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ゼロ反応度温度係数体系の第1ピーク出力の逆ペリオド依存性

Dependency of first peak power on reciprocal period in zero reactivity temperature coefficient system

山根 祐一  

Yamane, Yuichi

反応度温度係数がゼロであるような核燃料溶液体系において生じる臨界事故において、第1ピーク出力が逆ペリオドにどのように依存するか調べたところ、放射線分解ガス及び沸騰によるボイドが溶液沸騰直後に生じる条件では、逆ペリオドに比例するとともに、初期温度と沸点との温度差に応じて非常に大きな値を示すことがわかった。

In the criticality accident of nuclear solution fuel for which reactivity temperature coefficient was zero, the dependency of the first peak power on its reciprocal period was investigated and it was found that the first peak power was proportional to the reciprocal period and showed large value depending on the difference between the initial and boiling temperature under the condition in which radiolytic dissolution gas and boiling gas void be effective right after the beginning of boiling of the solution.

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