How do you calculate photon flux from intensity and wavelength spectrum?

[phyzphys]

Hi!

I would like to ask if there is possible to find out the photon flux emitted by a uv source having only the intensity/wavelength spectrum of the source?

pp

 

[Vanadium 50]

Not without some units somewhere.

 

[phyzphys]

Counts/Integration time [13ms here] for the INTENSITY

 

[ZapperZ]

Counts/Integration time [13ms here] for the INTENSITY

That still doesn't say anything. It should be measuring power over the area of exposure, the latter is another quantity that you need.

Zz.