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U.S. Department of Energy
Office of Scientific and Technical Information

Experimental study of interactions of highly charged ions with atoms at keV energies. Progress report, May 15, 1983-May 14, 1984

Technical Report ·
OSTI ID:5270930
The interest, both theoretical and experimental, in interactions of low energy highly charged ions with electrons, atoms or ions is partly due to the importance of such interactions to controlled thermonuclear fusion research and partly to the intrinsically interesting nature of the fundamental processes involved. This program centers around two main lines of activity. One involves atomic physics experiments and source studies and development using a small EBIS, called CEBIS I, which was constructed and tested under DOE contract. The other, initiated in August 1983, involves the design, construction and development of a larger superconducting solenoid version, called CEBIS II, capable of competing with existing and under construction European sources. CEBIS I is used to investigate low energy charge transfer to multiply charged ions, in particular to measure partial cross sections for population of specific states of the projectile as a function of its energy for C/sup q+/, N/sub q+/ and O/sup q+/ (q greater than or equal to 3) colliding with molecular hydrogen and helium in the 0.05 qkeV to 5 qkeV range. Specific states of the projectile populated in the collision are selected by high resolution energy gain spectroscopy. The immediate goal of CEBIS II will be to generate a usable, approx. 3 qkeV beam of Ar/sup 18 +/. Longer range goals include optimization of the source and gradually upgrading it to handle a 25 kV, 1A electron beam which could be used to produce He-like xenon. Both sources will be used in atomic physics experiments involving low energy highly charged ions and studies of the behavior and properties of EBIS sources in general.
Research Organization:
Cornell Univ., Ithaca, NY (USA)
DOE Contract Number:
AC02-81ER10905
OSTI ID:
5270930
Report Number(s):
DOE/ER/10905-3; ON: DE84006315
Country of Publication:
United States
Language:
English