Radiation Effects in ¹²⁹I¹²⁹Xe Dating of Bjurböle Chondrules by Neutron Irradiation

Author

B. Srinivasan
Emmit Calvin Alexander Jr.
Oliver Manuel, Missouri University of Science and TechnologyFollow

Abstract

By irradiating a sample of Bjurböle chondrules in a "hard" neutron flux, ¹²⁶Xe is produced from ¹²⁷I via the (n, 2nβ) reaction and ¹²⁸Xe is produced from ¹²⁷I via the (n, γβ) reaction. Stepwise heating of the irradiated sample shows that the IXe record depends on which xenon isotope, ¹²⁶Xe or ¹²⁸Xe, is chosen as the iodine monitor. The pile-produced ¹²⁶Xe is preferentially released over pile-produced ¹²⁸Xe by the low extraction temperatures. This behavior shows radiation effects may play a major role in generating the low-temperature correlation of pile-produced ¹²⁸Xe with radiogenic ¹²⁹Xe, which has been previously attributed to the IXe record of slow cooling.

Recommended Citation

B. Srinivasan et al., "Radiation Effects in ¹²⁹I¹²⁹Xe Dating of Bjurböle Chondrules by Neutron Irradiation," Icarus, vol. 16, pp. 571 - 576, Academic Press Inc., Jun 1972.

The definitive version is available at https://doi.org/10.1016/0019-1035(72)90104-2

Department(s)

Chemistry

International Standard Serial Number (ISSN)

0019-1035

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1972 Elsevier, All rights reserved.

Publication Date

01 Jun 1972