【摘要】 作者以~３Ｈ－ＴｄＲ掺入体外培养人淋巴细胞的实验资料，用不同模式估算了细胞核的平均吸收剂量。结果表明，Ｒｏｂｅｒｔｓｏｎ，Ｒｏｓｓｉ和Ｇｏｏｄｈｅａｒｔ法的结果基本一致。Ａｐｅｌｇｏｔ法的结果偏高，且对细胞核半径不敏感，经适当调整后偏差降低，对半径的敏感性提高。质量平均法的结果也较其他方法高。但对半径为３μｍ的细胞核，经边缘效应校正后，其结果与其他方法相近。０．２７ｃＧｙ／ｄｉｓ只对半径为４μｍ的细胞或细胞核有效，不宜盲目应用。更多还原

【Abstract】 The average absorbed dose to cell nuclei due to 3H-TdR incorporation in human lymphocytes was calculated by using different dose formulae on the basis of data obtained from incorporating experiments in vitro.The results showed that there was no significant difference between the nuclear doses estimated by the formulae of Robertson,Rossi and Goodheart.The results came from Apeigot’s formula were higher than those from the above-mentioned formulae.A formula improved upon the Apelgot’s was proposed.The "mass mean method" also brought about higher results,but by the aid of edge effect coefficient the method was able to give correct results for nuclei with 3μm radius.Ifthe radius of nuclei is larger or smaller than 3μm,abnormal results of mass mean method would emerge.The 0.27 cGy/dis.was just effective for nuclei with 4μm radius.更多还原