Anyone have a short-wavelength UV fluorescent tube?

Frangible · #1 10-13-2005, 03:53 PM

I have a UV LED flashlight that's about ~395nm, and a fluorescent tube that's about 365nm. I notice that pet urine, my main use of UV, is significantly easier to see with the shorter wavelength.

Does anyone have a short-wave tube (~240nm)? What are the differences in urine visibility between 365nm vs. 240nm? Is there a specific wavelength that is optimal for urine detection?

Thanks.

PhotonWrangler · #2 10-13-2005, 03:55 PM

My experience has been that urine fluoresces better under longwave UV than shortwave. I have a shortwave lamp, and when I'm out at night using it for rock hunting, I almost never notice urine stains with it, while I do see them with longwave. Shortwave is better for fluorescing many types of minerals but that's about it.

Frangible · #3 10-13-2005, 04:11 PM

Quote:

Originally Posted by PhotonWrangler

My experience has been that urine fluoresces better under longwaver UV than shortwave. I have a shortwave lamp, and when I'm out at night using it for rock hunting, I almost never notice urine stains with it, while I do see them with longwave. Shortwave is better for fluorescing many types of minerals but that's about it.

Thanks, I appreciate the information.