A light scattering measurement device based on magnetic resonance imaging

Abstract

The present invention provides a light scattering measuring device based on magnetic resonance imaging, which is used to measure the distribution of light scattering intensity on the sample surface, and includes: a cylindrical frame, a radio frequency coil, a gradient coil, and a cylindrical magnet, wherein the inner surface of the peripheral wall of the cylindrical frame surrounds a sample placement cavity; the radio frequency coil is wound on the outer surface of the peripheral wall of the cylindrical frame; the gradient coil is wound on the outer layer of the radio frequency coil; the cylindrical magnet is surrounded on the outer layer of the gradient coil; and a plurality of optical fibers, wherein the plurality of optical fibers penetrate the peripheral wall of the cylindrical frame at a plurality of radial angles of the cylindrical frame respectively, and the ends of the plurality of optical fibers are exposed in the sample placement cavity to allow light beams from the plurality of optical fibers to be fed into the sample placement cavity, and scattered light in the sample placement cavity to be fed out from the plurality of optical fibers. The light scattering measuring device based on magnetic resonance imaging has high measurement efficiency and accuracy, and a grayscale image of continuous light scattering intensity distribution is obtained through magnetic resonance imaging, and a signal value of continuous light scattering intensity can be provided.

Description

Technical Field

[0001] The invention relates to the field of optical technology, and in particular to a light scattering measurement device based on magnetic resonance imaging. Background Art

[0002] Light scattering refers to the phenomenon that part of the light deviates from the original direction of propagation when passing through an inhomogeneous medium. The light that deviates from the original direction is called scattered light. Like light absorption, light scattering will also weaken the intensity of light passing through the material. Due to the presence of particles of other substances in the medium, or due to the inhomogeneity of the density of the medium itself, the phenomenon of light scattering has special uses in various fields. The light scattering distribution diagram is of great significance for studying the properties of materials.

[0003] A light scattering measuring instrument is usually used to obtain a light scattering distribution diagram. In the prior art, the light scattering measuring instrument includes a detector, a light source device, a sample rack, and a rotating device. After placing the sample on the sample rack, the light source is directly incident on the surface of the sample, and the detector receives the reflected light beam signal after scattering by the sample surface, thereby obtaining the light scattering intensity signal value in this state. A specific rotating device is used to adjust one, two, or three of the detector, the light source device, and the sample rack, thereby obtaining light scattering intensity signal values ​​at different incident angles, different reflection angles, and different surfaces of the sample. Through the above method, a light scattering distribution diagram is generated by obtaining a large number of discrete light scattering signal values. Although the generated light scattering spectrum is approximately continuous through a large number of rotation operations, it is actually still a discrete light scattering spectrum, and the signal value of light scattering at any position on the sample surface cannot be accurately obtained. The use limitation is poor, and the rotation operation takes a long time during the measurement process, and the measurement efficiency is low. In particular, for measurement objects or measurement conditions with unstable performance, the measurement deviation is large, and even effective measurement cannot be achieved.

[0004] For those skilled in the art, how to reduce the measurement time, improve the measurement efficiency, and obtain a continuous light scattering spectrum is one of the problems to be solved urgently. Summary of the invention

[0005] The object of the present invention is to provide a light scattering measurement device based on magnetic resonance imaging for measuring the distribution of light scattering intensity on a sample surface. The light scattering measurement device based on magnetic resonance imaging exposes the end of an optical fiber in a sample placement cavity of a cylindrical skeleton to transmit incident light and scattered light, thereby forming incident light beams at multiple radial angles and scattered light beams at multiple radial angles; and realizes magnetic resonance imaging through a radio frequency coil, a gradient coil and a cylindrical magnet to obtain a light scattering intensity distribution diagram of the sample surface under different light beams.

