Calibration of Cascade Impactor by Two-Stage Method
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概要
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A simple method of calibrating the cascade impactor has been developed by applying Hongo et al.'s two-stage method to evaluate the particle-size distribution. The constants ψ and σ-for a function representing the impaction efficiency were determined for the UNICO cascade impactor, using the test particles produced by a spinning-disc aerosol generator. The values were ψ=0.35, σ =1.46, respectively.<BR>The validity of the method for the UNICO cascade impactor was confirmed from micro-photographic observation of a sample artificial aerosol containing different sizes of uranine methylene-blue particles. Both the mass median aerodynamic diameter and the geometric standard deviation obtained with the method agreed with the microphotographic measurements with relative errors not exceeding 10%.
- 一般社団法人 日本原子力学会の論文
著者
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Matsui Hiroshi
Division Of Applied Life Sciences Graduate School Of Life And Environmental Sciences Kyoto Prefectur
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OHATA Tsutomu
Division of Health Physics and Safety, Japan Atomic Energy Research Institure
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MURATA Mikio
Division of Health Physics and Safety, Japan Atomic Energy Research Institure
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NARITOMI Mitsuo
Division of Health Physics and Safety, Japan Atomic Energy Research Institute
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IKEZAWA Yoshio
Division of Health Physics and Safety, Japan Atomic Energy Research Institute
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