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Thermal imaging diagnostics of high-current electron beams
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10.1063/1.4756689
/content/aip/journal/rsi/83/10/10.1063/1.4756689
http://aip.metastore.ingenta.com/content/aip/journal/rsi/83/10/10.1063/1.4756689
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

The scheme of the thermal diagnostics of the electron beam; (a) the diode chamber of the accelerator TEU-500 (1); the cathode (2); the anode grid and aluminum foil (3); the thermal imager (4); the foamed polystyrene (5). The oscilloscope traces (b) of the accelerating voltage (1) and of the electron beam current (2).

Image of FIG. 2.
FIG. 2.

The thermograms of the target with the A–K gap of 10.5 mm (a) and 16 mm (b). Each space in the scale is 10 mm.

Image of FIG. 3.
FIG. 3.

Oscilloscope traces of the accelerating voltage (a) and the distribution of the absorbed dose over the depth of the target (b) at the A–K gap of 10.5 mm (1) and 16 mm (2).

Image of FIG. 4.
FIG. 4.

Normalized distribution of the absorbed dose over the depth of the target (spot) at A–K gap of 10.5 mm (1) and 16 mm (2). Modeling of electron absorption (line) with the energy of 100 keV (3), 300 keV (4), 380 keV (5), and 500 keV (6).

Image of FIG. 5.
FIG. 5.

Distribution of the absorbed dose over the depth of the target (1–section 2, 2–section 1 and 3 in Fig. 2(a)): absolute (a) and normalized (b) values.

Image of FIG. 6.
FIG. 6.

The thermal print of the electron beam on the foamed polystyrene target 8 mm (a), 16 mm (b), and 24 mm (c) thick.

Image of FIG. 7.
FIG. 7.

Distribution of the absorbed dose on the foamed polystyrene target 8 mm (1), 16 mm (2), and 24 mm (3) thick. Absolute (a) and normalized (b) values.

Image of FIG. 8.
FIG. 8.

The thermogram of the electron beam and the distribution of the absorbed dose in the horizontal section after 2 (1), 11 (2), and 18 s (3) after the irradiation.

Image of FIG. 9.
FIG. 9.

Normalized distribution of the absorbed dose in the horizontal section (data of Fig. 8) and the dynamics of cooling the target 16 mm thick (1) and 24 mm thick (2).

Image of FIG. 10.
FIG. 10.

The thermogram of the electron beam and the distribution of the absorbed dose in the horizontal section of the print.

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/content/aip/journal/rsi/83/10/10.1063/1.4756689
2012-10-08
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Thermal imaging diagnostics of high-current electron beams
http://aip.metastore.ingenta.com/content/aip/journal/rsi/83/10/10.1063/1.4756689
10.1063/1.4756689
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