---Yes I only want to demo electrons. I did use this three or so times a year
for two years but not for any extended periods. I was sold this setup by
scisupply.
I once again ask for the wisdom of those on this site. I am a Physics teacher and often use a cathode ray tube to display how electrons were discovered by JJ...
Yes, it is an X-Ray tube. What is the High Voltage generated? See this article : http://tech.groups.yahoo.com/group/XRL/message/58 NOT A TOY! Geo ... From:...
As for the health hazards, no comment; however, a GM Survey meter is inadequate for measuring X-rays. The problem is X-ray machines can produce a pulsed...
fine, It may be higher than that on peaks. even a 10 kVp X-Ray is penetrating. High Voltage + Vacuum tube= X-Rays. Good luck with that. Geo ... From: "rrquay"...
I used to work at a science museum that had one of those Van de Graaf generators- a particle accelerator. A graduate physics student was working with it and...
Try to find a power source offering no more than 5 Kv to the tube. Anything higher and you risk x-ray output. There are a few micro type supplies that may do...
Thank you. That makes sense. Is there a way to calculate the frequency of the xrays produced by different voltages? I assume that this production is caused by...
Braking (Bremsstrahlung) as well as characteristic X-Rays. If all the materials are low Z, the characteristic X-Rays will be very low energy level. Brems will...
OK but does secondary require a change in direction. I'm thinking Compton scattering here where momentum is conserved. ________________________________ From:...
Correct. In Compton scattering, the original photon radiation changes direction losing ( or in rare cases, gaining-) energy (inelastic scattering). In...
I am looking for someone with an interest in radiation education as opposed to disinformation who lives near Waterport, NY to do some local area research....
I think the point is to accelerate electrons, not to make X-Rays. Geo ... From: arthurok To: GeigerCounterEnthusiasts@yahoogroups.com Sent: Thursday, October...
I have had success with as little as 2 Kv, again with a small plasma globe supply. The only drawback was that the fluorescence within the tube was too faint...
Video is a poor substitute, but is definitely the media of today. When I was a little kid, our science teacher performed and experiment that graphically ...
Interesting demo Geo, A similar technique involving a sparkplug and the gas tank of a car or bike was used to deal with some very naughty people in the Middle...
Hello, the danger to YOU is much more than your students because 1. you repeat this demo, they don't 2. you're closer to it That being said, 10kV x-rays will...
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