in this work the performance of a wavelength division multiple access (wdma) system with direct detection receiver is investigated. for this purpose, the probability of error in a wdma network with ook modulation considering crosstalk, isi, photo detector noise and thermal noise is calculated and the effect of each on system performance is investigated. the system performance in presence of pin...

The MuLan experiment has been designed to make a precision measurement of the muon lifetime to one part per million. The experiment uses 340 scintillation detectors to detect the positron produced in the muon's decay. Members of the James Madison University Physics department have been responsible for the design and implementation of a calibration system for the MuLan detector. The calibration ...

Introduction: In nuclear medicine, the use of a pixelated semiconductor detector such as CZT is an of growing interest for introducing new devices. Especially, the spatial resolution can be improved by using a pixelated parallel-hole collimator with equal holes and pixel sizes based on the pixelated detector. The purpose of this study was to compare the effect of pixelated and ...