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Resonant photoacoustic spectrometer enhanced by multipass absorption for detecting atmospheric CH(4) at the ppb-level
A resonant photoacoustic spectrometer (PAS) was developed for detecting trace atmospheric CH(4). The sensitivity of the PAS was significantly increased via a Herriott-type multipass cell with a beam pattern concentrated in the cavity. The effective optical pathlength of the PAS can be optimized to 6...
| Autores principales: | , , , , , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
Frontiers Media S.A.
2022
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9532541/ https://www.ncbi.nlm.nih.gov/pubmed/36212055 http://dx.doi.org/10.3389/fchem.2022.1021145 |