Is There an Optimal Size for Magrid Casings?

Discuss the technical details of an "open source" community-driven design of a polywell reactor.

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Billy Catringer
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Postby Billy Catringer » Wed Mar 11, 2009 2:43 am


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Postby Roger » Wed Mar 11, 2009 3:53 am

Plus the standoffs can be kept in the shadow. Yeah 24 standoffs aint my first choice either.

Back to WB-7.1, I wonder what Nebel will do with no nubs... Standoffs? Or just better nubs that electrons dont like..... ?
I like the p-B11 resonance peak at 50 KV acceleration. In2 years we'll know.

Billy Catringer
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Postby Billy Catringer » Wed Mar 11, 2009 3:57 am


D Tibbets
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Postby D Tibbets » Wed Mar 11, 2009 7:25 am

To error is human... and I'm very human.

Billy Catringer
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Postby Billy Catringer » Wed Mar 11, 2009 7:32 am


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Postby MSimon » Wed Mar 11, 2009 9:34 am


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Postby Scupperer » Wed Mar 11, 2009 3:42 pm

Image

Forgive me, I'm just a caveman, and understand very little of what is discussed here, however much I enjoy reading it, but I love geometries.

I'm curious what effect reshaping the "nubs" as pictured above might have on the fields. Will changing their intersection to the rear of the coils, and increasing their radius clear them of the wiffleball effect and recirculating particles?

I understand the change in shape would require an increase in material for them to continue to act as supports for the 4 magnets, but if the shape change doesn't solve the interference that the current "nub" configuration apparently causes, then solving for size is immaterial. (Unless there's no chance such a configuration could support a "full" size coil to begin with, which is entirely possible with the stresses on a support arc over 90 deg).

Please, no laughing; the idea just occurred to me as I was looking at WB 6/7 photos and wondering why the nubs were intersecting the coils in areas that were clearly within the interior field lines of the device.

Also, even if they aren't capable of independently supporting the 4 coils as shown, they could be what's need to prevented vibration/torque with cantilevered standoffs for those coils, if they no longer interfere with recirculation.
Perrin Ehlinger

Billy Catringer
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Postby Billy Catringer » Wed Mar 11, 2009 4:03 pm

I can't speak to the physics, Scupperer, but I can tell you that getting coolant to those nubs is a hairy business unlikely to succeed. Without coolant, they are useless.

Also, the horseshoe shaped ones you drew would not make for good tension members. They would impose torque on the shells they are attached to.

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Postby Scupperer » Wed Mar 11, 2009 4:26 pm

Perrin Ehlinger

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Postby ekribbs » Wed Mar 11, 2009 6:12 pm


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Postby Scupperer » Wed Mar 11, 2009 7:55 pm

Perrin Ehlinger

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Postby ekribbs » Wed Mar 11, 2009 8:07 pm


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Postby Scupperer » Wed Mar 11, 2009 8:23 pm

Perrin Ehlinger

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Postby ekribbs » Wed Mar 11, 2009 8:51 pm


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Postby Scupperer » Wed Mar 11, 2009 9:14 pm

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