Jana1d ago
I was even more productive yesterday and assembled this cute stack!
It’s four Hamamatsu S1337-1010BR Si photodiodes with respective amplifiers. I want to add a scintillator, a light-proof metal casing and see whether I can use this as an energy-dispersive x-ray sensor, maybe even do energy-dispersive x-ray spectroscopy
Show threadstd_logic_vector5h ago
@janamarie Very cool project! What kind of amplifier are you using? We have been thinking about a DIY EDX for our SEM for while now...
Show threadJana
@stdlogicvector I will publish the schematics sooner or later! Not much thought went into this yet, it’s a simple op-amp based amplifier with diode biasing, but the amplifier board is different to the diode board, so I can update it with a better driver at some point
9:07pmWeb
Show threadJana5h ago
@stdlogicvector if you have any input, please share, would be happy to read more into such amplifiers!
Show threadstd_logic_vector3h ago

@janamarie I only have a little bit of experience with logarithmic transimpedance amplifiers for measuring light level. And I did one charge sensitive amp design for a PMT in a gamma spectrometer. One of the many projects of which I should at least publish the schematics and firmware...

That's why I shared your post with gigabecquerel as he is my go-to expert in all things detector related!