Recent content by fatality314

I am now working on this (http://quarknet.fnal.gov/toolkits/ati/penndet/pennslide.html) design and I am in the process of setting it up. The other design was proving too expensive.

Thanks for the help!

I have found a website that actually seems to sell the 931A (http://www.elexs.com/7Photo.htm ) but I would need the base. Could I buy 2 of these 931A's and buy a power supply that is linked on the right side Hamamatsu page...

Thanks for the input. I may have found some cheap scintillator and 931A's but I can't find the bases for the 931A's as they are discontinued. Would you recommend any other PMTs and bases or is the design specifically for that model from Hamamatsu?

The reference website you gave has proven to be very interesting. I was looking around the site and came across this: http://hardhack.org.au/scintillator_detector Do you think that this would be better (i.e. more economical and useful for gathering data) than the scintillation paddle detector...

Yeah. I was thinking the same thing as I have read more about how the PMTs work. I am scared of buying one that may be burned out, but I don't really see any other options as I am a high school student on a tight budget and I just can not afford to buy a $150+ PMT when I also have to buy the...

I am building a cosmic ray detector and I am following these designs: http://www.lbl.gov/abc/cosmic/documentation/CosmicDetector2-0.pdf I have a few questions for those who may be familiar with this. a) In the parts page (http://www.lbl.gov/abc/cosmic/parts.html) I see that the price for the...

Thanks Bob that was very helpful! Any more equations or links to journals or designs pertaining to low-energy linear accelerators would be extremely helpful. I expect to spend many more months studying the math and vacuum system involved in this endeavor among other things. I am trying to...

It is not really due to safety as much as it is to money. Which is a very large reason that I am trying to downsize this project and make it more realistic. I understand the safety precautions fully but I feel that after some more research that it is unrealistic and I would rather not waste...

Edit: I am no longer aiming for pair production as it seems far off and I would rather not be working in those energies with me being only a high school sophomore. I would appreciate any other ideas on what I could do with the project ( i.e. possible and interesting experiments)

What would be other interesting experiments that I could do?

So, the Van de Graaff generator in the described link only has a potential of around half of what is advertised? How could he be so off in his calculations? If I were to use a stainless steel bowl with a diameter of 3 feet (~100cm.) would the generator achieve 900 kv or would I have to upgrade...

I just came across this: http://www.instructables.com/id/900000-volt-Van-de-Graaff-Generator-using-cheap-p This seems perfect for my project. It has a 900 Kv potential and is actually cheaper to build than if I bought a 250 Kv Van de Graaff. I already have many of these parts and if I...

Is there an alternative to the Van de Graaff generator that would be cheaper and more powerful for use in this linear/cascade tube accelerator?

Thanks berkeman, I just saw that also. Like I said I am not going exactly by this design but saw it as more of a starting point. Could I just upgrade the quality of the tubing and fittings to make it withstand at least 10-6 torr. If I did that would it ensure safety and a better vacuum or...