun-Hao Kuo ,
Nikolay Kutovskiy ,
Loïc Labit ,
Tobias Lachenmaier ,
Haojing Lai ,
Cecilia Landini ,
Lorenzo Lastrucci ,
Sébastien Leblanc ,
Matthieu Lecocq ,
Ruiting Lei ,
Rupert Leitner ,
Petr Lenskii ,
Demin Li ,
Fei Li ,
Gaosong Li ,
Jiajun Li ,
Meiou Li ,
Min Li ,
Nan Li ,
Ruhui Li ,
Rui Li ,
Shanfeng Li ,
Shuo Li ,
Teng Li ,
Weidong Li ,
Xiaonan Li ,
Yichen Li ,
Yifan Li ,
Yingke Li ,
Yufeng Li ,
Zhaohan Li ,
Zhibing Li ,
Zi-Ming Li ,
An-An Liang ,
Jiajun Liao ,
Minghua Liao ,
Yilin Liao ,
Ayut Limphirat ,
Bo-Chun Lin ,
Guey-Lin Lin ,
Shengxin Lin ,
Tao Lin ,
Xingyi Lin ,
Jiajie Ling ,
Xin Ling ,
Ivano Lippi ,
Caimei Liu ,
Fang Liu ,
Haidong Liu ,
Hongbang Liu ,
Hongjuan Liu ,
Jianglai Liu ,
Jiaxi Liu ,
Jinchang Liu ,
Kainan Liu ,
Min Liu ,
Qian Liu ,
Shenghui Liu ,
Shulin Liu ,
Ximing Liu ,
Xuewei Liu ,
Yankai Liu ,
Yiqi Liu ,
Zhipeng Liu ,
Zhuo Liu ,
Lorenzo Loi ,
Paolo Lombardi ,
Kai Loo ,
Haoqi Lu ,
Junguang Lu ,
Meishu Lu ,
Shuxiang Lu ,
Xianguo Lu ,
Bayarto Lubsandorzhiev ,
Sultim Lubsandorzhiev ,
Livia Ludhova ,
Arslan Lukanov ,
Fengjiao Luo ,
Guang Luo ,
Jianyi Luo ,
Shu Luo ,
Wuming Luo ,
Xiaojie Luo ,
Bangzheng Ma ,
Bing Ma ,
Qiumei Ma ,
Si Ma ,
Wing Yan Ma ,
Xiaoyan Ma ,
Xubo Ma ,
Jihane Maalmi ,
Jingyu Mai ,
Marco Malabarba ,
Yury Malyshkin ,
Roberto Carlos Mandujano ,
Fabio Mantovani ,
Stefano M. Mari ,
Agnese Martini ,
Johann Martyn ,
Matthias Mayer ,
Yue Meng ,
Anselmo Meregaglia ,
Lino Miramonti ,
Michele Montuschi ,
Cristobal Morales Reveco ,
Iwan Morton-Blake ,
Xiangyi Mu ,
Lakshmi Murgod ,
Massimiliano Nastasi ,
Dmitry V. Naumov ,
Elena Naumova ,
Igor Nemchenok ,
Elisabeth Neuerburg ,
Feipeng Ning ,
Zhe Ning ,
Yujie Niu ,
Lothar Oberauer ,
Juan Pedro Ochoa-Ricoux ,
Alexander Olshevskiy ,
Domizia Orestano ,
Fausto Ortica ,
Rainer Othegraven ,
Yifei Pan ,
Alessandro Paoloni ,
George Parker ,
Yatian Pei ,
Luca Pelicci ,
Anguo Peng ,
Yu Peng ,
Zhaoyuan Peng ,
Elisa Percalli ,
Willy Perrin ,
Frédéric Perrot ,
Fabrizio Petrucci ,
Oliver Pilarczyk ,
Pascal Poussot ,
Ezio Previtali ,
Fazhi Qi ,
Ming Qi ,
Sen Qian ,
Xiaohui Qian ,
Zhonghua Qin ,
Shoukang Qiu ,
Manhao Qu ,
Zhenning Qu ,
Gioacchino Ranucci ,
Thomas Raymond ,
Alessandra Re ,
Abdel Rebii ,
Bin Ren ,
Yuhan Ren ,
Barbara Ricci ,
Mariam Rifai ,
Mathieu Roche ,
Narongkiat Rodphai ,
Aldo Romani ,
Bedřich Roskovec ,
Félix Rosso ,
Peter Rudakov ,
Arseniy Rybnikov ,
Andrey Sadovsky ,
Sahar Safari ,
Ujwal Santhosh ,
Utane Sawangwit ,
Michaela Schever ,
Cédric Schwab ,
Konstantin Schweizer ,
