M. Hass
Argonne National Laboratory
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Publication
Featured researches published by M. Hass.
Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms | 1989
Richard W. Dunford; H. G. Berry; Chian Liu; M. Hass; R. C. Pardo; M.L.A. Raphaelian; B.J. Zabransky
Abstract We report on a new atomic physics facility at the Argonne PII ECR ion source which was built for the Uranium Upgrade of the ATLAS heavy-ion accelerator. An important feature of our ECR ion source is that it is on a high-voltage platform which provides beam energies of up to 350 q keV, where q is the charge of the ion. We discuss the experimental program in progress at this ion source which includes measurements of state-selective electron capture cross sections, photon and electron spectroscopy, studies of quasi-molecular collisions, and polarization studies using an optically pumped Na target.
Journal of Physics B | 1989
Chian Liu; R. W. Dunford; H. G. Berry; R. C. Pardo; K. O. Groeneveld; M. Hass; M.L.A. Raphaelian
Photon emission cross sections have been measured between 100 and 600 AA in collisions of 2-105 keV amu-1 O6+ ions on helium. The results extend existing data at low energy (0.56-7.13 keV amu-1) to higher energy. The data are compared with the existing atomic orbital calculations for one-electron capture in (quasi-) two-electron systems.
European Physical Journal D | 1991
Richard W. Dunford; H. G. Berry; D.A. Church; T. P. Dinneen; M. Hass; Chian Liu; N. Berrah-Mansour; R. C. Pardo; M.L.A. Raphaelian; Linda Young; B.J. Zabransky; Lorenzo J. Curtis
We describe recent precision experiments in fewelectron ions including measurements of the lifetimes of two-photon-emitting levels in Ni26+ and Ni27+, a measurement of the lifetime of the 23S1 level in Br33+ and measurements of the 23S1 + 23P0,1,2 transition energies in B3+.
Physical Review A | 1988
R. W. Dunford; H. G. Berry; K. O. Groeneveld; M. Hass; E. Bakke; M.L.A. Raphaelian; A. E. Livingston; Lorenzo J. Curtis
We report the observation of the two-photon decay of the
Physical Review A | 1988
R. W. Dunford; H. G. Berry; K. O. Groeneveld; M. Hass; E. Bakke; M.L.A. Raphaelian; A. E. Livingston; Lorenzo J. Curtis
{2}^{1}
Physical Review A | 1988
R. W. Dunford; H. G. Berry; K. O. Groeneveld; M. Hass; E. Bakke; M.L.A. Raphaelian; A. E. Livingston; Lorenzo J. Curtis
Annual Review of Nuclear and Particle Science | 1982
H. G. Berry; M. Hass
{S}_{0}
Physical Review A | 1993
R. W. Dunford; H. G. Berry; D.A. Church; M. Hass; Chian Liu; M.L.A. Raphaelian; B.J. Zabransky; Lorenzo J. Curtis; A. E. Livingston
level in heliumlike
Physical Review Letters | 1989
R. W. Dunford; M. Hass; E. Bakke; H. G. Berry; Chian Liu; M.L.A. Raphaelian; Lorenzo J. Curtis
{\mathrm{Ni}}^{26+}
Physical Review A | 1990
R. W. Dunford; D.A. Church; Chian Liu; H. G. Berry; M.L.A. Raphaelian; M. Hass; Lorenzo J. Curtis
and a measurement of the lifetime of this state. We find a lifetime of 150(16) ps, in agreement with the theoretical calculation of G. W. F. Drake [Phys. Rev. A 34, 2871 (1986)] which yields 154.3(5) ps.
