Table 4
Main beam efficiencies computed from the simulated beams using a cut-off radius of 2.5 × FWHM.
| Horn | Main OMT | Side OMT | Mean | (Diff) OMT | |
|
|
|||||
| 70 GHz | |||||
| LFI-18 | 0.99345 | 0.99262 | 0.99304 | –0.00082 | |
| LFI-19 | 0.99270 | 0.99206 | 0.99238 | –0.00065 | |
| LFI-20 | 0.99111 | 0.99084 | 0.99098 | –0.00027 | |
| LFI-21 | 0.99115 | 0.99105 | 0.99110 | –0.00010 | |
| LFI-22 | 0.99259 | 0.99184 | 0.99222 | –0.00075 | |
| LFI-23 | 0.99360 | 0.99274 | 0.99317 | –0.00086 | |
|
|
|||||
| 44 GHz | |||||
| LFI-24 | 0.99762 | 0.99826 | 0.99794 | 0.00064 | |
| LFI-25 | 0.99788 | 0.99792 | 0.99790 | 0.00005 | |
| LFI-26 | 0.99787 | 0.99793 | 0.99790 | 0.00006 | |
|
|
|||||
| 30 GHz | |||||
| LFI-27 | 0.99247 | 0.99282 | 0.99264 | 0.00036 | |
| LFI-28 | 0.99230 | 0.99284 | 0.99257 | 0.00054 | |
Notes. Efficiencies from the OMT’s main and side arm are reported in the first two columns, the average value of the two arms is reported in the third column, and the difference between the two arms is reported in the last column.
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