Detailed decay information for the isotope xenon-138 including decay chains and daughter products.

Of known isomers, the longest-lived is 131m Xe with a half-life of 11.934 days. 129 Xe is produced by beta decay of 129 I (half-life: 16 million years); 131m Xe, 133 Xe, 133m Xe, and 135 Xe are some of the fission products of both 235 U and 239 Pu, so are used as indicators of nuclear explosions.

Dec 1, 2018 · This work presents the last updated evaluations of the nuclear and decay data of the four radioxenon isotopes of interest for the Comprehensive Nuclear-Test-Ban Treaty (CTBT): Xe-131 m, Xe-133, Xe-133 m and Xe-135.

Jul 24, 2020 · A plot is provided to show the simultaneous decay rates and ingrowth, as well as a table of activities for each chain member at time T. The activities can then be used to compare to various Preliminary Remediation Goals (PRGs), Dose Compliance Concentrations (DCCs), and calculate risk or dose.

Jun 1, 2010 · β-decay of 133 Xe and 135 Xe and defined peaks from the monoenergetic conversion electrons from 133m Xe and 131m Xe, which are immediately followed by X-rays.

Thus direct production of Xe-135 from fission is about 5% of the total production at equilibrium while indirect production from the decay of 1-135 is 95% of the total production. In examining the loss terms, note that the loss due to decay depends only on the decay constant (Axe). The loss due to burnout depends on the cross section (cr xe) and

The 129 I-129 Xe decay scheme has been used as a geochronometer based on the time-dependent decrease of the ratio of the radioactive 129 I to stable 127 I in the solar nebula. The I-Xe method of dating gives the time elapsed between nucleosynthesis and the condensation of a solid object from the solar nebula.

Detailed decay information for the isotope xenon-137 including decay chains and daughter products.

Little Xe-135 results directly from fission, but most comes from the decay chain, Te-135 (β – decay, 0.5 min) to I-135 (β – decay, 6.6 hr) Xe-135. The instantaneous production rate of xenon-135 is dependent on the iodine-135 concentration and, therefore, on the local neutron flux history.

Nov 1, 2014 · 131 Xe, 132 Xe, 134 Xe, and 136 Xe are the stable, terminal nuclides to which short-lived fission products in their respective decay chains transmute in the general order Sn → Sb → Te → I → Xe (Fig. 2).