1887
banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
Tracking an imploding cylinder with photonic Doppler velocimetry
Rent:
Rent this article for
USD
10.1063/1.4803074
/content/aip/journal/rsi/84/5/10.1063/1.4803074
http://aip.metastore.ingenta.com/content/aip/journal/rsi/84/5/10.1063/1.4803074
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Top) Conceptual layout of a cylindrical implosion experiment. The liner is a cylindrical shell of beryllium with an inner diameter of 4 mm and a thickness of 0.9 mm. (Bottom) Static radiograph of the target assembly in experiment Z2424. The gold rod (1 mm outer diameter) appears dark in this image due to its high opacity, while the beryllium liner is faint.

Image of FIG. 2.
FIG. 2.

Leapfrog PDV. Dashed boxes indicate modular PDV channels, each composed of a three-port circulator, a 90/10 splitter with retroreflector (RR), and an amplified receiver (D). External modifications create a conventional channel (1) and two frequency-shifted channels (2 and 3).

Image of FIG. 3.
FIG. 3.

(Top) Characteristic velocity in a cylindrical implosion experiment. The active range of a conventional PDV measurement (channel 1) is indicated by the dashed blue box. Frequency-shifted measurements (channels 2 and 3) are indicated by the dashed green and red boxes. (Bottom) Characteristic beat frequencies obtained in a leapfrog PDV measurement. The blue, green, and red lines indicate channels 1, 2, and 3, respectively.

Image of FIG. 4.
FIG. 4.

STFT images (1.01 ns Hamming window applied in 62.5 ps intervals) for experiment Z2424. The top image is the conventional channel, while the middle and bottom images are frequency shifted with 14.1 km/s and 28.5 km/s null velocities, respectively. Color indicates the strength of a particular time-frequency element relative to the strongest element in each image. Black lines indicate one-dimensional simulations based on B-dot (solid) and load current VISAR (dashed) measurements.

Image of FIG. 5.
FIG. 5.

STFT images (1.01 ns Hamming window applied in 62.5 ps intervals) of Al liner implosions in Z2370 (top) and Z2408 (bottom). Black lines indicate one-dimensional simulations based on B-dot current measurements.

Loading

Article metrics loading...

/content/aip/journal/rsi/84/5/10.1063/1.4803074
2013-05-02
2014-04-19
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Tracking an imploding cylinder with photonic Doppler velocimetry
http://aip.metastore.ingenta.com/content/aip/journal/rsi/84/5/10.1063/1.4803074
10.1063/1.4803074
SEARCH_EXPAND_ITEM