[0006] The present invention provides a light scattering measurement device based on magnetic resonance imaging, which is used to measure the distribution of light scattering intensity on a sample surface. The light scattering measurement device based on magnetic resonance imaging comprises:

[0007] A cylindrical frame, wherein the inner surface of the peripheral wall of the cylindrical frame surrounds and forms a sample placement cavity;

[0008] A radio frequency coil, the radio frequency coil being wound around the outer surface of the peripheral wall of the cylindrical frame;

[0009] a gradient coil, the gradient coil being wound around an outer layer of the radio frequency coil;

[0010] A cylindrical magnet, the cylindrical magnet surrounding the outer layer of the gradient coil;

[0011] A plurality of optical fibers penetrate the peripheral wall of the cylindrical skeleton at a plurality of radial angles of the cylindrical skeleton respectively, and the ends of the plurality of optical fibers are exposed in the sample placement cavity to allow light beams from the plurality of optical fibers to be fed into the sample placement cavity, and scattered light in the sample placement cavity to be fed out from the plurality of optical fibers.

[0012] Optionally, the light scattering measurement device based on magnetic resonance imaging further comprises:

[0013] A light source generator, the light source generator having a light source feeding end connected to the plurality of optical fibers for feeding light beams;

[0014] a waveform meter having a signal input terminal for receiving magnetic resonance signals from the radio frequency coil and the gradient coil, and a graphic output terminal for outputting a magnetic resonance light scattering distribution map;

[0015] The optical detector has an optical input end for receiving the scattered light from the plurality of optical fibers for feeding out the scattered light, and a signal value output end for outputting a signal value of a light scattering intensity corresponding to the scattered light.

[0016] Optionally, the light scattering measurement device based on magnetic resonance imaging further comprises:

[0017] A processor having an image input terminal for receiving a magnetic resonance light scattering distribution map from a graphic output terminal of the waveform meter, a signal value input terminal for receiving the light scattering intensity signal value from a signal value output terminal of the light detector, and a graphic output terminal for outputting a continuous light scattering distribution map.

[0018] Optionally, the outer surface of the peripheral wall of the cylindrical skeleton has a protrusion protruding from the outer surface and arranged circumferentially, and the protrusion opens a plurality of through holes for the multiple optical fibers to penetrate the peripheral wall of the cylindrical skeleton, and the through holes for fixing the multiple optical fibers for feeding out scattered light beams and the through holes for fixing the multiple optical fibers for feeding in incident light beams are arranged in an staggered manner.

[0019] Optionally, the plurality of through holes are arranged in a plurality of rings along the circumference of the cylindrical skeleton.

[0020] Optionally, the two through holes located on adjacent rings are staggered in the circumferential direction.

[0021] Optionally, a fastening tube coaxial with the through hole is provided at the opening of the through hole on the outer surface of the cylindrical skeleton, the ends of the multiple optical fibers are connected to optical fiber jumpers, and the fastening tube clamps the optical fiber jumpers at the ends of the multiple optical fibers in the radial direction.

[0022] Optionally, a notch is provided in the peripheral wall of the fastening tube along its axial direction so that the fastening tube has a deformation space in the radial direction, and the peripheral wall of the fastening tube cooperates with a top screw to clamp the optical fiber jumper.

[0023] Optionally, the exposed ends of the plurality of optical fibers for feeding light beams are connected to a collimation head.

[0024] Optionally, the port edge of the cylindrical frame has an annular disk perpendicular to the peripheral wall of the cylindrical frame, and the annular disk is provided with limiting holes for guiding and fixing the multiple optical fibers.

