光电倍增管

In thisdissertation, by using photomultiplier tube and photoconductive audion respectively,the software and hardware of detector are realized.

本文分别采用了光电倍增管和光敏三极管作为光电转换部件，实现了检测器的软件与硬件设计。

AIM: To analyze the influence of Photomultiplier Tube voltage biasing circuit on the performance of PMT, and to take corresponding measures for elevating the accuracy of PMT voltage biasing circuit accuracy to improve the performance of PMT.

目的：分析光电倍增管电压偏置电路对光电倍增管性能的影响，并采取相应措施提高光电倍增管电压偏置电路的精度，以改善光电倍增管的性能。

METHODS: On the basis of PMT passive voltage biasing circuit, Bipolar Transistor or Field Effect Transistor were used. Additionally,"adjustable constant current technology" was adopted to avoid the effect of temperature on circuit.

在电阻型光电路倍增管偏置电的基础上，增加双极型晶体管或场效应晶体管构成有源光电倍增管偏置电路；并采用可调恒流技术，以解决温度对电路的影响。

PbWO4 and CeF3 which are newly developed inorganic scinti1latr in our country have been studied. Photo-electricity detector systemes which have high γ sensitivity and relative insensitive to neutron and fast time response were assembled by using CeF3 and photomultiplier tube. The ratio of signal-to-noise for γ ray detection can be up to more than 10 times in close distance n,γ commix pulse radiation field by using this detector system.

对PbWO4和CeF3等近年国内新研制的无机闪烁体进行了系列研究，使用CeF3分别配光电倍增管和光电管，组合出了对γ辐射灵敏度高，对中子相对不灵敏，同时脉冲响应也快的光电探测系统，应用以此为基础的探测技术在近距离n，γ混合脉冲辐射场中，可将脉冲γ辐射探测信噪比提高一个量级以上。

In the described system, in order to transmit the narrow-band analog signals or low speed digital signals at any time and under any climatic condition, sun-blind-region ultraviolet is used as information carrier, the modulated low voltage mercury-vapor lamp is used as emission device.

所描述的系统是以日盲区紫外光作为信息载体的，用被调制的低压汞蒸汽紫外放电灯作为发射器件，以日盲型滤光片和光电倍增管或日盲型紫外光电倍增管作为接收器件，以达到在任何时间和在任何气候下完成窄频带模拟或低速数字信号的传输。

Precise testing method of faint photic signal comes into being while mulitplier phototube appears which has low noise and high gain.

随着低噪声、高增益的光电倍增管的出现，比较精确地测量微弱光信号成为可能，于是在此基础上提出了采用光电倍增管来测试像增强器噪声的方法，实验中发现这种方法能比较准确并直观地反映像增强器噪声大小。

On the basis of ultraviolet standard detector in National Institute of Standard Technology, the absolute criterion was transferred to the responsivity unknown ultraviolet silicon detector, ultraviolet multiplier phototube and the ultraviolet solar blind photomultiplier.

以NIST(美国国家标准技术研究院)紫外标准探测器为基准，在200~400 nm波段对响应度未知的紫外硅探测器，紫外增强型光电倍增管和日盲型紫外光电倍增管进行了绝对标准的传递和光谱响应度、量子效率的标定，并在350 nm对紫外硅探测器的空间均匀性进行了标定。

A circuit for taking out timing signal from one dynode of photomultiplier is described.

介绍一种从光电倍增管倍增极引出快信号的电路。

The photoelectric transducer s, like photomultiplier tubes and junction photodiodes, are more widely used today.

如今光电传感器，如光电倍增管和连接的光电二极管被广泛使用。

The photoelectric transducers, like photomultiplier tubes and junction photodiodes, are more widely used today.

如今光电传感器，如光电倍增管和连接的光电二极管被广泛使用。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。