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Effectiue dose for radon progeny in Japan

机译：日本ra子的有效剂量

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We estimated the effective dose for radon progeny in the Japanese population. The value was calculated with a modified UNSCEAR equation taking the following terms into consideration; radon concentration, radon equilibrium factor, occupancy factor or annual tidal volume, activity-energy conversion coefficient and dose conversion coefficient.rnThe following figures were used in the calculation; a radon concentration of 15.5 (7 ～ 27) Bq/m~3 for indoors and 5.0 (2.5～10) Bq/m~3 outdoors; an equilibrium factors of 0.45 (0.35～ 0.57) for indoors and 0.70 (0.50 ～ 0.90) outdoors; an occupancy factor of 0.87 for indoors and 0.13 outdoors for males, and 0.91 indoors and 0.09 outdoors for females; an annual tidal volume of 7,000 (6,350 ～ 7,900) m~3 for males and 6,600 (6,100 ～ 7,550) m~3 for females. The annual tidal volume was obtained the product of tidal volume and occupancy time, which were estimated in Japan and from surveys on Japanese life-style.rnThe effective annual doses for radon were estimated to be 0.55 mSv for males, 0.49 mSv for females and 0.52 mSv for the mean of both sexes. These were about 40 % of the value shown in the 1993 UNSCEAR Report. The dose range due to ranges of the factor was -75 ～ +175 % of the representative value.
机译：我们估算了日本人口中ra子体的有效剂量。该值是使用修改后的UNSCEAR公式计算的，其中考虑了以下术语； concentration浓度，ra平衡因子，占有率或年潮气量，活动能转换系数和剂量转换系数。室内ra浓度为15.5（7〜27）Bq / m〜3，室外outdoors浓度为5.0（2.5〜10）Bq / m〜3；室内平衡系数为0.45（0.35〜0.57），室外平衡系数为0.70（0.50〜0.90）。男性在室内的占用系数为0.87，室外为0.13，女性在室内的占用系数为0.91，室外为0.09；男性的年度潮汐量为7,000（6,350〜7,900）m〜3，女性为6,600（6,100〜7,550）m〜3。年度潮气量是由日本估算的潮气量和居住时间乘以日本生活方式得出的结果。rn的有效年剂量估计为男性为0.55 mSv，女性为0.49 mSv，0.52均值的mSv。这些大约是1993年UNSCEAR报告中显示的价值的40％。由于该因子的范围，剂量范围是代表值的-75〜+175％。

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