CAJ | 학술논문

利用光电倍增管测量团簇的瑞利散射,信号幅度与团簇源背压有关,也与光源强度和光电倍增管工作电压有关.当团簇源背压变化范围较大时,散射信号幅度变化可能导致光电倍增管信号超出线性范围.为此,在不同的光源强度、不同的工作电压下对光电倍增管输出信号进行了刻度,得到了输出信号幅度随光源强度、工作电压之间的关系.用此关系.对不同条件下的实验数据进行归一化处理,得到了团簇散射因子随团簇源背压的关系曲线,与同类实验和理论结果相符.
이용광전배증관측량단족적서리산사,신호폭도여단족원배압유관,야여광원강도화광전배증관공작전압유관.당단족원배압변화범위교대시,산사신호폭도변화가능도치광전배증관신호초출선성범위.위차,재불동적광원강도、불동적공작전압하대광전배증관수출신호진행료각도,득도료수출신호폭도수광원강도、공작전압지간적관계.용차관계.대불동조건하적실험수거진행귀일화처리,득도료단족산사인자수단족원배압적관계곡선,여동류실험화이론결과상부.
In the experiments of Rayleigh scattering of gas-jet clusters, the singal amplitude of PMT is not only affected by duster itsself,but also by the intensity of light source and work voltage of PMT. When the back pressure of cluster source varies from 10 atm to about 100atm,the singal amplitude of PMT may be from linear to nonlinear. In order to solve the problem, signal calibration of PMT under different inten-sifies of light and voltage of PMT has been done. The relationship between the amplitude of signal and in-tensities of light as well as voltage of PMT has been obatainecL The function of scater facter of Ar clusters with the back pressure of cluster source is gotten experimentally, and agrees with related experimental and theoretical results.