The linear accelerator (linac) with a mass-to-charge ratio of A/Z = 8, an energy of 4 MeV/n, and a current of 10 mA is under develop at the National Research Center Kurchatov Institute. The linac consists of an accelerator with radio frequency quadrupole (RFQ) operating at a frequency of 40 MHz, and two accelerating structures with drift tubes DTL1 and DTL2 operating at frequencies of 80 and 160 MHz, respectively. It is assumed that the accelerating structure of DTL2 will consist of 28 five-gap quarter-wave resonators.

The project of a facility for studying the ionizing radiation effects from outer space is under development at Russian Federal Nuclear Center All-Russia Research Institute of Experimental Physics (RFNC-VNIIEF, Sarov). The National Research Center Kurchatov Institute (KCTEF) has developed a technical project and design documentation for a heavy ion linac. The linac provides the acceleration of the beams with the mass-to-charge ratio within the range of 4–8 in a pulsed mode up to energy of 4 MeV per nucleon with a current of 10 mA. The accelerator consists of a laser ion source, an RFQ section and two DTL sections operating at multiple frequencies. The world’s most powerful laser ion source can generate a Bi27+ ion beam with a current of at least 3 mA at a pulse duration of 5 μs. In the linac, at least 95

The linear accelerator (linac) with a mass-to-charge ratio of A/Z = 8, an energy of 4 MeV/n and a current of 10 mA is under develop at the National Research Center Kurchatov Institute. The linac consists of an accelerator with radio frequency quadrupole (RFQ) operating at a frequency of 40 MHz and two accelerating structures with drift tubes DTL1 and DTL2 operating at frequencies of 80 and 160 MHz, respectively. It is assumed that the electrodes of the RFQ accelerator will be with offset magnetic coupling windows. The total length of the RFQ accelerator will be approximately 11 m.

The key elements of the compact accelerator-driving neutron source (CANS) dedicated to academic research and industrial applications (DARIA) have been developed. A pulsed proton linear accelerator with an energy of 13 MeV, a current of 100 mA, a pulse length of 100 μs, and a repetition rate of 100 pulses/s is under development for the DARIA CANS. An improved version of the GISMO ion source has been developed to generate the beam. The parameters of the accelerator line consisting of the RF quadrupole (RFQ) linac and the drift tube linac (DTL) have been determined by numerical simulation. The parameters and model of a hybrid magnetic lens for beam focusing are presented. A Faraday cup for diagnosing a high-intensity beam has been manufactured and tested. The developed prototypes of the target assembly based on beryllium and mesitylene moderator have confirmed the correctness of the selected engineering solutions. The physical parameters of the neutron-guiding systems have been determined in terms of the maximum luminosity of the device at a good instrumental resolution.

The linear accelerator (linac) with a mass-to-charge ratio of A/Z = 8, an energy of 4 MeV/n and a current of 10 mA is under develop at the National Research Center Kurchatov Institute. The linac consists of an accelerator with radio frequency quadrupole (RFQ) operating at a frequency of 40 MHz, and two accelerating structures with drift tubes DTL1 and DTL2 operating at frequencies of 80 and 160 MHz, respectively. It is assumed that the accelerating structure of DTL1 will consist of 12 two-gap quarter-wave resonators.

The project of the complex for studying ionizing radiation exposure from outer space based on the synchrotron accelerator of protons and various types of ions up to 209Bi is being developed at the Russian Federal Nuclear Center - All-Russian Research Institute ofExperimental Physics (FSUE RFNC - VNIIEF). The accelerator includes two injection complexes (one of which is the source of protons and light ions, the second - heavy ions), the booster accelerator and the main synchrotron. The pulsed type heavy ions linac is being developed at the NRC “Kurchatov Institute” - KCTEF (Kurchatov Complex for Theoretical and Experimental Physics). The ions with mass-to-charge ratio 4÷8 with current of 10 mA will be accelerated up to 4 MeV/u. The linac is proposed, including the RFQ and two DTL sections operating at multiple frequencies. Each DTL section is modular and consists of individually phased H-type resonators (IH-DTLs). Quadrupole lenses located between the resonators for the beam focusing. This DTL structure ensures the accelerator compactness and allows section-by-section configuration and sequential commissioning. 6D beam matching between all sections of the linac is carried out. The results ofbeam dynamics simulation in linear accelerator are presented.

