Carbon Monoxide Analyzer (CO-ANALYZER) Instrument Handbook
- Brookhaven National Lab. (BNL), Upton, NY (United States)
The N2O/CO analyzer uses LGR’s patented Off-axis ICOS technology, which employs a high-finesse optical cavity as the measurement cell. LGR’s technology has many proven advantages over conventional first-generation cavity ringdown spectroscopy (CRDS) techniques. In brief, since the laser beam does not have to be resonantly coupled to the measurement cell, precise beam alignment is not critical. Mentors can disassemble the cell for cleaning (CAREFULLY) the front surface mirrors. Analyzers are relatively inexpensive and inherently robust thermally and mechanically. In addition, since LGR’s technology can record reliable absorption spectra over a far wider range of optical depths (absorbance values) than CRDS, LGR analyzers provide measurements over a much wider range of mixing ratios (gas concentrations). The N2O/CO analyzer includes an internal computer that sends real-time data to the local instrument computer through its digital (RS-232) output.
- Research Organization:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (United States). Atmospheric Radiation Measurement (ARM) Program
- Sponsoring Organization:
- USDOE Office of Science (SC), Biological and Environmental Research (BER)
- DOE Contract Number:
- AC05-7601830
- OSTI ID:
- 1495422
- Report Number(s):
- DOE/SC-ARM-TR-159
- Country of Publication:
- United States
- Language:
- English
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