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Title: Acrylic purification and coatings

Abstract

Radon (Rn) and its decay daughters are a well-known source of background in direct WIMP detection experiments, as either a Rn decay daughter or an alpha particle emitted from a thin inner surface layer of a detector could produce a WIMP-like signal. Different surface treatment and cleaning techniques have been employed in the past to remove this type of contamination. A new method of dealing with the problem has been proposed and used for a prototype acrylic DEAP-1 detector. Inner surfaces of the detector were coated with a layer of ultra pure acrylic, meant to shield the active volume from alphas and recoiling nuclei. An acrylic purification technique and two coating techniques are described: a solvent-borne (tested on DEAP-1) and solvent-less (being developed for the full scale DEAP-3600 detector).

Authors:
 [1]
  1. Queen's University, Department of Physics, Kingston ON, K7L 3N6 (Canada)
Publication Date:
OSTI Identifier:
21513190
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1338; Journal Issue: 1; Conference: LRT-2010: Topical workshop on low radioactivity techniques, Sudbury (Canada), 28-29 Aug 2010; Other Information: DOI: 10.1063/1.3579566; (c) 2011 American Institute of Physics; Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ALPHA DECAY; ALPHA PARTICLES; CLEANING; COATINGS; CONTAMINATION; DAUGHTER PRODUCTS; LAYERS; POLYMERS; PURIFICATION; RADON; SOLVENTS; SURFACE TREATMENTS; SURFACES; CHARGED PARTICLES; DECAY; ELEMENTS; FLUIDS; GASES; IONIZING RADIATIONS; ISOTOPES; NONMETALS; NUCLEAR DECAY; RADIATIONS; RARE GASES

Citation Formats

Kuzniak, Marcin. Acrylic purification and coatings. United States: N. p., 2011. Web. doi:10.1063/1.3579566.
Kuzniak, Marcin. Acrylic purification and coatings. United States. https://doi.org/10.1063/1.3579566
Kuzniak, Marcin. 2011. "Acrylic purification and coatings". United States. https://doi.org/10.1063/1.3579566.
@article{osti_21513190,
title = {Acrylic purification and coatings},
author = {Kuzniak, Marcin},
abstractNote = {Radon (Rn) and its decay daughters are a well-known source of background in direct WIMP detection experiments, as either a Rn decay daughter or an alpha particle emitted from a thin inner surface layer of a detector could produce a WIMP-like signal. Different surface treatment and cleaning techniques have been employed in the past to remove this type of contamination. A new method of dealing with the problem has been proposed and used for a prototype acrylic DEAP-1 detector. Inner surfaces of the detector were coated with a layer of ultra pure acrylic, meant to shield the active volume from alphas and recoiling nuclei. An acrylic purification technique and two coating techniques are described: a solvent-borne (tested on DEAP-1) and solvent-less (being developed for the full scale DEAP-3600 detector).},
doi = {10.1063/1.3579566},
url = {https://www.osti.gov/biblio/21513190}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1338,
place = {United States},
year = {Wed Apr 27 00:00:00 EDT 2011},
month = {Wed Apr 27 00:00:00 EDT 2011}
}