光电倍增管

在传统的PET设备上使用的光电倍增管对磁场非常的敏感。

The photomultiplier tubes used in conventional PET machines are very sensitive to magnetic fields .

光电倍增管对数十ms级宽脉冲信号的响应特性研究

Study on the response characteristics of photomultiplier tubes measuring tens of milliseconds scale broad pulsed signals

保持各个光电倍增管的增益一致性对正电子发射断层成像（PET）的质量至为重要。

To make all PMTs'gains identical through auto-adjustment is important for ensuring the PET imaging quality .

研制成一台小型毛细管电泳芯片检测系统，该检测系统的特点是：用发光二极管（LED）作为激发光源；用光电倍增管完成光电信号的转换；

In the detection system , the blue LED was used as the exciting light source and the PMT was used as the optoelectronic converter .

CSR系统终端中子墙光电倍增管时间型分压系统的应用研究

Study of timing voltage divider system of PMT for neutron wall at CSR terminal

PPM量级纹波系数的光电倍增管恒流源

A constent current source for photomultiplier with ripple factor as low as several ppm

用位置灵敏光电倍增管读出的CsI（Tl）探测器

CsI ( Tl ) Detector With Position-Sensitive Photomultiplier Readout

快速MCP型光电倍增管中暗电流的分析与研究

Analysis and Research of Dark Current in High Speed MCP PMT

本工作研制的位置灵敏α探测器由一个ZnS（Ag）荧光屏、4根光纤束和4个光电倍增管组成。

A position sensitive a detector consists of a ZnS screen , four fiber bundles and four photomultipliers .

放置~3H、~（14）C溶液和闪烁体的瓶子是半球形的石英瓶或低钾玻璃瓶，底部直接耦合到光电倍增管的阴极上。

The vessel filled with 3H , 14C solution and scintillator is a hemispherical quartz or low-potassium glass vial , the bottom of which is coupled to the cathod of phototube directly .

用它测量了强流电子束在靶上能量沉积产生冲击波的速度，由光电倍增管探测连续波He-Ne激光束照射靶的后表面的反射光束。

He-Ne laser beam irradiates the rear surface of the target and the reflected light is detected by a photomultiplier .

将位置敏感光电倍增管（positionsensitivephotomultipliertube，简称PSPMT）引入大气湍流引起的漂移效应的实验测量中。

The position sensitive photomultiplier tube ( PSPMT ) was introduced to the experimental measurement of laser beam wandering induced by atmospheric turbulence .

从检测器上又分为以光电倍增管（PMT）为检测器的直读光谱仪和以CCD为检测器的直读光谱仪。

From the detector it can be divided into based on photomultiplier tubes ( PMT ) and based on CCD detector .

主要介绍光电倍增管的光电子幅度谱（单光电子及多光电子幅度谱）的几种常用的测试方法及用LED光源、EMI的光电倍增管精密测得的单光电子及多光电子谱。

This paper introduces a measuring method of photoelectron spectrum of the photomultiplier and our measuring results ( single photoelectron , two photoelectron , three photoelectron ) .

已建成一套用于CARS的实验它采用由一个氮激光器泵浦的两台染料激光器，并用光电倍增管和积分平均器检测了输出信号。

An experimental arrangement employing two dye lasers pumped by a single nitrogen laser has been set up for CABS and the output signal is detected with photomultiplier and boxcar integrater .

通过对双MCP级联技术的研究，研制出脉冲上升时间小于1ns，增益大于5×105的MCP光电倍增管。

MCP photomultiplier was developed by use of the sandwich MCP cascade technology .

用光电倍增管（photomultiplierPMT）的光子计数模式将电致发光的光信号转换为电信号来进行测试。

We consider testing it using photon counting mode of photomultiplier PMT to transform light signals into electric signals .

适合微光探测应用，光电倍增管（PMT）提供极高的灵敏度和超快速响应。

Suitable for low-light-level detection applications , the photomultiplier tube ( PMT ) provides extremely high sensitivity and ultra-fast response .

