Experimental methods of determining the activity depth distribution of implanted 210Pb in glass.

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Abstract

Glass is often used in radon surveys to estimate retrospective radon concentrations, as radon progenies are embedded in the upper surface layer. Experimental methods based on etching to determine the depth distribution of recoil-implanted 210Po in glass from radon decay in air is presented. By carefully controlling chemical concentrations and exposure time during which the glass is etched, stepwise removal of the surface material was possible. Two different etching agents, diluted HF/HNO3 and NaOH were utilised, with very similar results. Experimental recoil depths of 210Po agree with theoretical calculations from the literature. The maximum implantation depth obtained using this procedure was 100 +/- 20nm.

Detaljer

Författare
  • Birgitta Roos
  • Christer Samuelsson
Enheter & grupper
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Miljövetenskap
Originalspråkengelska
Sidor (från-till)135-151
TidskriftJournal of Environmental Radioactivity
Volym63
Utgåva nummer2
StatusPublished - 2002
PublikationskategoriForskning
Peer review utfördJa