Photodiode Pulser Circuit

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Richard Hester
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Photodiode Pulser Circuit

Post by Richard Hester » Mon Aug 05, 2002 4:41 am

Attached is a short page describing a photodiode pulser that can be used to test charge sensitive and other preamp circuits. Using this pulser, one obtains accurate results for charge sensitive amplifier fall time. The circuit is a touch slower than a PMT, but a whole lot easier to build and power, and smaller to boot. Any fast photodiode could be used in place of the SFH203 cited in the schematic.
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Photodiode_Pulser.PDF
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Joe Gayo
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Real name: Joe Gayo
Location: Los Angeles, CA

Re: Photodiode Pulser Circuit

Post by Joe Gayo » Mon Oct 19, 2020 5:45 pm

Does anyone have this file?

John Futter
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Re: Photodiode Pulser Circuit

Post by John Futter » Mon Oct 19, 2020 6:21 pm

I do not know about the original file but I use this one to test SPIMs and PMT's
photopulser.pdf
(2.2 MiB) Downloaded 27 times
Note it uses a very high voltage to get the necessary dI/dT through the blue LED

Jon Rosenstiel
Posts: 1421
Joined: Thu Jun 28, 2001 5:30 am
Real name: Jon Rosenstiel
Location: Southern California

Re: Photodiode Pulser Circuit

Post by Jon Rosenstiel » Mon Oct 19, 2020 6:58 pm

Fixed the missing file, should work now.

JonR
I like old-timey heavy electronics that you don't have to hold down
with one hand while pushing the on/off button with the other.

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