阅读说明：本技术 一种用于等离子体x射线诊断的碎片防护装置 (Fragment protection device for plasma X-ray diagnosis ) 是由 穆宝忠 李文杰 徐捷 王新 于 2020-06-24 设计创作，主要内容包括：本发明涉及一种用于等离子体X射线诊断的碎片防护装置,包括防护材料及防护支撑组件(3)、外部固定组件和碎片收集装置(4),防护材料包括耐高温塑料件(3.2)、工程塑料件(3.5)和金属滤片(3.7),防护支撑组件包括用于耐高温塑料件(3.2)的第一支撑件(3.1)和第一压板(3.3)、用于工程塑料件(3.5)和金属滤片(3.7)的第二支撑件(3.6)、用于金属滤片(3.7)的第二压板(3.11)以及防护插拔件(3.4),外部固定组件包括包裹防护支撑组件的保护外壳(2)、设于保护外壳(2)前端的鼻锥(1)和后端的转接件(5),碎片收集装置(4)嵌套在保护外壳(2)的底部。与现有技术相比,本发明具有安全系数与诊断准确性较高、便于重复实验等优点。(The invention relates to a fragment protection device for plasma X-ray diagnosis, which comprises a protection material, a protection support component (3), an external fixing component and a fragment collection device (4), wherein the protection material comprises a high-temperature resistant plastic piece (3.2), an engineering plastic piece (3.5) and a metal filter piece (3.7), the protection support component comprises a first support piece (3.1) and a first pressing plate (3.3) which are used for the high-temperature resistant plastic piece (3.2), a second support piece (3.6) for engineering working of plastics (3.5) and metal filter piece (3.7), a second clamp plate (3.11) and protection plug spare (3.4) for metal filter piece (3.7), outside fixed subassembly is including parcel protection supporting component's protecting sheathing (2), locate nose cone (1) and adaptor (5) of rear end of protecting sheathing (2) front end, piece collection device (4) nestification is in the bottom of protecting sheathing (2). Compared with the prior art, the method has the advantages of higher safety coefficient and diagnosis accuracy, convenience in repeated experiments and the like.)

1. A fragment protection device for plasma X-ray diagnosis is characterized by comprising a protection material, a protection support component (3), an external fixing component and a fragment collection device (4), wherein the protection material comprises a high-temperature-resistant plastic piece (3.2), an engineering plastic piece (3.5) and a metal filter piece (3.7), the protection support component comprises a first support piece (3.1) and a first pressing plate (3.3) which are used for the high-temperature-resistant plastic piece (3.2), a second support piece (3.6) which is used for the engineering plastic piece (3.5) and the metal filter piece (3.7), a second pressing plate (3.11) and a protection plug piece (3.4) which are used for the metal filter piece (3.7), the external fixing component comprises a protection shell (2) wrapping the protection support component, a nose cone (1) arranged at the front end of the protection shell (2) and an adapter piece (5) arranged at the rear end of the protection shell (2), the debris collection device (4) is nested in the bottom of the protective housing (2).

2. A debris shield for plasma X-ray diagnostics as claimed in claim 1, characterized in that said high temperature resistant plastic part (3.2) is located between the first support (3.1) and the first pressure plate (3.3).

3. A debris guard for plasma X-ray diagnostics according to claim 2 characterized in that the refractory plastic part (3.2) is fixed between the first support (3.1) and the first pressure plate (3.3) with an inclination angle of 45 °.

4. The debris protector for plasma X-ray diagnosis according to claim 2, characterized in that a set of opposite sides of the protection plug member are provided with a notch, the engineering plastic member (3.5) is embedded in one of the notches, and the high temperature resistant plastic member (3.2) is embedded in the other notch after being assembled with the first support member (3.1) and the first pressure plate (3.3).

5. A debris shielding device for plasma X-ray diagnosis according to claim 4, characterized in that the second supporting member (3.6) is fixed on the outer surface of the engineering plastic member (3.5) opposite to the shielding plug member (3.4).

6. A debris protector for plasma X-ray diagnostics as claimed in claim 1, characterized in that the second support (3.6) is provided with a groove in which a plurality of support clear apertures (3.6.1) are symmetrically arranged.

