[en] Fast ignition (FI) of a conically guided DT assembly by a laser-accelerated deuteron beam is proposed. The uniformly pre-compressed fuel of 300 g cm^-3 is heated by the deuteron beam of a Maxwellian energy distribution with a temperature of 3 MeV. This scheme makes full use of the deposited energy of the alpha particles produced by the athermal nuclear reactions and can save about 4.5% ion-beam energy compared with the FI by fast proton or carbon ion beams. The ignition energy delivered by the external beam can be reduced appreciably.

[en] The principle of the internal target position monitor at the Nuclotron is described. It has been developed for use in experiments with detection of particles in the forward direction. The first results obtained using the target position monitor with a polarized deuteron beam at the Nuclotron are presented.

[en] A selection of dp-elastic scattering events at energies of 1.6 and 2.0 GeV by using scintillation counters has been performed. The procedure of the CH₂-C subtraction has been established. The dependence of the elastic events yield on the filter thickness has been investigated. This method can be used to develop the efficient high-energy deuteron beam potarimetry.

[en] A complex of detection equipment based on scintillation detectors for investigating dp elastic scattering at the internal target of the Nuclotron developed in the framework of the Deuteron Spin Structure (DSS) project is presented. The results of optimizing scintillation detectors and the results of test measurements of a deuteron beam of the Nuclotron are given.

[en] Deuteron beam has been successfully accelerated in the KEK PS up to the energy of 11.2 GeV (5.6 GeV/u), the limiting energy of the ring. The first physics experiment with deuteron beams was carried out in April of 1992 after this success. Helium beam acceleration is scheduled in April in 1994

[en] A short review of spin physics program at JINR is presented. The proposals on spin program at the NICA collider are discussed. The main purpose of this program is to study the nucleon spin structure and other phenomena with polarized proton and deuteron beams.

[en] The results of measurements and the handling procedure of data on the tensor polarization of the deuteron beam arising as the beam passes through matter obtained at the Nuclotron during the June 2008 run using an extracted unpolarized 5 GeV/ c deuteron beam are described. The effect observed is compared with calculations made in the framework of the Glauber multiple-scattering theory.

[en] A kinematically complete double-polarization measurement of the quasi-free np → {pp}_s π⁻ reaction near threshold has been performed using the ANKE spectrometer at COSY-Jülich. Here {pp}_s represents a two-proton system with an excitation energy less than 3 MeV. The transversely vector polarized deuteron beam and the internal polarized ANKE hydrogen target were used to determine the spin-correlation coefficients A_x,x and A_y,y. Events from the quasi-free np → dπ⁰ reaction were recorded simultaneously and used for both beam and target polarimetry. In addition, the product of the beam and target polarizations could be estimated from the A_y,y coefficient. The storage cell within the polarized target was the main source of background events. Dedicated runs, with no gas in the cell and with the cell filled with N₂ gas, were taken to study the backgrounds. The data analysis procedure and the initial results of the experiment are presented.

[en] The tensor polarization of the deuteron beam arising as deuterons pass through a carbon target was measured. The experiment was performed with an extracted unpolarized 5-GeV/ c deuteron beam of the Nuclotron. The effect observed is compared with the calculations made using the Glauber multiple scattering theory.

[en] Multi-species impact is of high relevance for fusion reactors, where, in addition to the hydrogen fuel, the He ash, impurity species (e.g., C and O), and in some cases injected elements are also present. Combined irradiation of graphite with relatively low-energy H⁺ (typically below 100 eV) and energetic (above 300 eV) hydrogenic and non-hydrogenic ions leads to an enhancement of the chemical erosion yield compared to the low-energy H⁺-only case. This is due to the additional energy deposition and associated lattice damage by the added energetic ions. Studies of combined species irradiation also have the potential to enhance our understanding of the mechanisms leading to erosion and hydrogen transport in graphite. Mixed isotope experiments with simultaneous H⁺-D⁺ irradiation of graphite led to the conclusion that thermalized H and D move and recombine on internal surfaces within the implantation zone. In contrast, during H⁺-D⁺ irradiation, methane molecules are formed at the end of range of the incident ions. Combined H⁺ and O⁺ irradiation of graphite leads to the formation of hydrocarbons, carbon oxides and water, with water being formed at the end of the O⁺ implant range