Development of fast one-dimensional X-ray detector for imaging of explosions

Density distribution at the detonation front of cylindrical charges of small diameter

“…The design features of the detector used in the experiments are such that when a γ-ray quantum falls in one of the recording channels, a charge occurs not only in this channel but also in the neighboring channels [12]. This results in spatial spreading of the signal boundaries even in the case where the tested object absorbs the radiation completely.…”

“…The time between the photographs was determined by the period of rotation of the electron bunch in the accelerator and was 250 nsec. The radiation was recorded by a DIMEX detector 6 [12], which was also placed parallel to the axis of the charge at a distance of 1070 mm from the HE charge. One recording channel was 1 mm high and 0.1 mm along the charge axis, and the total number of channels was 256; thus, a segment 25.6 mm long along the charge was studied.…”

“…One recording channel was 1 mm high and 0.1 mm along the charge axis, and the total number of channels was 256; thus, a segment 25.6 mm long along the charge was studied. The detector can record 32 frames collected in this fast mode and has a recording efficiency ≈50% for γ-quanta with energies ≈30 keV [12]. The detector was started by closing the contact gauge placed at 15 mm behind the zone of incidence of the SR beam.…”

Tomography of the flow field of detonation product using SR

“…The characteristics of the X-ray radiation detector used in the investigation were described in detail in Ref. [3].…”

Ablation combustion of secondary powder explosives

“…In the experiments performed, a DIMEX detector [6][7][8] having 250 channels with h = 100 μm was used. By the moment of passage of the next pulse, all information was digitized and stored, thus generating one frame.…”