[0025] As can be seen from the above, the present invention provides a light scattering measurement device based on magnetic resonance imaging for measuring the distribution of light scattering intensity on a sample surface. The light scattering measurement device based on magnetic resonance imaging exposes the end of an optical fiber in a sample placement cavity of a cylindrical skeleton to transmit incident light and scattered light, thereby forming incident light beams at multiple radial angles and scattered light beams at multiple radial angles, thereby avoiding the complicated operation of adjusting the angle by continuous rotation in the prior art; and realizes magnetic resonance imaging through a radio frequency coil, a gradient coil and a cylindrical magnet, thereby obtaining a continuous light scattering intensity distribution diagram of the sample surface under different light beams. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of a state in which a light scattering measurement device based on magnetic resonance imaging measures the light scattering intensity of a sample surface in a specific embodiment provided by the present invention;

[0027] Figure 2 A schematic structural diagram of a light scattering measurement device based on magnetic resonance imaging in a specific embodiment of the present invention;

[0028] Figure 3A schematic diagram of a cylindrical skeleton structure of a light scattering measurement device based on magnetic resonance imaging in a specific embodiment of the present invention;

[0029] Figure 4 An axial view of a light scattering measurement device based on magnetic resonance imaging in a specific embodiment of the present invention.

[0030] Wherein, the accompanying drawings are marked as follows:

[0031] 10. Cylindrical frame;

[0032] 11 convex;

[0033] 12 a first through hole;

[0034] 13 second through hole;

[0035] 14 fastening tube;

[0036] 15 top thread;

[0037] 16 annular disk;

[0038] 161 limiting hole;

[0039] 20 RF coil;

[0040] 30 gradient coils;

[0041] 40 cylindrical magnet;

[0042] 50 optical fibers;

[0043] 60 samples. DETAILED DESCRIPTION

[0044] In order to have a clearer understanding of the technical features, purposes and effects of the technical solutions claimed in the present invention, specific implementation methods of the present invention are now described with reference to the accompanying drawings, in which the same reference numerals represent the same parts.

[0045] In order to simplify the drawings, only the parts related to the present invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked.

[0046] See also Figures 1 to 4 As shown, Figure 1 A schematic diagram of a state in which a light scattering measurement device based on magnetic resonance imaging measures the light scattering intensity of a sample surface in a specific embodiment provided by the present invention; Figure 2 A schematic structural diagram of a light scattering measurement device based on magnetic resonance imaging in a specific embodiment of the present invention; Figure 3A schematic diagram of a cylindrical skeleton structure of a light scattering measurement device based on magnetic resonance imaging in a specific embodiment of the present invention; Figure 4 An axial view of a light scattering measurement device based on magnetic resonance imaging in a specific embodiment of the present invention.

[0047] In a specific embodiment, the present invention provides a light scattering measurement device based on magnetic resonance imaging, which is used to measure the distribution of light scattering intensity on the surface of a sample 60. Specifically, Figure 1 As shown, the light scattering measurement device based on magnetic resonance imaging includes a cylindrical frame 10 , a radio frequency coil 20 , a gradient coil 30 , a cylindrical magnet 40 and a plurality of optical fibers 50 .

[0048] The inner surface of the peripheral wall of the cylindrical skeleton 10 surrounds and forms a sample placement cavity, which is used to place the sample 60 to be measured. The sample 60 to be measured can be supported in the sample placement cavity by a bracket. In order to improve the accuracy of the distribution of the light scattering intensity on the surface of the measured sample 60, the center of the sample 60 is roughly placed at the center of the cylindrical skeleton 10, and the center line of the sample 60 coincides with the central axis of the cylindrical skeleton 10.

[0049] The radio frequency coil 20 is wound around the outer surface of the peripheral wall of the cylindrical frame 10, the gradient coil 30 is wound around the outer layer of the radio frequency coil 20, and the cylindrical magnet 40 is surrounded by the outer layer of the gradient coil 30, with a space between the cylindrical magnet 40 and the gradient coil 30. In this way, the three can form a magnetic field, so that the sample 60 is placed in the magnetic field after being placed in the sample placement cavity of the cylindrical frame 10. Under the action of the magnetic field, a magnetic resonance image of the surface of the sample 60 can be obtained, thereby obtaining a grayscale image of the distribution of continuous light scattering intensity under different light.

