| 摘要 |
PROBLEM TO BE SOLVED: To provide powder-scattering exposure, which has a uniform distribution of powder concentration that enables to conduct a powder-scattering exposure test with high reliability in test chambers with various sizes, whereby a subject is not exposed to unnatural wind. SOLUTION: The powder-scattering exposure apparatus provided herein comprises a chamber capable of blocking powder from coming in and going out, a powder-mixed air supply means for supplying air (powder-mixed air) that contains powders mixed therein to the chamber, and a powder-scattering means for scattering powders within the chamber by blowing with rounding movement the powder-mixed air supplied from the powder-mixed air supply means in the chamber. COPYRIGHT: (C)2006,JPO&NCIPI
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