Resolving microstructures in Z pinches with intensity interferometry

Nearly 60 years ago, Hanbury Brown and Twiss [R. Hanbury Brown and R. Q. Twiss, Nature 178, 1046 (1956)] succeeded in measuring the 30 nrad angular diameter of Sirius using a new type of interferometry that exploited the interference of photons independently emitted from different regions of the ste...

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Bibliographic Details
Published in:Physics of plasmas 2014-03, Vol.21 (3)
Main Authors: Apruzese, J. P., Kroupp, E., Maron, Y., Giuliani, J. L., Thornhill, J. W.
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Beam splitters
BEAM SPLITTING
Correlation analysis
CORRELATIONS
CURRENTS
INTERFEROMETRY
LASER-PRODUCED PLASMA
MICROSTRUCTURE
PHOTONS
Plasma physics
Plasmas (physics)
Quantitative analysis
SPATIAL RESOLUTION
X RADIATION
X ray interferometry
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Summary:Nearly 60 years ago, Hanbury Brown and Twiss [R. Hanbury Brown and R. Q. Twiss, Nature 178, 1046 (1956)] succeeded in measuring the 30 nrad angular diameter of Sirius using a new type of interferometry that exploited the interference of photons independently emitted from different regions of the stellar disk. Its basis was the measurement of intensity correlations as a function of detector spacing, with no beam splitting or preservation of phase information needed. Applied to Z pinches, X pinches, or laser-produced plasmas, this method could potentially provide spatial resolution under one micron. A quantitative analysis based on the work of Purcell [E. M. Purcell, Nature 178, 1449 (1956)] reveals that obtaining adequate statistics from x-ray interferometry of a Z-pinch microstructure would require using the highest-current generators available. However, using visible light interferometry would reduce the needed photon count and could enable its use on sub-MA machines.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.4864336