Japanese Journal of Health Physics
Online ISSN : 1884-7560
Print ISSN : 0367-6110
ISSN-L : 0367-6110
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Volume 28, Issue 4
Displaying 1-5 of 5 articles from this issue
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  • Efficacies of Manganese Chloride and Ca-DTPA for the Elimination of Incorporated Manganese-54 in Mice
    Itaru SATO, Naonori MATSUSAKA, Kunihiro SHINAGAWA, Haruo KOBAYASHI, Yo ...
    1993 Volume 28 Issue 4 Pages 407-412
    Published: 1993
    Released on J-STAGE: February 25, 2010
    DOIhttps://doi.org/10.5453/jhps.28.407
    JOURNAL FREE ACCESS
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    Efficacies of manganese chloride and Ca-DTPA (calcium diethylenetriaminepentaacetic acid) for the elimination of incorporated 54Mn were investigated in mice. Each mouse was given an intraperitoneal injection of 54Mn and initial whole-body radioactivity was measured immediately. Manganese chloride (10mg-Mn/kg) or Ca-DTPA (10 or 100mg/kg) was injected intraperitoneally once or repeatedly at various times after 54Mn injection. Efficacies for elimination were estimated by measuring the whole-body retention of 54Mn for 14 or 21 days.
    A single injection of manganese chloride eliminated more than 80% of the incorporated 54Mn when it was injected within 24h after the injection of 54Mn. Although the efficacy was decreased with the passage of time after the injection of 54Mn, about 50% was still eliminated after 14 days. Repeated injection of this agent raised the efficacy, but the second or later injection was less effective than the first injection. Ca-DTPA eliminated the incorporated 54Mn by 57% for 100mg/kg and by 19% for 10mg/kg when it was injected after 3h. But after 6h or later, Ca-DTPA had little efficacy.
    These results indicate that manganese chloride is very effective to eliminate the 54Mn from accidentally contaminated persons and the efficacy of Ca-DTPA is less than that of manganese chloride.
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  • Decrease of Uncertainty of Soil-to-Plant Transfer Factor-Statistical Analysis of Cesium Transfer Factor Values According to Classification Variables
    Hiroshi YASUDA, Shigeo UCHIDA
    1993 Volume 28 Issue 4 Pages 413-419
    Published: 1993
    Released on J-STAGE: February 25, 2010
    DOIhttps://doi.org/10.5453/jhps.28.413
    JOURNAL FREE ACCESS
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    Transfer factor (Tf) is empirically obtained as the ratio of radionuclide concentration in plant edible part and that in soil. Because of its simplicity, Tf is widely used in dose estimation of human exposure. However, since Tf concept has not sufficient physical meaning, the estimated results have uncertainty. In practice, large variation range is seen in the Tf values reported in literatures. The method for deceasing the uncertainty should be developed.
    In the present study, Tf values of cesium (Tf-Cs) reported in a literature were statistically analyzed according to classification variables. Some statistical values (geometric mean, minimum, maximum, percentile values) were shown and the effect of classification on decrease of the uncertainty was evaluated. The following information were obtained;
    (1) The geometric mean of Tf-Cs obtained from field was greater than that from lysimeter- and pot-experiment.
    (2) The geometric mean of Tf-Cs obtained in sand was greater than that in loam.
    (3) Tf-Cs variation in sand were greater than those in loam. Then the uncertainty of Tf-Cs is expected to be decreased in loamy soil.
    (4) Correlation between soil-pH and Tf-Cs was small. Then soil-pH is not effective information for the decrease of Tf-Cs uncertainty.
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  • The PC Code for Calculating Internal Exposure on the Nuclear Medicine
    Keiichi AKAHANE, Michiaki KAI, Emiko KONISHI, Tomoko KUSAMA, Yoshiro A ...
    1993 Volume 28 Issue 4 Pages 421-424
    Published: 1993
    Released on J-STAGE: February 25, 2010
    DOIhttps://doi.org/10.5453/jhps.28.421
    JOURNAL FREE ACCESS
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  • Ruthenium and Several Kinds of Transition Metal Complexes-Consideration from the Standpoint of Health Physics
    Toshio ISHIYAMA, Yatsuka MATSUDA
    1993 Volume 28 Issue 4 Pages 425-434
    Published: 1993
    Released on J-STAGE: February 25, 2010
    DOIhttps://doi.org/10.5453/jhps.28.425
    JOURNAL FREE ACCESS
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  • Note from Radiation Workers (Vol. 28, No. 4)
    Hiroshi TANABE
    1993 Volume 28 Issue 4 Pages 466-470
    Published: 1993
    Released on J-STAGE: February 25, 2010
    DOIhttps://doi.org/10.5453/jhps.28.466
    JOURNAL FREE ACCESS
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