Flik

This article is about a unit of measure. For the Disney character, see List of A Bug's Life characters. For the Hungarian airline, see Flik 14. For the title "Flik and Flok", see Flik and Flok (disambiguation).

In radio astronomy, the unit flik was coined by a group at Lockheed in Palo Alto, California as a substitute for the SI derived unit W cm−2 sr−1 µm−1, or watts divided by centimeters squared, steradians, and micrometers.[1]

This is primarily used as a unit of spectral radiance or sterance. While it started out used only in Lockheed, many in the radio astronomy field adopted its use.

References

  1. Schlessinger (1994). Infrared Technology Fundamentals, 2nd ed. CRC Press. p. 21. ISBN 9780824792596.


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