Olin Student Projects 2008. Keith Gendreau Code 662 NASA/GSFC 301-286-6188. A PIC Microcontroller Based Pulse Detection and Measurement System .
Code 662 NASA/GSFC
Take an input analog signal, look for pulses above a threshold, detect the peak voltage of each pulse, digitize the peak voltage, write to a file the pulse time and peak pulse height, continue….
Build on last year’s “Flux Meter”, if possible.
X-rays pack a lot of energy. X-ray detectors see individual X-ray photons. If the detectors and electronics are good enough, they can determine the energy of the photon.
Science is to be gained by the energy of the photons.
Vpulse is proportional
to Energy of photon
Pulse widths: ~25 ns- 2µsec
On a BNC
Any type of computer, PC or Mac
(I prefer Mac, but whatever is doable)
This is a circuit design I found that can detect a pulse peak
And hold the pulse long enough for a slow ADC to measure the peak voltage. It can then be reset to detect the next pulse after the measurement has been made.
** just a suggestion, maybe other things exist…
This one should be fast, though…