Patent ID: 9099281
Filing Date: 2015-08-04
Classification: G01N,H01J

Abstract:
1. A charged particle radiation apparatus, comprising: a sample holder including a sample stage to hold a sample; a sample chamber to which the sample holder is inserted; a gun to generate a charged particle beam to be applied to the sample; a detector to detect a radiation from the sample; and a processor to acquire an image from the radiation from the sample, wherein the sample holder includes a rotation mechanism including a rotary shaft being capable of rotating the sample stage around a rotation axis by a predetermined angle, and a shielding mechanism capable of forming an airtight chamber around the sample stage, and the charged particle radiation apparatus further comprising a piping to supply the sample with a medium which reacts to the sample, wherein at least a part of the piping is in the rotary shaft and the shielding mechanism; wherein the processor acquires a first image before supplying the medium, a second image after supplying the medium, three dimensional information from the first image and the second image, and a distance between rare metal catalyst particles.