Abstract
The Jiangmen Underground Neutrino Observatory (JUNO) is a large-scale neutrino detector with 20 kton high transparency liquid scintillator (LS). To increase the attenuation length of LS, alumina absorption columns are used to purify the optical impurities in Linear Alkyl Benzene (LAB), the raw material of LS. Prototypes of absorption columns were constructed to test absorption material and parameters that could affect the purification efficiency including column height-diameter ratio and flow rate. Meanwhile, the pilot plant of alumina purification system was built in the Daya Bay Neutrino Laboratory to test the design and operation process, provide parameter reference for the design of JUNO purification system. The alumina purification pilot plant can increase the attenuation length of LAB from 20 m to more than 24 m without introducing radioactive background at 10−15 g/g level. The pilot plant of alumina purification system can meet the JUNO requirements in LS optical purification.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
