CAJ | 학술논문

基于数字示波器和通用计算机，利用LabVIEW软件，开发了一套核分析信号能谱测量系统。为了验证系统的可靠性，应用该系统测量了241 Amα粒子的电荷积分能谱，并在相同条件下与多道采集卡的结果进行比较。实验结果表明：该系统与多道获得的241 Am电荷积分能谱图基本一致；当信噪比高于7：1时，系统能谱的非线性小于1%；当信号频率大于示波器采样率时，存在数据丢失但不影响能谱的特点。研究结果表明，在能谱信号频率不高的情况下，基于示波器的数据采集系统的能谱线性和稳定性很好，能满足测量要求。
기우수자시파기화통용계산궤，이용LabVIEW연건，개발료일투핵분석신호능보측량계통。위료험증계통적가고성，응용해계통측량료241 Amα입자적전하적분능보，병재상동조건하여다도채집잡적결과진행비교。실험결과표명：해계통여다도획득적241 Am전하적분능보도기본일치；당신조비고우7：1시，계통능보적비선성소우1%；당신호빈솔대우시파기채양솔시，존재수거주실단불영향능보적특점。연구결과표명，재능보신호빈솔불고적정황하，기우시파기적수거채집계통적능보선성화은정성흔호，능만족측량요구。
A nuclear energy spectrum data acquisition ( DAQ ) system based on oscilloscope and computer was developed under LabVIEW. In order to verify the reliability of the oscilloscope DAQ system, it was tested with alpha particles of 241 Am, and the results were compared with those meas-ured by multi-channel card in the same conditions. The results showed that the energy spectrum by oscilloscope DAQ system is consistent with those of by multi-channel card. Energy nonlinearity is less than 1% with the signal to noise ratio above 7:1 . Data loss when signal frequency was higher than the sampling rate of the oscilloscope. The results indicated that energy linear and stability of the oscilloscope DAQ system satisfy the measurement requirements in the condition of low frequency.