| Main Title |
Development of a gas laser system to measure trace gases by long path absorption techniques : Volume I - Gas laser system modifications for ozone monitoring. Final report / |
| Author |
Craig, S. E.
|
| CORP Author |
General Electric Co., Pittsfield, Mass. Ordnance Systems.;National Environmental Research Center, Research Triangle Park, N.C. Chemistry and Physics Lab. |
| Publisher |
U.S. Environmental Protection Agency, |
| Year Published |
1974 |
| Report Number |
EPA-650/ 2-74-046a; OS-74-13; EPA-68-02-0757 |
| Stock Number |
PB-236 678 |
| OCLC Number |
09623652 |
| Subjects |
Air pollution ;
Gas detectors ;
Remote sensing ;
Ozone
|
| Additional Subjects |
Gas lasers ;
Remote sensing ;
Gas detectors ;
Ozone ;
Monitors ;
Air pollution ;
Design ;
Infrared spectroscopy ;
Spectroscopic analysis ;
Signal processing ;
Carbon dioxide lasers ;
Carbon dioxide ;
Water vapor ;
Ethylene ;
Ammonia ;
Absorption spectra ;
Air pollution detection ;
Long path infrared spectroscopy
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD |
EPA-650-2-74-046-a |
|
Headquarters Library/Washington,DC |
07/17/2014 |
| EKBD |
EPA-650/2-74-046a |
|
Research Triangle Park Library/RTP, NC |
11/16/2016 |
| ELBD ARCHIVE |
EPA-650-2-74-046-a |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| NTIS |
PB-236 678 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
vi, 142 pages : illustrations, diagrams ; 28 cm |
| Abstract |
Modifications of a gas laser system for long path monitoring of trace atmospheric constituents by infrared absorption are described. Modifications were made in preparation for an ozine field measurement program reported in Volume II wherein path monitor data were compared with those from a point monitor moved along the optical path. System modifications included incorporating a digital signal processor in the system and a spatial filter in the laser beam. Spectral studies of ozone, carbon dioxide, water vapor, ethylene and ammonia are presented in connection with the selection of laser wavelengths used in the system to discriminate ozone effects from interferences. Design considerations and a proposed configuration for an isotopic CO2 laser are presented. |
| Notes |
"EPA 650-2-74-046a." "June 1974." |
| Place Published |
Research Triangle Park, N. Car. |
| Supplementary Notes |
See also Volume 2, PB-236 679. |
| PUB Date Free Form |
1974 |
| Ti Tra Differently |
Gas laser system modifications for ozone monitoring. |
| NTIS Prices |
PC A07/MF A01 |
| BIB Level |
m |
| Medium |
unmediated |
| Content |
text |
| Carrier |
volume |
| Cataloging Source |
OCLC/T |
| OCLC Time Stamp |
20161104064524 |
| Language |
eng |
| Origin |
OCLC |
| Type |
MERGE |
| OCLC Rec Leader |
01224cam 2200325Ia 45010 |
