Beta Decay of Cesium-137

137Cs → 137Ba + e− + ν̄e + γ

Обзор

Cesium-137 beta decays to barium-137m (metastable), which then emits a 662 keV gamma ray to reach stable barium-137. Cs-137 has a half-life of 30.2 years and is a major fission product. It is water-soluble and mimics potassium biologically, distributing throughout soft tissues.

Участники

Роль Вещество Коэффициент Состояние
Реагент Cesium Cs 1 (s)
Продукт Barium Ba 1 (s)

Пример из жизни

Cs-137 is used in industrial level and thickness gauges, and in radiation therapy devices. The Goiânia accident in Brazil showed its hazards.

Промышленное значение

Cs-137 is used in industrial gauging, well logging in oil exploration, food irradiation, and as a calibration source for radiation detectors.

Свойства

Тип
Nuclear
Обратимая
Нет
Энергия
Экзотермическая
ΔH
-127000000,0 kJ/mol

Связанные реакции

Alpha Decay of Radon-222 Neutron Capture by Uranium-238 Beta Decay of Strontium-90 Beta Decay of Cobalt-60 Beta Decay of Carbon-14 Proton-Proton Chain (Solar Fusion) Uranium-235 Fission Positron Emission of Carbon-11 Positron Emission of Fluorine-18 (PET Scan) Alpha Decay of Radium-226

Frequently Asked Questions

What is the equation for Beta Decay of Cesium-137?
The balanced equation is: ¹³⁷Cs → ¹³⁷Ba + e⁻ + ν̄ₑ + γ.
What type of reaction is Beta Decay of Cesium-137?
Beta Decay of Cesium-137 is a nuclear reaction.
Is Beta Decay of Cesium-137 exothermic or endothermic?
Beta Decay of Cesium-137 is exothermic (releases energy). The enthalpy change (ΔH) is -127000000.0 kJ/mol.