| 摘要 |
PROBLEM TO BE SOLVED: To provide a soft X-ray shielding material that is free from deposition of dust or the like, and is less likely to be colored. SOLUTION: The soft X-ray shielding material A1 is provided with an electricity control layer 2 at least on one face of a shielding based material 1 comprising a polyvinyl chloride resin. The shielding base material 1 comprising the polyvinyl chloride resin has an X-ray shielding factor superior than other synthetic resin, and is able to shield a soft X-ray dose of 7,350,000μSv/h to a level of 0.1μSv/h or lower, even in 1.80-10.0 of thickness. The dust or the like is prevented from being deposited, because the electricity control layer is provided on a surface. The soft X-ray shielding material may be constituted of the shielding base material comprising the polyvinyl chloride resin, and a protective material comprising the other resin provided in a soft X-ray irradiation side of the shielding base material, the soft X-ray is shielded to some extent by the protective material in this case, and the transmitted soft X-ray is shielded by the shielding base material to surely shield the soft X-rays. COPYRIGHT: (C)2006,JPO&NCIPI
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