The XXIII International Scientific Conference of Young Scientists and Specialists (AYSS-2019)

Session

Particle accelerators and nuclear reactors

15 Apr 2019, 15:00

LIT, JINR

Conveners

Particle accelerators and nuclear reactors: Part 1

• Mikhail Nozdrin (LHEP)
• Mikhail Shandov (Joint Institute for Nuclear Research, Veksler and Baldin Laboratory of High Energy Physics)

Particle accelerators and nuclear reactors: Part 2

• Mikhail Nozdrin (LHEP)
• Mikhail Shandov (Joint Institute for Nuclear Research, Veksler and Baldin Laboratory of High Energy Physics)

392. CRYOGENIC TARGETS OF THE LIGHTEST GASES (HYDROGEN, DEUTERIUM AND HELIUM-4) WITH GM CRYOCOOLER FOR EXPERIMENTS OF HIGH ENERGY PHYSICS

Mr Дмитрий Климанский (НИКО, ЛФВЭ, ОИЯИ)

15/04/2019, 15:00

Particle Accelerators and Nuclear Reactors

Oral

Researches of collision processes of elementary nuclei on the extracted beams of the NICA accelerator complex by the BM@N physics installation need cryogenic targets with unique ratios between the amounts of working substance (liquid hydrogen, deuterium or helium) and the mass of the target's housing, which may have the interaction with an ion beam, result the secondary particles, and initiate...

315. Dilution cryostats for experiments with the frozen spin polarized target at particle accelerators

Mr Anton Dolzhikov (JINR)

15/04/2019, 15:15

Particle Accelerators and Nuclear Reactors

Oral

The description of design and recent results of the horizontal cryostat for new Bonn frozen spin polarized target developing for the spin physics experiments with tagged photons from Bonn electron accelerator “ELSA” are given. In addition, overview of frozen spin polarized targets cooled by ³He/⁴He dilution refrigerators developed at the DLNP JINR since 1976 for different accelerators is given.

350. Tracking Simulation of the Bunched Beam Stochastic Cooling

Ivan Gorelyshev (VBLHEP JINR)

15/04/2019, 15:30

Particle Accelerators and Nuclear Reactors

Oral

Mapping equation for the bunched beam stochastic cooling is formulated. For the NICA project parameters the obtained result is compared with theoretical description. According to the results the preferrable stochastic cooling method for the NICA collider is clarified.

363. Particle dynamics in an accelerator with a longitudinal magnetic field.

Sergey Melnikov (JINR)

15/04/2019, 15:45

Particle Accelerators and Nuclear Reactors

Oral

The goal to research is to analyse of the influence of magnetic field perturbations on the dynamics of charged particles in a storage ring with a longitudinal magnetic field LEPTA. The Low Energy Particle Toroidal Accumulator, created in the VP Dzhelepov Laboratory of Nuclear Problems, JINR (Dubna) is designed for generating a directed orthopositronium flux, which is formed as a result of...

420. Modeling and analysis nica accelerator complex superconducting magnets magnetic fields

Mr Nikita Khromov (JINR)

15/04/2019, 16:00

Particle Accelerators and Nuclear Reactors

Oral

NICA collider magetic system consist of dipole, quadropole and corrector twin-aperture SC magnets, IN this report design of corrector magnet is presented.

341. Replacing the lead coolant with Pb-Mg eutectic and the effect of these substitutions on the neutron-physical, thermophysical characteristics of fast reactors

Mr Almas Yskakov (Frank Laboratory of Neutron Physics)

15/04/2019, 16:15

Particle Accelerators and Nuclear Reactors

Oral

The technical characteristics and safety conditions of the fast reactor are limited by the properties of the metal-free coolant. The lead coolant is chemically neutral, melts and boils easily at high temperatures, but the corrosiveness of lead requires great technological effort. The cause of corrosion activity is the charge polarity of lead, lead is electronegative and is a strong oxidizing...

317. The new Light-ion Linac for the NICA Collider

Mr Andrei Martynov (JINR)

15/04/2019, 17:00

Particle Accelerators and Nuclear Reactors

Oral

Upgrade of NICA injection complex requires the replacement of obsolescent LU-20 DTL linac for the new ion linear accelerator. The R&D plan includes the development of 7 AMeV-linac with future extension by additional normal-conductive RF cavities with output energy up to 13 AMeV and SC cavities up to 30-50 AMeV. The linac will provide a beam of polarised protons and light ions with a mass to...

405. NICA booster control system: thermometry

Mr Georgy Sedykh (JINR)

15/04/2019, 17:15

Particle Accelerators and Nuclear Reactors

Oral

NICA is a new accelerator complex being constructed on the JINR aimed to provide collider experiments with heavy ions. It consists of Electron String Ion Source, 6.2 Mev/u linac, 600 Mev/u booster synchrotron, upgraded Nuclotron and ion collider. The superconducting booster synchrotron is being assembled presently. The report describes a system, developed in JINR, to perform precise...

411. The beam transfer lines for electronics and radiobiology applications of the NICA project.

Mr Georgy Filatov (JINR)

15/04/2019, 17:30

Particle Accelerators and Nuclear Reactors

Oral

There are several new studies in applied fields are going to be provided in the framework of the NICA project in the nearest future. These studies are linked to radiobiology and electronics applications. For these aims, three new experimental stations are going to be built. Special cosmic-likened properties of the beams are required. They can be provided by HILAC, Booster and Nuclotron...

413. Development of beam diagnostic systems for applied research stations at VBLHEP JINR

Mr Alexey Slivin (JINR)

15/04/2019, 17:45

Particle Accelerators and Nuclear Reactors

Oral

Within the framework of NICA project an Innovation block based on three applied research stations is being constructed. The first station includes the research and testing of perspective products of semiconductor microcircuits with package for radiation resistance of heavy charged particles such as ions up to the Au with the energy range of 150-500 MeV/nucleon covering LET range 30-60...

440. Optimization of the operating mode of the NICA collider for experiments at SPD: studying the effect of impedance on the dynamics of an intense proton beam

Mrs Margarita Korobitsina (JINR)

15/04/2019, 18:00

Particle Accelerators and Nuclear Reactors

Oral

The studies of the nucleon spin structure in the collisions of polarized proton beams is the first priority task for the scientific program of The Spin Physics Detector (SPD) project at the NICA facility. Effective carrying out of these studies is possible with the luminosity of p-p collisions = 1*(10)^32 (сm)^(-2) с^(-1) at the energy E_cm = 27 GeV. This is possible with the accumulation of...

491. HILAC-Booster transport channel: beam diagnostics and the magnetic elements power supply

Mr Dmitriy Ponkin (JINR)

15/04/2019, 18:15

Particle Accelerators and Nuclear Reactors

Oral

The new LHEP JINR linear accelerator HILAC is the main element of the NICA heavy ion injector. The HILAC-Booster beam transport channel contains dipole magnets, quadrupole lenses, a debuncher, a set of steerers and beam diagnostics elements. The magnetic elements power supply, the beam profile measurement system and its software are described.