Visual Magnitude Flux Rate Density Standards for Sunlight Incident on Photoemissive Surfaces.
MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB
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Based on the spectrum of the real sun, a zero visual magnitude photon flux rate density of 5.00 x 10 to the 10th power psq. m-sec is calculated for a bandwidth of 0.300 micrometer to 0.920 micrometer, a range corresponding to the useful responsivity-bandwidths of both S-20 and S-25 photosurfaces. Over this bandwidth, the average quantum efficiencies of the photosurfaces are shown to agree to within 0.1 percent at a value of 7.2 percent. Finally, photon and photoelectron flux rate densities are calculated for sources of varying visual magnitudes and for transmission through one to five standard air masses. Author
- Electrical and Electronic Equipment