Activation of Tl, Pb and Bi by 10-160 MeV neutrons [electronic resource] : possible application to the analysis of Bi.
- Published
- Upton, N.Y. : Brookhaven National Laboratory, 1981.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy. - Physical Description
- Pages: 14 : digital, PDF file
- Additional Creators
- Brookhaven National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
Access Online
- Restrictions on Access
- Free-to-read Unrestricted online access
- Summary
- The medium energy intense neutrons (MEIN) available at the Brookhaven Chemistry Linac Irradiation Facility have an energy distribution up to approx. 160 MeV and an effective neutron flux of approx. 1.3 x 10/sup 11/ cm/sup -2/ s/sup -1/. The present work explores the feasibility of using this facility for the analysis of Tl, Pb and Bi by activation with MEIN. The most sensitive reactions, from a practical standpoint, were found to be Tl (n, xn) /sup 200/Tl (x = 4, 6), Pb (n, xn) /sup 204//sup m/Pb (x = 0, 3, 4, 5) and /sup 209/Bi (n, 6n) /sup 204/Bi. The absolute sensitivities attainable with these reactions are 0.1, 0.05 and 0.08 ..mu..g of Tl, Pb and Bi respectively, for 1 h irradiation at 1.3 x 10/sup 11/ n cm/sup -2/ s/sup -1/ with samples counted 2 h after the end of irradiation. The advantages of the method over thermal neutron activation analysis are that all three elements can be assayed at the sub-microgram concentration levels by ..gamma..-spectrometry with the help of a simple radiochemical purificaton and the analytical results can be verified by cross checking via the multiple (n, xn) reaction products. However, interference from Bi in the determination of Pb and from Pb and Bi in the determination of Tl limits its usefulness to the analysis of Bi.
- Report Numbers
- E 1.99:bnl-29707
E 1.99: conf-810682-8
conf-810682-8
bnl-29707 - Subject(s)
- Other Subject(s)
- Note
- Published through SciTech Connect.
01/01/1981.
"bnl-29707"
" conf-810682-8"
"DE81027300"
6. international conference: Modern trends in activation analysis, Toronto, Canada, 15 Jun 1981.
Parekh, P.P.; Finston, H.L. - Funding Information
- AC02-76CH00016
View MARC record | catkey: 14397459