[0050] The multiple optical fibers 50 penetrate the peripheral wall of the cylindrical frame 10 at multiple radial angles of the cylindrical frame 10, and the ends of the multiple optical fibers 50 are exposed in the sample placement cavity, so as to allow the light beams from the multiple optical fibers 50 to be fed into the sample placement cavity, and the scattered light in the sample placement cavity to be fed out from the multiple optical fibers 50. That is, a part of the multiple optical fibers 50 is used to feed the incident light from the light source into the sample placement cavity through the ends exposed in the sample placement cavity, and irradiate the surface of the sample 60 to be tested; another part of the multiple optical fibers 50 is used to feed the light beam reflected by the surface of the sample 60 to be tested in the sample placement cavity out from the ends exposed in the sample placement cavity.

[0051] When the light scattering measurement device based on magnetic resonance imaging of the above structure is used to measure the distribution of the light scattering intensity on the surface of the sample 60, after the multiple optical fibers 50 penetrate the peripheral wall of the cylindrical skeleton 10, the incident light beams at multiple angles can be respectively irradiated on the surface of the sample 60 without rotating the sample 60 and the light source, so as to obtain the distribution of the scattering intensity of the light beams from multiple different incident angles on the surface of the sample 60. In addition, the multiple optical fibers 50 used to feed the reflected light beams can obtain reflected light beams at multiple angles at the same time, so that when measuring the scattering intensity of the light beam on the surface of the sample 60 at the same incident angle, the reflected light beams at multiple reflection angles can be obtained at the same time, which reduces the workload of changing the receiving reflected light beam device to continuously change the angle to obtain the reflected light beams of different reflections, and improves the measurement efficiency.

[0052] When the optical fiber 50 for feeding the incident light beam irradiates the incident light beam onto the surface of the sample 60, a magnetic resonance image is obtained at the same time under the magnetic field generated by the radio frequency coil 20, the gradient coil 30 and the cylindrical magnet 40, and the magnetic resonance image represents the light scattering intensity distribution of the surface of the sample 60 under the incident light beam. In this way, the light scattering measurement device based on magnetic resonance imaging applies magnetic resonance imaging technology to light scattering measurement, thereby breaking through the problem of the discrete light scattering intensity distribution diagram obtained in the prior art, and more accurately obtaining the light scattering intensity value at each position on the surface of the sample 60.

[0053] Further, in a specific embodiment, the light scattering measurement device based on magnetic resonance imaging includes a light source generator, a waveform meter and a light detector. The light source generator is used to provide light sources with different requirements for irradiating the surface of the sample 60, and the light source generator has a light source feeding end connected to multiple optical fibers 50 for feeding light beams, that is, the light source feeding end of the light source generator is connected to multiple optical fibers 50 for feeding light beams, and when measuring the light scattering intensity on the surface of the sample 60, there is only one optical fiber 50 for feeding light beams that can be connected to the light source feeding end of the light source generator, so that the light source is fed into the sample placement cavity from the optical fiber 50. The waveform meter has a signal input end for receiving magnetic resonance signals from the radio frequency coil 20 and the gradient coil 30, and a graphic output end for outputting a magnetic resonance light scattering distribution map, so that when the sample 60 is placed in the magnetic field, the grayscale map of the current light scattering intensity distribution of the sample 60 is obtained under the action of magnetic resonance, and the obtained continuous grayscale map of the light scattering intensity distribution is output through the waveform meter. The light detector has a light input end for receiving scattered light from a plurality of optical fibers 50 for feeding out scattered light, and a signal value output end for outputting a light scattering intensity signal value corresponding to the scattered light. That is, the light input end of the light detector is connected to a plurality of optical fibers 50 for feeding out scattered light, and the plurality of optical fibers 50 are all connected to the light input end. When an incident light beam at a certain angle interacts with the surface of the sample 60, scattered light beams at different angles are generated. These scattered light beams are transmitted to the light detector through the plurality of optical fibers 50 for feeding out scattered light. The light detector obtains the light scattering signal value at the corresponding position of the surface of the sample 60 and the end of the optical fiber 50 by analyzing the scattered light beams from the plurality of optical fibers 50. In this way, the light scattering intensity values ​​of the surface of the sample 60 at multiple scattering angles can be obtained simultaneously.

