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In article <14380@venera.isi.edu> sllu@ISI.EDU (Shih-Lien Lu) writes:
>will detect UV light only (200nm to 400 nm wave length)?
>If not, is there any device that will detect light down to 200 nm wave
>length?
>Thank you in advance.
>
>
>Shih-Lien Lu
Many Silicon photodiodes (no biased types) will detect photons down to
that wavelength as long as they have a quartz window on the package. A
device which I have used with great success is made by EG&E
Electro-Optics Div. Model UV-215B. It has very good quantum efficiency
in the near-IR (~80%) and maintains good response down to O2 absorbtion
bands (~180nm). You'll need a stable, quiet, I/E converter with a gain
of about 1.0E9 or more. As far as limiting the response of a detector
to only the UV, try getting a Corion, Schott, or Corning filter
catalog. I know they have "Solar Blind" devices. Hope this helps.
Regards, J.Barby