I’m working on a project for my engineering class that measures a certain amount of light. I need to use photocells or photodiodes to measure this light. Neither I nor any of my partners have any experience with this type of thing, and photocells seem easier to work with, so that’s what I’d like to use.
We’re measuring Cherenkov radiation, a kind of light radiation emitted in a nuclear reactor pool. The light has a wavelength of specifically 400-490 nm, and I’d like to make sure that this kind of photosensor would work for that wavelength, as I didn’t see it specified in the product info.
Any advice at all would be appreciated- I don’t know what I’m doing.
Thanks!
That one won’t work very well for that range http://cdn.sparkfun.com/datasheets/Sens … -09088.pdf
This https://www.sparkfun.com/products/17719 has decent coverage , reporting 415nm, 445nm, 480nm, 515nm, 555nm, 590nm, 630nm, 680nm, clear and near infrared responses
Or this https://www.sparkfun.com/products/15050 would likely be best, as it has broad coverage including 410nm 435nm 460nm 485nm 510nm
https://cdn.sparkfun.com/assets/c/2/9/0 … asheet.pdf
Check out the hookup guide for any of those to see how they operate (under the ‘documents’ tab)
“We’re measuring Cherenkov radiation”
If you are measuring fast pulses, then you need a photodiode sensitive to the range, with appropriate photodiode amplifier and fast electronics.
For steady state “blue glow” one of the wavelength-sensitive integrating sensor options listed above is fine.