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Don · 16th October 2005, 01:37 PM

When I went into a Japanese "communal" bath I learned that President Lincoln was wrong; all men WERE NOT created equal-LOL.

The same is true with UVR, i.e., all wavelengths are not alike in their tanning power. The "extraneous" peak at 352 nm is, I believe, an "artifact" of the some of the "overlay" Italian absorption filter and the 364/365 nm peak is simply an "enhanced" mercury line (i.e., 253.7; 312.7; 364/365; 404; 434/435 and 545/550). I agree that they "are there" and are integrated into the reading but they offer little or nothing of benefit (except for "bogus" marketing claims).

Regarding PMT's, these "strangely high" wavelengths forced me to characterize and calibrate a smaller aperture opening that I use when measuring these systems.

16th October 2005, 01:37 PM	#6 (permalink)
Don Veteran Join Date: Nov 2004 Location: USA Posts: 376	Re: highest output reading ever! When I went into a Japanese "communal" bath I learned that President Lincoln was wrong; all men WERE NOT created equal-LOL. The same is true with UVR, i.e., all wavelengths are not alike in their tanning power. The "extraneous" peak at 352 nm is, I believe, an "artifact" of the some of the "overlay" Italian absorption filter and the 364/365 nm peak is simply an "enhanced" mercury line (i.e., 253.7; 312.7; 364/365; 404; 434/435 and 545/550). I agree that they "are there" and are integrated into the reading but they offer little or nothing of benefit (except for "bogus" marketing claims). Regarding PMT's, these "strangely high" wavelengths forced me to characterize and calibrate a smaller aperture opening that I use when measuring these systems.