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Title: A scintillator purification plant and fluid handling system for SNO+

A large capacity purification plant and fluid handling system has been constructed for the SNO+ neutrino and double-beta decay experiment, located 6800 feet underground at SNOLAB, Canada. SNO+ is a refurbishment of the SNO detector to fill the acrylic vessel with liquid scintillator based on Linear Alkylbenzene (LAB) and 2 g/L PPO, and also has a phase to load natural tellurium into the scintillator for a double-beta decay experiment with {sup 130}Te. The plant includes processes multi-stage dual-stream distillation, column water extraction, steam stripping, and functionalized silica gel adsorption columns. The plant also includes systems for preparing the scintillator with PPO and metal-loading the scintillator for double-beta decay exposure. We review the basis of design, the purification principles, specifications for the plant, and the construction and installations. The construction and commissioning status is updated.
Authors:
 [1]
  1. SNOLAB, Creighton Mine #9, 1039 R.R.24, Lively, Ontario, Canada. (Canada)
Publication Date:
OSTI Identifier:
22488715
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1672; Journal Issue: 1; Conference: LRT 2015: 5. international workshop in low radioactivity techniques, Seattle, WA (United States), 18-20 Mar 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ADSORPTION; DESIGN; DISTILLATION EQUIPMENT; DOUBLE BETA DECAY; EXTRACTION; INSTALLATION; LIQUID SCINTILLATION DETECTORS; LOADING; METALS; NEUTRINO DETECTION; NEUTRINOS; PURIFICATION; REVIEWS; SILICA GEL; STEAM STRIPPING; SUDBURY NEUTRINO OBSERVATORY; TELLURIUM; TELLURIUM 130; UNDERGROUND; WATER