Sorry I'm not very good at this stuff. I read somewhere that a photodiode called BWP-34 could be used to measure gamma radiation. I don't really know what a photodiode is but I looked this thing up and found some data sheets but I just don't know how to turn that into a reading. I don't have links but all I did was google this so I'm sure you could do the same. How can I make this work and turn the data in to reading of wavelength or something similar. Thanks in advance.
A ‘real’ Geiger counter makes a pleasant ticking sound. Our diode
sensor, on the other hand, is completely silent.
We can remedy the situation with the help of a comparator and a
circuit to stretch the pulses so that we can drive a loudspeaker to
make clicks. The tested circuit shown here uses a type LM311 comparator
which produces a pulse on its output when the amplitude
of a pulse on its input exceeds a threshold set by the trimmer. The
transistor at the output stretches the pulse to make it audible. The
final output can be used to drive headphones, an audio amplifier
and a loudspeaker, or a PC-style active speaker.
was pretty slick.
Sorry I'm not very good at this stuff.
Have you heard of Google ? (I don't know anything about measuring radiation but I can build both of those circuits in a day. Note the component placement on the back side of perf board: see attached)
I don't know anything about gamma radiation. The BPW34 datasheet says it has a bandwidth of 600 - 1050nm with peak sensitivity at 900nm. That seems like the red to infra-red range, right?
If you need to measure a narrow optical wavelength, you use a narrow-band filter in front of the detector.
I don't know if gamma radiation is "optical" or how you filter it, or if any of this applies...
To measure optical wavelength you need a prism or diffraction grating to break-up the spectrum. Then, you can use a CCD detector (like a digital camera) to detect the various wavelengths or you can move the prism/diffraction grating or detector so that only one wavelength is measured at a time.
With the Arduino (or almost "anything") you are going to need a signal somewhere in the 1 Volt ballpark. That means you'll probably need some sort of amplifier circuit. I found [u]this page[/u] about using photodiodes.
Can I use BPW34 for color detection?
I want to detect black,yellow and green color with high speed so can I use BPW34 as detector with LED?
How much time require to detect color with led , BPW34 detector and Arduino uno board?