Deep spectral CNN for laser induced breakdown spectroscopy
Journal Article
·
· Spectrochimica Acta. Part B, Atomic Spectroscopy
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
This work proposes a spectral convolutional neural network (CNN) operating on laser induced breakdown spectroscopy (LIBS) signals to learn to (1) disentangle spectral signals from the sources of sensor uncertainty (i.e., pre-process) and (2) get qualitative and quantitative measures of chemical content of a sample given a spectral signal (i.e., calibrate). Once the spectral CNN is trained, it can accomplish either task through a single feed-forward pass, with real-time benefits and without any additional side information requirements including dark current, system response, temperature and detector-to-target range. Our experiments demonstrate that the proposed method outperforms the existing approaches used by the Mars Science Lab for pre-processing and calibration for remote sensing observations from the Mars rover, ‘Curiosity’.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE; USDOE Laboratory Directed Research and Development (LDRD) Program
- Grant/Contract Number:
- 89233218CNA000001
- OSTI ID:
- 1770112
- Alternate ID(s):
- OSTI ID: 1815219
- Report Number(s):
- LA-UR--20-28315
- Journal Information:
- Spectrochimica Acta. Part B, Atomic Spectroscopy, Journal Name: Spectrochimica Acta. Part B, Atomic Spectroscopy Vol. 178; ISSN 0584-8547
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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