x-ray spectrometer

American

noun

a spectrometer using x-rays to activate the inner electrons of an atom in order to separate and identify the chemical constituents of a substance and their concentrations.

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x-ray spectrometer

The x-ray spectrometer protrudes over the rover’s front and rotates by 90 degrees to study the material below it.

From Scientific American ● Jul. 13, 2023

But, he adds, confirming the “ground truth” at Gale Crater requires tools Curiosity lacks, such as a very high-resolution x-ray spectrometer to better assess shifting elemental abundances.

From Scientific American ● Nov. 15, 2021

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023