Superconductor technology: apparatus – material – process – High temperature – per se – Having tc greater than or equal to 150 k
Patent
1991-06-11
1993-03-02
Scott, Jr., Leon
Superconductor technology: apparatus, material, process
High temperature , per se
Having tc greater than or equal to 150 k
372 2, 372 37, H01S 300
Patent
active
051909111
ABSTRACT:
An improved free electron laser is described. The laser comprises an accelerator arranged in order to emit an electron beam along a laser emission line and a circuit loop including a curved line which traces a periodic function along a line parallel with said laser emission line in order to produce a periodic magnetic field along said laser emission line. The periodical circuit is made of a superconducting material, so that the periodical length thereof is made as shown as 100 microns without compromising the strength of the magnetic field induced by the circuit. In another embodiment of the invention, a free electron laser is disclosed where an accelerator is arranged to emit an electron beam along a laser emission line and a plurality of coils are arranged alongside and in substantial parallel with the emission line in order that adjacent coils induce magnetic fields in opposite directions. A power source supplies electric energy to the coils and at least one superconductor is arranged along the emission line to be subjected to the magnetic fields induced by said coils. When a plurality of superconductors are provided, each is arranged to be subjected to the magnetic field induced by one of the coils in a one-to-one correspondence.
REFERENCES:
patent: 4283687 (1981-08-01), Madey et al.
patent: 4809281 (1989-02-01), Neil et al.
patent: 4971945 (1990-11-01), Takemura
Jr. Leon Scott
Semiconductor Energy Laboratory Co,. Ltd.
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