In order to shorten the boron meter calibration test time,improve the online available efficiency of the boron meter and reduce the dose of the calibration operator,a rapid calibration method was discussed.According to the measurement range of the boron meter and the theoretical calculation basis,four calibration points were selected and four groups of calibration data(n,P)were obtained through the calibration test.Using this rapid calibration method,the calculation research was carried out during the calibration test of boron meter in nuclear power plant,and the experimental verification was carried out on different boron meter equipment,and the test data obtained met the error requirement of boron meter measurement.The rapid calibration time takes about 5 hours,which can save more than 65%of the time compared with the current conventional calibration time.Even if the boron meter fails during monitoring operation,the boron meter can be put into normal monitoring operation after rapid calibration,which improves the real-time online monitoring efficiency of primary circuit boron concentration of nuclear power plant and reduces the probability of introducing positive reactivity accidents due to accidental dilution of boron concentration in nuclear power plant.To a certain extent,the safeties of the nuclear power plant operation and the dose of the calibration operator are ensured.
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