Framing camera diagnostic system and its adjustment method used in Shenguang Ⅱ laser device

Abstract

The invention discloses a framing camera diagnostic system used on a Shenguang II upgraded laser device. The system includes a pinhole array adjustment system, an X-ray single-channel mirror adjustment system, a target arm fixing system and a framing camera. The invention can realize the gating of the X spectrum band, and the X-ray with a central wavelength of 4.7KeV and a bandwidth of ±0.2KeV can be selected by the X-ray single-energy channel mirror to pass through, and then recorded by the framing camera, which can improve the clarity of the experimental image; according to the needs , change the number of pinholes on the array pinhole plate, and then change the number of single-shot experimental images; the pinhole cone adjustment system can achieve a translation of ±30mm, so it can cooperate with a framing camera according to needs, in a certain Change the magnification of the system within a certain range; the invention has high adjustment accuracy, and can control the deviation from the main optical axis of the array pinhole, X-ray single-energy road mirror and framing camera to ≤50 μm; the adjustment mechanism of the invention is simple and easy to use , the equipment is relatively solid.

Description

technical field [0001] The invention belongs to the field of X-ray imaging diagnosis, and in particular relates to a framing camera diagnosis system used in a Shenguang II laser device and an adjustment method thereof. Background technique [0002] To realize the fusion ignition of deuterium-tritium (DT) in inertial confinement fusion (ICF), the compression process and effect of the implosion of the target capsule must be strictly controlled, and a large number of X-rays will be emitted during the compression process of the implosion. Therefore, it can be recorded by X-ray topography to inverse the symmetry throughout the implosion compression process. In the experiment, a framing camera is usually used to collect the X-ray morphology emitted by the deuterium-tritium target ball in the ICF. In addition, the framing camera diagnostic system is also widely used in the recording of X-ray morphology in laboratory astrophysics, shock wave physics and laser plasma physics, and ha...

AI Technical Summary

Problems solved by technology

[0003] In experimental research, X-rays have a wide spectral band, so the images recorded by conventional framing cameras are often a collection of X-rays in multiple bands, which is not conducive to the spatial resolution of the implosion compression process.

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