Device and method for quantitative measurement of soft X-ray radiant flows in local area

Abstract

The invention provides a device and method for quantitative measurement of soft X-ray radiant flows in a local area. The device is characterized by comprising a pin hole, an X-ray imaging plate, a flat-response X-ray detector and an oscilloscope, wherein the pin hole is located in the front-most end, the X-ray imaging plate is located between the pin hole and the flat-response X-ray detector, a hole is formed in the X-ray imaging plate, the area of the hole is not greater than that of a cathode of the flat-response X-ray detector, the cathode of the flat-response X-ray detector is aligned to the hole formed in the X-ray imaging plate, and the oscilloscope is connected with the flat-response X-ray detector through a cable. Accordingly, the influence of hole shrinkage is avoided, and measurement of soft X-ray radiant flows in different areas is achieved.

Description

technical field [0001] The invention belongs to the field of quantitative measurement of soft X-ray radiation flow, and in particular relates to a quantitative measurement device and method for soft X-ray radiation flow in a local area. Background technique [0002] In the field of inertial confinement fusion, black cavity physics, radiation transport, radiation ablation, radiation opacity, and implosion dynamics all require quantitative measurements of soft X-ray radiation flux. At present, the commonly used quantitative measurement of soft X-ray radiation flux in the energy range of 0.1keV-5.0keV generally adopts a multi-channel soft X-ray energy spectrometer composed of an X-ray diode array, and a flat-response XRD with a composite filter and a gold cathode X-ray diode. There are two kinds of devices and methods for detectors. The X-ray diodes, filters, and plane mirrors used in the above devices must be calibrated on the synchrotron radiation beamline. Although these m...

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Problems solved by technology

[0003] The present invention aims at the problem that the radiation flow in different regions cannot be measured in the quantitative measurement of the soft X-ray radiation flow, and it is difficult to avoid shrinkage cavity images, and proposes a local area X-ray that can measure the radiation flow in a local area and avoid the influence of shrinkage cavities. Quantitative measurement method and device for radiation flow to realize quantitative measurement of soft X-ray radiation flow in the field of inertial confinement fusion, black cavity physics, radiation transport, radiation ablation, radiation opacity and implosion dynamics

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