Method of posttreating the focal track of X-ray rotary anodes
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United States of America Patent
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Sep 21, 1993
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May 5, 1992
filing date -
May 7, 1991
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Abstract
The invention relates to a method of producing an X-ray rotary anode having a focal track region composed of refractory metals. The focal track region is manufactured by means of powder-metallurgy methods or by means of CVD or PVD methods. According to the invention, the focal track region is posttreated using high-energy electrons or photons by means of local, superficial melting to a depth of less than 1.5 mm. This reduces, in particular, the residual porosity in the focal track region. That results in improved mechanical properties, higher X-ray yield and markedly improved service life of such rotary anodes.
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