Estimation of Uranium Concentration in the Front Glass of CRT with Fission-Track Detectors

Hisao YAMAMOTO; Satoru HATAKEYAMA; Toshiyuki NORIMURA; Takehiko TSUCHIYA; Fumio SHIRAISHI

doi:10.5453/jhps.25.369

Hisao YAMAMOTO, Satoru HATAKEYAMA, Toshiyuki NORIMURA, Takehiko TSUCHIYA, Fumio SHIRAISHI

Author information

Keywords: uranium, uranium series, uranium ore, radiation, mica, fission track detector, television, cathode ray tube, glass, germanium, semiconductor detector, gamma ray, nuclear reactor

JOURNAL FREE ACCESS

1990 Volume 25 Issue 4 Pages 369-371

DOI https://doi.org/10.5453/jhps.25.369

Details

Abstract

The concentration of the uranium contained within the front glass of CRT (cathode ray tube) of television sets was estimated with fission-track detectors. It was found that atoms of the uranium were distributed almost uniformly within the glass, and that the concentration was 0.6-18ppm for the glass of CRT, whereas it was 0.3-0.7ppm for the other glass such as a laboratory dish. Namely, the value of the highest concentration of the former was several-tens times as large as that of the latter.

Corresponding author

Register with J-STAGE for free!