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In absorption meter, the two halves of the X-ray beam are allowed to fall on which of the following components?

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In absorption meter, the two halves of the X-ray beam are allowed to fall on which of the following components?

(a) Collimator

(b) Filter

(c) Photomultiplier tube

(d) Attenuator

The question was posed to me in exam.

This key question is from X-Ray Absorption Meter topic in portion X-Ray Spectrometers of Analytical Instrumentation

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Best answer
The correct choice is (c) Photomultiplier tube

To elaborate: In absorption meter, the two halves of the X-ray beam are allowed to fall on the photomultiplier tube. One beam passes through the sample and the other beam passes through the reference.

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