CAJ | 학술논문

复杂物质的放射性核素定量分析一直是放射性活度测量中的瓶颈，根据核电站事故条件下反应堆安全壳卸压排气监测的需求设计了一套在线监测的放射性气体探测装置，并利用MCNP计算程序对该方案性能进行了模拟计算。结果表明在选择合理的测量准直孔径、屏蔽方案等条件下，该装置可很好地实现安全壳卸压排气活度监测和特征核素分析。通过模拟计算与实验数据的对比表明，模拟计算结果真实可靠，可为核电站卸压排气放射性监测设备的研制提供重要的理论支持和参考。
복잡물질적방사성핵소정량분석일직시방사성활도측량중적병경，근거핵전참사고조건하반응퇴안전각사압배기감측적수구설계료일투재선감측적방사성기체탐측장치，병이용MCNP계산정서대해방안성능진행료모의계산。결과표명재선택합리적측량준직공경、병폐방안등조건하，해장치가흔호지실현안전각사압배기활도감측화특정핵소분석。통과모의계산여실험수거적대비표명，모의계산결과진실가고，가위핵전참사압배기방사성감측설비적연제제공중요적이론지지화삼고。
Quantitative analysis of radioactive nuclide of complex materials is always the bottle neck in the radio -activity measurement .According to the requirements in the process of pressure relief and exhausting during the accident conditions of nuclear power plant , the theoretical design is made for the containment pressure relief and exhausting online activity detector of the nuclear power plant and in the mean time , the analog computation is made for the performance of the design proposal with the MCNP calculation procedure .The result shows that under the conditions of choosing the reasonable measuring collimation aperture and shielding plan , the device can realize monitoring the total activity of containment pressure relief and exhausting , and in the mean time , the characteristic nuclide analysis can be well realized .Through comparing the analog computation result with the test data , it shows that the result of analog computation is credible ,provide an important theory and reference for the develop of the containment pressure relief and exhausting activity detector of the nuclear power plant .