Alexandr Selyunin ,
Andrea Serafini ,
Mariangela Settimo ,
Junyu Shao ,
Anurag Sharma ,
Vladislav Sharov ,
Hangyu Shi ,
Jingyan Shi ,
Yuan Shi ,
Hexi Shi ,
Dmitrii Shpotya ,
Yike Shu ,
Yuhan Shu ,
She Shuai ,
Vitaly Shutov ,
Randhir Singh ,
Apeksha Singhal ,
Chiara Sirignano ,
Jaruchit Siripak ,
Monica Sisti ,
Mikhail Smirnov ,
Oleg Smirnov ,
Sergey Sokolov ,
Julanan Songwadhana ,
Albert Sotnikov ,
Achim Stahl ,
Luca Stanco ,
Elia Stanescu Farilla ,
Hans Steiger ,
Jochen Steinmann ,
Tobias Sterr ,
Matthias Raphael Stock ,
Virginia Strati ,
Mikhail Strizh ,
Aoqi Su ,
Jun Su ,
Guangbao Sun ,
Mingxia Sun ,
Xilei Sun ,
Yongzhao Sun ,
Zhengyang Sun ,
Narumon Suwonjandee ,
Fedor Šimkovic ,
Akira Takenaka ,
Xiaohan Tan ,
Haozhong Tang ,
Jian Tang ,
Jingzhe Tang ,
Quan Tang ,
Xiao Tang ,
Vidhya Thara Hariharan ,
Yuxin Tian ,
Igor Tkachev ,
Tomas Tmej ,
Marco Danilo Claudio Torri ,
Andrea Triossi ,
Wladyslaw Trzaska ,
Andrei Tsaregorodtsev ,
Yu-Chen Tung ,
Cristina Tuve ,
Carlo Venettacci ,
Giuseppe Verde ,
Benoit Viaud ,
Vit Vorobel ,
Lucia Votano ,
Jiawei Wan ,
Caishen Wang ,
Chung-Hsiang Wang ,
En Wang ,
Hanwen Wang ,
Jiabin Wang ,
Jun Wang ,
Ke Wang ,
Li Wang ,
Meng Wang ,
Meng Wang ,
Mingyuan Wang ,
Ruiguang Wang ,
Sibo Wang ,
Tianhong Wang ,
Wei Wang ,
Wenshuai Wang ,
Wenyuan Wang ,
Xi Wang ,
Yangfu Wang ,
Yaoguang Wang ,
Yi Wang ,
Yifang Wang ,
Yuyi Wang ,
Zhe Wang ,
Zheng Wang ,
Zhimin Wang ,
Apimook Watcharangkool ,
Junya Wei ,
Jushang Wei ,
Wei Wei ,
Wei Wei ,
Yuehuan Wei ,
Zhengbao Wei ,
Liangjian Wen ,
Jun Weng ,
Rosmarie Wirth ,
Bi Wu ,
Chengxin Wu ,
Qun Wu ,
Yinhui Wu ,
Zhaoxiang Wu ,
Zhi Wu ,
Michael Wurm ,
Jacques Wurtz ,
Dongmei Xia ,
Shishen Xian ,
Ziqian Xiang ,
Fei Xiao ,
Pengfei Xiao ,
Tianying Xiao ,
Xiang Xiao ,
Wei-Jun Xie ,
Yuguang Xie ,
Zhizhong Xing ,
Benda Xu ,
Cheng Xu ,
Chuang Xu ,
Donglian Xu ,
Fanrong Xu ,
Jiayang Xu ,
Jilei Xu ,
Jinghuan Xu ,
Meihang Xu ,
Shiwen Xu ,
Xunjie Xu ,
Dongyang Xue ,
Jingqin Xue ,
Baojun Yan ,
Qiyu Yan ,
Taylor Yan ,
Xiongbo Yan ,
Changgen Yang ,
Chengfeng Yang ,
Dikun Yang ,
Fengfan Yang ,
Jie Yang ,
Kaiwei Yang ,
Lei Yang ,
Pengfei Yang ,
Xiaoyu Yang ,
Xuhui Yang ,
Yifan Yang ,
Zekun Yang ,
Haifeng Yao ,
Jiaxuan Ye ,
Mei Ye ,
Ziping Ye ,
Frédéric Yermia ,
Jilong Yin ,
Weiqing Yin ,
Xiaohao Yin ,
Zhengyun You ,
Boxiang Yu ,
Chiye Yu ,
Chunxu Yu ,
Hongzhao Yu ,
Peidong Yu ,
Simi Yu ,
Zeyuan Yu ,
Cenxi Yuan ,
Chengzhuo Yuan ,
Noman Zafar ,
Vitalii Zavadskyi ,
Fanrui Zeng ,
Shan Zeng ,
