The measurement of the 6Li(n, t)4He reaction cross-section in the energy range of 4.25–7.50 MeV

Not scheduled
20m

Speaker

Dr P.S. Prusachenko (Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research)

Description

The measurement of the total cross-section of the 6Li(n,t)4He reaction was carried out over the energy range of 4.25-7.50 MeV by a time-of-flight method relative to the cross-section of the 235U fission. The Cs2LiYCl6:Ce based scintillation detector was used as a lithium containing target. The scintillation detector was placed in an axially symmetrical geometry relative to a monitor fission chamber containing 235U layers. The pulsed quasi-monoenergetic neutron beam from the 2H(d,n)3He reaction was used as a neutron source. The total systematic uncertainty in the experiment was 4.6-6.7% with the statistical uncertainty of 2.0-3.7%. The obtained data do not support the evaluated cross-section of the 6Li(n,t)4He reaction from the ENDF-B/VIII.0 library. At the same time, the average difference between the evaluated cross-section from the JENDL-5.0 library and the experimental data obtained in this work also exceeds the total systematic uncertainty of the measurements.

Section Experimental and theoretical studies of nuclear reactions

Primary author

Dr P.S. Prusachenko (Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research)

Co-author

Mr T.L. Bobrovskiy (Institute for Physics and Power Engineering)

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