Yu. A. Volkov

Testing a 32-channel integrated circuit for recording signals of silicon detectors

A 32-channel integrated microcircuit for microstrip silicon detectors of the “Nuklon” project for studying ionizing radiation in space conditions is tested. The microcircuit allows one to record signals of relativistic particles and nuclei with a charge from Z = 1 up to Z > 50 from silicon detectors. A structural diagram of the microcircuit and its main experimental characteristics are given. The power consumption does not exceed 1.5 mW/channel, and the dynamic range of recorded signals is not smaller than 100 pC.

An integrated circuit for reading out signals of silicon detectors

An integrated circuit (IC) for recording signals and studying characteristics of silicon detectors is designed and experimentally checked. The basic purpose of the IC is to use it in test setups with sources of ionizing radiation and on accelerators for studying silicon detectors of a new geometry (layout). The IC allows evaluation of the operation of the “silicon detector-readout electronics” system for relativistic particles and nuclei with a charge from Z = 1 to Z > 50. The results of designing the IC and its experimental characteristics are given.

A multichannel charge-sensitive amplifier for reading out the signals of double-sided silicon detectors of the tracking system for the CBM project

An eight-channel charge-sensitive amplifier chip created by the 0.18 μm CMOS process is intended for reading out the signals of double-sided silicon detectors of the tracking system for the CBM project of the new FAIR accelerator facility (GSI, Darmstadt, Germany). A dynamic range of ≥5 pC is attained for both polarities of the input signal, the power consumption of one channel does not exceed 1.3 mW, and the noise response of the amplifier is characterized as 1024ē + 24ē /pF (the rms deviation). Results of designing the microcircuit and its experimental characteristics are given.

Basic parameters of front-end microelectronic units of detector electronics

Results of the analysis of literature sources on development of microelectronic signal acquisition and processing units for ionizing radiation detectors in large-scale physical experiments are given. The basic parameters of these units, such as the channel number, power consumption per channel, conversion coefficient and noise level are summarized in the generalizing table. Conclusions on the performed analysis are made and trends in the design and implementation of the considered units manufactured as applications specific integrated circuits are noted.

Development of an opto-electronic channel for scintillation fiber detectors

The characteristics of an opto-electronic channel (for analog signal transmission) and its separate units: transmitting unit, based on a semiconductor laser, and a photoreceiving unit, containing a high-speed photodiode and two microwave gain stages are presented. The total rise time of the channel does not exceed 120 ps. The characteristics of an 8-channel circuit, processing the signals of radiation detectors, based on solid-state electron multipliers, are also adduced.

Multichannel printed circuit units for signal processing in nuclear experimental equipment

Abstract Several versions of SMT printed circuit units (PCUs), intended to pick up and process preliminary signals of high-impedance sources, such as wire chambers, photodiodes, photoelectron multipliers and so on, are considered. The figures in this paper particularly present 8-channel units measuring 110×30 mm 2 and 16-channel ones measuring 90×40 mm 2 . Each channel is a series connection of a preamplifier, shaper and comparator. The basic characteristics of these units are presented. Also, the units of a constant fraction discriminator and a high-speed splitter are considered.