Affordable Access

Publisher Website

Modes of formation of tin fission products

Authors
Journal
Journal of Inorganic and Nuclear Chemistry
0022-1902
Publisher
Elsevier
Publication Date
Volume
33
Issue
9
Identifiers
DOI: 10.1016/0022-1902(71)80037-4

Abstract

Abstract The modes of formation of 121Sn, 123Sn, 125Sn, 127Sn, and 128Sn from thermal-neutron induced fission of 235U have been investigated by separating indium and tin rapidly, in times as short as 4 sec after fission occurred, and measuring the amount of tin isotope formed by beta decay of indium precursors. The results are summarized in the following table. Fraction of Sn nuclide from beta decay of: In(short-lived) In(long-lived) Fraction formed independently 27-hr 121sn 0·82 +0·04 0·18±0·04 <0·14 −0.·13 40-min 123Sn 0·77 +0·06 0·23±0·06 <0·15 −0·14 129-day 123Sn <0·5 <0·2 >0·5 9·6-min 125Sn 0·65 +0·10 0·35±0·10 <0·5 −·35 9·6-day 125Sn <0·5 <0·05 >0·5 4·4-min 127Sn <0·25 2·1-hr 127Sn 0·06±0·02 59-min 128Sn <0·01 In addition it was determined that 0·55±0·15 of the short-lived (30-sec) 121In is formed by beta decay of 13-sec 121Cd. The sums of independent yield of the 123Sn isomers and of the 125Sn isomers are considerably greater than those estimated from extrapolated nuclear-charge distribution parameters. This apparent yield enhancement is attributed mainly to the closure of the 50-proton shell.

There are no comments yet on this publication. Be the first to share your thoughts.

Statistics

Seen <100 times
0 Comments

More articles like this

Chemical behavior of short-lived tin fission produ...

on Journal of Inorganic and Nucle... Jan 01, 1973

Chemical behaviour of tin fission products

on Journal of Inorganic and Nucle... Jan 01, 1967
More articles like this..