[0054] The light scattering measurement device based on magnetic resonance imaging combines magnetic resonance imaging with the measured discrete light scattering signal values, so that not only the discrete light scattering signal values ​​on the surface of the sample 60 can be obtained, but also the grayscale image of the continuous light intensity can be obtained. In addition, the light scattering distribution image of the sample 60 in the entire space can be obtained by penetrating the multiple optical fibers 50 of the cylindrical skeleton 10, without the need to measure the light scattering intensity values ​​at different angles by rotating the device or manually adjusting each instrument, thereby improving the measurement efficiency, and is particularly suitable for situations where the measurement object or measurement conditions are unstable.

[0055] With respect to the above embodiment, the light scattering measurement device based on magnetic resonance imaging further includes a processor.

[0056] The processor is used to process the above-mentioned continuous light scattering intensity grayscale image and discrete light scattering intensity signal values. Specifically, the processor has an image input end for receiving the magnetic resonance light scattering distribution image from the graphic output end of the waveform meter, a signal value input end for receiving the light scattering intensity signal value from the signal value output end of the light detector, and a graphic output end for outputting the continuous light scattering distribution image. That is, the image input end of the processor is connected to the image output end of the waveform meter, and its signal value input end is connected to the signal value output end of the light detector, and then the grayscale image of the continuous light scattering intensity and the discrete light scattering intensity signal value are registered, and a continuous light scattering distribution image is obtained. The continuous light scattering distribution image refers to the correspondence of the discrete light scattering intensity signal value to the grayscale image of the continuous light scattering intensity, and then the light scattering intensity at any position on the surface of the sample 60 can be determined by the functional relationship between the grayscale value and the light scattering intensity signal value.

[0057] Combination Figure 2 and Figure 3 As shown, the cylindrical skeleton 10 of the light scattering measurement device based on magnetic resonance imaging is optimized in design, and the outer surface of the peripheral wall of the cylindrical skeleton 10 has a protrusion 11 protruding from the outer surface and arranged circumferentially, and the protrusion 11 is annular on the outer surface of the peripheral wall of the cylindrical skeleton 10, and through holes for multiple optical fibers 50 to penetrate the peripheral wall of the cylindrical skeleton 10 are opened on the protrusion 11, wherein the first through holes 12 for feeding the multiple optical fibers 50 of the incident light beam and the second through holes 13 for fixing the multiple optical fibers 50 for feeding out scattered light are arranged in an alternating manner, so as to more accurately obtain the scattering intensity of different incident light beams at various positions on the surface of the sample 60 and the light scattering intensity of the surface of the sample 60 at different scattering angles, thereby ensuring the effectiveness and accuracy of the obtained light scattering intensity distribution.

[0058] The plurality of through holes are arranged in a plurality of rings along the circumference of the cylindrical skeleton 10. In other words, the through holes are arranged along the cylindrical skeleton 10 to form a circle, and a plurality of circles of through holes are provided on the protrusion 11. In the through holes on the same circle, the first through hole 12 for fixing the optical fiber 50 for feeding the incident light beam and the second through hole 13 for fixing the optical fiber 50 for feeding the scattered light beam are arranged alternately, and the two through holes located on adjacent rings are arranged in a staggered manner in the circumferential direction. In this way, the incident position of the incident light beam and the scattering position of the scattered light beam are evenly and alternately arranged, so that the light scattering intensity value can be captured randomly and effectively, and the accuracy of the light scattering intensity distribution diagram obtained through the light scattering intensity signal value and the grayscale diagram of the light scattering intensity is improved.

