Basic properties of a new streak camera and its test results are reported. To intensify images on its screen, we employed modular G1 tubes, the LD-A-1.0 and LD-A-0.33, enabling magnification of 1.0 and 0.33, respectively. If necessary, the LD-A-0.33 tube may be substituted by any other image intensifier of the LDA series, the choice to be determined by the size of the CCD matrix with fiber-optical windows. The reported camera employs a 12.5- mm-long CCD strip consisting of 1024 pixels, each 12 X 500 micrometers in size. Registered radiation was imaged on a 5 X 0.04 mm slit diaphragm tightly connected with the LD-S- 10 fiber-optical input window. Electrons escaping the cathode are accelerated in a 5 kV electric field and focused onto a phosphor screen covering a fiber-optical plate as they travel between deflection plates. Sensitivity of the latter was 18 V/mm, which implies that the total deflecting voltage was 720 V per 40 mm of the screen surface, since reversed-polarity scan pulses +360 V and -360 V were applied across the deflection plate. The streak camera provides full scan times over the screen of 15, 30, 50, 100, 250, and 500 ns. Timing of the electrically or optically driven camera was done using a 10 ns step-controlled-delay (0 - 500 ns) circuit.
Properties of an electron-optical single-frame camera enabling gating duration of 100 ns are reported. Gating is performed using the type LD-F-5 image intensifier tube. To intensify images on its screen, modular Gen I tubes LD-A-1.0 and LD-A-0.33 providing magnification of 1.0 and 0.33, respectively, were utilized. If necessary, the LD-A-0.33 tube may be substituted by any other image intensifier of the LDA series, the choice to be determined by type and size of an image-sensing CCD matrix with fiber-optical windows. The reported camera employs a 11 X 7.5 mm CCD matrix with 576 X 360 pixels. The LD-F-5 electron-optical shutter is controlled using radio-polar rectangular 100 ns pulses with an amplitude of 360 V, front and rear edge widths of 15 ns, and top slope within 3%. The system provides dynamic spatial resolution of around 20 l.p./mm, which is slightly worse than static resolution. The dynamic range of the registered optical signal is of the order of 300. The LD- F-5 output was intensified by the LD-A-1.0 and LD-A-0.33 tubes, whereupon it was sensed by the CCD matrix and recorded into a buffer memory. Data processing and documenting were performed using IBM PC/XT/AT with an interface system of data transfer from the buffer memory.
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