公开(公告)号：US20220244202A1

公开(公告)日：2022-08-04

申请号：US17591803

申请日：2022-02-03

Applicant: JEOL Ltd.

Inventor： Kazunori Tsukamoto ,  Shigeru Honda

IPC: G01N23/2252

Abstract: In an analyzer, an image processing unit performs processing of: dividing a measurement image into a plurality of partial measurement images, and dividing a reference image into a plurality of partial reference images; calculating a positional deviation amount of each of the partial measurement images relative to a corresponding partial reference image among the partial reference images; determining whether the positional deviation amount is a threshold or less; and correcting positional deviation of the measurement image based on the positional deviation amounts of the plurality of partial measurement images when the image processing unit has determined that the positional deviation amount is not the threshold or less.

公开(公告)号：US20210025838A1

公开(公告)日：2021-01-28

申请号：US16934340

申请日：2020-07-21

Applicant: JEOL Ltd.

Inventor： Kazunori Tsukamoto ,  Shigeru Honda

IPC: G01N23/2209 ,  G01N23/2252 ,  G01N23/2208

Abstract: An analyzer includes a wavelength-dispersive X-ray spectrometer and a control unit that controls the wavelength-dispersive X-ray spectrometer, the control unit performing: processing of acquiring an analysis result of preparatory analysis performed on a specimen to be analyzed; processing of setting spectroscopic conditions for WDS analysis using the wavelength-dispersive X-ray spectrometer based on the analysis result of the preparatory analysis; and processing of performing the WDS analysis on the specimen to be analyzed under the set spectroscopic conditions.

公开(公告)号：US10748741B2

公开(公告)日：2020-08-18

申请号：US16536562

申请日：2019-08-09

Applicant: JEOL Ltd.

Inventor： Kazunori Tsukamoto

IPC: G01N23/22 ,  H01J37/244 ,  H01J37/252

Abstract: An X-ray analyzer includes: an X-ray detector that detects an X-ray emitted from a specimen and outputs a signal having a step that has a height corresponding to energy of the X-ray; a pulse generation circuit that converts the signal output from the X-ray detector into a first pulse signal; a pulse-width setting circuit that sets a pulse width; a pulse-width conversion circuit that converts a pulse width of the first pulse signal into the pulse width set by the pulse-width setting circuit to form a second pulse signal; a pulse-height discriminator that discriminates the second pulse signal according to a pulse height of the second pulse signal; a counting circuit that calculates a counting rate of the discriminated second pulse signal; and a counting-loss correction processing unit that corrects the counting rate. The counting-loss correction processing unit corrects the counting rate based on the pulse width.