spontaneous radiation

Stimulated Radiation and Amplified Spontaneous Radiation

受激辐射与放大的自发辐射

Single photon ionization and fragmentation of benzonitrile is studied using synchrotron radiation. The ionization potential of benzonitrile, and the appearance potentials of spontaneous or prompt and metastable fragment ions for different flight time are measured precisely.

用同步辐射研究苯基氰分子的单光子电离与碎解，精确地测量它的电离势、在不同的飞行时间产生的自发的和亚稳态碎片离子的出峰电势（appearance potential）。

The total infrared radiation was divided into the spontaneous emission and the reflection radiation, and the formulas for spontaneous and reflection radiant intensity were given respectively.

将总红外辐射分解为自发辐射和反射辐射两部分，分别给出了计算自发辐射强度和反射辐射强度的计算式。

Radioactive material refers to material that may emit ionizing radiation by spontaneous nuclear transformation.

三放射性物质:指可经由自发性核变化释出游离辐射之物质.

The other is a spontaneous radiation process mainly due to Cherenkov resonance.

另一种是自发辐射,主要来自契仑柯夫共振.