Recent deposition of 90Sr and 137Cs observed in Tsukuba

Aoyama, 1988, Evidence of stratospheric fallout of caesium isotopes from the Chernobyl accident, Geophys. Res. Lett., 15, 327, 10.1029/GL015i004p00327 Aoyama, 1987, Deposition of gamma-emitting nuclides in Japan after the reactor-IV accident at Chernobyl, J. Radioanal. Nucl. Chem. Articles, 116, 291, 10.1007/BF02035773 Aoyama, 1991, The temporal variation of stratospheric fallout derived from the Chernobyl accident, J. Environ. Radioactivity, 13, 103, 10.1016/0265-931X(91)90053-I Carter, 1977, Three decades of nuclear testing, Health Phys., 33, 55, 10.1097/00004032-197707000-00006 Cooper, 1971, Factors determining the ultimate detection sensitivity of Ge(Li) gamma-ray spectrometers, Nucl. Instrum. Meth., 82, 273, 10.1016/0029-554X(70)90361-7 Currie, 1968, Limits for qualitative detection and quantitative determination—application to radiochemistry, Anal. Chem., 40, 586, 10.1021/ac60259a007 Hirose, 1987, Annual deposition of Sr-90, Cs-137 and Pu-239, 240 from the 1961–1980 nuclear explosions: A simple model, J. Meteorol. Soc. Jpn., 65, 259, 10.2151/jmsj1965.65.2_259 Hirose, 1990, Short and long term effects of Chernobyl Radioactivity on Deposition and Air Concentrations in Japan, Vol. 1, 141 Ishikawa, 1994, Problems of area representativity and resuspension in the measurement of radioactivity deposition, 24, 63 Katsuragi, 1983, A study of 90Sr fallout in Japan, Pap. Met. Geophys., 33, 277, 10.2467/mripapers.33.277 Katsuragi, 1986, Seasonal variation of Sr-90 fallout in Japan through the end of 1983, Pap. Met. Geophys., 37, 15, 10.2467/mripapers.37.15 Katsuragi, 1982, A study of plutonium fallout in Japan, Pap. Met. Geophys., 33, 85, 10.2467/mripapers.33.85 NIRS, 1992, Radioactivity Survey Data in Japan NIRS, 1993, Radioactivity Survey Data in Japan Otsuji-Hatori, 1995, Preparation of a reference fallout material for activity measurements, J. Environ. Radioactivity, 31, 143, 10.1016/0265-931X(95)00048-F Playford, 1990, Radioactive fallout in air and rain: Results to the end of 1989 Ueno, 1984, Neutron activation analysis of deposition samples in Tokai-mura, Japan and evaluation of resuspension of 137Cs, Hokenbutsuri, 29, 17 WRI, 1991