结果表明,使用CH151型光子计数探测器作为检测器,灵敏度高,基线稳定,信噪比高。
The results indicated that CH151 photon counter detector showed better selectivity and stable baseline.
从技术上讲,盖革计数器只是辐射探测器的一种,但是很多人用它来指代所有的辐射探测设备。
Technically, Geiger counters are just one type of radiation detector. But many people use the term to describe all radiation detection equipment.
连续测量的水流速度是通过不同源距探测器计数率的比值来确定。
Water-flow velocity of continuous measurement was determined by the ratio of count rate value of different source spacing detectors.
在探测器电路中采用猝灭电路,延长了G-M计数管的使用寿命。
The quenching circuit in the detector lengthens the using lifespan of G M counter.
本文给出了距离选通光子计数系统的信噪比模型并讨论了激光回波与探测器选通门之间的同步问题。
This article provides the signal-to-noise ratio module of the range-gating photon counting system and discusses the synchronization between the laser echo wave and the detector gate.
该探测器属于光子计数成像探测器,具有增益高、图像畸变小、分辨率高等优点。
This detector is a kind of photon counting imaging detectors, which has some properties such as high gain, small distortion and high resolution.
本文介绍一自动计数和数据处理的微型计算机装置,它是由半导体探测器、电荷灵敏放大器、成形电路和一微型计算机组成。
A device for automatic counting and data reduction is introduced. This device consists of a semiconductor detector, a charge sensitive amplifier, a pulse shaping circuit and a microcomputer.
本文叙述了固体径迹探测器和火花计数器的基本结构及在氡监测上的应用。
The general structure of the SSNTDs and spark counters and their application in radon monitoring are described.
介绍了利用PND测井资料进行气层识别的方法,即利用近探测器计数率和远探测器计数率以一定比例进行重叠的方法识别气层。
The method for recognizing gas zone with PND logging data is introduced, which is to overlap the counting rates of a near detector and a far one to recognize gas zone based on certain scale.
本文介绍了用于测量穆斯堡尔发射谱的一种探测器——雪崩计数器,详细讨论了它的性能和特点。
In this paper a parallel-plate avalanche counter for measuring Mossbauer emission-spectrum is described, the properties and the characteristics of the detector are discussed in detail.
各向异性系数的准确度主要取决于探测器计数的统计误差。
The accuracy of anisotropic coefficient mainly depends on the statistical error of the counting.
文中介绍了气体电离探测器,固体、气体闪烁计数器,半导体探测器以及量子微量热器等方面的国外近年进展简况。
The recent progress in gas ionization detectors, solid and gas scintillator counters semiconductor detectors and quantum microcalorimeter abroad are described in this paper.
用MCNP/4B程序,对核活化法反应计算中的截断能量、通量计数方式、数据库、阈探测器之间的扰动等因素的影响作了分析。
With MCNP/4B code, the influence of cut-off energy, flux tallies, nuclear databases and perturbation on the reaction rates calculation with neutron-activation method are analysed.
讨论了高压和气体比例对探测器计数率和能量分辨率的影响。
The effect of high potential and gas proportion on the count rate and the energy resolution was discussed in detail.
本文介绍了对脉冲中子辐射场探测和一种可以防止漏计数又可实时监测的中子探测器的研究。
A new type of neutron detector which can avoid counting loss and carry out real-time measurement for pulsed neutron field will be introduced in the paper.
球腔内超热与热中子计数比小于10%,计数率依赖于热中子探测器所在位置。
Inside the sphere cavity, the ratio of ultra thermal neutron counting rate to thermal one is less than 10%, but the counting rates slightly depend on the position of thermal neutron detector.
介绍了使用自制的材料制作的大面积阻性板探测器模型的结构和利用宇宙射线测量的效率曲线、单计数率曲线、暗电流曲线、多重计数和信号幅度随高压的变化曲线。
In this paper, the structure of RPC, the curves of efficiency, counting rate, dark current, multiple hit and signal amplitude versus high voltage measured using cosmic ray are presented.
针对20%孔隙度饱和水的石灰岩地层,应用蒙特卡罗方法模拟了探测器计数在地层径向、纵向和空间上的变化,进而模拟得到不同源距处探测器计数随地层径向深度变化的关系曲线。
By the Monte Carlo method, the changes of detector tallies in formation radial, longitudinal direction and space has been simulated for the formation of water saturated limestone with 20% porosity.
为了达到最好的探测效率和最小的暗计数,存在一个最佳工作温度;而且探测器噪声对温度相当敏感。
There exists an optimal operation temperature to satisfy the highest detection efficiency with the lowest dark counts and the dark counts are sensitive to the temperature.
为了达到最好的探测效率和最小的暗计数,存在一个最佳工作温度;而且探测器噪声对温度相当敏感。
There exists an optimal operation temperature to satisfy the highest detection efficiency with the lowest dark counts and the dark counts are sensitive to the temperature.
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