Caesium-137 - Wikipedia
网页137 Cs decay scheme showing half-lives, daughter nuclides, and types and proportion of radiation emitted. 137 Cs gamma spectrum. The characteristic 662 keV peak does not originate directly from 137 Cs, but from the decay of 137m Ba to its stable state. Caesium-137 has a half-life of about 30.05 years. [1]
Isotope data for cesium-137 in the Periodic Table
网页Detailed decay information for the isotope cesium-137 including decay chains and daughter products.
Cesium-137 - isotopic data and properties - ChemLin
网页Properties and data of the isotope 137 Cs. Contents. General Data. Radioactive Decay. Parent Nuclides. Isotones und Isobares. Literature. See also: list of Cesium isotopes.
网页Cesium-137 emits beta particles as it decays to the barium isotope, Ba-137m (half life = 2.6 minutes). How are people exposed to cesium-137? People may be exposed externally to gamma radiation emitted by cesium-137 decay products. If very high doses are received, skin burns can result.
The Rich Physics of Cs-137 Gamma Spectrum – Maximus Energy
网页2020年10月24日 · Cs-137 beta decay modes. The diagram reads as follows: the element #55 – cesium (which is a spin 7/2 fermion with positive parity and the atomic weight of 137 amu) is not stable and decays with a half-life of 30.17 years by emitting a beta-particle (β is just another name for a high-energy electron).
Determination, Separation and Application of 137 Cs: A Review
网页2022年8月17日 · 137 Cs, as one of more than 30 isotopes of cesium, is fission a product of 235 U, whose decay chain is shown in Figure 1 [3,4]. 137 Cs decays to short-lived 137m Ba (T½ = 2.61 m) via emitting beta rays at maximum energies of 512 (94.0%) and 1176 keV (6.0%), respectively. 137m Ba emits gamma rays …
2. Cs-137 decay scheme. | Download Scientific Diagram
网页At the Idaho National Laboratory (INL) Cs-137 concentrations above the U.S. Environmental Protection Agency (EPA) risk-based threshold of 0.23 pCi/g may increase the risk of human mortality due...
The Risk Assessment Information System
网页Radionuclide chain decay scheme of Cs-137 showing its half-life (t 1/2) values in red and branching fractions in green. References: Eckerman, K., and A. Endo. "ICRP Publication 107.
网页Recommended Nuclear Decay Data Cs-137. Decay Mode: β ¯ Half-Life: (11000 ± 90) d
DDEP re-evaluation of the radioactive decay scheme of 137 Cs
网页2024年4月1日 · The 137 Cs decays by β − radioactivity to the ground and first two excited states of 137 Ba mainly populating the second excited state that depopulates predominantly via an intense 662-keV gamma ray. Even though the decay scheme of 137 Cs is simple, the evaluation of the component decay data has long been problematic.