Measurements of the Properties of Highly-charged high-Z ions

Technical Report · Tue Apr 03 00:00:00 EDT 2007

DOI:https://doi.org/10.2172/901632· OSTI ID:901632

Augustine J Smith, Ph D

We had proposed carrying out a systematic experimental investigation of the atomic physics of highly charged, high-Z ions, produced in the Lawrence Livermore National Laboratory (LLNL) electron beam ion trap (EBIT-I) in its high energy mode, superEBIT. In particular we were going to accurately measure line positions for Δn=0 transitions in few electron high-Z ions; this was meant to enable us to investigate relativistic and quantum electrodynamics QED contributions to the energy levels as well as the nuclear properties of heavy ions. We were also going to measure cross sections for various electron-ion interactions, the degree of polarization of emitted x-rays, and radiation cooling rates of various ionization stages of highly charged, high-Z ions. This would enable us to study fundamental atomic physics of high-Z ions at relativistic electron impact energies and in the intense nuclear fields of highly ionized, high-Z ions. This would extend previous measurements we have carried out to a regime where there is a paucity of good data. These measurements were expected to generate increased theoretical interest and activity in this area. The project will extend a very successful collaboration between Morehouse College (MC) and a national laboratory LLNL, Minority student training and development are major components of the proposal.

• Research Organization: Morehouse College
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: FG02-98ER14877
• OSTI ID: 901632
• Report Number(s): DE-FG02-98ER14877; TRN: US0703567
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ATOMIC PHYSICS
CROSS SECTIONS
ELECTRON BEAMS
ELECTRONS
ENERGY LEVELS
HEAVY IONS
IONIZATION
LAWRENCE LIVERMORE NATIONAL LABORATORY
NUCLEAR PROPERTIES
POLARIZATION
QUANTUM ELECTRODYNAMICS
RADIATIONS
TRAINING
Highly-charged high-Z ions
Electron Impact Excitation Cross Sections
Polarization
X-ray emmission