Repetitive nanosecond electron accelerators type URT-1 for radiation technology

Sokovnin, S. Yu.; Balezin, M. E.

doi:10.1016/j.radphyschem.2017.08.023

Cited by 30 publications

(9 citation statements)

References 10 publications

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“…Chemical analysis of the sample revealed that the content of manganese is 0.5 wt.% (0.73 at.%). Electron irradiation was carried out using a URT-1M nanosecond electron accelerator [7]. The accelerating voltage was 800 kV, and the pulse duration was approximately 90 ns, the cross section of the electron beam was 5 × 40 cm.…”

Section: Methodsmentioning

confidence: 99%

Magnetic Properties and Structure of TiO2-Mn (0.73%) Nanopowders: the Effects of Electron Irradiation and Vacuum Annealing

Uymin¹,

Minin²,

Yermakov³

et al. 2019

LOM

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Nanopowder TiO 2-0.73 % Mn was synthesized by the sol-gel method. Thermal treatment of the samples was carried out in vacuum at a temperature of 500°C. Magnetic properties were studied in the temperature range from 2 to 850 K. The effects of electron irradiation and vacuum annealing on the EPR spectra and magnetic properties of TiO 2-Mn powder are discussed. It was established that a part of manganese ions in the anatase crystal lattice interacts antiferromagnetically, which causes a decrease in magnetization as compared to the result of the calculation for noninteracting ions. Vacuum annealing leads to the formation of oxygen vacancies and, at the same time, to a noticeable increase in the ferromagnetic contribution to magnetization, especially, after preliminary electron irradiation. We assume that the ferromagnetic contribution to the magnetization appears either due to incomplete compensation of antiferromagnetically directed moments of manganese ions, or due to positive exchange interactions of Mn ions via defects in the TiO 2 lattice. It is shown that the temperature of magnetic disordering in samples with a spontaneous magnetic moment exceeds 600°C.

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Section: Methodsmentioning

confidence: 99%

Magnetic Properties and Structure of TiO2-Mn (0.73%) Nanopowders: the Effects of Electron Irradiation and Vacuum Annealing

Uymin¹,

Minin²,

Yermakov³

et al. 2019

LOM

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“…The samples were irradiated by a nanosecond relativistic electron beam on a pulsed-periodic accelerator URT-1M [12]. The absorbed doses on the surface of the samples were 31.5 and 63 MGy.…”

Section: Managing the Properties Of Np By Irradiation With Relativistic Electronsmentioning

confidence: 99%

METHODS FOR MANAGING TEXTURAL PROPERTIES OF NANOPOWDERS TO CREATE A DRUG DELIVERY SYSTEM BASED ON SiO ₂ , SiO ₂ -MnO ₂

Zlygosteva¹,

Sokovnin²,

Il’ves³

2020

RAP 2019 Conference Proceedings

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The physical and chemical properties of nanomaterials depend not only on the nature of the substance, but also on the size and shape of the particles, as well as the size and shape of the pores. In this paper, the methods for managing the textural properties of SiO2, SiO2-MnO2 nanopowders, produced by pulsed electron beam evaporation in vacuum, are investigated. The researched methods include doping at the stage of preparation and ultrasonic treatment of aqueous nanopowder suspensions. In addition, the radiation of CaF2 nanopowders by relativistic electrons was considered as a potential method for managing properties.

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“…Accelerators such as URT [9] are used for various applications: including for SRS [10]. The main disadvantage of such accelerators is that the generation circuit contains an SOS switch, which on the one hand leads to an increase in the output voltage, but reduces the efficiency of transmitting energy to the electron beam due to the fact that the SOS switch is located parallel to the load.…”

Section: Introductionmentioning

confidence: 99%

Study of URT-1M accelerator in submicrosecond operation

Balezin¹,

Sokovnin²,

Герасимов³

2022

8th International Congress on Energy Fluxes and Radiation Effects

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The purpose of this work was to investigate the operation of the URT-1M accelerator with a power system without SOS switch. The approaches used in the high-voltage pulse generation system of this accelerator allow generating a pulse with an amplitude of up to 500 kV, a duration of ~450 ns and a supply repetition rate up to 50 pps during discharge of the second circuit capacitor. It was found that in this mode, an accelerator with a metal dielectric cathode works stably at a charging voltage of up to 35kV (accelerating ~350 kV). Further increase of voltage is limited by breakdown of feedthrough vacuum insulator with shielding of dielectric surface.

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Repetitive nanosecond electron accelerators type URT-1 for radiation technology

Cited by 30 publications

References 10 publications

Magnetic Properties and Structure of TiO2-Mn (0.73%) Nanopowders: the Effects of Electron Irradiation and Vacuum Annealing

Magnetic Properties and Structure of TiO2-Mn (0.73%) Nanopowders: the Effects of Electron Irradiation and Vacuum Annealing

METHODS FOR MANAGING TEXTURAL PROPERTIES OF NANOPOWDERS TO CREATE A DRUG DELIVERY SYSTEM BASED ON SiO ₂ , SiO ₂ -MnO ₂

Study of URT-1M accelerator in submicrosecond operation

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Repetitive nanosecond electron accelerators type URT-1 for radiation technology

Cited by 30 publications

References 10 publications

Magnetic Properties and Structure of TiO2-Mn (0.73%) Nanopowders: the Effects of Electron Irradiation and Vacuum Annealing

Magnetic Properties and Structure of TiO2-Mn (0.73%) Nanopowders: the Effects of Electron Irradiation and Vacuum Annealing

METHODS FOR MANAGING TEXTURAL PROPERTIES OF NANOPOWDERS TO CREATE A DRUG DELIVERY SYSTEM BASED ON SiO 2 , SiO 2 -MnO 2

Study of URT-1M accelerator in submicrosecond operation

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METHODS FOR MANAGING TEXTURAL PROPERTIES OF NANOPOWDERS TO CREATE A DRUG DELIVERY SYSTEM BASED ON SiO ₂ , SiO ₂ -MnO ₂