Conveners
Design and development of charged particle accelerators and ionizing radiation sources
- Vasiliy Shvedunov (SINP MSU)
Design and development of charged particle accelerators and ionizing radiation sources
- Vasiliy Shvedunov (SINP MSU)
Design and development of charged particle accelerators and ionizing radiation sources
- Vadim Khankin (Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Russia)
Design and development of charged particle accelerators and ionizing radiation sources
- Vadim Khankin (Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Russia)
The perspectives and the program of experimental research in the field of nuclear physics on the projected source of monoenergetic gamma-quanta based on the Compton backscattering effect of laser radiation from a linear electron accelerator with an energy of 500 MeV are discussed. It is planned to create a facility with a high-intensity beam of monoenergetic gamma-quanta with energies from a...
Laser-electron X-ray source based on inverse Compton (Thomson) scattering is a novel type of high spectral brightness X-ray sources. The state-of-the-art design of electron accelerators and high power lasers had paved the way for a construction of these compact facilities that are able to produce a nearly synchrotron-quality X-ray radiation for material and life science studies and many other...
In present time there is a tendency to avoid nuclear reactors in favor of electron accelerators as the main instrument for the production of medical radioisotopes. The report is devoted to high-power industrial accelerators developed by different manufacturers, including Laboratory of Electron Accelerators MSU Ltd. The main requirements for an electron beam are considered based on the existing...
The DC280 is the high current cyclotron with design beam intensities up to 10 pμA for ions with energy from 4 to 8 MeV/nucleon. It was developed and created at the FLNR JINR. The first was extracted from the cyclotron on January 17, 2019. Experiments on acceleration of 84Kr, 12C, 40Ar, 48Ca, 48Ti, 52Cr and 54Cr beams production were carried out. The following intensities of accelerated beam...
The paper vows to the studying the possibility of high‑power electron accelerators for neutron therapy and radioisotopes production. Computations are performed for both applications, and the results are normalized to the characteristics of the modern-day MEVEX accelerator (average electron current 4 mA at a monoenergetic electron beam 35 MeV).
The unifying problem for applications is the...
The linear electron accelerator LUE-200 was designed and built at the Joint Institute for Nuclear Research (Dubna) as a driver for a booster-type neutron source with a multiplying target - an active zone with an integral neutron yield of ⁓ 1014 s-1, which determines the energy and power of the accelerated particle beam. The accelerator was designed and put into operation in stages. In 2009 -...
The report presents the results of the development of linear electron accelerators with energy from up to 10 MeV, performed at the Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, as well as in Laboratory of Electron Accelerators MSU. Over the past year, more than 30 accelerators of six different types have been delivered to customers. Linear accelerators for mobile,...
SINP MSU develop normal conducting continuous-wave linear electron accelerators since 80s. Continuous-wave linacs compared to pulsed machines make it possible to obtain electron beams with more stable energy and lower energy spread, reduce detectors loading while maintaining the average intensity of events during an experiment. We present an overview of continuous-wave accelerators for both...
The technique and technology for the creation and formation of electronically controlled ion and plasma fluxes in the magnetic fields by grouping the flows with setting certain sequences of the self-following have been worked out to solve the problem of controlled nuclear fusion. The operation of the units is based on the physical principles of plasma and ion flows compaction with a discrete...
Physical experiments to study collinear cluster tri-partition are planned on the cyclic electron accelerator MT-25. This is a new type of multibody decay that requires, due to the small cross-section of the reaction, work at the maximum intensity of the electron beam for research.
The purpose of this work is to study the radiation fields that occur at the maximum intensity of the electron...
One of the main processes in a proton synchrotron is capture of particles during injection. For successful capture, it is necessary to measure the magnetic field in the orbit with high accuracy. Widely used Hall sensors have many disadvantages: not very high precision and long-term stability, low radiation resistance, angular dependence and etc. All these cause difficulties in setting of the...
Simple analytical formulas for operational evaluation of the yield and angular distribution of neutrons, which are necessary for calculating the biological protection of heavy ion accelerators with energies from 1 to 6 MeV/nucleon, are presented. Activities on creation of the new multipurpose isochronous cyclotron DC-140 [1] at the FLNR, JINR became the reason for the development of a method...
A classical method of the charge particle microbeams formation is based on magnetic or electrostatic ion focusing with preliminary input beam collimation. An alternative method of the microbeams formation is using of the capillary. New systems of transformation, control and transfer of the charged particle beams can be developed on a basis of this effect, particularly for obtaining the micron...
The constant monitoring of the uniformity of the density distribution of the flux of the accelerated particles is required in various applied fields as such as the studies of biological objects and of radiation resistance of electronic devices. The ionization monitor has been developed at FLNR JINR in order to make the non-destructive detailed high precision measurement of the transverse...
The results of research of the origin of the spontaneous electron emission sources generation in multi-wire proportional chambers (MWPC) at LHCb experiment in Large Hadron Collider (LHC) [1] are presented. Formation of dotted carbon nanostructures on cathode copper foil with sp1, sp2 and sp3 hybridization of electron levels is shown up as a result of complex research by atomic-force microscopy...
To optimize the processes of nuclear fusion on the ion-plasma generator [1], a model was constructed that describes the dynamics of particle motion inside the fusion chamber. The synthesis chamber is a magneto-optical system of solenoids and quadrupole lenses, thereby performing the functions of confining and focusing ion flows. Using known formulas for the magnetic field of a...
The Super S-tau Factory project [1], carried out by the Institute of Nuclear Physics of the Siberian Branch of the Russian Academy of Sciences, makes the development of a 50-megawatt S-band klystron especially topical. The paper describes the algorithms for calculating and designing such a klystron, as well as the characteristics of the program created for this purpose. Comparisons of the...
Proton therapy unit and pulsed neutron source have air channels for beam formation. Intermediate energy nucleons are non-elastically scattered by air atoms (nitrogen, oxygen, argon, etc.) and creates short-lived radionuclides (life tame from 20 ms to 100 s) in spallation process. Gamma and beta radiation from the decay of radionuclides can be used to pulsed nucleon beam monitoring. An...
Proton therapy is one of the most developing forms of radiation therapy [1]. The release of most of the proton energy and, consequently, the maximum damage to biological tissues occurs in the immediate vicinity of the region where the proton beam stops. The range of protons in the patient's body must be predicted with submillimeter accuracy to maximize the physical benefits. In current...
