查询词典 crystal detector
- 与 crystal detector 相关的网络例句 [注:此内容来源于网络,仅供参考]
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An about 18-day test run has been finished and the veto efficiency of CsI crystal anti-Compton detector is about 31% and the event rate of background spectrum of HPGe detector is about 133cpd.
实验数据表明,CsI晶体探测器的反符合效率约为31%,HPGe探测器的本底计数率水平约为 133cpd。
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In-vivo neutron and gamma spectra of depleted uranium sphere and vanadium sphere under central D-T neutron source were measured,with a 18 mm×20 mm stilbene crystal detector, at 7,10,13,16,19,22 cm away to the center in 45° direction in depleted-uranium sphrer, and 1.8,4.8,8.3 cm away to the center in the 0° direction in V sphere.
为获得介质内中子能谱及伴生γ能谱的实验数据,在中心D-T中子照射下,用18 mm×20 mm的茋闪烁体探测器,测量了与D+束成45°角的水平方向距球心7、10、13、16、19、22 cm位置处贫化铀球介质内的中子能谱和伴生γ能谱,以及钒球内与D+束成 0°角、距离球心1.8、4.8和8.3 cm处的中子能谱和伴生γ能谱。
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The radiation imaging array solid detector includes flash crystal of cesium iodide or cadmium tungstate, photodiode coupled with the flash crystal and casing holding the flash crystal and the photodiode.
本发明包括由碘化铯或钨酸镉形成的闪烁晶体和与之耦合的光电二极管,闪烁晶体和光电二极管由壳体包容。
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We used coupling phototube convert the voltage of reflector voltages of klystron linearly to lower voltage, and convert the lower voltages of standing wave measuring line and crystal detector inputting power linearly to higher voltages by operation amplifier. Then we inputted these voltages to computer by analog-to-digital card and plotted the graphs of working characteristics of reflecting klystron with software .
利用光电耦合器将速调管反射极高电压线性转换为低电压,同时将驻波测量线测得电场强度的电压值和晶体检波器所测得的反射式速调管输出功率的电压值通过运算放大器线性放大,然后经过模数转换卡采集到微机中,利用软件绘制出速调管的工作特性曲线。
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It includes: the selection of detector crystal, the design of geometrical dimension of the detector, the magnetic shield of detector, shield of fast neutron and thermal neutron, distribution of fast neutron in formation, the investigation depth of logging tools and the spacing.
本文第三章介绍了对双晶C/O能谱测井仪研制过程中遇到的主要物理问题进行研究的情况,内容包括:探测器晶体选择、探测器几何尺寸设计、探测器磁屏蔽研究、快中子屏蔽、热中子屏蔽、快中子地层分布、仪器探测深度及源距等。
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Dark matter ; CsI(T1) crystal detector ; pulse shape discrimination ; internal background
暗物质; CsI探测器;脉冲形状甄别;内部本底
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The authors used coupling phototube convert the voltage of reflector voltages of klystron linearly to lower voltage and converted the lower voltages of standing wave measuring line and crystal detector inputting power linearly to higher voltages by operation amplifier. Then inputted these voltages to computer by analog-to-digital card and plotted the graphs of working characteristics of reflecting klystron with software.
利用光电耦合器将速调管反射极高电压线性转换为低电压,同时将驻波测量线测得电场强度的电压值和晶体检波器所测得的反射式速调管输出功率的电压值通过运算放大器线性放大,然后经过模数转换卡采集到微机中,利用软件绘制出速调管的工作特性曲线。
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In the end of the paper, simulating the different energy gamma photons response through the nude NaI crystal detector and getting the response in 137Cs window from the different kinds of radionuclide, such as the response of 238U、 232Th、 40K and 137Cs itself in 137Cs window, getting the response in NaI multi-channel gamma spectrum from different nuclides.
本论文是利用蒙特卡罗方法模拟伽玛光子在NaI多道伽玛能谱响应,本论文介绍了蒙特卡罗方法以及该方法在核物理的应用,介绍了蒙特卡罗方法在计算机中的实现以及一种应用软件—MCNP—4B,最后具体模拟不同能量的伽玛光子在裸晶体NaI中的响应,得到NaI多道伽玛能数据中~(137)Cs窗中天然放射性核素,如~(238)U、~(232)Th、~(40)K,以及~(137)Cs本身在~(137)Cs窗中的响应,得出~(238)U、~(232)Th、~(40)K、~(137)Cs的响应函数。
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It is composed of six parts: PCI Bus interface module, signal generator, signal adjustor, gain and phase detector, A/D conversion module and control and data process module. The system can measure the gain and phase curves of the crystal with the frequency range from 1MHz to 150 MHz. Crystal parameters can also be calculated, such as resonant frequency, series resistance, shunt capacitance, motion capacitance, motion inductance and Q factor, etc.
该测试卡以 IEC 444 标准为测量原理,由 PCI 总线接口模块、信号发生器、信号调理模块、增益相位检测电路、A/D 转换模块等部分组成,能够有效测量 1MHz~150 MHz 频率范围的晶振的增益与相位特性、串并联谐振频率、等效电阻、动态电容、动态电感、品质因数和负载频率等主要电参数。
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The response of ultra fast photoconduction detector made of SI-LEC GaAs crystal was studied experimently. The response time to picoseconds pulse laser and sensitivity to 532 nm direct current laser were obtained for GaAs detector.
实验研究了具有极快响应的SI-LEC GaAs光电导辐射探测器的响应,测量它对皮秒级脉冲激光的时间响应及对532 nm直流激光的灵敏度。
- 推荐网络例句
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Fancy gold-plated dangling earrings with facetted White Opal crystals.
花式镀金悬垂耳环与facetted白欧泊水晶。
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This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.
本文选取石家庄市初中生物教师作为研究对象,运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查,调查结果发现,石家庄市初中生物教师这一群体普遍存在职业倦怠,情感枯竭程度偏高,成就感偏低,去个性化程度最为严重。
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In measurements of a day,generallyspeaking,the photosynthesis of birch in mesophytic habitat is better than that in xerophytichabitat(peak values are 12.8,10.33μmolCO2m-2s-1 respectively);that of sexual birch inmesophytic habitat is better than that of clone birch(peak values are 9.87,6.71μmolCO2m-2s-1respectively);that of young tree is better than that of seedling(peak values are12.37,10.05μmolCO2m-2s-1 respectively).
在一天中的各个时刻,总体说来,中生生境生长的白桦光合作用超过旱生生境生长的白桦光合作用(净光合速率峰值分别为12.8、10.33μmolCO2m-2s-1);白桦幼树的光合作用超过白桦幼苗(净光合速率峰值分别为12.37、10.05μmolCO2m-2s-1);中生生境有性白桦的光合作用超过无性白桦的光合作用(净光合速率峰值分别为9.87μmolCO2m-2s-1、6.71μmolCO2m-2s-1)。