Dmitry Varentsov

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This paper presents a preliminary report on a recent beamtime experiment on investigation of heavy-ion-beam generated high-energy-density (HED) matter. The experiment has been performed at the HHT experimental area of GSI on 11–17.12.2003. Goals of the experiment. Main goals of this experiment were commissioning of a new multi-channel pyro-meter for(More)
For future experiments on investigation of high-energy-density (HED) matter at GSI where an intense heavy ion beam and a petawatt laser beam from PHELIX will be used simultaneously, a new vacuum target chamber is required. Due to dimensions of the laser guiding and focus-ing optics, the new chamber has to be considerably larger than the presently installed(More)
The plasma-lens used at the HHT cave has been demonstrated to be a unique tool for shaping high energy ion beams into hollow beam spots [1] and achieving focal diameters, that are not accessible with regular magnets. However, electric currents on the order of 400kA within 9µs are necessary to achieve 10cm focal length. These currents, and the preionization(More)
During the last beam time in December 2003, a record high intensity of 4 × 10 9 particles in a bunched uranium beam has been achieved. It is expected that in the near future the beam intensity will increase to about 10 10 uranium particles that will enable us to carry out equation-of-state (EOS) studies in regimes that previously have not been accessed, in(More)
The charged particle community is looking for techniques exploiting proton interactions instead of X-ray absorption for creating images of human tissue. Due to multiple Coulomb scattering inside the measured object it has shown to be highly non-trivial to achieve sufficient spatial resolution. We present imaging of biological tissue with a proton(More)
Heavy ion beam-target interaction experiments which investigate the target density effect in the ion stopping process [1] require precise information about target parameters in the interaction region. The ion beam deposits its energy by excitation and ionization of the stopping media. This leads to its heating and expansion. The gas-target density varies(More)
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