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    PORTABLE SCINTILLATION X OR GAMMA DOSE RATE METERS, TYPE SG 101, FOR MEASURING ENVIRONMENTAL RADIATION
    用于环境X,γ辐射测量的SG 101型可携式闪烁剂量率仪
    PORTABLE SCINTILLATION X OR GAMMA DOSE RATE METERS,TYPE SG 101,FOR MEASURING ENVIRONMENTAL RADIATION
    用于环境X,γ辐射测量的SG101型可携式闪烁剂量率仪
    CONTRIBUTIONS TO INDOOR GAMMA DOSE RATE FROM BUILDING MATERIALS
    建筑材料对室内γ剂量率的贡献
    The gamma doses of animals were obtained by continuous exposure to~(60)Coγ-rays for 10 days with an exponential decrease. simulating the trendof tritium concentrations in ovary. The accumulative doses received during10 days were 52.6,77.18.108.22.161.87.194.25 and 269.88 radrespectively.
    ~(60)Coγ射线外照射大致是模拟氚在卵巢内呈指数下降方式的剂量连续照射10天,每天照射22小时,10天内各照射组小鼠全身的累积剂量分别为52.6、77.18、108.22、161.87、194.25和269.88拉德。
    For the specified 200V VDMNOSFET,the threshold voltage shifts is only -0 5V at a Gamma dose of 1Mrad(Si) with +10V gate bias; the transconductance is degraded by 10% at a Gamma dose of 1Mrad(Si);
    对研制的 2 0 0 V VDMNOSFET,在栅偏压 +10 V,γ 总剂量为 1Mrad (Si)时 ,其阈值电压仅漂移了 - 0 .5 V,跨导下降了 10 % .
    The averaged gamma dose rate is 12.9×10~(-8)Gy/h,about 11.1%higher than the previous investigated results.
    kg-1; 空气γ吸收剂量率的平均值为12.9×10-8Gy/h,与既往福建省调查结果的偏差为11.1%。
    THE SIMULATED MEASUREMENT OF AREA AND PERSONAL NEUTRON-GAMMA DOSE EQUIVALENT IN THE BUILDING OF HWRR
    研究性重水反应堆厂房内场所与个人中子、γ剂量当量的测定
    The results suggest that the gamma dose monitoringinstrument used in the fallout radiation field,may successfully becalibrated with the broad parallel gamma radiation of 1.25MeV under thecondition of rotated exposure.
    对于在落下灰γ辐射场中测量人体红骨髓平均剂量的仪器,可用1.25MeVγ射线平行宽束旋转照射条件进行刻度。
    It is needed to deduct the response to cosmic-ray from meter readings R for measuring terrestrial gamma radiation dose rate D_γ by sintilation gamma dose rate meter with energy compensation. For this purpose,there are two methods usually adopted:Method Ⅰ:(?) _(γ,1)=R-R_w((?)
    在用有能量补偿的闪烁型γ辐射剂量率仪测定陆地γ辐射剂量率D_γ时,需要从读数R中扣除对宇宙射线的响应。
    On the basis of the stochastic property of quantized events,produced by gamma rays interacting with the medium,and the concept of hit in microdosimetry,a function derived from statistical poisson distribution is generalized to describe the dose reponses for various gamma radiation dosemeters as a fundamental equa-tion. It is described that the inearity,sublinearity and supralinearity of gamma dose responses depend on the two haracteristic parameters,characteristic dose Do and one hit factor R.
    本文导出一次击中和二次击中相叠加的响应函数,作为描述各种γ辐射剂量计响应的基本方程,引入特征剂量D_0和一次击中因子R,并阐明了辐射剂量响应的线性、超线性和亚线性与这两个参量的关系。
    The Natural Radionuclide(~(238)U,~(226)Ra,~(232)Th and ~(40)K)contents in samples of soil,commonlyused building materials and construction materials for roads have been determined in Hong Kong. Fromthe measured radionuclide contents,estimations have been made of the absorbed gamma dose rate in airand indoor Radon concentration. The estimated results have been compared with in-situ measurements.
    本文报道了香港地区土壤、常用建材及路基体中~(238)U、~(226)Ra、~(232)Th 和~(40)K 含量的测量结果,由此估算了空气γ吸收剂量率和室内氡浓度,并且与初步实测值进行了比较。
    The experimental results show that the transmitter is capable of resistant radiation and can work properly at gamma dose rate of 8x10~17/s.
    实验表明,激光二极管光发射机具有较强的抗辐照干扰能力,无扰动γ注量率为8x1017/s·cm2;
    MWIR HgCdTe photoconductive device has been irradiated with different gamma doses. The response spectrum, bulk resistance and its responsivity, detectivity were measured before and after gamma irradiation.
    对中波HgCdTe光电导器件用不同剂量的γ射线进行辐照,测量了其辐照前后的响应光谱、体电阻和响应率、探测率的变化。
 

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