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X-ray focusing optical system

A technology for focusing optical systems and X-rays, applied in the field of X-ray detection, can solve the problems affecting signal photon extraction, detector dark count rate and power consumption increase, etc. Versatility, the effect of improving reflection efficiency

Active Publication Date: 2015-04-22
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

However, as the detector area increases, the dark count rate and power consumption of the detector will increase, which will affect the extraction of signal photons.

Method used

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Embodiment Construction

[0041] Starting from the principle of the present invention, the present invention will be described in detail in conjunction with the accompanying drawings.

[0042] Figure 1-3 Shown is the demonstration of the principle of the present invention. The present invention uses multiple sets of reflective mirrors to achieve photon convergence through single reflection of parallel or approximately parallel incident X-rays; multiple sets of reflective mirrors are spliced ​​to form a multi-layer nested lens structure. The multi-layer nested structure can increase the light-collecting area of ​​the system, which is convenient for the detection of weak and extremely weak target light sources.

[0043] Such as Figure 4 As shown, the focusing optical system of the present invention includes a first gland 1, a first buffer layer 2, a mirror assembly 3, a positioning support web 4, a lens barrel 5, a central shaft 6, a second buffer layer 7, and a second gland 8 etc. The reflective su...

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Abstract

The invention relates to an X-ray focusing optical system which comprises a lens cone, a reflector set and a supporting frame. The reflector set and the supporting frame are arranged in the lens cone, the reflector set is of a multi-layer sleeve structure formed by nesting a plurality of single-layer reflectors, the single-layer reflectors are in rotational symmetry about an optical axis, a reflecting face is arranged on the inner surface of each single-layer reflector, the inner surface of each single-layer reflector in the shape of a conical curved face, the radial distance between the single-layer reflectors is changed gradually, the single-layer reflectors are confocal, X rays incident in parallel or in approximately parallel can be focused in a grazing incidence mode through one-time reflection. The X-ray photon collecting efficiency can be effectively improved, and the simple, convenient and efficient focusing optical system is provided for detecting weak X-ray photons under the condition of X-ray pulsar navigation and X-ray communication and other non-imaging application conditions.

Description

technical field [0001] The invention relates to the field of X-ray detection, in particular to X-ray focusing optics, which has important application value in weak X-ray signal detection (such as X-ray pulsar navigation and X-ray communication, etc.). Background technique [0002] In the application of extremely weak X-ray photon detection (such as X-ray pulsar navigation and X-ray deep space communication), due to the weak radiation of the detection target, in order to receive as many signal photons as possible, there are usually two methods: one is Increase the area of ​​the X-ray detector, such as the large-area X-ray pulse detection method based on micro-channel plate splicing proposed by Xi'an Optical Machinery, Chinese Academy of Sciences (patent application number: 201110449030.7, 201310283151.8). The second is to use X-ray focusing optics to increase the X-ray collection area, and then converge the collected X-ray photons to the receiving surface of the detector. ...

Claims

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Application Information

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IPC IPC(8): G01T1/29
Inventor 刘永安盛立志刘舵李林森代锦飞刘哲赵宝升
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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