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Registered Member #2865
Joined: Tue May 18 2010, 10:59AM
Location: persia
Posts: 37
Hello everybody . Recently I've decide to build a cathode ray and X-ray tube . I know the theory and basic info's about cathode ray tube (but there are people who really know good in my house) Can i order neon sign designers to build my 2 tubes ? for CRT : a 30*1 cm tube with anode and cathode with a Dilute gas in it . for XRT : " " " " " " a 45 degree anode to reflect Xray in 90 degree from cathode ray with a Dilute gas in it I'll add my drawings soon .
Registered Member #2463
Joined: Wed Nov 11 2009, 03:49AM
Location:
Posts: 1546
The neon sign shop is good for glasswork but they not be able to make your electrodes. With that small of a diameter it may turn out to be a Geisler tube.
The early cathode ray tubes had gas but this was dropped in favor of vacuum.
Registered Member #543
Joined: Tue Feb 20 2007, 04:26PM
Location: UK
Posts: 4992
tulkas wrote ...
thanks. so what can i do for electrodes ? Any ideas are respectable .
Why don't just buy an X-ray tube from Russia or China? The cost of buying a small low-powered tube - say, less than 50W input - will be much less than commissioning someone else to make a safe, useful tube for you.
Great constructional accuracy is necessary to get a focal spot capable of doing anything useful - X-ray crystallography, or even taking sharp pictures, for example - and you will also need a high vacuum system of some cost and complexity.
I certainly wouldn't discourage anyone who has the resources to provide adequate shielding, good quality dosimetry, and all prudent safeguards, from experimenting with X-rays. I have friends who have made their own tubes, which is great if you want to do it for the sake of having done it, as a personal achievement, but not if your home-made tube is intended to be a stepping stone to further scientific investigation.
Registered Member #2865
Joined: Tue May 18 2010, 10:59AM
Location: persia
Posts: 37
thanks . but i don't want to just have one , i want to build one . and i don't want to take any pics . i just want to build one by my hands . And I'll pay as it cost
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Cathode and X-ray tubes
