introduction: radiation imaging is one of the applicable methods in diagnostic medicine and nondestructive testing for industrial applications. in nondestructive 3d imaging, in addition to the radiation source, there is a requirement for a suitable detection system, data acquisition system, mechanical sections for moving objects, reconstruction algorithm and finally a computer for processing an...

This paper presents a monolithic optical detector, consisting of an integrated photodiode and a pre-amplifier in a standard 0.18μm CMOS technology. 3Gb/s data-rate was achieved at λ=850nm with an average optical power of 25 μW and BER10. This data-rate is over half an order of magnitude higher than that of current state-of-the-art optical detectors in standard CMOS. High speed operation is achi...

The properties as a neutron detector of a silicon photodiode of type Hamamatsu S3590-02 in conjunction with a multi-channel analyser Alphatron-3C were investigated in an Am-Be calibration field at the department of nuclear engineering at the University of Madrid. Since the photodiode is sensitive to charged particles, we covered it with two types of converters to enable its response to thermal ...

1 Preface All products are continuously being improved for better performance. Spectrometers have developed in many ways since the introduction of simple and moderately priced Spectrophotometers which were commercially available from the mid 1950’s. 1 Such improvements have enabled SCINCO to manufacture PDA type UV-Vis. Spectrophotometers. The scope and performance of conventional single channe...

With the recent advancement of gigabit fiber communication and the photonic distribution of microwave signals, there is a growing need to characterize the high-speed optical signals found in such systems. This task is typically accomplished with a high-speed photodetector followed by an instrument such as a sampling oscilloscope, a radio frequency (RF) spectrum analyzer, or a vector network ana...

We report a telecom-band single-photon detector for highspeed quantum key distribution systems. The single-photon detector is based on a sinusoidally gated InGaAs/InP avalanche photodiode. The gate repetition frequency of the single-photon detector reached 2 GHz. A quantum efficiency of 10.5 % at 1550 nm was obtained with a dark count probability per gate of 6.1×10−7 and an afterpulsing probabi...

The performance of the photon detector constructed for the search of T-violation in the decay K + → π 0 µ + ν is presented. The specific features of this detector consisting of 768 CsI(Tl) crystals with PIN photodiode readout for high precision measurement of T-odd correlations in decays of positive kaons are considered.