Speaker
Prof.
Alexander Derbin
(Petersburg Nuclear Physics Institute)
Description
Measurements of the beta spectra of $^{144}\rm{Ce}$ and $^{144}\rm{Pr}$ are necessary for the successful implementation of a search for neutrino oscillations in a sterile state with artificial antineutrino source $^{144}\rm{Pr}$. The $^{144}\rm{Ce}-^{144}\rm{Pr}$ target with a thickness of about 1 $\mu\rm{g~cm^{-2}}$ is deposited on the Mylar substrate and is covered with 200 Å of palladium. The $^{207}\rm{Bi}$ and $^{144}\rm{Ce}-^{144}\rm{Pr}$ sources are located 14 mm from the Si(Li)-detector with a diameter of 16 mm and a thickness of 7 mm. The performed measurements allow to establish the response function of Si(Li) detector and to determine the concentration of $\alpha$-, $\beta$- and $\gamma$-active impurities in the target.
Primary author
Prof.
Alexander Derbin
(Petersburg Nuclear Physics Institute)
Co-authors
Dr
Dmitrii Semenov
(Petersburg Nuclear Physics Institute)
Dr
Eugenu Unzhakov
(Petersburg Nuclear Physics Institute)
Dr
Ilia Drachnev
(Petersburg Nuclear Physics Institute)
Dr
Sergei Bakhlanov
(Petersburg Nuclear Physics Institute)
Dr
Valentina Muratova
(Petersburg Nuclear Physics Institute)
