Hi, I recorded an early morning spike (080702_spike.jpg) which I've uploaded to the Rodney_Howe folder. This peaked around 9:30 AM MDT. There were no clouds...
Hello Hannes, I am a member of this group for some time but I have been quiet so far :). I am not an expert in the field but I think I could give you my ...
Alexandra, I don't think I can detect TeV events; at least I'm not using the Pulse Integrated Amplifier detector that way. I'm just monitoring the background...
Hi Rodney, Ok now I have a more clear picture, thanks. Right, I don't think you can be sure that you have seen TeV events with this detector and this...
Thanks Hannes, It looks like I would only need one of those as it has two sensors.. Is that correct? Regards Martyn ... From: particledetector@yahoogroups.com ...
... Yes. And the tubes are much longer than mine which is better (higher counting rate) BTW, my 5kV power supply is finished :-) Will put up a page at CRORG...
Thanks Hannes I have ordered one. Best wishes, Martyn ... From: particledetector@yahoogroups.com [mailto:particledetector@yahoogroups.com] On Behalf Of Hannes...
Alexandra, The detector is on the second floor, and it is not shielded in any way, so I don't know that I'm only seeing muons. I think a detector specifically...
Hi Rodney, yes, I think that's what you need to sort out, what the background noise is and/or design some of shielding, like for example a 10 cm lead...
Hi all, recently I bought a neat PMT http://www.cosmicrays.org/tmp/pmt1.jpg (bought from GEOelectronics http://search.ebay.com/_W0QQsassZgeoelectronics highly...
Hi Hannes, The design of light guides (also called light pipes) is a science in and of itself. You have seen many examples of them in consumer electronics, ...
Alexandra, Thanks' for the reply, I think some kind of lead shielding might be best, perhaps a V shape to shield just the ground: \*/ ( where the * is...
Hi Rodney, I am not sure I got your idea with the V-shape shielding, but I guess that before you try any specific shape try a simple planar shielding above...
Alexandra, I'm experimenting with shielding as you suggested. I also do some radio astronomy, and was fortunate enough to get hold of a MODIS satellite...
Hi Rodney, I don't know if I got your idea exactly. So you have a torus magnet and you place it under the Geiger counter, ok. I have some comments: the...
Rodney, Check your shielding material with a counter before you use it, many materials are slightly radioactive themselves. Almost all rock contains traces of...
... At least not with a GM tube. Using a scintillator, you can measure energy and then check if it's a muon or not. That's when I'm going to try, when I have...
Hi all, for all who want to participate in the first RADIATION SKYPE TELECON this evening STARTING AT 6pm EST, 3pm PST (that's a halfway acceptable time in...
... OK, folks that was a little too short-term. I want to ask you all, if there are actually folks around who want to make a voice telecon via skype ? If so,...
Hi all, a new electronics store opened here and I was carefully checking it out today and found something: Regular CCFL high voltage modules, I previously...
Ron, Did you build your two tube detector from this design? http://www.cosmicrays.org/muon-geiger-scr-coincidence.php R. ... From: Ronald Fleshman To:...
... Hi Rodney, since you mention my design, I'd be eager to hear your opinion! (but remember, it's just a "show-off" device for my talks - nothing one can make...
Hello all, I'm a teacher looking to have a student build one of the flat-plate CR detectors as in the SciAm article. Are there good sources of the thin wire...
Rodney, No I did not. I am using two Aware Rm-60 detectors. They use a 712 type tube. The coincidence circuit was made for me by an old radio student of...
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