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AssigneeSumitomo Electric Industries, Ltd.
InventorsKenichiro Uehara, Atsuo Ito, Koichi Nishimune, Kazutoshi Fujita
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An irradiation apparatus with high energy electrons is disclosed in which a wire shaped or linear object to be irradiated is moved back and forth many times under an electron window so as to irradiate it with an electron beam. According to one feature of the invention, an electron beam, which leaks through gaps between the objects to be irradiated or which penetrates the objects to be irradiated, is reversed by a magnetic field approximately perpendicular to the scanning face of the electron beam by means of a magnet which is disposed under the objects to be irradiated, and the reversed electron beam is thereby again applied to the objects to be irradiated. A high utilization rate of the electron beam is accomplished, and the objects can be thereby uniformly irradiated with the electron beam.
An apparatus for irradiating a linear article with high energy electrons which comprises an electron accelerator having means to oscillate an electron beam transversely to the direction of movement thereunder of a linear article to be irradiated, means for simultaneously passing different portions of the linear article under said oscillating beam a plurality of times for irradiation, and means underlying said oscillating beam and the linear object to be irradiated for generating a magnetic field perpendicular to the scanning plane of said oscillating beam, said magnetic field having a strength sufficient to deflect said beam approximately opposite to its direction of incidence.
Dependencies are inferred from the claim text.