|Native name||יונה אלסטר|
|Born||18 July 1933|
|👩 Spouse(s)||Rosette Dasberg|
Jonas Alster (born 18 July 1933) is an Israeli nuclear physicist.
Born in Berlin to an observant Jewish Orthodox family, he is the son of Lidi and Wolf, a merchant in the clothing business. At the age of 4, his family emigrated to Holland, and in 1942 they escaped the Nazis, becoming refugees in Switzerland. He was the first in his family to attend university, earning his Ph.D. in Nuclear Physics in 1961 from the technical university of Delft, via heavy ion scattering experiments carried out at the linear accelerator (Hilac) at Berkeley's Lawrence Radiation Laboratory, under the local supervision of Homer Conzett and the supervision at Delft of Aaldert. Wapstra.
In Amsterdam, he married Rosette Dasberg, and after some academic stops in Berkeley, Seattle, Boston and Paris, he joined the physics faculty at Tel Aviv University (TAU) in 1968, following an invitation by Yuval Ne'eman and Avivi Yavin. Rosette and Jonas have five children. Along his scientific career Jonas, continued to observe the Jewish faith, study the Talmud, and actively participate in Jewish history courses at TAU. Jonas has high level language skills, speaking fluently English, Hebrew, German, Dutch, French, and Yiddish.
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Jonas is best known for his discovery at Los Alamos Scientific Laboratory (LASL) of the nuclear isovector giant monopole resonance, studied by the pion-nucleus charge exchange reaction. This discovery was made possible following his efforts with David Bowman, Helmut W. Baer, Martin Cooper and Murray Moinester et al. at LASL and TAU to help design and construct a high resolution neutral pion spectrometer for Nuclear Structure experiments. He also wrote an important review article with Jaime Warszawski on pion-nucleus charge exchange reactions, which discussed his studies of Isovector giant dipole resonances and isobaric analog states. With Homer Conzett, he was among the first to measure and develop theoretical descriptions of heavy ions elastic scattering. He is credited together with Eli Piasetzky, Alan Carroll et al., of the first direct observation at Brookhaven National Laboratory of two-nucleon short range correlations in nuclei using high momentum transfer hard (p,2p) knock-out scattering reactions. With Gerald Peterson, Murray Moinester, and Jechiel Lichtenstadt et al., he made significant contributions to Nuclear Structure via elastic and inelastic electron and alpha scattering, and via direct transfer pickup and stripping reactions. He also contributed with Bruce Barnett et al. at Canada's TRIUMF accelerator to determine neutron and proton radii in nuclei from low energy pion scattering. With Jechiel Lichtenstadt et al., at the Stanford Linear Accelerator Center (SLAC), via deep inelastic electron scattering, he made important contributions to measuring nucleon electric and magnetic form factors, as well as quark and gluon distributions in nucleons.
- Erell, A., Alster, J., et al. (1986). Measurements on isovector giant resonances in pion charge exchange. Physical Review C, 34, 1822.
- Erell, A., Alster, J., et al. (1984). Properties of the isovector monopole and other giant resonances in pion charge exchange. Physical Review Letters 52, 2134.
- Baer, H. W., Alster, Bowman, J. D., Cooper, M. D., Moinester, M., et al. (1981). Design, construction, and performance of a high-resolution π0 spectrometer for nuclear physics experiments. Nuclear Instruments and Methods, 180, 445.
- Alster, J., Warszawski, J. (1979). Pion-nucleus charge exchange reactions. Physics Reports, 52, 87
- Alster, J., Conzett, H. E. (1965). Comparison between Phase Shift and Complex Potential Descriptions of Elastic Scattering. Physical Review, B139, 50.
- Aclander, J., Alster, J., Piasetzky, E., Carroll, A., et al. (1999). The large momentum transfer reaction 12C (p, 2p+ n) as a new method for measuring short range NN correlations in nuclei. Physics Letters B453, 211.
- Lichtenstadt, J., Alster, J., et al. (1990). Multi-nucleon degrees of freedom in inelastic form factors of 7Li. Physics Letters B244, 173
- M.A.Plum, J.Alster et al. (1984). Isoscalar and isovector M4 spin transitions in 14C. Physics Letters B137, 15.
- Alster, J., et al. (1966). Nuclear-Structure Studies of Sr88 and Y89 by Inelastic Alpha-Particle Scattering. Physical Review 144, 999.
- Moalem, A., Alster, J., et al. (1972). Study of the Even Molybdenum Isotopes with the (p, t) Reaction. Nuclear Physics A196, 605.
- Barnett, B. M., Alster J., et al. (1985). Density distribution differences of protons in 16, 18O from ratios of π+ elastic scattering cross sections. Physics Letters B156, 172.
- Andivahis, L., Alster, J., et al. (1994). Measurements of the electric and magnetic form factors of the proton from Q 2= 1.75 to 8.83 (GeV/c) 2. Physical Review D50, 5491.
- Arnold, R. G., Alster,J. et al. (1986). Deuteron magnetic form factor measurements at high momentum transfer. Phys. Rev. Lett. 58, 1723.
- Prof. Jonas Alster on Tel Aviv University website
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