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Storage of ions from laser-produced plasmasA method of storing large numbers of metal ions created in laser-produced plasmas is presented. The outer electrode of the electrostatic ion trap is designed to give a harmonic axial potential. The ions trapped by the technique included Be(+), C(+), Al(+), Fe(+), and Pb(+). The initial number of ions stored (2 x 10 to the 8th) appeared to be the trap maximum since increasing the laser power beyond 2-3 MW did not change the ion number. An initial rapid decay in the 30-50 msec range was generally followed by a long tail at the 10% level with times greater than 100 msec. The technique should be valuable for refractory elements which cannot be easily vaporized for electron impact ionization.
Document ID
19810042602
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Knight, R. D.
(Harvard-Smithsonian Center for Astrophysics Cambridge, Mass., United States)
Date Acquired
August 11, 2013
Publication Date
February 15, 1981
Publication Information
Publication: Applied Physics Letters
Volume: 38
Subject Category
Plasma Physics
Accession Number
81A27006
Funding Number(s)
CONTRACT_GRANT: NGL-22-007-006
Distribution Limits
Public
Copyright
Other

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