Spectroscopic analysis of alpha particles from radioactive nuclides with CR-39 plastic nuclear track detectors

Satoshi Kodaira; Miroslaw Janik

doi:10.1093/rpd/ncae068

Spectroscopic analysis of alpha particles from radioactive nuclides with CR-39 plastic nuclear track detectors

Radiat Prot Dosimetry. 2024 Nov 13;200(16-18):1686-1691. doi: 10.1093/rpd/ncae068.

Authors

Satoshi Kodaira¹, Miroslaw Janik¹

Affiliation

¹ Radiation Measurement Research Group, National Institutes for Quantum Science and Technology (QST), 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan.

PMID: 39540523
DOI: 10.1093/rpd/ncae068

Abstract

A spectroscopy method of alpha particles with the track geometry parameters in CR-39 plastic nuclear track detectors is proposed. The relationship between the track registration sensitivity and incident angle of each etch pit is analyzed. The components of alpha particles emitted from radon, thoron and 241Am can be roughly separated when the etching level is not exceeded beyond the range in CR-39. This work aims at improving the dose assessment accuracy from exposure to indoor radon and thoron.

MeSH terms

Air Pollutants, Radioactive* / analysis
Alpha Particles*
Americium* / analysis
Humans
Plastics
Polyethylene Glycols
Radiation Monitoring* / instrumentation
Radiation Monitoring* / methods
Radon* / analysis
Spectrum Analysis* / methods

Substances

CR 39
Americium
Air Pollutants, Radioactive
Radon
Plastics
Americium-241
Polyethylene Glycols