The London, Edinburgh, and Dublin Philosophical Magazine and Journal of ScienceH. B. Dwight, "The magnetic field of a circular cylindrical coil," Phil. Mag., vol. 38, pp. 948-957, 1931;Dwight H B 1931 The magnetic field of a circular cylindrical coil, Phil. Mag. 38 948-957...
the magnetic field lines become almost parallel which indicates that this part of the coil has a uniformmagnetic field. In other words, we can say that at the centre of the circular loop, magnetic field lines become straight lines
Here, B0=ωB/α is the magnetic field at the centre of trap, ωB is the cyclotron frequency, α=q/m is the particle's charge-to-mass ratio and z0 the distance between coil and centre. Note that (28a), (28b), (28c) is not a valid approximation of a mirror trap's magnetic fiel...
Therefore, after an external field exceeding the coercivity of the medium has been applied, the medium magnetization indefinitely stays (or “freezes”) at Mr. Therefore, if the recording head field significantly exceeds the Hc value, it becomes possible to create regions of magnetic medium with ...
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Feeder hopper on the top of the machine; Three drums ; First drum size: diameter 500mm* length 1500mm, magnetic field intensity:1000 gauss-1500 gauss; Second drum size:diameter 500mm* length 1500mm, magnetic field intensity:8000 gauss; Third drum size:diameter 500mm* lengt...
Since its introduction in the 1980’s it has become a popular imaging biomarker for detection of subtle differences between healthy and diseased tissue with important clinical application in ischemic stroke and tumor classification1. DWI data from conventional pulsed field gradient spin echo (PGSE) ...
The nonzero spin ground state of the Fe2 þ ion even at low magnetic field opens the possibility of using it as a two-level system in quantum information technology9. Results Fe2 þ energy spectrum in bulk and in a strained nanostructure. The dominant effect defining energy spectrum of a...
Magnetic field energy can be converted first to mechanical energy by permanent magnets [19] or magnetostrictive materials [20] and then to electricity by a piezoelectric material. A more straightforward way with higher efficiency and power output, however, is the use of a coil to harvest the ...
So far, a figure-of-eight shaped coil design (also referred to as butterfly coil) has mainly been used for rTMS. This coil produces the largest current density in the tissue under its center with the largest component of the electric field being oriented in parallel to the wires in the ...