[0059] See also Figure 3 and 4As shown, a fastening cylinder 14 coaxial with the through hole is arranged at the opening of the through hole on the outer surface of the cylindrical skeleton 10, that is, the fastening cylinder 14 is fixed to the outer surface of the cylindrical skeleton 10 and is coaxially arranged with the opening of the through hole, and the ends of the optical fibers 50 are provided with optical fiber jumpers 50 for connecting, and the optical fiber jumpers 50 are inserted into the fastening cylinder 14 and the through hole, and the fastening cylinder 14 clamps the optical fiber jumpers 50 at the ends of the optical fibers 50 in the radial direction, thereby firmly fixing the optical fibers 50.

[0060] Furthermore, the peripheral wall of the fastening tube 14 is provided with a notch along its axial direction so that the fastening tube 14 has a deformation space in the radial direction, so that when the optical fiber 50 jumper is inserted into the fastening tube 14, there is an adjustment space, and it is convenient to fix and install. At the same time, the peripheral wall of the fastening tube 14 is also matched with a top screw 15, and the top screw 15 is used to limit the position of the fastening tube 14 to fix the optical fiber 50 jumper.

[0061] The exposed sections of the plurality of optical fibers 50 for feeding light beams are connected to a collimating head, thereby converting the non-parallel light from the optical fibers 50 into parallel light.

[0062] The end edge of the cylindrical frame 10 has an annular disk 16 perpendicular to the peripheral wall of the cylindrical frame 10, and the annular disk 16 is provided with limiting holes 161 for guiding and fixing the plurality of optical fibers 50. The plurality of optical fibers 50 pass through the limiting holes 161 on the annular disk 16, thereby guiding the optical fibers 50 out of the light scattering measurement device based on magnetic resonance imaging, avoiding a disorderly arrangement in the light scattering measurement device based on magnetic resonance imaging, and facilitating connection and maintenance with a light detector and a light source generator.

[0063] Based on the above description, the present invention provides a light scattering measurement device based on magnetic resonance imaging for measuring the distribution of light scattering intensity on the surface of a sample 60. The light scattering measurement device based on magnetic resonance imaging exposes the end of an optical fiber 50 in the sample placement cavity of a cylindrical skeleton 10 to transmit incident light and scattered light, thereby forming incident light beams at multiple radial angles and scattered light beams at multiple radial angles, thereby avoiding the complicated operation of adjusting the angle by continuous rotation in the prior art; and realizes magnetic resonance imaging through a radio frequency coil 20, a gradient coil 30 and a cylindrical magnet 40, and obtains a grayscale image of the continuous light scattering intensity distribution on the surface of the sample 60 under different light beams. In addition, the grayscale image of the continuous light scattering intensity is aligned with the discrete light scattering intensity signal value to obtain a continuous light scattering distribution map, and then a continuous light scattering intensity signal value can be obtained on the continuous light scattering distribution map, thereby improving the application value of the light scattering intensity distribution map.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A light scattering measurement device based on magnetic resonance imaging, used to measure the distribution of light scattering intensity on a sample surface, characterized in that: The light scattering measurement device based on magnetic resonance imaging comprises: A cylindrical frame, wherein the inner surface of the peripheral wall of the cylindrical frame surrounds and forms a sample placement cavity; A radio frequency coil, the radio frequency coil being wound around the outer surface of the peripheral wall of the cylindrical frame; a gradient coil, the gradient coil being wound around an outer layer of the radio frequency coil; A cylindrical magnet, the cylindrical magnet surrounding the outer layer of the gradient coil; A plurality of optical fibers, the plurality of optical fibers respectively penetrating the peripheral wall of the cylindrical skeleton at a plurality of radial angles of the cylindrical skeleton, and the ends of the plurality of optical fibers are exposed in the sample placement cavity, so as to allow light beams from some of the plurality of optical fibers to be fed into the sample placement cavity, and scattered light in the sample placement cavity to be fed out from some of the plurality of optical fibers; The light scattering measurement device based on magnetic resonance imaging further comprises: A light source generator, the light source generator having a light source feeding end connected to the plurality of optical fibers for feeding the light beam, and only one of the optical fibers for feeding the light beam is connected to the light source feeding end; a waveform meter having a signal input terminal for receiving magnetic resonance signals from the radio frequency coil and the gradient coil, and a graphic output terminal for outputting a magnetic resonance light scattering distribution map, wherein the magnetic resonance light scattering distribution map represents a grayscale map of a continuous light scattering intensity distribution; a light detector having a light input end for receiving the scattered light from the plurality of optical fibers for feeding out the scattered light, and a signal value output end for outputting light scattering intensity signal values ​​corresponding to the scattered light, wherein the plurality of optical fibers are in communication with the light input end so that the light detector is used to output a plurality of discrete light scattering intensity signal values; The light scattering measurement device based on magnetic resonance imaging further comprises: A processor, the processor having an image input terminal for receiving the magnetic resonance light scattering distribution map from the graphic output terminal of the waveform meter, a signal value input terminal for receiving the light scattering intensity signal value from the signal value output terminal of the light detector, and a graphic output terminal for outputting a continuous light scattering distribution map; the processor is used to perform registration processing on the continuous magnetic resonance light scattering distribution map and a plurality of discrete light scattering intensity signal values ​​to obtain a continuous light scattering distribution map; The registration process refers to matching a plurality of discrete light scattering intensity signal values ​​to the continuous magnetic resonance light scattering distribution map, and determining the light scattering intensity through the functional relationship between the grayscale value of the magnetic resonance light scattering distribution map and the light scattering intensity signal value.

