查询词典 crystal detector

Mercuric iodide (HgI_2) crystal is one of the most potential compound semiconductor materials for room temperature nuclear radiation detector.

碘化汞(Hgl2)晶体是制备室温下工作的核辐射探测器最有发展前途的化合物半导体材料之一。

Coupling La-doped BaF2 crystal to phototube is an effeCtive way to prevent signal pileup in ultra-fast radiation detector under strong γ field.

为提高强γ场超快辐射探测器抗信号堆积的性能，可采用BaF2与快的光电器件组合的技术途径。

We believe the experimental results obtained from BGO crystal are also suitable for other scintillator materials for which are tried to apply in PET detector applications.

该研究结果虽然是针对BGO晶体的，但是对于在PET应用中使用的闪烁晶体也具有普适意义。

We are also distributor of the following companies:Pfeiffer Vacuum-turbo molecular pump, other types of pumps, gauges, Helium leak detector, mass spectrometer; Maxtek, Inc-Quartz crystal thin film deposition controller and sensors; Telemark Inc-E-beam source and power supply, optical thin film monitor; Comdel, Inc-DC and RF power supply; Angstrom Sciences-Magnetron target and materials; Oxford Scientific Limited-Atom sources; Plasma Quest Ltd-Plasma systems for coating and etching; Sentech Instruments GmbH-Ellipsometers.

我们代理的产品包括德国普发真空的全线真空产品(分子泵等各种真空泵，真空计，检漏仪，质谱仪，各种真空零部件)；美国美泰克公司的石英晶体膜厚监测仪，传感器；美国泰利玛科公司的电子枪和光学膜厚控制仪等；美国康戴尔公司的射频，中频和直流电源；英国牛津科学公司的微波等离子体源，电子束蒸发源，原子源，高能电子衍射枪；英国PQL公司等离子体溅射镀膜设备，美国安斯超科学公司的磁控溅射阴极及溅射靶材，德国森泰科仪器公司的椭偏膜厚测量仪和等离子刻蚀沉积设备等。

The structures of two ordered smectic phases of HPAP liquid crystal, SmB and SmB was studied by small angle X-ray diffraction (Position-Sensitive-detec- detector method).

本文应用小角X光衍射研究了HPAP液晶所呈现的两种有序近晶相SmE和SmB结构。测量了近晶相的层厚及其与温度的关系。

The frequency synthesiser consists of a voltage controlled oscillator, a crystal oscillator, prescaler, programmable frequency dividers and a phase-detector.

该频率合成器包括一个压控振荡器，晶体振荡器，分频器，可编程分频器的频率和相位检测器。

Methods Anhydrous acetic acid as solvent, 0.1 mol/L perchloric acid as titrant, crystal violet solution as indicator to establish non-aqueous titrations and ODS column as stationary phase, methanol and a mixture of 0.025 mol/L sodium phosphate monobasic and 0.02 mol/L sodium dedecyl sulfate (80:20) adjusted with phosphoric acid to a pH (4.8±0.1J as mobile phase, 220 nm as detective wavelength to establish HPLC-UV method for determination of piperazinylethylestrone drug substance; FMOC-CL as a derivatization reagent, FD as a detector to establish an HPLC method with derivatization and column switching for determination of piperazinylethylestrone in dog plasma.

分别采用无水冰醋酸为溶剂，0.1mol/L高氯酸为滴定液，结晶紫指示液指示终点的非水滴定法和HPLC-UV法测定哌嗪雌酚酮原料药含量；以FMOC-CL为衍生化试剂，采用柱切换柱前衍生化萤光检测的HPLC法测定狗血浆中哌嗪雌酚酮含量。

Temperature measurement ; temperature measurement accuracy ; pyroelectric detector ; mechanical modulating disk ; liquid crystal valve

温度测量；测温精度；热释电；机械调制盘；液晶调制器

A new realtime temperature measurement system using lasers InGaAs/I and pyroelectric detector LiYaO3 of replacing mechanical modulating disk by liquid crystal valve was explored.

结果表明，利用液晶调制器改进后的测温系统在给定的温度范围中，测量精度均有明显的改善，符合测量要求。

Methods: Fat extracted from food and oil sample was determined directly on the ZnSe crystal cisterna of horizon attenuation total reflection equipment with deuterated triglycine sulfate detector in the FT-IR.

食品中提取的脂肪或油脂样品直接置于红外光谱仪的水平衰减全反射部件的槽式ZnSe晶体上，氘化三甘氨酸硫酸酯检测器检测。

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。

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。