Measurement of Quench Coefficient on CFBR-II

It describes the principium and method of measuring quench coefficient on CFBR-Ⅱ.Through the Model of Fuchs-Hansen the coefficient is obtained from peak power and super prompt reactivity of burst pulse. The two factors are measured by fast scintillator detector.The quench coefficient on CFBR-Ⅱis 8.6×10~(-18) $/f fitting experimental data of peak power and super prompt reactivity.