Tingxuan Zeng ,
Liang Zhan ,
Bin Zhang ,
Feiyang Zhang ,
Han Zhang ,
Hangchang Zhang ,
Haosen Zhang ,
Honghao Zhang ,
Jiawen Zhang ,
Jie Zhang ,
Jingbo Zhang ,
Junwei Zhang ,
Lei Zhang ,
Ping Zhang ,
Qingmin Zhang ,
Rongping Zhang ,
Shiqi Zhang ,
Shuihan Zhang ,
Tao Zhang ,
Xiaomei Zhang ,
Xu Zhang ,
Xuantong Zhang ,
Yibing Zhang ,
Yinhong Zhang ,
Yiyu Zhang ,
Yongpeng Zhang ,
Yuanyuan Zhang ,
Yue Zhang ,
Yumei Zhang ,
Zhenyu Zhang ,
Zhicheng Zhang ,
Zhijian Zhang ,
Jie Zhao ,
Runze Zhao ,
Shujun Zhao ,
Yangheng Zheng ,
Li Zhou ,
Lishui Zhou ,
Shun Zhou ,
Xiang Zhou ,
Xing Zhou ,
Jingsen Zhu ,
Kangfu Zhu ,
Kejun Zhu ,
Bo Zhuang ,
Honglin Zhuang ,
Jiaheng Zou The JUNO detector has finished screening thousands of materials to catch neutrinos without interference.
📄 Showing the "Simple" version — "Advanced" is not ready yet. Add it to favorites to help prioritize it. Ask for the full read
A huge pool of clear liquid is hidden deep underground. Inside, there is nothing but a pristine 'broth' that flashes with faint light when an invisible particle flies through. This is the JUNO detector—20,000 tons of liquid scintillator built to hunt for neutrinos .
The main enemy of such a hunt is not darkness but its own noise. The liquid itself, the tank walls, even the bolts and gaskets can slightly 'glow'—emitting particles due to natural radioactivity . To distinguish signal from noise, scientists sifted through thousands of materials, like choosing the quietest instruments for an orchestra. In the end, in the central region of the detector with a radius of 17.2 meters, they achieved a count of only about 7 events per second at energies above 0.7 MeV. That's like hearing a whisper across a noisy square.
Random coincidences, when two unwanted signals masquerade as one useful one, happen only once a day. For reactor
antineutrino analysis, that's perfect silence.
Construction of the detector and filling it with liquid were completed in August 2025. The first data already show that the natural radioactivity inside the active volume meets strict requirements. Now this giant underground 'eye' is ready to watch for elusive particles that will tell us how matter is put together. And again, the silence of the underground pool, but now you can make out the faintest flashes.
The liquid scintillator in JUNO is so transparent that light from a flash can travel tens of meters through it before being captured by sensitive photodetectors.
Reads well Too long Unclear Great A bit dry
send