Measurement of collision broadening of the calcium resonance line by low resolution spectroscopy
The Lorentzian half-widths of the Ca λ4227 Å (4 s 2 1 S 0−4 s4 p 1 P 1) line in the impact regime have been measured by low resolution spectroscopy. They were determined from measurements of the total absorption of both a white source and an emission line of the same transition. The absorption cells...
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| Published in | Journal of quantitative spectroscopy & radiative transfer Vol. 22; no. 5; pp. 489 - 497 |
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| Main Authors | , , |
| Format | Journal Article |
| Language | English |
| Published |
Elsevier Ltd
01.11.1979
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| Online Access | Get full text |
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| Summary: | The Lorentzian half-widths of the Ca λ4227 Å (4
s
2
1
S
0−4
s4
p
1
P
1) line in the impact regime have been measured by low resolution spectroscopy. They were determined from measurements of the total absorption of both a white source and an emission line of the same transition. The absorption cells contained calcium at about 410°C with a perturbing gas of argon at pressures of up to about 50 cm of Hg. Corrections were applied to account for the width of the emission line and the non-transparency of the absorption cells. High resolution measurements of absorption profiles from a grating spectrometer are also described and the results of both methods are compared. |
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| Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
| ISSN: | 0022-4073 1879-1352 |
| DOI: | 10.1016/0022-4073(79)90086-4 |