Interlaboratory Comparison of Positron Annihilation Lifetime Measurements

摘要：

So far no standard procedure for the positron annihilation lifetime (PAL) technique has been established. A lack of the standards has led to difficulty in ensuring the equivalency and reliability of data from different laboratories. As a first step toward the standardization of the PAL technique, we conducted an interlaboratory comparison of PAL measurements for metal, polymer and silica glass with agreed procedures for data recording and analysis. The PAL data, recorded at different laboratories without any access to the data of other laboratories, were analyzed with a single lifetime component for the metal sample and with three lifetime components for the others, respectively. Based on the results of the reported positron and ortho-positronium lifetimes, the possible sources of the uncertainties in the PAL measurements are discussed.

作者: K.Ito H.Hosomi Y.Nagai K.Inoue H.Saito K.Sakaki K.Sato A.Shimazu A.Uedono T.Oka Y.Kobayashi Y.Shirai K.Wada M.Matsumoto M.Fujinami T.Hirade Y.Honda

作者单位: National Metrology Institute of Japan (NMIJ),National Institute of Advanced Industrial Science and T Toray Research Center,Otsu,Shiga 520–8567,Japan The Oarai Center,Institute for Materials Research,Tohoku University,Oarai,Higashi Ibaraki,Ibaraki 31 The University of Tokyo,Meguro,Tokyo 153–8902,Japan Energy Technology Research Institute,National Institute of Advanced Industrial Science and Technolog Tokyo Gakugei University,Koganei,Tokyo 184–8501,Japan NITTO DENKO,Ibaraki,Osaka 567–8680,Japan Institute of Applied Physics,University of Tsukuba,Tsukuba,Ibaraki 305–8573,Japan Graduate School of Engineering,Osaka University,Suita,Osaka 565–0871,Japan Chiba University,Inage,Chiba 263–8522,Japan Japan Atomic Energy Agency,Tokai,Naka,Ibaraki 309–1195,Japan Institute of Scientific and Industrial Research,Osaka University,Ibaraki,Osaka 567–0047,Japan

会议类型: 国际会议

会议名称: 第九届国际正电子与正电子素国际会议(9th International Workshop on Positron and Positronium Chemistry)(PPC–9)

会议地点: 武汉

会议语种:英文

页码: 53

在线出版日期: 2008-05-11（万方平台首次上网日期，不代表论文的发表时间）