Landini, C. (2024) JUNO Detector: Liquid scintillator purification with distillation and stripping plants. Il nuovo cimento C, 47 (6). pp. 1-4. ISSN 1826-9885
|
Text
ncc13156.pdf - Published Version Download (166kB) | Preview |
Abstract
JUNO (Jiangmen Underground Neutrino Observatory), currently under construction in China, is a multipurpose underground liquid scintillator detector, designed to study some of the fundamental neutrino parameters. The central detector of JUNO consists of a huge acrylic sphere filled with 20 kton of organic liquid scintillator (LS) mixture, whose optical and radio-purity properties are crucial to achieve the experimental goals. For this purpose, before filling the detector, the scintillator will be purified through a sequence of 5 purification processes: alumina filtration, vacuum distillation, mixing plant, water extraction and gas stripping. The distillation of the solvent is fundamental to remove heavy and high-boiling radioactive metals, such as 238U, 232Th and 40K, while the stripping process has been proven effective to remove gaseous impurities like Ar, Kr and Rn. Two dedicated plants have been designed and built to perform the distillation and the stripping purification processes on JUNO LS. These plants have been recently commissioned at JUNO site to test and verify the purification efficiency on several LS samples and to optimize the operating parameters of the plants. Some preliminary results (absorption spectra) on LS will be presented.
| Item Type: | Article |
|---|---|
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 19 Feb 2025 16:06 |
| Last Modified: | 19 Feb 2025 16:06 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/23412 |
Actions (login required)
 |
View Item |
