Quick! Cover that crystal with something opaque. It's not as sensitive as photo film, but if you leave it exposed to light for a while, it will yellow and...
whoa ... i seem to have stumbled into The Right Group! My PRI 107C was the first thing I ever bought from an ad -- probably Popular Mechanics or Science...
Hi James, The usual solution these days is to build a small switching power supply that runs off of 4.5 to 6V to supply the 45 and 67 volts required by the...
It's good you found the link to Al's webpage. He makes the power supply modules that eliminate the need for the special batteries. Getting a proven circuit...
Now that the hot weather is here, it's time to change the probes in your vehicular radiation detector setups. Remove any thin window ( pancake, end-window)...
... I have finally gotten around to reading these "American Heritage® Book of English Usage" paragraphs and wish to point out they use poor, i.e. ... Remember...
For the mere enjoyment of electrocuting insects, I can offer my unsolicited testimonial. Big moths put on the best and noisiest show. Get ready to be truly...
It's an ion chamber on a stick. They use them to probe 'phantoms" to see how much radiation is getting to the target area. Geo ... From: Tornadojoe To:...
Years ago, when I was in graduate school, I transistorized a PRI 107C and a PRI 111B. I made a printed circuit board that was the same size as the original...
Does anyone have schematics on the Minimonitor II or 125 pocket GCs? Anything on the XETEX 415 dosimeter? Thanks in advance.... Bill Beamon KD4FNC bbeamon -at-...
Ken, Sounds like a bargain. Do you have a PayPal account? If so, I'll take it now, if not I'll still take it but will have to clear it with my better half. ...
I don't know if this is what you are talking about but hospitals use I-131 for therapy when they tag white blood cells with I-131. It is called Monoclonal ...
In a message dated 7/11/06 8:44:41 AM Central Daylight Time, coketaylor@... writes: I don't know if this is what you are talking about but hospitals use...
Hi, Nearly all the Ludlum handheld units use a "Unimorph" piezo-ceramic sounder. Generally (e.g. models 12 and 16) driven by a '555 timer wired as a pulse...
I-131 is a strong Gamma emitter, with over 81% probability of a 364 keV gamma per disintegration. Radiological half life is 8 days. The biological half life...
And you call yourself a scientist!? Geo ... From: wharpt@... To: GeigerCounterEnthusiasts@yahoogroups.com Sent: Wednesday, July 12, 2006 11:03 AM Subject:...
That's nothin'. In India there is a whole cult that drinks all their urine, all the time (Urophagia). No kidding Ghandi was one of the practitioners so was...
After today I'll be taking a break from the eBay scene long enough to get the Home Lab reorganized. If anyone has an open order for LENi's, GEO-210 probes or...
me neither, just a wannabee. Geo ... From: wharpt@... To: GeigerCounterEnthusiasts@yahoogroups.com Sent: Wednesday, July 12, 2006 6:52 PM Subject: Re:...
Yes, the Ludlum 2241 series, FWT-Cypher5000 and Eberline 600 also have audio divide, but a better way to run mobile is with an alarming meter, run off the...
The HOME LAB series by George Dowell Chapter 1 Hardware The Home Rad Lab - The Nuclear Physics Wing Intro Radioactivity in the educational lab. What is legal? ...
Thanks Geo for the info and all you do! ... divide, but a better way to run mobile is with an alarming meter, run off the battery. See the FILES section for...
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