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gamma ray dose
相关语句
  γ剂量
     THE APPLICATION OF MONTE CARLO METHOD IN SENSITIVITY CALIBRATION OF GAMMA RAY DOSE RATE
     蒙特卡罗方法在γ剂量率灵敏度标定中的应用
短句来源
     In the process of measurement and calibration of gamma ray dose rate,GD 40 is used as gamma ray detector to measure gamma ray dose rate.
     在γ剂量率测量标定中,使用GD-40管作为γ探头来测量γ剂量率。
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  “gamma ray dose”译为未确定词的双语例句
     In comparison with the different gamma ray dose and different genotypes, the rate of low dose (150 Gy) was different among four cult ivars.
     对不同剂量,不同基因型而言,低剂量(150Gy)对4种基因型的植株再生率影响较大。
短句来源
     Results The cells of G_1, S or G_2-phase fraction increased at different time after CNE-2 cells exposed to the fractionation of the~(60) Co gamma ray dose(4.0,6.0 or 8.0 Gy).
     结果4.0、6.0、8.0Gy60Coγ射线分割照射CNE2细胞不同时间可发生G1、S和G2期细胞比例增多。
短句来源
     There was not significant difference in the expression of both CDK4 mRNA and PCNA between each irradiated groups and the control group (P>0.05). Conclusions ①G1,S and G2 phase delay were observed after CNE-2 cells exposed to the fractionation of the (60)~Co gamma ray dose(4.0,6.0 or 8.0Gy). G_1 arrest exhibited an dose-dependent increase.
     4.0、6.0、8.0 Gy 组分割照射CNE-2 细胞第3 天(次)cyclin D1mRNA 表达水平各照射组间无明显差别(P>0.05);
短句来源
     The structure properties of VO 2 thin films were investigated by XRD and Raman spectra before and after gamma ray irradiation with dose from 35kGy to 3500kGy. The XRD patterns and the Raman spectra intensity and peak value of B 1g line were changed by different gamma ray dose irradiation,which indicate structure variation appeared in irradiated samples.
     利用剂量为 35kGy - 35 0 0kGy的Co60 源辐照VO2 薄膜 ,对辐照后薄膜进行XRD和激光Raman光谱测试。
短句来源
     As a result of the present study, different genotypes, gamma ray dose were effective on the rate of plants regeneration.
     结果发现基因型、辐射剂量都对植株再生率有极显著的影响。
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  相似匹配句对
     Gamma-Ray Bursts
     γ射线暴研究概况
短句来源
     Gamma-ray Emission from Pulsars
     脉冲星的γ辐射
短句来源
     dose irradiation.
     含量比未经辐射的低,表明适宜剂量辐射可以提高幼苗耐热性。
短句来源
     The dose survival curve of E.
     剂量存活曲线呈现-“肩区”。
短句来源
     dose setting and auditing;
     灭菌剂量的设定与验证;
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  gamma ray dose
The gamma-ray dose corresponds to the treatments applied to the maize chromosome 9 monosomic addition line seed that gave rise to the M9RH's.
      
The gamma-ray dose corresponds to the treatments applied to the maize chromosome 9 monosomic addition line seed that gave rise to the M9RHs.
      
They estimate that the theoretical maximum wholebody gamma-ray dose-rate from external exposure to depleted uranium is 0.025mSv per hour.
      
This means that the ratio of neutron to gamma-ray dose estimates is smaller than in the past.
      
Shown in Figure 4 is the sensor resistance as a function of gamma-ray dose at 4.22 K.
      
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As Guangluai 4 dry rice seeds were treated with 0,150,300 and 450 Gy of gamma-rays and 0.1,0.2 and 0.3 mmol of EMS solutions,the study on biological effects in M_1 and the mutation frequen- cy in M_2 showed that the biological injuries of M_1 increased with the increase of gamma-ray doses and EMS concentration.Additive effects were observed on plant height,root length,vigor index of plant height and chromosome aberration,while synergic effects on the setting percentage and vigor...

As Guangluai 4 dry rice seeds were treated with 0,150,300 and 450 Gy of gamma-rays and 0.1,0.2 and 0.3 mmol of EMS solutions,the study on biological effects in M_1 and the mutation frequen- cy in M_2 showed that the biological injuries of M_1 increased with the increase of gamma-ray doses and EMS concentration.Additive effects were observed on plant height,root length,vigor index of plant height and chromosome aberration,while synergic effects on the setting percentage and vigor index of root length.The results suggested that the treatment of 300 Gy gamma-rays combined with 0.3 mmol EMS be the most effective.Mutation frequencies of chlorophyll,heading stage and plant height in M_2 generation were 4.02,4.33 and 4.05 respectively.The coefficients of interaction were 1.03,1.31 and 1.27 respectively.

