Research output: Contribution to journal › Article › peer-review
Study of the Accumulation of Impurities in a Thin Lithium Target by Ion Scattering Spectroscopy. / Bikchurina, M. I.; Bykov, T. A.; Kasatov, D. A. et al.
In: Physics of Particles and Nuclei Letters, Vol. 21, No. 3, 06.2024, p. 395-399.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Study of the Accumulation of Impurities in a Thin Lithium Target by Ion Scattering Spectroscopy
AU - Bikchurina, M. I.
AU - Bykov, T. A.
AU - Kasatov, D. A.
AU - Kolesnikov, I. A.
AU - Sokolova, E. O.
AU - Shchudlo, I. M.
AU - Taskaev, S. Yu
N1 - The research was supported by a grant from the Russian Science Foundation (project no. 19-72-30005).
PY - 2024/6
Y1 - 2024/6
N2 - An accelerator-based epithermal neutron source (VITA) has been created and is now operating at the Budker Institute of Nuclear Physics. VITA includes an original tandem electrostatic accelerator (vacuum-insulated tandem accelerator), which produces a monoenergetic beam of protons or deuterons with energies from 0.3 to 2.3 MeV and currents up to 10 mA, and a thin lithium target that generates a powerful neutron flux in 7Li(p, n)7Be and Li(d, n) reactions. The facility is used to develop boron neutron capture therapy and many other applications. Heavy impurities contained in a lithium target are known to significantly decrease the neutron yield and make the target unusable. The purpose of this study was to examine the accumulation of impurities in a thin lithium target. The elemental composition of the sample was determined by ion scattering spectroscopy. The composition of the lithium layer immediately after sputtering on a copper substrate was determined in the experiments. The interaction of lithium with air and the effect of the impurities on the neutron yield were studied. The accumulation of impurities during proton beam irradiation of the target at a beam power density of 1 kW/cm2 and up to 3.4 kW/cm2 was investigated.
AB - An accelerator-based epithermal neutron source (VITA) has been created and is now operating at the Budker Institute of Nuclear Physics. VITA includes an original tandem electrostatic accelerator (vacuum-insulated tandem accelerator), which produces a monoenergetic beam of protons or deuterons with energies from 0.3 to 2.3 MeV and currents up to 10 mA, and a thin lithium target that generates a powerful neutron flux in 7Li(p, n)7Be and Li(d, n) reactions. The facility is used to develop boron neutron capture therapy and many other applications. Heavy impurities contained in a lithium target are known to significantly decrease the neutron yield and make the target unusable. The purpose of this study was to examine the accumulation of impurities in a thin lithium target. The elemental composition of the sample was determined by ion scattering spectroscopy. The composition of the lithium layer immediately after sputtering on a copper substrate was determined in the experiments. The interaction of lithium with air and the effect of the impurities on the neutron yield were studied. The accumulation of impurities during proton beam irradiation of the target at a beam power density of 1 kW/cm2 and up to 3.4 kW/cm2 was investigated.
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85195537789&origin=inward&txGid=c398a75c7f2dab39cc56230bc650a2cd
UR - https://www.mendeley.com/catalogue/c3a97856-0345-378a-874d-7e804d3ccee1/
U2 - 10.1134/S154747712470033X
DO - 10.1134/S154747712470033X
M3 - Article
VL - 21
SP - 395
EP - 399
JO - Physics of Particles and Nuclei Letters
JF - Physics of Particles and Nuclei Letters
SN - 1547-4771
IS - 3
ER -
ID: 61117194