This article briefly describes the thoughts, key points and test result of a low noise pulse amplifier used in Laser Isotope Mass Spectrometer.

本文简要介绍了用于激光共振电离质谱实验的低噪声脉冲放大器的设计思路、实现的要点及其测试结果。

youdao

System stability (Ss) is one of the most important specifications of the Isotope mass spectrometer (IMS). It influences the quality of the data detected by the IMS directly.

同位素质谱仪的系统稳定性是衡量同位素质谱仪质量的重要指标之一，它直接影响检测数据的准确度与精确度。

youdao

Changes of nuclear mass and nuclear size cause isotope shifts.

原子核质量和大小的不同引起同位素移动。

youdao

The most likely alternatives, butter and pig fat, were ruled out using a technique called isotope-ratio mass spectrometry, which measures the molecular weights of the chemicals in a sample.

ECONOMIST: The Romans, too, had sophisticated cosmetics