| # | Title | Journal | Year | Citations |
|---|
| 1 | Variations of natural 15N abundances in the tissues and digesta of domestic animals. | Radioisotopes | 1987 | 102 |
| 2 | Multitracers.New method using RI tracers. | Radioisotopes | 1995 | 77 |
| 3 | New Method of Radon Activity Measurement with Liquid Scintillator | Radioisotopes | 1964 | 63 |
| 4 | Food Irradiation in Asia, the European Union, and the United States:A Status Update | Radioisotopes | 2013 | 57 |
| 5 | Diagonal Elements Fitting Technique to Improve Response Matrixes for Environmental Gamma Ray Spectrum Unfolding. | Radioisotopes | 2001 | 56 |
| 6 | A New Scintillator in Liquid Scintillation Counting and a Simplified Method of Sample Preparation for Determination of Tritium of Carbon-14 | Radioisotopes | 1974 | 40 |
| 7 | Marine Organisms and Radionuclides | Radioisotopes | 1999 | 36 |
| 8 | Application of inductively coupled plasma mass spectrometry to the determination of 99Tc in soil samples. | Radioisotopes | 1989 | 32 |
| 9 | Vertical Concentration Profiles of Radioactive Caesium and Convective Velocity in Soil in a Paddy Field in Fukushima | Radioisotopes | 2011 | 31 |
| 10 | Effect of γ-oryzanol on Hepatic Cholesterol Biosynthesis and Fecal Excretion of Cholesterol Metablites | Radioisotopes | 1966 | 30 |
| 11 | The Transfer Factors of Long-lived Radionuclides from Soil to Polished Rice Measured by ICP-MS. | Radioisotopes | 1994 | 29 |
| 12 | Study of Distribution of 169Yb, 67Ga and 111In in Tumor Tissue by Macroautoradiography | Radioisotopes | 1977 | 27 |
| 13 | Effect of the degree of polymerization of poly(vinyl alcohol) (PVA) on the reactivity in the hydrogen-isotope-exchange reaction between PVA and HTO. | Radioisotopes | 1986 | 27 |
| 14 | Whole Body Autoradiographic Studies on the Distribution of α-, β-and γ-BHC-14C in Mice | Radioisotopes | 1970 | 26 |
| 15 | Differences in the Radiation Sensitivity of Human Tooth Enamel in an Individual and among the Individuals in Dental ESR Dosimetry. | Radioisotopes | 1995 | 25 |
| 16 | Enhancement of Plant Growth Activity of Irradiated Chitosan by Molecular Weight Fractionation | Radioisotopes | 2006 | 25 |
| 17 | Effect of Sample Grain Size on the CO33- Signal Intensity in ESR Dosimetry of Human Tooth Enamel. | Radioisotopes | 1993 | 25 |
| 18 | Behavior of Uranium, Thorium, and Lanthanoids in Paddy Fields. | Radioisotopes | 1993 | 24 |
| 19 | Tritium Enrichment by Electrolysis Using Solid Polymer Electrolyte. | Radioisotopes | 1996 | 24 |
| 20 | Analysis of Nitrate Absorption and Transport in Non-nodulated and Nodulated Soybean Plants with 13NO3- and 15NO3- | Radioisotopes | 1999 | 24 |
| 21 | Energy Dependence of the CO33- Signal Intensity in ESR Dosimetry of Human Tooth Enamel. | Radioisotopes | 1991 | 24 |
| 22 | Variations of natural 13C and 15N abundances in the rat tissues and their correlation. | Radioisotopes | 1983 | 23 |
| 23 | Study on Iodine and Bromine in Soil-Plant System in Relation to the “Reclamation-Akagare” Disease of Lowland Rice by Means of Radioisotope-Techniques | Radioisotopes | 1970 | 23 |
| 24 | Tumor Scanning with 57Co-Bleomycin | Radioisotopes | 1972 | 23 |
| 25 | Cultivation Experiments on Uptake of Radionuclides by Mushrooms. | Radioisotopes | 1994 | 23 |
| 26 | Quantity and Economic Scale of Food Irradiation in the World | Radioisotopes | 2009 | 22 |
| 27 | Examination of Emission Spectrometric 15N Analysis of Amino Acids and Amides Separated by Thin Layer Chromatography | Radioisotopes | 1976 | 22 |
| 28 | 67Ga Binding Substances in the Tumor and Liver Tissues | Radioisotopes | 1980 | 22 |
| 29 | Tracer Experiments on the Transfer of Technetium from Soil to Rice and Wheat Plants. | Radioisotopes | 1992 | 22 |
| 30 | Synthesis and Biodistribution Studies of 186Re Complex of 1-Hydroxyethylidene-1,1-diphosphonate for Treatment of Painful Osseous Metastases. | Radioisotopes | 1995 | 22 |
| 31 | 個人被ばく線量計の最近の展開I. 蛍光ガラス線量計 | Radioisotopes | 2002 | 22 |
| 32 | Tritium Concentration in Wine, Rain and Ground Water | Radioisotopes | 1969 | 21 |
| 33 | Radiocesium Uptake Mechanisms in Wild and Culture Mushrooms. | Radioisotopes | 1993 | 21 |
| 34 | An Evoluation of Personal Dosimeter for Widely Distributed 134Cs and 137Cs by Using EGS Code | Radioisotopes | 2013 | 21 |
| 35 | Wavelet Analysis of Scintillation Discharge Current on DC Tracking Resistance of Gamma-ray Irradiated Polyethylene and Polycarbonate | Radioisotopes | 2001 | 20 |
| 36 | Plutonium and uranium in Japanese human tissues. | Radioisotopes | 1987 | 19 |
| 37 | Determination of 237Np in soil samples using inductively coupled plasma mass spectrometry. | Radioisotopes | 1989 | 19 |
| 38 | Metabolism of ipriflavone (TC-80) in rats. | Radioisotopes | 1985 | 19 |
| 39 | Effects of Clay Minerals on Radiocesium Sorption Behavior onto Paddy Field Soils | Radioisotopes | 2007 | 19 |
| 40 | Disposition of ipriflavone (TC-80) in rats and dogs. | Radioisotopes | 1985 | 18 |
| 41 | 凍結マクロオートラジオグラフ法とその応用 | Radioisotopes | 1966 | 18 |
| 42 | Separation of trace amounts of Ca2+ and Sr2+ from K+ and Rb+ with a hydrous manganese dioxide ion exchanger. | Radioisotopes | 1984 | 17 |
| 43 | Determination of 234U/238U activity ratios in geological reference materials by alpha spectrometry. | Radioisotopes | 1986 | 17 |
| 44 | Determination of Rare Earth Elements and Th, U in River Water by ICP-MS. | Radioisotopes | 1991 | 17 |
| 45 | Improvements for Measurement of 222Rn in Water. | Radioisotopes | 1992 | 17 |
| 46 | 山陰地方の温泉水中の238U, 234U, 226Raおよび228Ra含有量について | Radioisotopes | 1983 | 17 |
| 47 | Variation of 7Be Concentrations in Surface Air and in Deposition with the Solar Activity. | Radioisotopes | 1994 | 17 |
| 48 | Residence Half-time of <SUP>137</SUP>Cs in Japanese Paddy Top-soils | Radioisotopes | 1999 | 17 |
| 49 | Evaluation of Accuracy of Response Matrix Method for Environmental Gamma Ray Analysis | Radioisotopes | 2002 | 17 |
| 50 | Detection of Organic Free Radicals in Irradiated Pepper by Electron Spin Resonance. | Radioisotopes | 2002 | 17 |
