放射性计数是核探测中的基本方法。
Counting of radioactivity is a important method in nuclear detecting.
结果：支气管分泌物的糖含量与放射性计数不相关。
Results: Through correlation analysis, radioactivity counts and glucose content in the bronchial secretion had no correlation.
结果AD组各神经心理学测验量表评分及SPECT放射性计数比值均低于正常对照组。
Results the values in SPECT radioactive count ratio and scores of neuropsychological tests were lower in the AD patients than that in normal subjects.
盖革计数器示出放射性粒子的高浓度。
The Geiger counter registered a high concentration of radioactive particles.
Tooby回忆到，当他还是学生时，他曾用盖革计数器向一家人表明，他家的瓷器比周围其他物品更具放射性。
Tooby recalled, while still a student, using a Geiger counter to show a custodian that his household Chinaware was more radioactive than other objects nearby.
在低水平放射性测量中，建议采用负二项式分布代替泊松分布来描述真实测量计数的几率分布。
In the measurement of low-level radioactivity, instead of Poisson distribution, a negative binomial distribution is proposed to denote the probability distribution of actual counts.
对放射性强度跨越1000倍动态范围(10个半衰期)的跟踪测量中影响相对峰计数率精确测定的因素进行了讨论。
Factors influencing precise measurement of relative peak counting rates are discussed in time-series measurements over a dynamic range of 1000-fold radioactive intensities (10 half-lives).
本文从原理上分析了采用舍选法进行随机抽样，得到符合放射性衰变统计规律的模拟计数值，并用TC进行了编程实现；
The principle of simulation of the statistics counting of radioactive nuclear decay based on the rejection method is presented, and the simulation is implemented with TC programming.
利用放射性源的伽马射线轰击井眼周围的岩石，通过对反散射伽马射线计数，可以计算出地下岩石的密度。
A radioactive source is used to bombard the rocks surrounding the wellbore with gamma rays. By counting the backscattered gamma rays, the density of the subsurface rock can be computed.
②由图像像素的累积计数、采集时间及定标系数确定像素的放射性浓度 ，其关系可以一经验公式表示。
The radioactive concentration of lesion pixel depended on the pixel counts, the acquisition time and CF, and the relationship was expressed with an empirical formula.
还有一种地球物理勘探仪器，这就是盖格计数器。它用来探查放射性物质的存在。
Still another geophysical device. That is Geiger counter, which detects the presence of radioactive substances.
在液闪计数装置中采用这种对数放大器实现了对一些放射性核素活度的绝对测量。
Using this amplifier in a liquid scintillation counting device, absolute measurements of the activity of some radionuclides have been realized.
文章对用于放射性核素测量的切连科夫计数技术作一综述。
In the article, the Cherenkov counting technique for assying radionuclides is reviewed.
给出了快对数电荷放大器动态测量范围的测量方法以及采用这种对数电荷放大器的液闪计数装置对放射性溶液活度绝对测量的测量结果。
A method for measuring the dynamic range of the fast logarithmic charge amplifier is described. Finally, the results of absolute measurement of the activity of...
给出了快对数电荷放大器动态测量范围的测量方法以及采用这种对数电荷放大器的液闪计数装置对放射性溶液活度绝对测量的测量结果。
A method for measuring the dynamic range of the fast logarithmic charge amplifier is described. Finally, the results of absolute measurement of the activity of...
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