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In Reply to: RE: Tube Handling posted by Alpha Al on July 29, 2021 at 09:03:38
ABsolutely.
Same goes for hte lamps used in the semiconductor processing. those lamps are HOT ......
the 1KW lamps used in some equipment are as pictured at the link......
The USHIO lamps were pretty much ALL I ever saw.
Too much is never enough
Follow Ups:
Back in the day, I worked in the printing field in the prepress section of a large commercial printing plant. We used pulse xenon lamps rated from 1Kw to 10Kw for exposing daylight films, proofing materials as well as printing plates. These lamps regularly were replaced once a year or sooner in case of failure. Cotton gloves were required to keep fingerprint oils off of the quartz glass in order to avoid a future hot spot where the lamp would fail. Costing well over $100 a piece we took precautions. Those conditions do not cross over to tubes. I still use cotton gloves as I just hate seeing prints on tubes! Being fastidious became second nature as we worked in a mostly dust free, temperature controlled environment as contaminants were the bane of our existence.
Semiconductor Steppers for photolithography have smiilar rules of handling the lamps.
Lamps were replaced as OUTPUT fell.
Cleaning the mirrors and other internal optics of these critical pieces of equipment was NOT for the faint of heart.
And yes, finger oils and other contamination resulted in various nasties which included mopping up a MERcURY SPILL
this took place in a 'class 10' room.....10 particles of dust of a certain size PER CUBIC FOOT of air.
Entire ceiling is an air handler / HEPA filter system....
Too much is never enough
When I started we used carbon arc assemblies. Those were use in WW2 and before to light the sky! Ours were used indoors and exhausted indoors. Nasty. Thanks dawg we moved on...
The bulbs I used in my job were Mercury Arc Lamps in a fused quartz 'envelope'.
I've always wanted to RENT one of the old 60" Carbon Arc lights and experiment with Exterior Illumination. In MY town? No laws or ordinance limit such lighting.
Too much is never enough
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