Reply To: Physics Nobel to Big Bangers

[vansig]

would the coils not be larger as you move away from the chamber? since the wavelength of the beam’s residual kinetic energy is longer, and the horizontal position more uncertain, both diameters should increase as you move out. let’s make the 2nd one twice the diameters of the first, and the third one twice again. like the bell of a horn.

oh, and there’s no wire running through the centre of each coil. (that region is reserved for magnetic field storage).

I’ve been studying how to make high-frequency, high-current coils, and have concluded that at the necessary frequencies, skin effect of the coil conductors comes into play. At 1GHz, skin depth is 2µm, and AWG-0 copper wire has an effective resistance of 318 ohms/m, much too great for a high Q coil. so instead of solid wires, they’d be either hollow pipes or pressed flat, like a Slinky toy. I’ve been told that a strip line, with thickness less than twice the skin-depth, will not suffer from skin effect. Geometry constraints then lead this to look like the conductor is occupying the space in-between the pieces of a shrimp plate. hope that’s clear. it might be necessary to reduce the inter-loop capacitance, or find a good way to take advantage of that.

Based on inductance calculations, the first coil might have as few as five turns; each additional coil would double that