查询词典 dose rate

In this study, for the complicated distribution of dose rate in time and space, considering the repair of the sub-death cells, the radionuclide decay law and exponential proliferation of clonogenic cells, the dose-response relationship is built based on the known linear-quadratic model, and the concept of tumor control probability is introduced into the therapy method. Furthermore, the concepts about "curable stage" and "critical time point" and the methods calculating the amount of radionuclide injected into tumor in clinical are proposed.

本课题针对这一方法中靶区复杂的剂量率时-空分布特点，以公认的"线性-二次模型"理论为基础，同时考虑亚致死性细胞修复、核素衰变规律和克隆原性细胞指数增殖，建立了适合这一治疗方法的具有时-空分布特点的剂量效应关系，并进一步将肿瘤控制概率的概念引入这一方法中，提出了"治愈期"及"临界时间点"的概念以及由此指导临床确定药物注射剂量的方法。

The effects of monomer concentration, radiation dose and dose rate on graft yield were discussed.

研究了辐射接枝反应中单体转化率、接枝率的变化规律。

Dose will be determined by the dose rate and irradiation time of the sample.

文中就确定吸收剂量的两种方法的可靠性进行了探讨，并利用两种类型的丙氨酸剂量计通过伴随法测定了被测样品的吸收剂量。

And the content of the free radical was affected by the dose and dose rate and declined with the prolong of time.

电子束辐照产生的极性含氧基团和自由基为UHMWPE纤维的表面接枝改性奠定了基础。

Objective: To study the distribution of dose rate on cultured cell plane delivered by 125I seed planar irradiation, and to establish a reference table on dose rate of 125 I seed planar irradiator for cell lines in vitro.

研究内容分以下五部分：第一部分 125I 籽源体外照射细胞的剂量分布研究目的研究 I 籽源体外照射的细胞平面剂量分布，建立 I 籽源体外照射 125 125 细胞剂量率参考模式表。

The radiotherapeutic dose over the whole pelvis was 30Gy to 36Gy by Co 60 unit or 15Mev. Linear Accelerator and further teletherapy with changed portal or brachytherapy of high dose rate (Co 60) followed according to location and size of the recurrence. The total vaginal one-centimeter submucosal dose was 75-80Gy.

治疗方法以放射线治疗为主：使用钴60或15MV光子射线先照射全骨盆腔30至36Gy的剂量；然后再按病灶部位及范围，或改变照野方向和大小继续作远隔治疗，或采用高剂量率腔内近接治疗，使阴道粕膜下1公分处总共接受75至80格雷的剂量。

The results of surface dose rate determined with lithium fluoride thermoluminescent dosimeter chips in water-organic glass phantom and air had no obvious difference and the surface dose rate and its uniformity,(3.46±0.011) and (0.178±0.15)nGy/h*107Bq were obtained.

用LiF热释光片在水-有机玻璃体模及空气中，分别作125I眼科巩膜敷贴器的表面剂量测定，结果在误差范围内无明显区别，得到的最终表面剂量及其均匀性分别为：(3.46±0.01)、(0.178±0.15)nGy/h*Bq。

In this paper, the measuring and alarming statistical characteristics of the intelligent probe are calculated and analyzed when it is used in γ and X radiation dose rate monitoring. Some aspects are pointed out when it is used to monitor environmental γ-radiation dose rate.

本文着重对这种智能探头在环境γ、X辐射剂量率监测中的测量和报警统计特性作了分析计算，并指出了该探头用于环境γ辐射剂量率监测时应当注意的几个问题。

The accumulated self-exciting dose for Na-24 is only 1.12 mGy during its average life-time for irradiation of total thermal neutron fluence of 3.6E12 nth/cm^2. Conclusions: Because of the self-exciting dose reduced from neutron activation can be neglected for gamma dose measurement in neutron and gamma mixed field, and the threshold of linear response is 2 Gy, the FWT-70-40 dosimeter not only can be used for high dose rate Co-60 irradiation field and the high energy electron beam for medical purpose, but also can be used for gamma dose measurement in an epithermal neutron beam for boron neutron capture therapy.

型号FWT-70-4OM）剂量计於BNCT高中子通量与剂量的中子、加马混合辐射场所产生的自激剂量，对加马剂量度量干扰可忽略，且对加马的最低剂量限值为2Gy，因此除可应用於钴60加马高剂量辐射场与放射治疗用高能量、高剂量电子射束的剂量度量外，亦可应用於BNCT照射治疗用高能量、高剂量的中子、加马混合辐射场的加马剂量度量。

Methods : We gave 0, 1, 2, 3, 4 times low dose total-body irradiation to control group (No. 1 group) and experiment group (No. 2, 3,4,5 group) respectively with γ irradiation .Each dose is 0. 1GY and dose rate is 1.28 cGY/min. The interval of each irradiation is 48 hours . Six hours after every group finished their own total dose , we kill the rats and get their thyme .

采用γ射线分别对对照组(1组)和实验组(2、3、4、5组)给予0、1、2、3、4次低剂量全身照射，单次剂量0.1GY，剂量率为1.28cGY／min，每次照射间隔时间48小时，各组在完成照射总剂量后6小时处死取胸腺，采用双参数直接免疫荧光流式细胞术，检测大鼠低剂量全身照射后胸腺细胞CD4、CD8、CD3~+T细胞的表达情况以及CD4／CD8的变化。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了