Invention Grant
- Patent Title: Laser ablation spectrometry apparatus
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Application No.: US18098083Application Date: 2023-01-17
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Publication No.: US11768157B2Publication Date: 2023-09-26
- Inventor: Jong Hyun Yoo , Chunyi Liu , Richard E. Russo
- Applicant: Applied Spectra, Inc.
- Applicant Address: US CA West Sacramento
- Assignee: Applied Spectra, Inc.
- Current Assignee: Applied Spectra, Inc.
- Current Assignee Address: US CA Sacramento
- Agency: Microtechnology Law & Analysis
- Agent Daniel L. Flamm
- Main IPC: G01N21/71
- IPC: G01N21/71 ; B23K26/04 ; H01J49/04 ; H01J49/10 ; H01J49/00

Abstract:
Apparatus for laser induced ablation spectroscopy (LIBS) is disclosed. An apparatus can have a computer, a pulsed laser and a lightguide fiber bundle that is subdivided into branches. One branch can convey a first portion of the light to a first optical spectrometer and a different branch can convey a second portion of the light to another optical spectrometer. The first spectrometer can be relatively wideband to analyze a relative wide spectral segment and the other spectrometer can be high dispersion to measure minor concentrations. The apparatus can further comprise an unbranched lightguide fiber bundle to provide more light to a low sensitivity spectrometer. The apparatus can include an inductively coupled plasma mass spectrometer ICP-MS and a computer instructions operable to provide normalized LIBS/ICP-MS composition analyses.
Public/Granted literature
- US20230152236A1 LASER ABLATION SPECTROMETRY APPARATUS Public/Granted day:2023-05-18
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