Light radiation protection material for a large energy application field
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United States of America Patent
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Issued Date -
Mar 9, 2006
app pub date -
Sep 3, 2004
filing date -
Sep 3, 2003
priority date (Note) -
Abandoned
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Abstract
The invention relates to a lead substitute material for radiation protection purposes, wherein the lead substitute material comprises from 12 to 22 wt. % matrix material, from 0 to 75 wt. % Sn or Sn compounds, from 0 to 73 wt. % W or W compounds, from 0 to 80 wt. % Bi or Bi compounds, and wherein not more than one of the constituents is 0 wt. %, for nominal overall lead equivalents of from 0.25 to 2.00 mm. The invention relates further to a lead substitute material that additionally comprises one or more of the elements Er, Ho, Dy, Tb, Gd, Eu, Sm, La, Ce, Nd, Cs, Ba, I, Ta, Hf, Lu, Yb, Tm, Th, U and/or their compounds and/or CsI.
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