标题： 一种用于测量光电倍增管线性的LED脉冲发生器 显示英文标题

标题： An LED pulser for measuring photomultiplier linearity

摘要： 一种用于测试光电倍增管(PMT)对闪烁体类似脉冲的低速率响应的发光二极管(LED)脉冲发生器已被设计、开发和实现。 该脉冲发生器旨在模拟80纳秒半高全宽的光子脉冲，以覆盖PMT的动态范围，从而精确确定PMT的线性度。 这种特殊设计的优点在于，与许多LED测试装置不同，它不需要使用多个校准过的LED，使其不受LED增益漂移的影响。 相反，使用两个LED进行有限差分测量，这两个LED无需彼此校准。 这些测量提供了优于1%的响应函数映射，使得可以测试和开发特别线性的PMT基座。 显示英文摘要

摘要： A light-emitting diode (LED) pulser for testing the low-rate response of a photomultiplier tube (PMT) to scintillator-like pulses has been designed, developed, and implemented. This pulser is intended to simulate 80 ns full width at half maximum photon pulses over the dynamic range of the PMT, in order to precisely determine PMT linearity. This particular design has the advantage that, unlike many LED test rigs, it does not require the use of multiple calibrated LEDs, making it insensitive to LED gain drifts. Instead, a finite-difference measurement is made using two LEDs which need not be calibrated with respect to one another. These measurements give a better than 1% mapping of the response function, allowing for the testing and development of particularly linear PMT bases.