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Basic and applied atomic spectroscopy in high-field ion diode acceleration gaps

Published online by Cambridge University Press:  09 March 2009

J.E. Bailey ,
A.B. Filuk ,
A.L. Carlson ,
D.J. Johnson ,
P. Lake ,
E.J. McGuire ,
T.A. Mehlhorn ,
T.D. Pointon ,
T.J. Renk  and
W.A. Stygar
...Show all authors
J.E. Bailey
Affiliation:
Sandia National Laboratories, Albuquerque, NM 87185
A.B. Filuk
Affiliation:
Sandia National Laboratories, Albuquerque, NM 87185
A.L. Carlson
Affiliation:
Sandia National Laboratories, Albuquerque, NM 87185
D.J. Johnson
Affiliation:
Sandia National Laboratories, Albuquerque, NM 87185
P. Lake
Affiliation:
Sandia National Laboratories, Albuquerque, NM 87185
E.J. McGuire
Affiliation:
Sandia National Laboratories, Albuquerque, NM 87185
T.A. Mehlhorn
Affiliation:
Sandia National Laboratories, Albuquerque, NM 87185
T.D. Pointon
Affiliation:
Sandia National Laboratories, Albuquerque, NM 87185
T.J. Renk
Affiliation:
Sandia National Laboratories, Albuquerque, NM 87185
W.A. Stygar
Affiliation:
Sandia National Laboratories, Albuquerque, NM 87185
Y. Maron
Affiliation:
Weizmann Institute of Science, Rehovot, Israel, 76100
E. Stambulchik
Affiliation:
Weizmann Institute of Science, Rehovot, Israel, 76100
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Abstract

Achieving inertial confinement fusion using a light-ion-beam driver requires continued improvement in understanding ion diode physics. The power delivered to a light-ion beam target is strongly influenced by the evolution of the charge-particle distributions across the ion beam acceleration gap. Our strategy is to determine this evolution from time- and space-resolved measurements of the electric field using Stark-shifted line emission. In addition to diode physics, the unique high-field (∼10 MV/cm, ∼6T) conditions in present experiments offer the possibility to advance basic atomic physics, for example by measuring field ionization rates for tightly bound low-principal-quantum-number levels. In fact, extension of atomic physics into the high-field regime is required for accurate interpretation of diode physics measurements. This paper describes progress in ion diode physics and basic atomic physics, obtained with visible-light atomic spectroscopy measurements in the ∼20 TW Particle Beam Fusion Accelerator II ion diode.

Type
Research Article
Information
Laser and Particle Beams , Volume 14 , Issue 4 , December 1996 , pp. 543 - 553
Copyright
Copyright © Cambridge University Press 1996

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References

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