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Deposition of radon decay products onto metals in contact

Authors
Journal
Radiation Measurements
1350-4487
Publisher
Elsevier
Publication Date
Volume
34
Identifiers
DOI: 10.1016/s1350-4487(01)00231-1
Keywords
  • Radon Decay Products
  • Deposition Rate
  • Cr-39
  • Weak Electric Field
Disciplines
  • Mathematics

Abstract

Abstract The deposition of radon decay products onto surfaces is affected by geometrical factors such as the proximity of other objects, as well as on the local electrical fields. In this study, the deposition of 222Rn decay products onto two different metals in contact (pairs Ag–Al, Fe–Al, Fe–Cu and Ag–Fe) was investigated. The density of the α particle tracks, emitted by 218Po and 214Po, deposited on the metals was measured for different proximities of a wall. It was found that even small contact potentials (∼1 V) can cause a significant difference (factor of two) in the deposition rates of the radon decay products.

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