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Registered Member #60240
Joined: Mon May 16 2016, 07:01PM
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The spectra are Hg spectra, photographed from a Canon 10D, with increasing intensity from top to bottom, light source is a Hg high pressure lamp, the entrance slit is imaged with a quartz lens via a reflection grating on a zinc sulfide screen:
Registered Member #61406
Joined: Thu Jan 05 2017, 11:31PM
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The Hg lamp is a growing lamp for the vegetable stack, the green growing phase, its mostly blue colour, the uv spectrum is below that, but your getting swamped by the ratio of uv to 420nm,try using a class A uv light from a suppler and then calibration from there
Registered Member #60240
Joined: Mon May 16 2016, 07:01PM
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Hi Plasma
I did not understand your response. "but your getting swamped by the ratio of uv to 420nm,try using a class A uv light from a suppler and then calibration from there"
Please, could you explain me your answer one more time?
The purpose of my research here is to study different screens for their sensitivity to UV radiation. This is a comparison between a of zinc sulfide screen to the already used UV screen
Zinc sulphide screen: UV screen
With comparable intensity of the visible lines, the UV screen shows significantly more UV lines.
Registered Member #61406
Joined: Thu Jan 05 2017, 11:31PM
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Wouldn't the zinc sulfide reradate the ionizes from the uv at a different frequency. get just a uv source, a lighting supplier can sell you just a party lamp, which would have a lot less noise on the ouput
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UV lines of mercury spectra at a ZnS screen