7. A debris guard for plasma X-ray diagnostics according to claim 6 characterized in that the number of said metal filters (3.7) is the same as the number of support clear apertures (3.6.1), each support clear aperture (3.6.1) being covered with one metal filter (3.7).

8. The debris protector for plasma X-ray diagnosis of claim 6, wherein a second pressure plate (3.11) is further nested in the groove of the second support (3.6), the second pressure plate (3.11) is provided with pressure plate light through holes (3.11.1) which are the same as the light through holes (3.6.1) of the second support (3.6) in position and number, the periphery of the pressure plate light through hole (3.11.1) is further provided with a metal filter groove (3.11.5) for fixing the metal filter (3.7), and the metal filter (3.7) is located in the metal filter groove (3.11.5).

9. A debris guard for plasma X-ray diagnostics as claimed in claim 1, characterized in that the tip of the guard plug (3.4) is provided with a plug grip (3.4.1).

10. A debris shielding device for plasma X-ray diagnosis according to claim 1, wherein the first supporting member (3.1) and the first pressing plate (3.3) are connected by screws, the engineering plastic member (3.5) and the metal filter (3.7) are connected by screws, and the first supporting member (3.1) and the second supporting member (3.6) are connected by screws with the shielding plug member (3.4).

Technical Field

The invention relates to the field of plasma X-ray diagnostic imaging, in particular to a fragment protection device for plasma X-ray diagnosis.

Background

Plasma X-ray diagnostics is an important area in Inertial Confinement Fusion (ICF) research. In the experimental process of ICF, a plurality of high-power laser beams act on a micro target pellet containing deuterium-tritium (DT) fuel and other substances, and generate X-rays to be diagnosed and high-temperature plasma and high-temperature and high-speed fragments. Plasma and fragments generated by targeting can damage core elements of the diagnostic equipment, and take diagnostic systems such as KB/KBA microscope, Wolter microscope, curved crystal, pinhole and the like as examples, the plasma and the fragments generated by targeting can damage working surfaces of a reflector and the curved crystal or plate a layer of substance on the working surfaces or the fragments block the pinhole, thereby causing permanent and irreversible damage to the core elements of the diagnostic equipment and seriously affecting the performance of the diagnostic equipment.

Currently, the protective measures for diagnostic systems only stay with single-layer metal filters, such as: beryllium piece still has the problem of incomplete protection, easy damage and difficult replacement to rear end plasma X-ray diagnostic equipment. On the premise of not influencing the performance of a diagnostic system, a fragment protection device capable of effectively protecting the core elements of the plasma X-ray diagnostic system is urgently needed.

Disclosure of Invention

The invention aims to overcome the defects that fragments generated by target shooting damage the working surfaces of a reflector and a curved crystal and the protective material is not easy to replace in the prior art, and provide a fragment protective device for plasma X-ray diagnosis.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a piece protector for plasma X-ray diagnosis, includes protective material and protection supporting component, external fixation subassembly and piece collection device, protective material includes high temperature resistant working of plastics, engineering working of plastics and metal filter, protection supporting component is including being used for first support piece and the first clamp plate of high temperature resistant working of plastics, being used for the second support piece of engineering working of plastics and metal filter, being used for the second clamp plate and the protection plug spare of metal filter, external fixation subassembly is including the parcel protection supporting component's protecting sheathing, locating the nose cone of protecting sheathing front end with locate the adaptor of protecting sheathing rear end, piece collection device nestification is in protecting sheathing's bottom.

The high-temperature-resistant plastic part is positioned between the first supporting piece and the first pressing plate.

Furthermore, the high-temperature-resistant plastic part is fixed between the first supporting piece and the first pressing plate at an inclined angle of 45 degrees, and when high-temperature and high-speed fragments impact the high-temperature-resistant plastic part, the first supporting piece achieves a buffering effect.

Furthermore, all be equipped with a breach on a set of relative side of protection plug spare, one of them breach is embedded to the engineering working of plastics, and another breach is embedded to the high temperature resistant working of plastics after accomplishing with first support piece and first clamp plate equipment.

