Sign on

SAO/NASA ADS General Science Abstract Service

· Find Similar Abstracts (with default settings below)
· Electronic Refereed Journal Article (HTML)
· References in the article
· Reads History
·
· Translate This Page
Title:
Comparisons between radioactive and non-radioactive gas lantern mantles
Authors:
Furuta, Etsuko; Yoshizawa, Yukio; Aburai, Tamaru
Affiliation:
AA(Radioisotope Research Center, Faculty of Science, Ochanomizu University, 2-1-1 Ohtsuka, Bunkyo-ku, Tokyo, 112-8610, Japan ), AB(Radioisotope Research Center, Jikei University School of Medicine, 3-25-8 Nishishimbashi, Minato-ku, Tokyo, 105-8461, Japan ), AC(Department of Radiological Sciences, International University of Health and Welfare, 2600-1 Kitakanamaru, Otawara City, Tochigi, Japan)
Publication:
Journal of Radiological Protection, Volume 20, Issue 4, pp. 423-431 (2000).
Publication Date:
12/2000
Origin:
IOP
DOI:
10.1088/0952-4746/20/4/305
Bibliographic Code:
2000JRP....20..423F

Abstract

Gas lantern mantles containing radioactive thorium have been used for more than 100 years. Although thorium was once believed to be indispensable for giving a bright light, non-radioactive mantles are now available. From the radioactivities of the daughter nuclides, we estimated the levels of radioactivity of 232Th and 228Th in 11 mantles. The mantles contained various levels of radioactivity from background levels to 1410±140 Bq. Our finding that radioactive and non-radioactive mantles are equally bright suggests that there is no advantage in using radioactive mantles. A remaining problem is that gas lantern mantles are sold without any information about radioactivity.
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)

Find Similar Abstracts:

Use: Authors
Title
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints