Abstract
The radiation in the X-ray range detected outside the vacuum chamber of the dense plasma focus (DPF) PACO, are produced on the anode zone. The zone of emission is studied in a shot-to-shot analysis, using pure deuterium as filling gas. We present a diagnostic method to determine the place and size of the hard X-ray source by image analysis of high density radiography plates.
Highlights
The dense plasma focus device (DPF) [1,2] produces a hot dense plasma by the rapid magnetic compression of a plasma cylinder formed at the end of a coaxial electrode system
Procedure and Results The idea of the experiment was to put an obstacle between the source and the radiographic plate and analyze the image on the plate to infer the size of the source of radiation
The obstacle consisted in a copper plate with a thickness c = (0.50 ± 0.05) mm located at a distance a below the anode of a = (380 ± 5) mm Radiographic plates where located at a distance b = (800 ± 5) mm below the copper plate
Summary
The dense plasma focus device (DPF) [1,2] produces a hot dense plasma by the rapid magnetic compression of a plasma cylinder formed at the end of a coaxial electrode system (see figure 1). Taking into account that the shadow projected by them points towards the source, drawing lines along these shadows and intersecting them it was possible to determine the focus position, from which distances were measured. Such curves result to be proportional to the received radiation on every zone of the plate.
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