I get into this hobby after saw the film "The Day After" but was young.. about 9 y.o. In the 2000 on July..while im working in a Computer shop surfing on...
Before breaking down the bench setup this morning, I ran some other household materials through the Beta bombardment/X=Ray backscatter test and found several...
... Next time your setup is set up, try 1. silver-gold alloy 2. tin-lead solder 3. mercury in a thermometer 4. long shot: tantalum in a capacitor Don't know if...
the tin was in tin-lead solder, you can see both peaks. Are mirrors made from mercury? Geo ... From: DH [mailto:revtkatt@...] Sent: Monday, March 01,...
This time used a small inexpensive Sr-90 test disc, .1 uCi as he excitation, got a really nice clean pattern, since no extraneous Gammas present. Transmission...
Anyone have the pinout for SEi Inspector etc// series? It has a 1/8" stereo jack on the unit going to a 9 pin din on the computer. I'm wanting to try their...
... Silver in the past I think, but now probably sputtered aluminum, like mirrored sunglasses. I was surprised to find that "modern" glass thermometers are...
Hi, Could anyone suggest a source to acquire the manual(s) and/or the Eberline software which utilizes the serial port on this meter? Thank you in advance for...
all good ideas. I tried tantalum from a ball pint pen ball, but it was too small to get a reading. There are many things lurking at home in the lab I'm sure,...
Hi All, As promised I put up a couple new files from the Canberra 8075 NIM based MCA of the Sr-90 / Pb X-ray. I had some time today to do this test with a 2"...
See chart in FILES. Take a sample of Radium D+E from certain CDV 700 Geigers. Irradiate with 687 keV Betas from another source. Characteristic X-Rays of the...
Eberline, now Thermo Electron, can provide manuals for $50-60 and software for even more. I could copy the 144 page manual for $15. J. Marshall Reber 165...
Hi, this tickled my funny-bone. Stop me if you've already heard it. Cynthia. "Peculiar friends are better than no friends at all." "Don't torture yourself...
Hi All, I did the beta-Pb test with 1" and 2" Detectors, and uploaded/changed the xls file names appropriately. The point being.. If you are intending to...
We might be one step closer to limitless energy: http://www.rpi.edu/web/News/press_releases/2004/lahey.htm Anyone playing around with ultrasound? Chris...
keuleeule has some "x-ray art films" which are really worth looking at. I never knew a mantle could be so colorful. Thanks for annotating in English. (For...
Wow, this is getting routine. Another car set off the alarm , bigtime. Little old lady the only passenger(driver), had handicapped plates. Played cat and mouse...
Geo, What level do you set your alarm at? Just curious because you hopefully are a reasonable distance from the car you are next to, plus the radiation needs ...
Yes Chris we are talking about a lot of radiation. Normal background with this setup about 400 CPM. I set alarm for 5000 CPM, full scale. This car smacked the...
PS for reminder, the detector is a 1 x 1" NaI Gamma scintillator, not a big expensive deal at all. There are several Bicron tubes equal or better on eBay for...
... What kind of counter are you using? I would like to try the same thing, but I would need to get something with an alarm. Do you have any thoughts on what...
My unit is th Eberline RM-20, but any of the earlier units will work just as well. The Ludlum 177 series also noce, all $100.00 or less, sometimes much less....
A)SHORT HALF LIFE ISOTOPES lived Gamma emitter, which turns into Tc-99, a long lived pure Beta emitter after a 6 hour half life. Making measurements on a...
A)SHORT HALF LIFE ISOTOPES Last year we had a chance to investigate some Tc-99M, which is a short lived Gamma emitter, which turns into Tc-99, a long lived...
... work just as ... That is a very nice set up. I have been looking for one of those for over a year for my computer / ham radio desk. Really trying to find...
Folks, I am wondering if I can stop beta particles from entering my probe by covering the window with tin foil. If not, how thick a piece of aliminium would be...
It would take about 4 mm of aluminum to block (assuming your aluminum isn't radioactive) most beta particles, just out of curiosity doesn't the window close on...
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