Joint Seminar in Nuclear Physics
PROGRAM
14:00 - 14:20 Gathering
14:20 - 14:50 "The Soreq Applied Research Accelerator Facility – SARAF", Dan Berkovits, SNRC
Abstract:
The Soreq Applied Research Accelerator Facility - SARAF (Berkovits) New medium-high energy ion accelerators have been built or are under construction around the world in order to address nuclear physics scientific challenges. As part of this global trend, Soreq Nuclear Research Center (SNRC) is constructing the Soreq Applied Research Accelerator Facility (SARAF), a user facility that will be based on a state-of-the-art light ion (protons and deuterons), medium energy (40 MeV) high CW current (5mA) accelerator, to be completed by the beginning of the next decade. These cutting-edge specifications, with the proper target area instrumentation, will make SARAF one of the world's most potent deuteron, proton and fast neutron sources. In this talk the research program at SARAF, the foreseen complete facility (SARAF Phase II), and the existing and operational facility (SARAF Phase I), including its recent scientific achievements, will be described.
14:50 - 15:20 "Nuclear Physics and Astrophysics at SARAF", Moshe Tessler, HUJI
Abstract:
Nuclear Physics and Astrophysics at SARAF (Tessler) 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.
15:20 - 15:50 "Searching for Beyond SM Physics using Trapped Rare Isotopes", Guy Ron, HUJI
Abstract:
Searching for Beyond SM Physics using Trapped Rare Isotopes (Ron) Trapped radioactive atoms and ions have become a standard tool of the trade for precision studies of beyond SM physics. Beta decay studies, in particular, offer the possibility of detecting deviations from standard model predictions of the weak interaction which signal new physics.
These 'precision frontier' searches are complementary to the high energy searches performed by the LHC and other high energy/high luminosity facilities. I will present a general overview of the topic, focusing on future plans making use of SARAF and it's unique capabilities.
15:50 - 16:10 Coffee Break
16:10 - 17:00 Tour of the SARAF facility