Furthermore, the second support piece is fixed on the outer surface of the engineering plastic piece opposite to the protection plug piece.

The second support piece is provided with a groove, and a plurality of support piece light through holes are symmetrically formed in the groove.

Furthermore, the number of the metal filter sheets is the same as that of the light through holes of the support members, and each light through hole of the support member is covered with one metal filter sheet.

Further, a second pressing plate is nested in the groove of the second supporting piece, pressing plate light through holes which are identical to the light through holes of the supporting piece on the second supporting piece in position and quantity are formed in the second pressing plate, a metal filter sheet groove used for fixing a metal filter sheet is further formed in the pressing plate light through holes, and the metal filter sheet is located in the metal filter sheet groove.

The top of protection plug spare is equipped with plug spare handle, after the experiment of shooing at every turn ended, easily takes out protection plug spare and inspects and change piece protective material.

The nose cone positioned at the front end of the protective shell is used for reducing the number of fragments entering the protective plug-pull piece.

The protective shell is arranged at the front end of X-ray diagnosis equipment through a connector, and the X-ray diagnosis equipment is a KB microscope, a KBA microscope, a Wolter microscope, a pinhole camera or a curved crystal imaging system.

The high-temperature resistant plastic part is made of polyimide, has good heat resistance, and can normally work at high temperature to resist the damage of high-temperature plasma to diagnostic equipment.

The engineering plastic part is made of polycarbonate, has good mechanical property, mechanical strength, toughness and rigidity, and resists the impact of high-speed fragments generated by target shooting.

The metal filter disc is made of one or a combination of beryllium, aluminum, iron and titanium, plays a role in fragment protection, and realizes selection of an X-ray photon energy section by combining multiple types or thicknesses according to X-ray diagnostic equipment.

The first supporting piece and the first pressing plate are connected through screws, the engineering plastic piece and the metal filter piece are connected through screws, and the first supporting piece, the second supporting piece and the protection plug piece are connected through screws.

Compared with the prior art, the invention has the following beneficial effects:

1. the invention is provided with three layers of protective materials, namely a high-temperature resistant plastic part, an engineering plastic part and a metal filter disc, to protect the core elements of the diagnosis equipment, and simultaneously, the influence on the signal-to-noise ratio of the diagnosis result is reduced, and the invention has higher safety factor and diagnosis accuracy.

2. After the target practice experiment is finished, the fragments and the damaged high-temperature-resistant plastic pieces are collected by the fragment collecting device, so that the high-temperature-resistant plastic pieces are prevented from falling into the target chamber, the collected fragments can be used for electrochemical analysis, and the practicability of the device is improved.

3. According to the invention, the plug piece handle is arranged at the top end of the protective plug piece, so that the protective plug piece is easy to take out for inspection and replacement of fragment protective materials after each target practice is finished, the space posture of the X-ray imaging diagnostic equipment at the rear end is not affected, and repeated experiments are facilitated.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an assembled view of the present invention;

FIG. 3 is an assembled view of the protective material and the protective support assembly of the present invention;

FIG. 4 is a schematic structural view of a protective insert according to the present invention;

FIG. 5 is a schematic structural view of a second support member according to the present invention;

FIG. 6 is a schematic view of a second platen according to the present invention;

FIG. 7 is a schematic diagram of the arrangement of experimental components according to the present invention;

FIG. 8 is a graph of X-ray transmission as a function of protective material thickness in accordance with the present invention.

Reference numerals:

1-nose cone; 2-a protective housing; 3-protective material and protective support component; 3.1-a first support; 3.2-high temperature resistant plastic parts; 3.3-a first platen; 3.4-protective plug-pull piece; 3.4.1-plug piece handle; 3.5-engineering plastic parts; 3.6-a second support; 3.6.1-support piece clear aperture; 3.7-metal filter disc; 3.11-second platen; 3.11.1-pressing plate light through hole; 3.11.5-metal filter slot; 4-a debris collection device; 5-an adapter; 6-experimental target ball; 7-a transfer base plate; 8-multichannel KB X-ray microscope; 9-detector.

