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Registered Member #1321
Joined: Sat Feb 16 2008, 03:22AM
Location:
Posts: 843
I found what seems to be an interesting (to me at least) paper, but unfortunately, except for the title and abstract, the paper is in Chinese.
The title and abstract are:
Design of a Novel Compact Electrostatic Accelerator Cube
"This paper presents a novel conception that intense relativstic electron beam is accelerated by compact electrostatic accelerator cube. According to the theoretic analysis and PIC, the electron beam with current 1 kA and initial voltage 500 kV is accelerated in the accelerator of 0.8 m and it becomes 10 MeV. The beam is transported and accelerated without focusing magnetic field. The biggest electronic field can be decreased 20 MV/m by optimization design."
I tried looking at the figures and translating it with babelfish, but it's not working very well.
Maybe if someone can read Chinese they can tell me what's going on with this proposed device? I'm trying to figure out, for example, is the input beam pulsed, or is it continuous? Is there a source of external power (not including the input beam) or does the input beam itself excite the structure?
Registered Member #3888
Joined: Sun May 15 2011, 09:50PM
Location: Erie, PA
Posts: 649
check out plasma wakefield accelerators. They're probably not what your article is about, but I'm sure you'd find them interesting. Energy gain of 42GeV over 85cm. I was just reading about them on wikipedia.
Registered Member #1321
Joined: Sat Feb 16 2008, 03:22AM
Location:
Posts: 843
When I first saw this paper I thought it might be some kind of wakefield accelerator, but it apparently isn't...and the author refers to it as an "electrostatic" accelerator.
Based on the very little bit I can get from the figures and the abstract, I'm baffled as to the concept involved.
Anyway, as far as plasma wakefield accelerators are concerned, I don't know very much about them. It seems to me that in the 20+ years since the concept was discovered, they haven't really gone anywhere. It seems they're not very efficient overall, and although they have high accelerating gradients, in practice the high gradients seem limited to relatively short distances. Apparently they also have to be driven with a fairly sophisticated accelerator as well.
My impression is that they won't be replacing any of the more conventional accelerator types anytime soon, although they may have some niche application somewhere.
I'm interested in finding some electron accelerator concept that would be simple enough to build at home, that would get to at least 5 MeV or so in a package of a reasonably small size and cost.
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Can anyone here understand Chinese writing?
