A high-resolution two-dimensional imaging velocimeter

Review of Scientific Instruments

Volumn 81, Issue 3, 2010, Pages

  Celliers, P M ^a   Erskine, D J ^a   Sorce, C M ^a   Braun, D G ^a   Landen, O L ^a   Collins, G W ^a  

^a LAWRENCE LIVERMORE NATIONAL LABORATORY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ABLATORS; FIELD OF VIEWS; FUNCTION OF TIME; HIGH RESOLUTION; HIGH-RESOLUTION MEASUREMENTS; INDIRECT-DRIVE; MICROSCOPIC FLUCTUATIONS; OPTICAL ARRANGEMENT; PICOSECOND TIME; SHOCK FRONTS; SHOCKED INTERFACES; SINGLE POINT; TWO-DIMENSIONAL IMAGING; VELOCITY FIELD; VELOCITY INTERFEROMETER;

VELOCITY;

TWO DIMENSIONAL;

EID: 77950555060     PISSN: 00346748     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.3310076     Document Type: Article

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20. The output phase in this data set was slightly contaminated by a ghost reflection from the external surface of the target package which interfered with the reflection from the shock front, because the two surfaces were within the coherence length of the probe pulse. Although the external surface was antireflection coated, such coatings are never perfect, and its contribution is apparent at a residual level. This problem is easily corrected by changing the dimensions of the target package (increasing the thickness of the PMMA layer), and it is not present for reflections from free surfaces.
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