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On 4/3/15 5:08 AM, Brian Hall wrote:
I've thought about using a pool noodle wrapped around a disc as a toroid, covered in aluminum tape. There are some hollow pool noodles such that a slit could be cut along the axis to give it a grip around the circumference of the disc. But would a larger diameter of the overall toroid width make up for the fairly small diameter of the pool noodle?
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The minor diameter (size of the tube) determines the breakout voltage,
so you generally don't want a skinny large diameter topload (e.g. a
pizza pan with a rolled edge isn't good).
However, maybe you can make two layers of noodles. The idea of a foam
that is already *mostly* the right shape. Put your first layer on, then
slit another and wrap the first noodle with 2 or 3 other noodles.
Or find a long flat strip of flexible polyethylene foam and wrap it.
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