光电倍增管（PMT）模块结合了一个高压电源光电倍增管，并往往结合其他信号处理电子器件。

Photomultiplier Tube ( PMT ) modules combine a PMT with a high voltage supply and often other signal processing electronics .

利用不同标定源对美国Daybreak582、583型低本底厚源ZnSA1pha计数仪光电倍增管高压（HV）和积分甄别器阈值电压（DISC）进行了标定，并与示波器标定结果进行了对比。

First , this study compares thick source ZnS alpha-counting calibration results of the photomultiplier tube ( PMT ) high voltages and thresholds calibrated by the oscillograph with those by different sources .

采用双法布里-珀罗（Fabry-Perot）干涉仪（DFP）和光电倍增管探测器，分析分子散射信号，得到对流层风场。

The wind profile above PBL is sounded by double Fabry-Perot ( F-P ) interferometer and two PMT from molecular backscattering signals .

光电倍增管的应用条件对闪烁探测器坪特性的影响随合金LaCe比的降低，合金的放电容量略有下降，但其循环寿命和放电电压平台有较大提高。

It was also found that cycle life and discharge voltage plateau characteristics are improved markedly with the decrease of ratio of La / Ce , although discharge capacity of the alloy decreases slightly .

提出了基于菲佐干涉仪和多通道光电倍增管（PMT）阵列探测器组合的多普勒频移检测的方案，适用于风速测量的直接探测多普勒激光雷达。

A method of discriminating Doppler shift using Fizeau interferometer and linear PMT array for a direct - detection wind Doppler lidar is proposed .

位置灵敏型光电倍增管（PSPMT）代表了基于单个管子的原理开发新概念γ相机的技术进步。

Position sensitive photomultiplier tube ( PS PMT ) represents a technological improvement in the development of new concept gamma cameras based on the principle of a single tube .

介绍了一种利用光电倍增管作为探测器的光栅扫描式单通道分光测色仪的单片机电路设计和利用C语言程序直接对串口芯片的寄存器进行读取操作的数据采集技术。

The construction and function of the correlative circuit , the data collection technology to read data directly from register in COM by using C language for one type of single-channel spectrophotometer , which has a grating scanner and uses a photomultiplier as detector , are detailed .

本课题根据实验教学光谱检测的要求，在深入分析光谱仪的一般结构和原理的基础上，研制了一种实用的CCD和光电倍增管（PMT）相结合的多功能光栅光谱仪。

Due to the request of experimental teaching , a multi-function grating spectrometer is designed on the basis of deeply analysis of the construction and principle of spectrometer , which combines CCD and PMT .

GDB-49型光电倍增管在正电子寿命测量中的应用

The Application of Model GDB-49 Photomultiplier to Measurement of Positron Lifetime

实验中TOF模型由塑料闪烁体（塑料闪烁体外包有光反射材料）和两端耦合的光电倍增管构成。

In the experiment , TOF model was made up of a plastic scintillator ( wrapped with some reflective materials ) and two PMT coupling on the both end of the scintillator .

将从光电倍增管中传出的信号经过前置放大和程控放大后直接进行高速A／D转换输入到FPGA中，在FPGA中完成后续运算，计算出γ事件发生的位置和能量。

The signals coming from photomultipliers are amplified by preamplifier and programmable amplifier , then processed by high-speed analog-to-digital ( A / D ) converter and is transferred to FPGA . In FPGA it has following processes to calculate the position and energy of γ events .

采用符合方法，测量级联γ放射源60Co在光电倍增管（PMT）光阴极窗上激发产生的切伦科夫光，从而测定PMT渡越时间涨落。

Using coincidence method , transit time spread ( TTS ) is measured with Cherenkov light produced by cascade γ radioactive source , 60Co on photocathode window of photomultiplier tube ( PMT ) .