1. NSC KIPT
  2. IFTTMT
  3. Department of pure metals, physics of metals and technology of new materials
Ru En Ua

Scientific-researching laboratory of new technological developments

Application of measuring equipment with radiation detectors in NSC KIPT

Imitation research of radiation protective properties of materials using linac electrons ↑

The properties of different materials intended for radiation protection of space vehicles were investigated with the use of CdZnTe detectors.
Electron beam escape of the accelerator "ELIAS" together with installation for providing tests and detector of CdZnTe sized 10×10×5 mm3 working in continuous mode. Energy of electrons 2.5 MeV.
Dependence of electron beam total energy after attenuation in aluminum and samples from dispersion reinforced polymeric composite materials on material surface density, per one incident electron. [V.A. Belous et al.]
Energy of electrons (We) and gamma-quanta (Wγ) coming from an aluminium protective filter (per one incoming 2.5 MeV electron).
Total energy coming from an aluminium protective filter depending on its surface density (per one incident electron).

Imitation research of radiation protective properties of materials using proton beams ↑

For investigation of radiation-protective properties different materials were irradiated with protons. A beam of protons was produced at accelerator "ESU-2" in the nuclear reaction D(3He,p)4He. For He ions energy of 3Не=0.7 MeV the energy of protons was 13 MeV. [I.E.Kopanets et al.]
Spectra of 13 MeV protons (black), obtained in reaction at deuterium, and of 5 MeV alpha-particle source (red).

Research of absorbing ability of materials for attenuation of γ-radiation from reference OSGI-sources ↑

Instrumentation was developed, which key feature was the fixation of the relative unambiguous geometric position of its elements: of an irradiation source, of a sample, and of a detector of gamma-radiation. The device allows measuring the absorbing ability of samples with different thickness using reference gamma-ray sources from nuclides 241Am, 137Cs, 60Co, 133Ba, 152Eu.

CdZnTe detector pulse-height spectrum.

Research of protective performances of various composite material under electron irradiation ↑

A technique of imitative tests of metal and composite materials for determination of their protective properties under β-radiation from 90Sr+90Y source was developed.

The technique, besides the prize in time, is simple and inexpensive, compared to experiments in space or at accelerator.

Spectra of different β-sources.
Dependence of the electron beam attenuation on the material surface density normalized for aluminum attenuation. [V.A. Bilous et al.]
Spectrum of 90Sr + 90Y source (channel value 100 eV).

Research of spatial and energy distributions of high energy Bremsstrahlung with CdZnTe detectors ↑

Bar of miniature CdZnTe detectors (1×1×1 mm3) used for the coordinate analysis of surface activity of irradiated metal foils with the purpose of restoring a structure of an electron beam at accelerators KUT-20 and LU-40.
The axis display the coordinates of the photonuclear converter in mm. The color scales the gamma-ray activity of the foil in pulse/s. [S.P. Karasev et al.]

Registration of intensive gamma and electron radiation with CVD diamond detectors at linac LU-10↑

Scheme of electron-beam registration at the accelerator LU-10. [L.N. Davydov et al.]
Dependence of the detector signal amplitude on the displacement voltage.
The diamond detector signal at a displacement voltage of 80 V.
Signals from the diamond detector (channel 1) and Faraday cup (channel 2); Ud = 80 V.

Coordinate-sensitive diamond detector ↑

A multichannel strip diamond detector of electron- and gamma-radiation was developed for a precision measurement of the electron beam profile at the escape of accelerator. The intrastrip resistance and uniformity of electrophysical and radiation performances of the detector were investigated.

Bulk and surface leakage currents and peak height spectra are measured for different ways of connection to a recording equipment (single strip, a group of strips). [I.N.Shlyakhov et al.]

Bulk and surface leakage currents.
Count rate at an individual strip.
Pulse-height spectrum of the coordinate-sensitive detector taken from the contacts on the opposite sides of the film and on one and the same side.
Leakage currents between neighbour strips at U = 200 V.