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High-energy X-ray conversion targeting device

A light conversion, high-energy technology, applied in the direction of X-ray tube electrodes, X-ray tube parts, etc., can solve the problems affecting X-ray resolution and exposure, and achieve high-resolution effects

Inactive Publication Date: 2010-06-23
INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS
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Problems solved by technology

The general X-ray conversion target uses a material with a single, fixed thickness. This target material can meet the predetermined requirements for low-energy pulsed electron beams, but for electron beams with energy above MeV and power above GW, due to The destruction of the target material by the electron beam will greatly affect the resolution and irradiation amount of the generated X-rays

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Embodiment Construction

[0010] see figure 1 . figure 1 The part of is cut away to show the internal structure. In the state of use, the present invention is in a sealed state in order to keep the inside as a vacuum.

[0011] The present invention consists of dozens of layers of tantalum foils 1 superimposed on each other, with the same distance between the foils, and metal (generally stainless steel) materials are used around the tantalum foils to fix the entire target stacking device. The stacked target structure of the present invention has sufficient thickness as a whole, greatly increases the three-dimensional space of the entire target, can reduce the degree of damage to the target device when the electron beam acts on it, and can improve the intensity of X-rays and photographic resolution.

[0012] As an example, a stacked target device is composed of 24 layers of tantalum foil, the thickness of a single layer of tantalum foil is 0.05 mm, and the foil spacing is 0.5 mm. The tantalum foil is ...

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Abstract

The invention provides a high-energy X-ray conversion targeting device which relates to high-energy physical technology. The device of the invention comprises multiple layers of tantalum foil and a fixing device, wherein the multiple layers of tantalum foil are arranged in parallel, each layer of tantalum foil is fixedly installed on the fixing device, and the space between every two layers of tantalum foil is vacuum. The invention has the beneficial effect that after pulse electron beams with strong current (kA), high power and MeV energy act with X-ray conversion targets, the generated pulse X-rays have strong irradiation dose (greater than 300 roentgens) and simultaneously have high resolution of mm order of magnitude.

Description

technical field [0001] The present invention relates to high energy physics technology. Background technique [0002] The high-current, high-energy pulsed electron beam interacts with a material with a high atomic number to produce high-resolution and high-dose X-rays. This material is generally called an X-ray conversion target. X-rays are widely used in civil and national defense fields, involving medical X-ray photography, industrial flaw detection, customs inspection, high-energy flash photography, etc. The general X-ray conversion target uses a material with a single, fixed thickness. This target material can meet the predetermined requirements for low-energy pulsed electron beams, but for electron beams with energy above MeV and power above GW, due to The damage to the target material by the electron beam will greatly affect the resolution and irradiation amount of the generated X-rays. Contents of the invention [0003] The technical problem to be solved by the pr...

Claims

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Application Information

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IPC IPC(8): H01J35/08
Inventor 禹海军朱隽石金水
Owner INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS
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