Made a geiger counter from a kit. It's a MyGeiger kit from RH Electronics.
Its very good!
Inside
SV203908.jpg
Rear of pcb, with LiPo 1100mAh battery, charger and serial to USB converter 'mods' allowing charging from USB and datalogging via USB.
SV203909.jpg
In the case
SV203910.jpg
Almost completed unit
SV203911.jpg
Work to do: Add external detector socket and switch, make alpha pancake detector probe and beta/gamma detector probe.
Cool!
Background level log
shedbackground.jpg
How's that swing on a "Dosy meter"?
"Where would we be without the agitators of the world to attach the electrodes
of knowledge to the nipples of ignorance?" ~ Professor "Dick" Soloman
Mmmm pickled onions
SV203912.jpg
Oh, wait - thats not pickled onions. Thats Am-241, a strong alpha emitter
SV203913.jpg
Yum, 1.47uSv/hr with a load of plastic in the way, detecting the weak gamma and some of the weak beta that Am-241 gives off
SV203916.jpg
Last edited by mw0uzo; 09-08-2013 at 02:21 PM.
CPM log with Am-241
am241.jpg
What tube are you using?
Planning a trip to Japan?
A clear conscience is usually a sign of a bad memory
RIP ALBI-W3MIV RIP RUSS-W5RB RIP BOB-VK3ZL
SBM-20 tube from ebay.Originally Posted by KKM
I'm waiting for an Si-15BG pancake detector to arrive to make the alpha probe, might get another SBM-20 to make an additional probe to complete the set, which will also double as an outside monitoring probe.
Last edited by mw0uzo; 09-08-2013 at 02:15 PM.
No, but that would be great to test it all!
I'm going to set up a constant monitoring station with an SBM-20 outside, then feed the readings into a webpage, or submit them to one of the websites that provide a global map of readings. That won't be for a while yet. I have an old laptop that runs a QRSS grabber continuously, so will run this on it.
Posting Permissions
Reply With Quote