Experimental study of track density distribution on LR115 detector and deposition fraction of 218Po in diffusion chamber

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • V. S Y Koo
  • C. W Y Yip
  • J. P Y Ho
  • D. Nikezic
  • K. N. Yu

Detail(s)

Original languageEnglish
Pages (from-to)470-473
Journal / PublicationNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume491
Issue number3
Publication statusPublished - 1 Oct 2002

Abstract

The radial distribution of track density on a solid-state nuclear track detector inside a diffusion chamber is a function of the fraction f of 218Po decay before deposition. In the present work, procedures are proposed to determine f experimentally by determining the track density distribution on an LR115 detector in a diffusion chamber. First, a relatively tall diffusion chamber, with a height of 8cm, was chosen. After exposure, the LR115 detector was etched. A transparent template with concentric circles was devised to study the radial distribution of sensitivity using an optical microscope. The distributions according to different values of f were also calculated using Monte Carlo simulations. By minimizing the deviations between these Monte Carlo curves and the experimental data, f was found to be 0.4. © 2002 Elsevier Science B.V. All rights reserved.

Research Area(s)

  • Detector sensitivity, LR115 detector, Natural radioactivity, Radon

Citation Format(s)

Experimental study of track density distribution on LR115 detector and deposition fraction of 218Po in diffusion chamber. / Koo, V. S Y; Yip, C. W Y; Ho, J. P Y; Nikezic, D.; Yu, K. N.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 491, No. 3, 01.10.2002, p. 470-473.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review