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The reduction in counting efficiency of the scintillation detector is called as __________

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The reduction in counting efficiency of the scintillation detector is called as __________

(a) Disintegration

(b) Decay

(c) Quenching

(d) Reduction

The question was asked at a job interview.

My doubt stems from Liquid Scintillation Counters topic in chapter Radiochemical Techniques of Analytical Instrumentation

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Correct option is (c) Quenching

The explanation: The reduction in counting efficiency of the scintillation detector is called as quenching. Substances added to the counting vial can reduce efficiency.

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