Neutron Capture by Uranium-238

238U + 1n → 239U → 239Np → 239Pu

概述

Uranium-238 captures a neutron to form uranium-239, which beta decays (23.5 min) to neptunium-239, which beta decays (2.36 days) to fissile plutonium-239. This breeding reaction produces more fissile material in fast breeder reactors than is consumed, potentially extending nuclear fuel reserves by a factor of 60.

参与者

角色 物质 系数 状态
反应物 Uranium U 1 (s)
产物 Plutonium Pu 1 (s)

日常示例

In every nuclear reactor, some U-238 converts to Pu-239 by this process, contributing about one-third of the energy produced.

工业重要性

铀-238的中子俘获增殖是核燃料循环的核心，快中子增殖堆（如俄罗斯BN-800）通过将天然铀中99.3%的U-238转化为可裂变钚，大幅提高核燃料利用率。

属性

类型
Nuclear
可逆
否
能量
放热
ΔH
-500000000.0 kJ/mol

相关反应

Alpha Decay of Radium-226 Alpha Decay of Radon-222 Alpha Decay of Thorium-232 Beta Decay of Iodine-131 Beta Decay of Strontium-90 Alpha Decay of Polonium-210 Americium-241 Alpha Decay Beta Decay of Cobalt-60 Plutonium-239 Fission Electron Capture by Beryllium-7

Frequently Asked Questions

What is the equation for Neutron Capture by Uranium-238?
The balanced equation is: ²³⁸U + ¹n → ²³⁹U → ²³⁹Np → ²³⁹Pu.
What type of reaction is Neutron Capture by Uranium-238?
Neutron Capture by Uranium-238 is a nuclear reaction.
Is Neutron Capture by Uranium-238 exothermic or endothermic?
Neutron Capture by Uranium-238 is exothermic (releases energy). The enthalpy change (ΔH) is -500000000.0 kJ/mol.