Hi,
I should like to show my homemade mca based on a PIC 16F84 processor. I have tested it with a also homemade semiconductor counter. The counter is made by removing the window of a simple BPX 61 photodiode. Counter and mca works well with a americium alpha source from a smoke detector and with a old radium loaded clock dial.
For neutron detection I try to use a scintillation counter with the mca. Has anyone tried to use a liquid scintillator with p-therphenyl and some boron compound. It should be easy to use some big volume scintillator for high sensibility
Thomas
Homemade MCA
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Homemade MCA
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Re: Homemade MCA
Looks good!
Is there a website where we can look at the schematics and software?
Neil
Is there a website where we can look at the schematics and software?
Neil
Re: Homemade MCA
Nice work, Thomas.
I'll be interested in how your efforts with the liquid scintillator go.
The sensitivity of a Photo-diode as a particle detector can be affected by the biasing. What bias, do you use?
Dave Cooper
I'll be interested in how your efforts with the liquid scintillator go.
The sensitivity of a Photo-diode as a particle detector can be affected by the biasing. What bias, do you use?
Dave Cooper
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Re: Homemade MCA
Hi Neil,
I have attached schematics and program in the file section.
Hi Dave
the bias of the photo diode was 12 V
Thomas
I have attached schematics and program in the file section.
Hi Dave
the bias of the photo diode was 12 V
Thomas
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Carl Willis
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Re: Homemade MCA
Hi Thomas,
Looks like an interesting and original project.
I, for one, cannot read the schematic page in your PDF. It may be a problem with my computer.
In this day, MCAs are unnecessarily expensive products from nuclear electronics manufacturers and it would be nice to homebrew a reliable replacement. Thanks for posting this.
-Carl
Looks like an interesting and original project.
I, for one, cannot read the schematic page in your PDF. It may be a problem with my computer.
In this day, MCAs are unnecessarily expensive products from nuclear electronics manufacturers and it would be nice to homebrew a reliable replacement. Thanks for posting this.
-Carl
Re: Homemade MCA
carl, i can't open the files either. of course i'm using a 10 yr old computer... that may be part of it.
anyway, this is a fascinating project! quite impressive! i hope to see more of it in the future.
Q
anyway, this is a fascinating project! quite impressive! i hope to see more of it in the future.
Q
Re: Homemade MCA
Save the PDFs to your desktop, then open....worked for me.
Better freshen up on your German .
Jerry
Better freshen up on your German .
Jerry
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Re: Homemade MCA
Hi,
like Jerry told one have to download to open, I don`t know why.
I have used the old 16F84 processor which has nearly no internal ram and only 13 port pins. So I had to use a shiftregister to address an external ram and the adc. It's not a very smart solution. If I would rebuild the device nowadays I would use the same analog circuit but an Atmel processor, maybe ATMEGA32 with internal ram and internal adc.
Thomas
like Jerry told one have to download to open, I don`t know why.
I have used the old 16F84 processor which has nearly no internal ram and only 13 port pins. So I had to use a shiftregister to address an external ram and the adc. It's not a very smart solution. If I would rebuild the device nowadays I would use the same analog circuit but an Atmel processor, maybe ATMEGA32 with internal ram and internal adc.
Thomas