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http://nopr.niscpr.res.in/handle/123456789/37254| Title: | On Collision Frequency in the F-region |
| Authors: | Ghosh, S N Sarkar, P K |
| Issue Date: | Feb-1978 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Attempts have been made to minimize the discrepancy between the experimental and theoretical values of collision frequency of electrons in the altitude range 200-400 km where the collision with atomic oxygen is predominant. The discrepancy is about two orders of magnitude. In the absence of experimental value of collision cross-section for momentum transfer of oxygen atoms with slow ionospheric electrons (0'02-0'1 eV), the velocity dependence of cross-section deduced by Mitra et at. [Mitra S K, Roy B B & Ghosh S B, Nature Land., 145 (1940),1017] and Bates and Massey [Bates D R & Massey HSW, Proc. R. Soc., 192A(1948), 1] from theoretical calculations has been used to resolve the discrepancy. |
| Page(s): | 46-50 |
| ISSN: | 0975-105X (Online); 0367-8393 (Print) |
| Appears in Collections: | IJRSP Vol.07(1) [February 1978] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJRSP 7(1) 46-50.pdf | 351.5 kB | Adobe PDF | View/Open |
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