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I am just guessing on this based on the reference you posted in the comments. Sometimes dB's are referenced to a max level, like with audio at 120dB. In this case they look at the difference between the maximum. In your case, 10,000 is the max, or 40 dB. Based on this scale comparison: I would guess apostilibs to dB is done like this: $dB = 40 - ...


It looks to me like they mean J/cm^2 doesn't it - but they may well just be pulling numbers out of the air. To be electromagnetic flux is should be W/cm^2 - but it looks like a dosage is intended. 440J/treatment over 582cm^2 is 0.756J/cm^2 per treatment. But that just means that the little "j" does not mean what we think it does. AFAIK: there is no ...

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