1.2 GeV electron radiation spectra in thick tungsten single crystals and total radiation losses in tungsten, germanium and silicon single crystals

The experimental investigation of radiation energy losses of ultra relativistic electrons in aligned crystals of various atomic number are of great interest for several reasonye

Photonuclear reactions cross-sections at energies up to 100 MeV for different experimental setups

In experiments on the electron linac LUE-40 of RDC "Accelerator" NSC KIPT, the flux-averaged cross-sections $\langle{\sigma(E_{\rm{\gamma max}})}\rangle_{\rm{exp}}$ of photonuclear reactions ${^{100}\rm{Mo}}(\gamma,n)^{99}\rm{Mo}$, ${^{27}\rm{Al}}(\gamma,x)^{24}\rm{Na}$, ${^{93}\rm{Nb}}(\gamma,n)^{92m}\rm{Nb}$, ${^{93}\rm{Nb}}(\gamma,3n)^{90}\rm{Nb}$, and ${^{181}\rm{Ta}}(\gamma,n)^{180g}\rm{Ta}$ were measured using the $\gamma$-activation technique. The theoretical flux-average cross-sections $\langle{\sigma(E_{\rm{\gamma max}})}\rangle_{\rm{th}}$ were computed using the partial cross-section $\sigma(E)$ values from the TALYS1.9-1.95 codes and bremsstrahlung $\gamma$-flux calculated using GEANT4.9.2. Two different experimental setups were used in the experiments: an aluminum electron absorber and a deflecting magnet to clean the bremsstrahlung $\gamma$-flux from electrons. A comparison of the flux-average cross-sections measured for two experimental setups was performed. The possibility of using the reactions ${^{100}\rm{Mo}}(\gamma,n)^{99}\rm{Mo}$, ${^{27}\rm{Al}}(\gamma,x)^{24}\rm{Na}$, ${^{93}\rm{Nb}}(\gamma,n)^{92m}\rm{Nb}$, ${^{93}\rm{Nb}}(\gamma,3n)^{90}\rm{Nb}$, and ${^{181}\rm{Ta}}(\gamma,n)^{180g}\rm{Ta}$ as monitors of the bremsstrahlung $\gamma$-flux for the energy range 30-100 MeV was investigated.Comment: 8 pages, 6 figures, 1 tabl

1.2 GeV electron radiation spectra in thick tungsten single crystals and total radiation losses in tungsten, germanium and silicon single crystals

yesThe experimental investigation of radiation energy losses of ultra relativistic electrons in aligned crystals of various atomic number are of great interest for several reaso

Orientation effects accompanying the propagation of ultrarelativistic electrons through crystals

The results obtained by experimentally investigating the dynamics of the propagation of 1.2-GeV electrons through a thin silicon single crystal are discussedyesBelgorod State Universit

Orientation effects accompanying the propagation of ultrarelativistic electrons through crystals

yesThe results obtained by experimentally investigating the dynamics of the propagation of 1.2-GeV electrons through a thin silicon single crystal are discussedBelgorod State Universit

1.2 GeV electron radiation spectra in thick tungsten single crystals and total radiation losses in tungsten, germanium and silicon single crystals

The experimental investigation of radiation energy losses of ultra relativistic electrons in aligned crystals of various atomic number are of great interest for several reaso

Orientation effects in ultrarelativistic electron transmission through a single crystal

yesThe results of experimental investigations of the 1.2 GeV electron transmission dynamics in a thin single crystal of Si are discussed. The interpretation of the electron scattering orientation dependencies measured under different scattering angles is carried outBelgorod State Universit

Orientation effects in ultrarelativistic electron transmission through a single crystal

The results of experimental investigations of the 1.2 GeV electron transmission dynamics in a thin single crystal of Si are discussed. The interpretation of the electron scattering orientation dependencies measured under different scattering angles is carried outyesBelgorod State Universit