magnetic flux quantum
	E Q U A T I O N S
		A times B
		1		Planck constant		pi		0.081303
		2		Rydbergxhc in J		proton ch/ mss qt		-0.226519
		3
		4
		5
		6
		7
		8
		9
		10
		A divided by B
		1		hc		proton spec charg		0.438889
		2		S1 - S2 Hydrogen		sphere radius rt2		0.749562
		3		von Klitzing		permeability magn		0.749562
		4		pi/36		sphere radius 1		0.749562
		5		rd ed1 fc surface		r(sp)d radius rt2		0.749562
		6		sphere diam 1		8 pi		0.749562
		7		a u charge		Hydrogen at infty		0.764521
		8		Wien freq displmt		proton mass kg		0.390871
		9
		10
		11
		12
		13
		14
		15
		16
		17
		18
		19
		20
				The magnetic flux quantum Φ0 is the quantum of magnetic flux passing
				through a superconductor. The inverse of the flux quantum, 1/Φ0,
				is called the Josephson constant, and is denoted KJ. It is the
				constant of proportionality of the Josephson effect,  relating the potential
				difference across a Josephson junction to the frequency  of the irradiation.
				highligted		derivative		nist
				copyright   steve waterman   january 2009