Measurement of Reactivity Temperature Coefficient of CFBR-Ⅱ in Burst State
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Graphical Abstract
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Abstract
Reactivity temperature coefficient is one of important parameters of burst reactor. The methods of measuring the coefficient were introduced and analyzed. The whole process of burst is split into “peak” process and “tail” process. Reactivity reduction is twice as large as initial excess reactivity in “peak” process from FuchsHansen model. Increment of temperature induced by “peak” process was got through removing “tail”. So we deduced reactivity temperature coefficient of CFBR-Ⅱ αT=-0.00202 /K.
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