2. The light scattering measurement device based on magnetic resonance imaging according to claim 1, characterized in that: The outer surface of the peripheral wall of the cylindrical skeleton has a protrusion protruding from the outer surface and arranged circumferentially, and the protrusion opens a plurality of through holes for the multiple optical fibers to penetrate the peripheral wall of the cylindrical skeleton, and the through holes for fixing the multiple optical fibers for feeding out scattered light beams and the through holes for fixing the multiple optical fibers for feeding in incident light beams are arranged in an alternating manner.

3. The light scattering measurement device based on magnetic resonance imaging according to claim 2, characterized in that: The plurality of through holes are arranged in a plurality of ring shapes along the circumference of the cylindrical frame.

4. The light scattering measurement device based on magnetic resonance imaging according to claim 3, characterized in that: The two through holes located on adjacent rings are staggered in the circumferential direction.

5. The light scattering measurement device based on magnetic resonance imaging according to claim 2, characterized in that: The through hole is located at the opening of the outer surface of the cylindrical skeleton, and a fastening cylinder coaxial with the through hole is arranged. The ends of the multiple optical fibers are connected to the optical fiber jumpers, and the fastening cylinder clamps the optical fiber jumpers at the ends of the multiple optical fibers in the radial direction.

6. The light scattering measurement device based on magnetic resonance imaging according to claim 5, characterized in that: The peripheral wall of the fastening tube is provided with a notch along its axial direction so that the fastening tube has a deformation space in the radial direction, and the peripheral wall of the fastening tube cooperates with the top screw to clamp the optical fiber jumper.

7. The light scattering measurement device based on magnetic resonance imaging according to claim 1, characterized in that: The exposed ends of the plurality of optical fibers for feeding light beams are connected to a collimation head.

8. The light scattering measurement device based on magnetic resonance imaging according to claim 1, characterized in that: The port edge of the cylindrical frame is provided with an annular disk which is perpendicular to the peripheral wall of the cylindrical frame, and the annular disk is provided with limiting holes for guiding and fixing the plurality of optical fibers.

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