About SATO YASUSHI
About 産業技術総合研究所計量標準総合センター
About RADIOISOTOPES (Web)
About national standard
About radioactivity
About Japan
About radium isotope
About radiopharmaceutical
About standard substance
About detection efficiency
About counting rate
About liquid scintillation detector
About simultaneous measurement
About calibration
About radium 223
About Liquid scintillation counter
About Triple-to-double coincidence ratio counter
About 4πβ-γ coincidence counter
About calibaration
About radiopharmaceutical
About 223Ra
About Liquid scintillation counter
About Triple-to-double coincidence ratio counter
About 4πβ-γ coincidence counter
About calibaration
About radiopharmaceutical
About 223Ra
About Radiation sources in general
About 日本
About 放射能
About 国家
About 標準