ABSORPTION COEFFICIENTS OF GASES IN THE RANGE FROM 100 A TO 500 A.
Abstract
Absorption spectra were obtained between 500 and 100 A (25-125 eV) for several gases: NO, CO, CO2, H2O, NH3, CH4 using a grazing incidence grating spectrograph, a condensed spark as the continuum background and very thin layers of appropriate materials for cell windows. This region is characterized by continuous absorption rapidly decreasing towards short wavelengths, commonly attributed essentially to photoionization processes. Whenever possible, our results (near 500 A) are compared to results of other authors, and, generally, the agreement is very satisfactory. Some interesting comparisons can be made between the absorption curves of similar molecules such as for example H2O, NH3 and CH4. Except for CH4 it is not possible to relate experimental results to those calculate as an adequate theory has yet to be developed. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 31, 1968
- Accession Number
- AD0689858
Entities
People
- Boris Vodar
Organizations
- National Center for Scientific Research