[en] In this work we present a newly developed TDC (Time-to-Digital Converter) board in the VME-32 standard. The 32-channel TDC board is based on a single FPGA Altera Cyclone III chip. The main parameters of the TDC are as follows: a resolution of 1.19 ns, a dead time of 4.76 ns, and a maximal time interval of 19 504 ns.

[en] In 2017, the luminosity at the VEPP-2000 collider at the Budker Institute of Nuclear Physics SB RAS, Novosibirsk, was increased. In this regard, it was decided to upgrade the trigger system of the CMD-3 detector. For this, the development of a device called the Final Decision Block was started. The task of this unit is to generate the final decision on recording the current event in the detector based on the data received from the Charged and Neutral triggers. In this paper, we present the designed block and tests carried out with it, as well as its integration in the Data Acquisition System of the CMD-3 detector. The test results are presented both at the test bench and directly as a part of the Data Acquisition System of the detector.

[en] The 1 m long and 1 m outer diameter chamber consists of 42 layers. The chamber is based on a jet type cells with drift distance of 30 mm. The measurements of the spatial and dE/dx resolution were performed with DME gas with the cosmic particles. The resolution averaged over the drift distance is equal to 110 μm while dE/dx resolution is 8.2%

[en] In this paper we investigated Cherenkov radiation component influence on the time of charged particle detection in LYSO(Ce) crystals. Description of the experiment setup and Monte Carlo simulation scheme are given. The scintillation and Cherenkov radiation processes in LYSO(Ce) crystal were simulated and studied experimentally with electron beam at Budker Institute of Nuclear Physics beam test facilities. The results of the measurements and simulation are presented. The effect of particle detection time shift due to Cherenkov radiation was obtained. It amounts of several tens of picoseconds for LYSO(Ce) crystal bar (it has dimensions of $3\times <!--\; ??\; -->4\times <!--\; ??\; -->50$ mm${}^3$). Beam test results are in good agreement with calculations.

[en] The multiwire proportional chamber (MWPC), operating in a direct photon-counting mode, is used as the basis of 1D and 2D X-ray detectors. The 1D detector used in our scanning radiographic systems is serially produced. Its counting rate is about 200 MHz, its spatial resolution 0.6 mm, the number of channels is 640. The 2D detector, designed for diffraction structural researches on synchrotron radiation at the storage ring VEPP-3, is being commissioned now. Its characteristics are: 5 MHz, 1.5 mm, 65536 channels. The second 1D detector (10 MHz, 75 μm, 3300 channels, σ=150 μm) is made for the same purposes. A third 1D detector with a registration angle of 60 (500 MHz, 0.6 mm, 1900 channels) is under development. All the detectors operate in a frame-by-frame mode and are free (except 2D) of parallax error. (orig.)

[en] An upgrade of the CMD-3 detector for the VEPP-2000 e⁺e⁻ collider is now in progress at the Budker Institute of Nuclear Physics (BINP) in Novosibirsk. CMD-3 is equipped with a TOMA (Time Oriented Measurement and Acquire) DAQ system specially developed for the experiments at low energy e⁺e⁻ colliders. The CMD-3 TOMA DAQ has a high grade of unification, which decreases the cost of ownership and production time of the whole system. Unification also makes it possible to reduce the variety, the price and the production time of the DAQ modules. Special attention is paid to the synchronization of the data transmission and on-line checks of electronics. The communication between DAQ elements is realized via a custom developed interface named C-Link. Several types of DAQ TOMA modules are briefly described

[en] The VEPP-2000 e ⁺ e ⁻ collider has been operated in the Budker Institute of Nuclear Physics since 2010. Experiments are carried out with two detectors CMD-3 and SND. The calorimetry at the CMD-3 detector is based on three subsystems, two coaxial barrel calorimeters—Liquid Xenon calorimeter and crystal CsI calorimeter, and end cap calorimeter with BGO crystals. This paper describes the procedures of the energy calibration of the combined barrel calorimeter of the CMD-3 detector.

[en] The VEPP-2000 e"+e"− collider has been operated at Budker Institute of Nuclear Physics since 2010. The experiments are performed with two detectors CMD-3 and SND. The calorimetry at the CMD-3 detector is based on three subsystems, two coaxial barrel calorimeters—Liquid Xenon Calorimeter and crystal CsI calorimeter, and endcap calorimeter with BGO crystals. This paper describes the CsI calorimeter of the CMD-3 detector. The calorimeter design, its electronics and calibration procedures are discussed

[en] The excellent particle identification (PID) system is needed for the successful execution of the broad experimental program at future Super C-$\mathrm{\tau <!--\; ??\; -->}$ Factory (SCTF) in Novosibirsk. The main requirements for the PID system are the following: good $\mathrm{\pi <!--\; ??\; -->}$/K-separation in whole operational momentum range and good $\mathrm{\mu <!--\; ??\; -->}/\mathrm{\pi <!--\; ??\; -->}$-separation in the momentum range from 0.4 up to 1.2 GeV/$c$. The RICH detector based on focusing aerogel (FARICH) could provide good $\mathrm{\pi <!--\; ??\; -->}$/K-separation from 0.4 GeV/$c$ and $\mathrm{\mu <!--\; ??\; -->}/\mathrm{\pi <!--\; ??\; -->}$-separation in the momentum range from 0.4 up to 1.5 GeV/$c$. The method FARICH is described, beam test results are presented and the status of multilayer aerogel production is given.

[en] The 1 m long and 1 m outer diameter KEDR drift chamber consists of 42 layers. The chamber is based on a jet type cell. In addition to drift time measurements, pulse height measurements will provide particle separation by dE/dx. The measurements of the spatial resolution and the effects of the end plates on resolution and aging tests were performed using prototypes filled with DME gas. The resolution averaged over the drift distance has a value of 40 μm. The relative gain drop is equal to 45 %/(C/cm). (orig.)