水稻品种广陆矮4号的干种子产经0、150、300和450Gy 的γ射线和0、0.1、0.2和0.3mmol 浓度的 EMS 复合处理后,从 M_1代生物学效应和 M_2代突变表明,M_1代的损伤效应随γ射线的剂量和 EMS 的浓度提高而增加。苗高、根长、苗高活力指数、细胞畸变率表现累加效应;根长活力指数和结实率存在着协合效应。复合处理的最佳剂量组合为300Gyγ射线与0.3mmol EMS 复合处理,其叶绿素突变、抽穗期和株高突变频率分别为4.02%、4.33%和4.05%,相互作用系数频率分别为1.03、1.31和1.27,表现为正的协合作用。

The fast neutrons are produced by the nuclear reaction of 35 MeV protons from the accelerator with theberyllium target. Usually, it is neeessary to conduct relevant radiobiological experiments before a new fast neutronbeam is put into clinical use for the purpose of characterizing the neutron beam. As a dosimetric support to theradiobiological experimants, the neutron doses and the accompanying gamma ray dose in the p(35)Be neutron fieldwere measured with paired-chamber method. The determination methods...

The fast neutrons are produced by the nuclear reaction of 35 MeV protons from the accelerator with theberyllium target. Usually, it is neeessary to conduct relevant radiobiological experiments before a new fast neutronbeam is put into clinical use for the purpose of characterizing the neutron beam. As a dosimetric support to theradiobiological experimants, the neutron doses and the accompanying gamma ray dose in the p(35)Be neutron fieldwere measured with paired-chamber method. The determination methods and the values determined for the fac-tors and parameters used in dose calculation are described. The tissue kerma rate distributions in the irradiationfield are reported as well as the conversion coefficients from kerma to absorbed dose for experimental mice ofwhole body and thigh exppsure and for specimens of blood and cultured eells. Finally the errors of dose determina-tion are discussed.

报道了p(35)Be快中子、γ混合辐射场生物剂量参数,说明了采用双电离室方法测量p(35)Be快中子时,剂量计算中有关因子和参数的确定原则和估算结果;给出了辐射场的中子/γ比,照射野内组织比释功能率分布,以及由比释动能率计算小鼠全身与局部照射和血液样品照射时的吸收剂量转换系数等剂量学参数;最后还对剂量测量的误差问题做了分析。

For measurements of environmental gamma-ray dose rate byusing G-M counter dose rate monitors ,thepaper diseusses the methods ofenergy response improvements relative to H_(10). The energyrespones of energy-compensated G-M tubes will be better than± 30%inmonoenergy field(include the narrow spectrum and lowair kerma rate Xradiation field of ISO 4037).Meanwhile,in some special garmma radiationfield,the maxium er-rors will be less than± 15%.The effects of internal radioactiVlty background...

For measurements of environmental gamma-ray dose rate byusing G-M counter dose rate monitors ,thepaper diseusses the methods ofenergy response improvements relative to H_(10). The energyrespones of energy-compensated G-M tubes will be better than± 30%inmonoenergy field(include the narrow spectrum and lowair kerma rate Xradiation field of ISO 4037).Meanwhile,in some special garmma radiationfield,the maxium er-rors will be less than± 15%.The effects of internal radioactiVlty background of G-Mcounter on the lower lim-it of gamma dose rate measuring assembly are also discussed.If theinternal background could be substractedcarefully ,the lower limit ofdetection will be down to level of 10 ̄(-8)Gy/h,so the instruments can beused to mea-sure the environmental gamma-ray dose rate.(

本文针对G-M计数管剂量率仪器用于测量环境辐射水平,讨论了其能量响应的改进方法、自身本底的影响以及在典型Y辐射场中能量响应所造成的极端误差。G-M计数管经过包适当的能量响应补偿层,单能能响可以达到好于±30%.在典型Y辐射场中能量响应所造成的极端误差不超过士15%。经过扣除自身本底,测量下限可以达到IO ̄(-8)Gy/h的量级,兼顾一般环境辐射水平的测量。

 
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