As part of the implementation of the Federal Scientific and Technical Program for the Development of Synchrotron and Neutron Research and Research Infrastructure for 2019–2027, a scientific and educational medical nuclear medicine center (SEMC NM). The task of constructing the SEMC NM also includes the construction of a proton beam therapy center, which should become the basis for long-term development of equipment and technologies for new generations of proton beam therapy, their implementation in practical healthcare by replicating in the constituent entities of the Russian Federation and friendly countries, as well as training personnel (medical physicists and clinicians). The article presents the results of preliminary design of the accelerator equipment for the created proton beam therapy complex, which is implemented on the basis of the proton synchrotron.

A linear resonant pulsed accelerator of heavy ions with an energy of 4 MeV/nucleon, an operating frequency of 162.5 MHz, and a current of up to 10 mA is being developed at the National Research Center “Kurchatov Institute” (the Kurchatov Complex of Theoretical and Experimental Physics (KCTEP)). The high-energy beam transport (HEBT) channel is designed for transporting a beam of accelerated ions with A/Z = 4–8 to the ion stripping target before their injection into the booster. The main channel elements and their parameters, which provide transversal beam focusing and minimize the momentum spread of particles, have been determined. Some results of dynamic calculations in the HEBT channel with the use of three-dimensional models for the spatial distribution of a magnetic quadrupole lens field and an electrical debuncher field are presented.

The design of the DARIA compact neutron source based on a linear resonant proton accelerator is aimed at creating a serial installation capable of providing the Russian scientific community with pulsed neutron beams with intensities comparable to those of research nuclear reactors. The absence of fissile material makes it possible to significantly reduce the radiation-safety requirements for such installations and, consequently, to place them at the site of leading scientific centers and universities that train specialists in the field of neutron physics. Under a grant from the Ministry of Science and Higher Education of the Russian Federation, key elements of the installation are being developed. The design and sequence of manufacturing for a full-scale model of an accelerator section with radio-frequency quadrupole focusing and a cavity with a drift-tube linac are presented.

Within the scope of the DARIA project (neutron source Dedicated to Academic Research and Industrial Application), a pulsed proton accelerator is being developed at the National Research Center “Kurchatov Institute” (Kurchatov Complex for Theoretical and Experimental Physics). The accelerator features an operating frequency of 162.5 MHz, a current of 100 mA, and an energy of 13 MeV. The linac consists of two sections, namely a section with a radio-frequency quadrupole (RFQ), which provides focusing, bunching, and accelerating beam, and a section with a drift tube linac (DTL). This article is dedicated to the development of the DTL section, which is subject to several key requirements. To fulfill these requirements, an accelerating structure comprising a chain of multi-gap cavities, capable of producing high-frequency fields, is selected. The optimal number of gaps in the cavities is determined based on an assessment of the section’s requirements. Additionally, the choice of the focusing system and focusing elements is carefully considered. Various configurations of focusing periods are analyzed to arrive at a suitable option for the section. Furthermore, the article presents the results from simulations of beam dynamics, including the study of Coulomb forces on particle dynamics in the DTL section. The growth of the emittance in the DTL section is analyzed, and the capabilities of the section for a wide range of input current and input beam emittance are examined.

The project DARIA (neutron source dedicated to applied research and industrial applications) directed to the development of compact neutron generators for universities, scientific centers and industry. In framework of the DARIA project, the 3 MeV, 162.5 MHz and 100mA pulse proton Radio Frequency Quadrupole (RFQ) is under development at National Research Centre "Kurchatov Institute". In this article the main aspects of the beam dynamics design of this RFQ are described, namely the choice of RFQ parameters, the optimization of the transport and the transmission. Results of beam dynamic simulation in RFQ are presented.

Project of the proton accelerator-driven compact neutron source DARIA (Dedicated for Academic Research and Industrial Application) is developed in order to replace small and middle flux neutron sources based on the nuclear reactors. DARIA has a uniquely high ratio of efficiency to cost due to deep optimization of each key element of the system (proton injector and accelerator, target, neutron moderator and neutron instruments. A unique ECR ion source, developed at the IAP RAS, would be used as a proton beam injector. In such device the plasma is heated by the powerful 28 GHz gyrotron radiation, providing a record level of volumetric energy input for such systems over 100 W/cm(3). The high plasma density and the optimal electron temperature provide proton beams formation with a current of up to several hundred mA and an emittance that meets the requirements of modern accelerators. The paper discusses the advantages of using such an ion source, its scheme and design performance.

