Lecturer: Mr. Moshe Tessler
Affiliation: Racah Institute of Physics,
The Hebrew University of Jerusalem
Abstract:
A high-power Liquid-Lithium Target
(LiLiT) was used for the first time for
neutron production via the thick-target
7Li(p,n)7Be reaction and quantitative
determination of neutron capture cross
sections. Bombarded with a 1-2 mA
proton beam at 1.92 MeV from the
Soreq Applied Research Accelerator
Facility (SARAF), the setup yields a
30-keV quasi-Maxwellian neutron
spectrum with an intensity of 3-
5×10^10 n/s, more than one order of
magnitude larger than presently
available near-threshold 7Li(p,n)
neutron sources. The setup was used
to determine the 30-keV Maxwellian
averaged cross section (MACS) of
94Zr and 96Zr based on activation
measurements. In addition, we show
that the setup yields intense high-
energy (17.6 and 14.6 MeV) prompt
capture γ rays (~10^9 γ/s) from
7Li(p,γ)8Be, evidenced by the
90Zr(γ,n)89Zr photonuclear reaction.
The details of these measurements
will be described in this talk.
Additional details of the upcoming Israeli
Joint Nuclear Physics' Seminars can be
found on the following link.