He developed the X-ray florescence analytical method, and discovered the Samarium alpha-ray.
From the en.wikipedia.org
During the investigation of radioactivity he coined the terms alpha ray and beta ray in 1899 to describe the two distinct types of radiation emitted by thorium and uranium.
From the en.wikipedia.org
Examination with Spirit's alpha particle X-ray spectrometer confirmed silica at Stapledon.
From the sciencedaily.com
Gellert is the lead scientist for the rover's alpha particle X-ray spectrometer, an instrument on the arm used for identifying key elements in an object.
From the sciencedaily.com
The rover drove close enough to use its Moessbauer and alpha particle X-ray spectrometers, confirming the meteorite identification over the weekend.
From the sciencedaily.com
Using an alpha particle X-ray spectrometer, a device that can identify chemical elements, scientists have identified a high concentration of sulfur in the bedrock.
From the cnn.com
This weekend two more instruments, the Mossbauer and alpha particle X-ray spectrometers, are expected to begin analyzing the chemistry of the rocks and soil.
From the cnn.com
It has touched rocks with the alpha particle X-ray spectrometer at the end of its arm, and shot the ChemCam laser on its mast at spots up to 23 feet away to analyze the rock it vaporizes.
From the latimes.com
Alpha particles, beta particles and gamma ray radiation were discovered by Ernest Rutherford through simple experimentation.