One of the most prospective electrical and optical nonvolatile memory types is the phase change memory based on chalcogenide materials, particularly Ge2Sb2Te5. Introduction of dopants is an effective method for the purposeful change of Ge2Sb2Te5 thin film properties. In this work, we used the ion implantation method for the introduction of In and Sn into Ge2Sb2Te5 thin films by a Multipurpose Test Bench (MTB) at the National Research Center “Kurchatov Institute”-Institute for Theoretical and Experimental Physics. For Sn and In ion implantation into Ge2Sb2Te5, the following MTB elements were used: a vacuum arc ion source, an electrostatic focusing system, and a system for current and beam profile measurements. The MTB parameters for Sn and In ion implantation and its effect on the material properties are presented. Implanted Ge2Sb2Te5 thin films were irradiated by femtosecond laser pulses. It was shown that the ion implantation resulted in a decrease in the threshold laser fluence necessary for crystallization compared to the undoped Ge2Sb2Te5.

Radiation damage is the limiting factor in the choice of structural materials for advanced fission and fusion reactors. Neutron irradiation of materials is a slow and cost intensive process often extending over several years. Heavy ion irradiation is the only viable means to conduct accelerated testing to assess irradiated microstructures at high dpa levels. In the NRC "Kurchatov Institute" - ITEP the specimens of perspective steels and alloys are irradiated at the RFQ Heavy Ion Prototype (HIPr) by a beam of accelerated heavy ions (Fe, Ti, V,...) up to dose 1017 ions/cm(2). During irradiation the investigated specimens can be heated up to 700 degrees C. We have studied the heavy ion distribution on the target. The results of beam profiles measurements for different irradiation modes are presented. To improve the beam control a device was developed and produced. This device is based on the Arduino platform and software for analysing the data received in the streaming mode. The device allows to control all BPM signals together and takes account of these signals for the fluence calculation. Heavy ion irradiated specimens can be analyse with transmission electron microscopy, atom probe tomography and nanoindentation to measure mechanical properties of irradiated surface layers. Results of TEM analysis of Eurofer97 steel irradiated at 300 degrees C to 10(16) ions/cm(2) are demonstrated.

Alloys along the quasi-binary line between Sb2Te3 and GeTe with compositions (GeTe)m(Sb2Te3)n, in particular Ge2Sb2Te5, have been intensely studied and are used in the state-of-the-art PCM devices. However, properties of this thin film materials are not optimal and should be improved. In this work, we investigated the effect of tin ion implantation on the properties of amorphous Ge2Sb2Te5 thin films. The Sn ion implantation was done on Multipurpose Test Bench (MTB) [1] at NRC "Kurchatov Institute"-ITEP. The MTB consists of MEVVA type ion source, electrostatic focusing system, the system of current and beam profile measurements. The charge spectrum of the Sn beam was measured by the time-of-flight method, the beam profile as well as beam current were also measured. The beam`s accelerating voltage was calculated by SRIM code in order to implant ions on the required film`s depth. Tin ions were implanted into GST films at 40 kV accelerating voltage. Effect of Sn ion implantation (1 at. %) on the electrical properties of magnetron GST thin films was investigated.

A new NICA heavy-ion collider is now under construction at JINR. At the same time, the Nuclotron facility is being modernized. A joint team from the JINR, MEPhI, and ITEP are now reconstructing a proton and light-ion injection system. New results of the RFQ linac resonator testing and measurements and RF power load are discussed in this article.

The generation of matter in an extreme state with precisely measurable parameters is of great interest for contemporary physics. One way of obtaining such a state is to irradiate the end of a hollow cylindrical shell at the center of which a test material is kept at a temperature of several Kelvin by an annular beam of high-energy heavy ions. Under the action of the beam, the shell starts explosively expanding both outwards and inwards, compressing the material to an extremely high pressure without subjecting it to direct heating. A method of producing a hollow cylindrical beam of high-energy heavy ions using a resonance rf deflector is described. The deflection of the beam in two transverse directions by means of an rf electric field allows it to rotate about the longitudinal axis and irradiate an annular domain on the end face of the target.