| 单词 | scintillation counter |
| 释义 | scintillation counter A type of particle or radiation counter that makes use of the flash of light (scintillation) emitted by an excited atom falling back to its ground state after having been excited by a passing photon or particle. The scintillating medium is usually either solid or liquid and is used in connection with a photomultiplier, which produces a pulse of current for each scintillation. The pulses are counted with a scaler. In certain cases, a pulse-height analyser can be used to give an energy spectrum of the incident radiation |
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