Detailed Description

The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

As shown in fig. 1 and fig. 2, a fragment protection device for plasma X-ray diagnosis, which protects the core components of the diagnosis equipment, has higher safety factor and diagnosis accuracy, comprises a protection material and a protection support component 3, an external fixing component and a fragment collection device 4, wherein the protection material comprises a high temperature resistant plastic piece 3.2, an engineering plastic piece 3.5 and a metal filter piece 3.7, the protection support component comprises a first support piece 3.1 and a first pressing plate 3.3 for the high temperature resistant plastic piece 3.2, the second supporting piece 3.6 used for engineering plastic pieces 3.5 and metal filter pieces 3.7, the second pressing plate 3.11 used for the metal filter pieces 3.7 and the protective plugging piece 3.4, the external fixing component comprises a protective shell 2 wrapping the protective supporting component, a nose cone 1 arranged at the front end of the protective shell 2 and an adapter piece 5 arranged at the rear end of the protective shell 2, and the fragment collecting device 4 is nested at the bottom of the protective shell 2.

As shown in fig. 3, the refractory plastic part 3.2 is located between the first support 3.1 and the first press plate 3.3.

The high temperature resistant plastic part 3.2 is fixed between the first support 3.1 and the first press plate 3.3 at an inclination angle of 45 °.

As shown in fig. 4, a group of opposite side surfaces of the protective plug member are provided with a notch, the engineering plastic member 3.5 is embedded into one of the notches, and the high-temperature resistant plastic member 3.2 is embedded into the other notch after being assembled with the first supporting member 3.1 and the first pressing plate 3.3.

The second support element 3.6 is fixed on the outer surface of the engineering plastic part 3.5 opposite to the protective plug-in part 3.4.

As shown in fig. 5, the second supporting member 3.6 is provided with a groove, and a plurality of supporting member light-passing holes 3.6.1 are symmetrically arranged in the groove.

The number of the metal filter sheets 3.7 is the same as that of the support light through holes 3.6.1, and each support light through hole 3.6.1 is covered with one metal filter sheet 3.7.

As shown in fig. 6, a second pressing plate 3.11 is further nested in the groove of the second supporting member 3.6, the second pressing plate 3.11 is provided with pressing plate light holes 3.11.1 having the same positions and number as the light holes 3.6.1 of the supporting member on the second supporting member 3.6, metal filter grooves 3.11.5 for fixing the metal filters 3.7 are further arranged around the pressing plate light holes 3.11.1, and the metal filters 3.7 are located in the metal filter grooves 3.11.5.

The top of protection plug-in 3.4 is equipped with plug-in handle 3.4.1.

The first supporting piece 3.1 is connected with the first pressing plate 3.3 through screws, the engineering plastic piece 3.5 is connected with the metal filter piece 3.7 through screws, and the first supporting piece 3.1, the second supporting piece 3.6 and the protective plugging piece 3.4 are connected through screws.

As shown in fig. 7, the protective housing 2 is attached to the front end of the multichannel KB X-ray microscope 8 via an adaptor 5, and is connected to the multichannel KB X-ray microscope 8 via an adaptor base 7.

The high-temperature resistant plastic part 3.2 is made of polyimide, has good heat resistance, and can normally work at high temperature to resist the damage of high-temperature plasma to diagnostic equipment.

The engineering plastic part 3.5 is made of polycarbonate, has good mechanical property, mechanical strength, toughness and rigidity, and resists the impact of high-speed fragments generated by target shooting.

The metal filter 3.7 is made of one or a combination of beryllium, aluminum, iron and titanium, plays a role of fragment protection, and realizes the selection of an X-ray photon energy section by combining a plurality of types or thicknesses according to X-ray diagnostic equipment.

As shown in fig. 8, the transmittances of the high temperature resistant plastic member 3.2, the engineering plastic member 3.5 and the metal filter 3.7 decrease with the increase of the thickness, and the combination of the debris protective materials with the corresponding thickness is selected according to the characteristics of the laser energy and the X-ray energy point to be diagnosed.